Android studio showing device as someAlphanumeric[null]

Question

I am using Redmi Note 5 Pro as a physical device to connect to the android studio. A night before everything was working fine and I was able to install apps from android studio to my physical device and view Logs with ease but Now apparently it's not working and showing the device as NULL. Please help. I tried the post method but it is not working for me.

PS: The only thing I did was update a system update MIUI 9.5.14.0 in between but I suppose that should not be the reason for this.

OS: Ubuntu 16.04 LTS

There are a number of solutions in the link, which ones did you try? — Morrison Chang, Jul 04 '18 at 04:32
you told that you have updated your MIUI so may be your device will support higher api version, try to upgrade your project api level and run it again. — Hemant Parmar, Jul 04 '18 at 04:36
@HemantParmar if the device is showing NULL while clicking the run button and in the logcat window as well. How will changing the api level make it work? I guess that's something runtime dependent.right? — Falcon, Jul 04 '18 at 04:42
well i am not much sure about it, but try this atleast once. what target version you set in project?? — Hemant Parmar, Jul 04 '18 at 04:44
@Falcon do you have another PC to check with using a updated `adb`? — Morrison Chang, Jul 04 '18 at 04:49
@MorrisonChang No. Currently, I am away from my usual workplace. I only have access to my machine right now. — Falcon, Jul 04 '18 at 04:51
@HemantParmar minSdkVersion = 15 targetSdkVersion = 26 compileSdkVersion = 26 — Falcon, Jul 04 '18 at 04:54
@MorrisonChang It worked. The solution was to kill the server. even though the device was visible in the list. I killed the adb server to start again. — Falcon, Jul 04 '18 at 04:58

score 8 · Accepted Answer · answered Jul 04 '18 at 05:08

As pointed out in the post

   ~/Android/Sdk/platform-tools> ./adb devices

Then restart the adb despite it shows device by

   ~/Android/Sdk/platform-tools$> ./adb kill-server

   ~/Android/Sdk/platform-tools$> sudo ./adb devices

This worked for me. Since it showed the device as against the answer in post prior to killing the adb server.

score 0 · Answer 2 · answered Jul 27 '18 at 09:25

0

A more permanent solution instead of restarting the adb service every time you can add a udev rule so that you can always access the device.

See: https://stackoverflow.com/a/51554826/5815054

answered Jul 27 '18 at 09:25

hb0

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Android studio showing device as someAlphanumeric[null]

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