The AVD Manager in Android Studio doesn't show my device but adb devices
does show it. Am I missing something obvious here?

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4My device didnt show up till i plugged it in while in studio. Might have been something else though, v0.1! – AJak May 16 '13 at 20:53
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14Just in case somebody finds this question while having the same problem as I did: if your device isn't visible in `adb devices` either, your problem could be that you are using a USB 3 port. Lollipop can only connect if you use a USB 2 port. – Kitalda Jun 25 '15 at 11:03
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42Go to `Settings -> About phone -> Tap on Build number several times`, then go to `Settings -> Developer -> USB debugging` – onmyway133 Feb 07 '18 at 10:34
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1Android studio has a Tools->Adb Connection assistant. It has helped me, maybe it will help you too. Following it is faster than reading the answers here. – tjb Feb 01 '19 at 09:21
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You have to enable the **USB debugging** option in **Developer Options** of your phone's settings. Android Studio recognized my phone after doing this. Make sure to grant all the requested permissions that pop up on the phone's screen when you enable this option. Checkout my answer below: https://stackoverflow.com/a/58258281/10259491 – Raj Narayanan Oct 06 '19 at 14:42
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In my case I just have to toggle USB Debugging to off and then on again which prompted a message and upon selecting Yes then it showed up in the Android Studio – Naga Oct 21 '19 at 13:34
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I tried everything and in the end, I came to know that the cable borrowed from my friend to connect with ADB Wifi wasn't supportive at all. I changed the cable and it worked. – Bilal Saeed Oct 04 '22 at 06:45
73 Answers
I recently had trouble with this, and regardless of what I did(restart adb, edit adb_usb.ini, restart computer+device+swap usb port, reinstall studio etc. etc.) I just couldnt get it to work, and could not even detect my device using 'adb devices'. Finally after about 2 hours of googling and testing, someone suggested switching to PTP instead of MTP on my device. When I did this I got a popup on my device asking me to allow my mac access and suddenly everything worked(had to restart studio for it to show up there as well though).
I might be bumping this thread now, but it is the first result on google search, and I had a lot of trouble finding an answer for this problem, so I thought this should be added as a solution.

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26turning PTP or MTP on if off, or off if it is on triggers a popup, then suddenly everything works. i do not know why i need to toggle PTP or MTP for android studio to recognize my device. to set PTP or MTP -> "Modern Android devices use the MTP or PTP protocols — you can choose which one you prefer. To select a USB connection protocol, open the Settings app, tap Storage, tap the menu button, and tap USB computer connection. " http://www.howtogeek.com/192732/android-usb-connections-explained-mtp-ptp-and-usb-mass-storage/ (thank you LGBo) – tmr Oct 08 '14 at 16:49
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6@Suspended PTP = connect as camera, MTP = connect as media device. You should be able to do a web search if you want to know more. – Apr 09 '16 at 15:06
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23the reason why it worked when you switched to `PTP` is that the first time you ran it, you did't authorize USB debugging from the dialog on your phone. if you want to use `MTP` try revoking USB authorization from **settings -> developer options -> revok usb authorization** then start over. – Nixon Kosgei Mar 15 '17 at 04:22
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1What does it mean when the USB device is not recognized on certain projects within AS but is recognized on others? – tccpg288 Apr 30 '18 at 23:11
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1When I upgraded to Android 8.1, I suddenly started having this issue. Following the instructions provided by @tmr resolved the issue for me! – gunner_dev Jul 13 '18 at 18:25
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2That worked fine, thank you! In my case, I have Windows 10 laptop and LG Stylo 5. I chose pop up option of "MIDI" on a phone after connecting it to laptop (instead of "Storage") – Liker777 Mar 28 '20 at 17:07
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1God bless you! No words can show my appraciation for how much this answer helped me. – fateflame May 18 '20 at 02:44
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This answer helped me, not exactly like it says but on my phone it was set to "No file transfer" by default and the option to change it to MTP was burried pretty deep, a notification would be nice, Motorola! – soger Jan 12 '22 at 17:02
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I tried everything and in the end, I came to know that the cable borrowed from my friend to connect with ADB Wifi wasn't supportive at all. I changed the cable and it worked. – Bilal Saeed Oct 04 '22 at 06:44
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For me it was easier I just started to read through this stackoverflow thread and then magically popup appeared :) – Shalugin Aug 02 '23 at 21:32
On your device:
Go to settings/ developer settings/ allow USB debug mode
If 'allow USB debug mode' option is disabled. Then you might have the device currently connected to your PC. Disconnect the device and the option should now be available
Note: On Android 4.2 and newer, Developer options is hidden by default. To make it available, go to Settings > About phone and tap Build number seven times. Return to the previous screen to find Developer options.
If it still doesn't help, you can google it with this expression:
How to enable developer options on YOUR_PHONE_TYPE
Just in case it saves anyone 5 minutes of head-scratching, 'Developer options' is now under 'Settings/System & updates/Developer options'

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11From the android docs: `Note: On Android 4.2 and newer, Developer options is hidden by default. To make it available, go to Settings > About phone and tap Build number seven times. Return to the previous screen to find Developer options.` https://developer.android.com/studio/run/device.html#setting-up – Neil Sarkar Nov 05 '16 at 02:00
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My USB debug mode got disabled somehow. Perhaps from a software update. So don't overlook checking if USB debug mode is enabled, even if you enabled it before. – Yahya Uddin Jun 19 '20 at 07:59
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Even if debug mode is enabled try to refresh it switching on and off owrked for me ;) – homerun Jul 11 '21 at 10:14
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1Just in case it saves anyone 5 minutes of head-scratching, 'Developer options' is now under 'Settings/System & updates/Developer options' – paddyfields Apr 07 '22 at 12:50
To change what your application defaults to when you click run or debug in Android Studio, follow these steps:
1. go to Run
2. Click on Edit Configurations
3. Select the project
4. find the Target Device section under the General tab on the Android Application page.
That seems to be where you toggle what the project builds to. If you're importing a project it actually defaults to Emulator, not sure why. You can also select "Open Select Deployment Target Dialog" to list both connected as well as emulated devices.

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3I have just set my build target to USB device in the manner specified here, and then all of a sudden the IDE cannot recognise the R class. – Ogre Aug 05 '13 at 00:04
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i don't see Run -> Edit Configurations anywhere in android studio... screenshot? – bharal Aug 01 '16 at 09:26
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3I followed these steps, and when I selected the usb device, a popup said it needed to install Android 1.0 because that it the target OS. However, my phone and an HTC One M8 and I was able to debug on it last week. Something changed that is now causing Abdroid Studio to fail to see my phone as a viable debugging device. I tried it on another computer running Android Studio and it worked fine. So there must be some other setting or maybe even a driver someplace that is causing this. – James Oct 03 '16 at 13:53
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29I followed these steps, but when I try to run I get: "Error running app: No target device found" – Gabriel Apr 22 '17 at 22:13
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Funny coincidence, but I also am seeing the exact same problem on my HTC One M(8): used to be able to load the app onto it, but no longer. – FractalBob Mar 21 '18 at 19:05
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For those that tried this and thought it didn't work - are you looking in "Tools" -> "AVD Manager"? If so, you need to do the steps described above and then run the project as normal. You should see it on the "Select Deployment Target" under "Connected Devices" – Sludge Jan 16 '19 at 00:46
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5But why dont the selection dialog shows the devices? If I run `adb devices` in the command line, it is connected properly. – Csaba Toth Feb 04 '19 at 03:30
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On Android 11 the path to activate developer options is different: Info zu Tablet -> Softwareinformationen -> 7 x Buildnummer – Macilias Aug 12 '21 at 07:58
Some cables can not been used for developer mode or transfer file. A solution would be change your cable and don't waste time.
Edited
Some USB3 ports are causing issues too. Not sure if there is a way to check if the cable/usb works. But there is a way to detect the USB type USB2 or USB3? . If you are using USB3 could be a port issue too.

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9I had a cable that used to work for 10 months with Android Studio. It STILL works for charging but will no longer show as a 'connected device' in Android Studio! – kite_n_code May 23 '18 at 09:28
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1The garbage cable that came our multi-phone charging station was the problem. The official Samsung one that came with the phone works great. – Dana Robinson Oct 26 '18 at 09:12
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All was fine last week, but now cable from multi-usb port stopped working. I can use same cable plugged directly into Mac USB-C -> Digital AV adaptor to see device. – Yarn Jul 01 '19 at 22:11
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If you've tried everything else and still can't deploy, this is probably the issue. – Jonathan Oct 15 '19 at 20:10
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1This worked for me. Although `adb devices` shown that my device was still attached, Android Studio couldn't run on my phone until I changed the cable. – Manuel V. Battan Nov 21 '19 at 18:20
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1Not my cable, but my **USB3** port didn't seem to work for ADB, switched to a **USB2** and it was fine. – c z Nov 13 '20 at 10:44
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Is it possible to test the cable somehow? So that I can now if my cable is the problem. The cable the came with my new phone only has USB-C connectors in both ends, that I can't use with my PC's USB-A ports... – Moberg Jan 06 '21 at 18:37
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For me, it turned out that the device was not detected when connected to my laptop via a USB hub. When I connected the device directly to a USB port on the laptop, everything started working! – Vijayendra Vasu Mar 05 '21 at 05:05
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1Funny thing is yesterday the same cable was working just fine and today ... not so much... that's strange. – ekashking Oct 18 '21 at 22:20
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I had to killall adb
because somehow, Android Studio managed to crash and did not want to communicate with adb anymore. Thus, my device did not show up.
So quitting Android Studio, terminating all adb instances in Terminal and starting Android Studio again (should ask if it should enable debugging then) worked.

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3sometimes using activity window (mac) to kill (force quit) adb is enough (without quiting android studio). i force quit adb, run app again via android studio, and android studio can see the mobile phone/usb device. (thanks Sebastian Wramba) – tmr Mar 12 '15 at 06:33
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activity window (mac) to kill (force quit) adb solved it for me, thanks a lot – Manuel Mühlemann Mar 05 '22 at 20:49
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After spending some time I found the problem was to enable USB debugging option to on. Just find in your mobile Settings->Developer Option->USB debugging. Just enable it and it works. It might help someone!
In case you do not see the Developer Option then try to enable it first: Depending on your device and operating system, you may need to go to "Settings -> About Device or About Phone -> Software Information", then tap "Build number" seven times.

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On Android 5.1, Settings->Developer Option->USB debugging has a checkbox, but it is grayed out and cannot be selected. Further down there is an option to "Select debug app" which says "No debug application set". What is a good debug app to install and use? – Phil Goetz Sep 20 '17 at 21:20
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@PhilGoetz just check if "Developer options" is on or not. added image for your reference. – Jugal Panchal Sep 22 '17 at 17:59
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It works for me by following steps below:-
If you using Windows, the device won't show up because of driver issue.
Go to device manager (just search it using Start) and look for any devices showing an error. Many androids will show as an unknown USB device and comes with exclamation mark. Select that device and try to update the drivers for it. for update part follow the link:universal adb
But before that, you have to update your sdk manager and make sure Google USB Driver package is installed.
When done, the driver files are downloaded into the \extras\google\usb_driver\ directory. Hints: Search "android_winusb.inf" under Windows Start and Open File Location to get the directory mentioned.
Open up your device manager, navigate to your android device, right click on it and select Update Driver Software then select Browse driver software. Follow the file location path previously to install Google USB Driver.
Restart Android Studio and Developer Options in your android device and reconnect USB.
Cheers !

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Hey William, I tried your steps but got this problem: http://stackoverflow.com/questions/33884361/cant-find-device?noredirect=1#comment55533170_33884361 – Ruchir Baronia Nov 24 '15 at 03:02
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Another handy program to start recognizing the device is http://www.koushikdutta.com/post/universal-adb-driver – Lucia Jul 29 '16 at 22:05
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What do you do if it's not listed in Device Manager at all? It is charging. – Curtis Jun 09 '17 at 20:28
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His device shows up in ADB. Mine does too. We can adb shell and transfer files to and from it. That all works and is not related to the question. -- The question is why can't android studio see it. – BrainSlugs83 Jul 06 '19 at 21:28
In my case the following steps helped to resolve the issue:
1) Ensure the package "Google USB Driver" is installed in Android SDK Manager
2) Download "ADB Driver Installer 2.0" from here
3) Run the tool downloaded and connect your smartphone; in my case it showed that the driver had been installed incorrectly and suggested to fix it
After those steps my Android Studio instantly recognised the device! Both MTP and PTP started to work.
Tested for Samsung (Android 4.1.2) and Xiaomi MI4W (Android 4.4.4)

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My Nexus 5 phone did not have developer options in the settings menu. I had to do the following:
On Android 4.2 and newer, Developer options is hidden by default. To make it available, go to Settings > About phone and tap Build number seven times. Return to the previous screen to find Developer options.

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In my case
android studio suddenly stop seeing my device
I fix it by change USB option to Media device (MTP)
how to get USB option from storage USB Computer Connection
check Debugging from developer options
try re-run on device , it should work
issue
USB option was charge only
UPDATE ANSWER 26/7/2016
there many reasons like not enabling developer mode --> USB debugging(if you dont see developer option click 7 times at build number )
but I face another issue every thing was works just fine suddenly android studio cant see my device
to fix this issue you need to restart adb , from terminal
adb kill-server
adb start-server
or from ddms
in devices section --> click at small arrow down --> restart adb

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I plugged my phone in and it was detected fine (no need for device manager or anything like that).. but Android Studio wasn't seeing it.
I found it takes two requirements to be met
- PTP (not MTP)
- USB Debugging mode on
For PTP , go to settings..storage..usb connection..PTP (For MTP/PTP , maybe on my nexus it's there, but on my doogee I see it under 'developer options' .. then under networking , above input, it says "select usb configuration")
For USB debugging, settings..about..tap build about 7 times, then a new option appears for usb debugging and you can turn it on.
Added this is also relevant for USB debugging or MTP/PTP being moved https://android.stackexchange.com/questions/213059/where-is-the-mtp-and-ptp-option-in-android-9

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PTP worked for me where MTP didn't (with Android Studio 3.2). I also made sure i had up to date 'SDK tools' – stephendwolff Oct 02 '18 at 12:25
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3I am just extending the answer that if your don't found `PPT` option then select `MIDI` option. It's working for me. – Ninja Sep 11 '19 at 11:15
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@Ninja there's MTP, PTP, and there's MIDI. No PPT! https://gadgetguideonline.com/android/wp-content/uploads/sites/3/2016/04/USB_options_in_Android_Marshmallow_developer_options_USB_options.jpg MTP and PTP have been around for a while. And who is going to not find the PTP option if it is in the same menu as the (possibly more recent new) option you speak of MIDI ? – barlop Sep 20 '19 at 13:38
Try the following solutions (for Windows):
Go to your sdk tool installation path, and under \sdk\platform-tools folder and run this command:
adb devices
If your device it listed it should show something like this:
C:\android\sdk\platform-tools>adb devices
List of devices attached
081e96500591f039 device
If not, follow this:
Try these commands:
adb kill-server
adb start-server
Make sure your phone has Developer Options in Settings (if not, go to Settings, About phone (or device), click on Android Version multiple times until you see a message).
Make sure USB debugging on your phone is enabled (go to Developer Options in Settings and turn it on)
Make sure you have Select USB Configuration set to MTP (this is also in Developer Options).
Make sure you can see your files in your device in Windows Explorer when you connect via USB.
Make sure you have the driver for your device properly installed (most of the time, this happens when you first plug in your USB cable).
In Windows, right click on Computer, and go to Device Manager, check if you have Android Device right on the root folder and under it should be Android Composite ADB Interface. If you don't have this, you have to download the Google USB Driver. Get it here:
http://developer.android.com/sdk/win-usb.html
In Device Manager, find your device (should have yellow Exclamation point), right click, and update driver (open the folder with the driver you just downloaded)
If this doesn't work, try restarting Android Studio or plugging your device back in again.
Some cheap devices (some $30 tablets) don't provide the USB drivers to connect in Device Manager, so in this case you are out of luck.

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Exactly. Worked for me. I have Win10. Android SDK on Win10 is here: `C:\Users\me\AppData\Local\Android\sdk\platform-tools`. Drivers are here: `C:\Users\me\AppData\Local\Android\sdk\extras\google\usb_driver` – Green Jul 07 '16 at 05:22
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Running `adb devices` from shell fixed it for me, because it is able to detect and fix that **the ADB daemon was not running**. – Matthias Ronge Feb 25 '20 at 08:54
I have found that what works for me is:
CD
to your sdk platform-tools folderCheck if adb sees your device
./adb devices
If it displays 'List of devices attached' and a blank line below, then restart adb as follows:
./adb kill-server ./adb start-server
then re-run
./adb devices
and see if it picks up the device, eg as follows:List of devices attached
015d2bc285601c0a device
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@bhoomika do you have adb interface installed in device manager? or is it showing as a yellow exclamation mark under other devices? – barlop Apr 11 '20 at 14:44
In my case, enabling USB Debugging
in Developer Options
solved the problem. Make sure to grant required permissions upon reconnecting the phone.
Enabling Developer Options
Phone settings >> About Phone >> Software Information >> tap Build Number repeatedly.
Optional Steps
Sometimes, the phone is not detected even with USB Debugging
on. In this case, tap on Revoke USB debugging authorizations
in Developer options
. Grant the required permissions on reconnecting the phone.
If it's still not being detected, then toggle USB debugging
off and on then grant permissions upon phone reconnection.

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UPDATE 2020 Nov 27
One more reason is your cable which might be broken (only charging is available but not debugging). Hence, buy a new one! ^^
Known that "Can't connect a device with Android Studio" is such an annoying issue to newbies, but I'm kind of an old hand at Android for a quite long time. Most of the common methods have been tried:
- How to turn on developer mode.
- Forgot to enable USB debugging.
- Sometimes need to switch USB configuration to Transfer Files.
- Some subliminal guides on adb commands, which I've never tried, though.
- Try a new cable. ...
HOWEVER, what works for me is to REVOKE ACCESS again for the computer your device will connect to, namely:
- Go to Developer options.
- Revoke USB debugging authorization.
- Wait a bit for a dialogue to show up and ask your access consent.
- Bang, there you go, your device is listed in Android Studio.

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If your phone was working previously
Before you do anything complicated, this might be a simple problem. Just unplug and plug back in.
If there are additional issues
You also might want to check that your configuration is set up to launch to your phone.
run --> edit configurations
And make sure that you either default to the USB device or the chooser dialog if you are going to be switching between devices on your emulator as well.
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This is the correct answer to the question, since adb devices show the device. – MG Developer Jun 10 '18 at 21:10
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It's pretty insane that FIVE YEARS later, this bug still exists. Just had this exact problem – easytiger Aug 19 '19 at 17:36
Be sure that you have downloaded the correct API for the version you device is using. After updating your device's Android version or switching to a different device you may not have the correct API downloaded on Android Studio. To do this:
Check your devices Android OS version by going to Settings>About Phone>Android Version
Make sure you have the correct API installed in Android Studio in the SDK Manager

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The question had already a valid answer accepted by the question owner. – Eduardo Yáñez Parareda Apr 20 '15 at 08:39
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1Does not always help. I have a phone with Android 4.3, I installed it in SDK manager, the phone device still doesn't show up when running the app. – Eugene Gr. Philippov Aug 04 '15 at 18:32
Also try uncheck "Tools" - "Android" - "Enable ADB Integration".
This is work for me after update Windows to 10.

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Hey, I am having this issue: http://stackoverflow.com/questions/33884361/cant-find-device?noredirect=1#comment55533170_33884361 – Ruchir Baronia Nov 24 '15 at 03:10
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Great insight! Didn't know about this option. ADB was working for me, but Android Studio wasn't. FYI for visitors from the future, I'm on Linux. – David Kay Feb 08 '16 at 19:33
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This setting is now enabled by default and is now "Use libusb backend". This managed to uncheck itself in Android Studio. I re-enabled it following [these instructions](https://stackoverflow.com/questions/55372572/where-is-enable-adb-integration-option-in-android-studio-3-3). – StoriKnow May 09 '23 at 15:01
This helped me. I followed the instructions on the "Troubleshoot Device Connections" located on the AVD Manager Devices dropdown:
Make sure your Android phone is connected via USB to your computer
Go to your Android phone
Go to Settings > About phone > Software information on your phone
Tap Build number seven times
Developer option is now enabled in your phone
Go to Developer
Turn on or enable USB debugging
Allow computer access to phone
Now click on "Troubleshoot Device Connections"
Click Next until you reach "Restart ADB Server". Click on that and restart
Your device should now show on the AVD Manager dropdown list.

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The AVD Manager is for emulator images. It never shows hardware. This is true for any usage of the AVD Manager: Eclipse, Android Studio, etc.

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If you still have this problem (later than summer 2015) maybe you should:
- Go here: http://developer.android.com/sdk/win-usb.html#top
- Download the driver
- Reinstall it
I recently installed Windows 10 (not an upgrade, a clean installation) and I forgot the ADB USB driver

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1This worked for me after trying all other options. Thought my new install of Win 10 may have done it – raklos Aug 31 '15 at 11:03
Try changing mode of usb connection to midi devices. Thats what worked for me.

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When I faced this problem I was on Android Studio 3.1 version. I tried a lot of approach above, nothing worked for me ( Don't know why :/ ). Finally I tried something different by my own. My approach was:
Before going to bellow steps make sure
*Your "Google USB Driver" package is installed ("Tools" -> "SDK Manager" -> Check "Google USB Driver" -> "Apply" -> "Ok").
*If you are trying to access with emulator then check "Intel x86 Emulator Accelarator(HAXM installer)" is instaled. ("Tools" -> "SDK Manager" -> Check "Intel x86 Emulator Accelarator(HAXM installer)"" -> "Apply" -> "Ok")
- Goto Tools.
- Then goto SDK Manager.
- Open SDK tools.
- Uncheck "Android SDK Platform-Tools" (On my case it was checked).
- press apply then ok.
- Again goto Tools.
- Then goto SDK Manager.
- Open SDK tools.
- check "Android SDK Platform-Tools"
- Restart Android Studio :)
Hope this will help somebody like me.

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if your device version in 9 then
Go to SDK Tools and Update Sdk same Version and Intstall Google USB Driver

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Turn on USB debugging and connect the device to PC. Wait until the device gets detected by PC. While connected, turn off USB debugging and turn on it again.

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while doing all this don't forget to increase the sleep time, so that if the device prompts for authentication on the mobile device you know that the connection is succeeded.
Try 1:
- Install "microsoft universal c runtime".
- Download the file as per your OS (operating system.)
https://support.microsoft.com/en-in/help/2999226/update-for-universal-c-runtime-in-windows
Installing Google USB Driver from Developersdeveloper.android.com didn't work for me.
Try 2:
- search "androidmtk" and install driver installer. (restart pc) (check whether device is showing)
- Else search "adbdriver" and install driver installer. (restart pc) (check whether device is showing)
Try 3:
- Check out whether in Android studio's status bar (displayed at the very bottom of window), any message has been shown. Do the changes suggested in the message.
Try 4:
- Check whether device is shown after changing the connection type (mostly shown on dragging the top bar on home screen).
- i.e. "Charging only", "Transfer files", "Transfer photos PTP or MTP"
Try 5:
- Go to Android "Tools menu"->"SDK manager"->
- Below "Android SDK location" you will see 3 tabs.
- Out of it click on "SDK tools" and in the list find and tick-mark "Google USB drivers" and install the package.
- Restart the computer.

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I know it sounds crazy but i just reboot my phone while was connected and it appears

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If you use Samsung you can download and install the device driver from Samsung.
Note
You need to enable ADB mode(Like the eleventh comment)
You need to set Target in Android Studio to "Open Select Deployment Target" Dialog. To set Target : Run > Edit Configurations > Targets > Open Select Deployment Target Dialog

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I am using Android Studio 4.0, Android Studio said "Device was detected by ADB but not Android Studio". I tried re-enable "developer option" and "usb debug", re-plugin the usb, but no luck. I restart the Android Studio and it works.
Please try restart the Android Studio.
Hope it could save you some time.

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If your device was working with Android Studio before this issue, then restarting the device can solve the problem.
Make sure to turn on USB Debugging from Developer Options again after restarting.

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I have been troubleshotting same problem. I have tried all the tips in this topic in posts above me.
My situation was: - computer have seen my tablet - had debug usb options in developer mode on - adb in sdk was not seeing my device, killing & start didnt help
The problem was I had Samsung Galaxy drivers on my win8. When I went to devices manager, there was Lenovo A7600 Tablet with yellow marking. Settings -> actualize drivers -> choose from existing ones and i hooked up the Samsung drivers to this one.
It worked like charm.

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Thanks dude, It worked on my galaxy s7 edge. All I had to do was, just like u said, update through device manager my drivers manually. cheers. – Da Artagnan Jan 17 '17 at 23:02
If every configuration is sorted, what worked for me was to switch the device to be connected at PTP
and then back to MTP
.

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None of above answers solved my problem until I updated SDK platform-tools.This maybe one of the causes of this issue.

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I use the Android version of Nougat API 24, I solved a device problem not detected by replacing the USB cable.

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There are many reasons why Android Studio doesn't see mobile phone.
One of them is a problem with ADB Interface driver. You can check it in your Device Manager:
If you don't have ADB Interface driver, then use this guide to install it for Intel chipset: Installing the Android Debug Bridge (ADB) USB Driver on a Windows Computer.
If you have other, but not Intel, then try to search for the driver on manufacture's web-site.
For Xiaomi phones, turn off MIUI optimization in the very bottom of Developers mode menu.

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Check device driver if your device is Galaxy install Kise will search your driver

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As driver was unable to load, I was unable to connect to my device on windows 7. I followed the steps below:
- Download Android USB driver from Intel site
- Install the driver and reboot your system
- Connect your device and it worked

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Surprisingly enough, what worked for me on Debian Linux was ONLY:
adb kill-server
WITHOUT STARTING IT AGAIN!!!
The device appeared in the Android Studio as soon as I killed the server. The only reason I spotted this was that my terminal emulator window was transparent. :D

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For Samsung Galaxy s4 i resolved issue by instaling Kies software, after that everything works like a charm.

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I was facing the same issue. Turned out to be a faulty data cable. The device would start charging but would not show up in connected devices in Android Studio.
Trying another cable worked fine.
Try another cable first if you have been using your current one for a while.

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The idea is to fix USB driver on your computer. Start -> Device Manger -> Other devices. Right click on the USB device then Update Driver Software -> Browse my Computer ..-> Let me pick... -> Android device -> Next.

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So I am using Android Studio 3.1 and nothing above worked. The only thing that fixed the problem is enabling the checkbox of "Use libusb backend" See attached

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It's my first time running Android project today through Android Studio since its 2.x version, and I have the same problem. However, this is with the Flutter plugin. I have a workaround for people with similar setup.
My setup:
- macOS Mojave on MacBook with Type-C-to-USB dongle
- Android 6.0
- Android Studio 3.4.1: Android SDK 9.+, 6.0
- On Mac,
ANDROID_HOME
is defined,PATH
includes all the required tool paths
Observation
adb devices
gives the correct device info;flutter devices
shows correct device info with more details;- Android Studio's Connection Assistant shows
Android
as detected USB device; - Toolbar shows
<no devices>
; - AVD manager shows no such a device.
My workaround
- Open Terminal and
cd
to my project root; - Run
flutter run
and the app is correctly deployed and runs fine;
After that, my observation
- Toolbar shows my device name; I can then run everything from toolbar directly, including Hot Reload;
- USB config on my device automatically switches to PTP from the default MTP;
- AVD Manager still does not show my device. Shame!
But at least I'm no longer blocked.
Reference:

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Especially if you had a connection previously, if you are using some other application that used ADB connection to your phone - close that application. I have Total Commander that has plugin for ADB connection to mobile phone, and that solved my problem.

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This was it for me. Had `logkitty` running, as soon as I closed it Android Studio picked up my phone, thanks! – Mathieu M-Gosselin Jun 18 '20 at 13:42
For me, Macbook USB C Hub was the issue. I connected the phone directly to Mac USB C port and worked like charm! hope this help!

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Do the following steps to solve above issue.
- Right click on
Project
- select
"Create Run Configurations"
All tests
. (second option)- in
General
Tab -->Target device

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In my case, and I know this is dumb, but here's what I had to do.
I had tried all the solutions above and none worked. A good key to t-shooting is when adb devices
won't list the device, then you know you aren't cooking with gas yet.
Switching between USB modes won't have an effect until the device registers as a device over adb. You'll know when that happens because you'll get a prompt about an RSA key.
It was a relatively new install of Windows 7. Under USB in my phone's notification area, I switched to Install Driver and let it install my adb driver. In my case I was never going to get anything legit over the internet.
Once I saw that successfully install, I switched to PTP and it all just worked.

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Android Studio did not show my device (Samsung Galaxy Alpha) on Windows too until I downloaded and installed a Windows driver from Samsung Support page. I had to use the MTP connection mode on the device. I also confirmed authorizing the computer after I connected the device to it for the first time.

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I also had this problem. After looking though my edge 6 the enable usb debugging was greyed out and unable to be turned on. Quick google search showed it was the myKnox security program that was stopping this from being used. all you need to do is uninstall myKnox and you can then allow usb debugging. This solved my problem with the choose device dialog now showing my connected phone.

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Update last usb driver
- In Android Studio, click Tools > Android > SDK Manager.
- Click the SDK Tools tab.
- Select Google USB Driver package and click Install.
- Proceed to install the package. When done, the driver files are downloaded into the \extras\google\usb_driver\ directory.

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not sure if this question is still open. But I solved the issue by switching to a different usb cable. hopefully, this can save you a couple hours. lol

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In case anyone having problem with Samsung GT-I9060 I followed this answer on SO:
If you are on windows, many times it will not recognize the device fully and because of driver issues, the device won't show up.
- go to settings
- control panel
- hardware and sound
- device manager
And look for any devices showing an error. Many androids will show as an unknown USB device. Select that device and try to update the drivers for it.
I uninstalled the device, unplug the device and plug it again. This time Windows properly installed the driver. What a bummer.

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if your Windows cannot even install the driver, you should go to Device Manager and get the Device ID (right click on your device->Properties->Details->Hardware Ids (in Property). Install the Google USB drivers from Android Studio. Go to android_winusb.inf file (under ANDROID_SDK_DIR/extras/google/usb_driver/) and add your Device ID according to the file format. Run "adb devices" again and everything works fine.

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Please see http://visualgdb.com/KB/usbdebug-manual/ as this worked well for me. Had to download and install the USB drivers inside Android studio then actually install the drivers via device manager in windows 8.1

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I'm sure this might be useful for someone out there. In my case I am running Android Studio in a mac and also trying Visual Studio Xamarin. Having both of them opened at the same time was creating this conflict. So closing Visual was enough.

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Many answers already but I had just downloaded a simulator running O, and after that no device ever worked again. I deleted the emulator from AVD manager killed adb and then restarted Android studio. Moved the USB to another port and the device was there again.

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After updating to Android Studio 3.1, it stopped seeing my devices, but adb
saw them fine.
To resolve this, you need to start debugging with an emulator once and after that switch back to USB Device
in Run
-> Edit configurations...
-> Target
. This time it should work.
There are a lot of changes in Android Studio 3.1 vs its previous versions, so you have to kinda reset debug target in order to make your devices work.

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In my case There was multiple instance of adb got created. Unplug device from system. Open Task Monitor (Activity Monitor) and check for adb instances. Kill all adb processes. Try to connect device again. It might work.

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Since no-one else seems to have mentioned this, I had this problem on Windows 10 and fixed it:
- by ensuring that
ANDROID_HOME
was set in the system environments variables and then restarting Android Studio (you may have to log out and log in again / restart explorer.exe). - possibly unrelated, but on Windows 10 ensure that the telnet client via Start -> 'features'

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Env - AS 3.3.2 Linux 4 (ubuntu)
in AS used menu Tools > Create desktop entry
Desktop file content - ( note the path does NOT include Platform-tools )
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Name=Android Studio
Icon=jetbrains-studio.png
Path=/home/rob/android-studio
Exec=sh -c ' /home/rob/android-studio/bin/studio.sh'
StartupNotify=false
StartupWMClass=jetbrains-studio
OnlyShowIn=Unity;
X-UnityGenerated=true
Note that the location of SDK.platform-tools 'adb' below will not be found by desktop.PATH above:
$ which adb
/usr/local/src/android-sdk-linux/platform-tools/adb
On my setup, my symptom was that any terminal would list the device OK but the toolbar button in AS would never show a connected device... "no devices" is all i would ever see when my phone was connected via USB cable.
SOLUTION for me was adding the correct PATH near the top of the file:
${AS_HOME}/bin/studio.sh ...
PATH=$PATH:/usr/local/src/android-sdk-linux/platform-tools:/usr/local/src/android-sdk-linux/tools

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On Windows 7 , the only thing that worked for me is this. Go to Device Manager -> Under Android Phone -> Right Click and select 'enable'

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My setup
- Android Studio 3.5.3
- macOS 10.14.6
- Android 9 device is connected to Mac with a Belkin USB hub.
When running a Kotlin sample project from Google's Android github repo, there is no configuration, nor devices showing up in the UI.
Solution
File > Sync Project with Gradle Files
- But my internet connection needs a fix, so I had to go to
Preferences > System Settings > HTTP Proxy
to specify a working proxy. - Make sure
buildscript{ ext.kotlin_version }
runs a more recent version. I had to upgrade it from 1.2.xx to 1.3.xx. - Now the project appears to be ready to build (the default emulator Nexus config is now enabled). Rebuild the project for the emulator just to make sure.
- Then I had to unplug my device from the USB hub and connect it to Mac directly. Now Android Studio sees my device.
- Plug the device again into the USB hub. Now Android Studio sees my device with the hub, too.

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I had usb to usbc hub on my macbook pro which was blocking the device somehow, it worked when I connected it directly with the apple usbc to usb dongle.

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I have recently faced this issue with my new allotted PC by my company That is a Lenovo L450 (with Windows 10 installed) and I am not able to connect my phone (Redmi note3) to use for debugging purpose. My Android device is working fine with my other PC for debugging purpose.
I also tried commands related to the adb and I try to find all possible solutions. Then I go for YouTube help and this video is very useful: https://www.youtube.com/watch?v=7KdH4j7aAPM

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Thing which worked for me is is to uncheck the usb debug mode under your mobile setting developer option and allow again it will show the my device option

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You need to provide any limitations, assumptions or simplifications in your answer. See more details on how to answer at this link: https://stackoverflow.com/help/how-to-answer – Usama Abdulrehman Jun 15 '20 at 06:26
This is what worked for me:
- windows 10.
- Android Studio 4.1 .
- Samsung galaxy a50.
In Android Studio do this: File – settings – languages and frameworks – flutter . Then point to the spot in your computer where you flutter is stored at, like: C:\Desktop\Flutter for example.
Hope it helps. : D

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try the following command and reconnect your device, it will show up.
adb kill-server

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I have faced same problem in windows 8 and found the solution.
1) Right click on My Computer.
2) Click on manager.
3) Go to Device Manager.
4) Right click on device name (Which below on Other devices).
5) Click on Update Driver.
6) Click on next.
7) Click on Let me know... label.
Driver will be installed automatically.
Its works fine for me.

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I have done numerous ways of handling that issue. Here is the flavor of what you need to follow step by step. I hope it would help you out.
Step 1: Make sure your device is enabled for development.
Step 2: Before you plug your device to PC, make sure you select USB Connection method
.
Step 3: When you plug the phone in, you are given options for the USB Connection method, select Internet connection
. Make sure you have connected to the Internet.
Step 4: Run the app in the Android Studio
, it will ask you to authorize the device for development, and select YES.
Step 5: Run the application via Android Studio
and choose the device, not emulator, and BINGO! Welcome to Android development board.

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1With the Verizon LG prepaid, piece of crap, phone, you have to do this and after internet connection it will ask you to select ethernet or modem. Just select ethernet. Although, I read either will work. – Chase Roberts Dec 14 '15 at 22:24
-
Yes I have just bought that device to play with Android Studio and it gave me hard time to figure that out. – casillas Dec 14 '15 at 22:41