ADB – ADB Device List Doesn’t Show Phone


I've recently installed adb and fastboot:

apt-get install android-tools-adb android-tools-fastboot

After the installation finished, I connected my device and ran the following command:

$ adb devices
List of devices attached

I've enabled debugging in the phone settings.

I think am doing it wrong– I don't know. Please explain me the correct process.

Using Ubuntu 16.01. Device: Yu Yuphoria

Update edit:

After all the frustrating attempts It's still not detected in adb.
However in fastboot mode, adding the vendor id command for my device, fastboot -i 0x2a96 devices as found mentioned here works

fastboot -i 0x2a96 devices


7dd91912        fastboot

Other commands in fastboot mode, as instructed in the same page mentioned above, works too when vendor id command option was added.

Best Answer

Finally got the device detected in adb under adb devices command by restarting adb server with root privilege as mentioned here in the Troubleshooting adb section.

sudo adb kill-server
sudo adb start-server

After this adb devices returned

7dd91912      unauthorized

with a prompt on device for RSA authorize. After authorizing

adb devices now returns

72291912      device
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