adb devices - No device attached

Question

I need to see my Nexus 7 on the adb devices list. Although I enable the "" USB debugging "" on the device, but when I try to see the "" adb devices "", then no device is attached?

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You can mark it as a correct question, and close this question as a answered :) — Skizo-ozᴉʞS ツ, Mar 09 '15 at 08:30
For now you asked for a Nexus7 and we solved this problem, maybe you can create another question refering **Samsung Galaxy s3 mini** :) I'll search what's the problem with that device — Skizo-ozᴉʞS ツ, Mar 09 '15 at 08:34

score 1 · Accepted Answer · answered Mar 09 '15 at 08:29

First you have to download Google USB Driver
Connect your Android-powered device to your computer's USB port.
Right-click on Computer from your desktop or Windows Explorer, and select Manage.
Select Devices in the left pane.
Locate and expand Other device in the right pane.
Right-click the device name and select Update Driver Software. This will launch the Hardware Update Wizard.
Select Browse my computer for driver software and click Next. Click Browse and locate the USB driver folder. (The Google USB Driver is located in \extras\google\usb_driver.)
Click Next to install the driver.

score 0 · Answer 2 · answered Jan 21 '16 at 17:01

I know that you've already received right answer. But for those who meet the same error I advice to look for "Revoke USB debugging authorizations" in Developers options on your device. Sometimes it really helps! Especially if everything worked fine before in another OS.

score -1 · Answer 3 · answered Dec 11 '16 at 14:54

Case study (on my WXP SP3... yes I still use it..), phone AllView V2ViperE, Android version 5.1: If you continue to have no devices attached (although Android Composite ADB Interface is OK in Device Manager.. I mean without the yellow "!"), the root cause could be the adb server.. Workaround: download a new adb release (e.g: http://www.androidro.ro/descarca-si-instaleaza-driveri-adb-pentru-telefoanele-allview/).. I choose V1 Viper S.. unrar and run adb-setup-1.4.2.exe which will create the C:\adb\ directory:

C:\adb>dir
Directory of C:\adb
12/11/2016  03:23 PM    <DIR>          .
12/11/2016  03:23 PM    <DIR>          ..
10/19/2014  02:18 AM         1,009,664 adb.exe
10/19/2014  02:18 AM            96,256 AdbWinApi.dll
10/19/2014  02:18 AM            60,928 AdbWinUsbApi.dll
10/19/2014  02:18 AM           196,608 fastboot.exe
               4 File(s)      1,363,456 bytes
               2 Dir(s)   6,116,716,544 bytes free
C:\adb>

Now just run:

C:\adb>.\adb devices -l
adb server is out of date.  killing...
* daemon started successfully *
List of devices attached
DQBMWGSC9HT8CQ7D       unauthorized
//V. in this stage allow USB debugging on the phone, then just run again:
C:\adb>.\adb devices -l
List of devices attached
DQBMWGSC9HT8CQ7D       device product:V2_Viper_E model:V2_Viper_E device:V2_Viper_E
C:\adb>.\adb -d shell
shell@V2_Viper_E:/ $

Eclipse/LogCat also come alive.. Voila.. Vive la Roumanie.. Now I'm struggling with ndk debugging..

adb devices - No device attached

3 Answers3