I\'m new to Android development, and am attempting to run a test application on my actual device. I followed the instructions at http://developer.android.com/guide/developin
Have you tried killing the adb process and starting it back up again? That's worked for me before.
sometimes killing and restarting adb fix this:
in your console:
adb kill-server
adb start-server
(Don't forget to add the sdk's platform-tools
folder in your PATH
)
I followed the steps suggested by Neil Han, but adb still could not recognize my tablet (cheap chinese device - Freelander PD10).
what solved this problem for me was restarting adb as superuser:
adb kill-server
sudo adb start-server
Kal I had the same situation some months ago, my device was recognized for my computer but adb doesn't recognize my device is connected, I had to update from the device manager.... hope it helps you!
adb driver isntalling error
When adb stops recognizing my device on Windows, it usually gets fixed with the "adb kill-server / start-server" trick. But this time nothing seemed to get it back running, tried every answer on this thread multiple times (restarting, reconnecting, reinstalling, everything)... Then I tried connecting the device to another USB port and everything worked again.
You may try to install the USB drivers for the devices from official Android page, those are: