Android Device not recognized by adb

My Android device isn’t recognized by eclipse nor adb anymore. My OS is Windows 7 64-bit, and I’m using a Nexus 4 with Stock Android 4.4.2. Here are some details on the problem: Yesterday I could run Android Projects from eclipse on my device with no problems. The only thing that I did on eclipse, … Read more

adb devices return error: protocol fault (no status)

I had the same issue and found the problem: Android Studio. Open the Android Studio menu Tools -> Android and uncheck Enable ADB integration. adb devices should work (you might need adb kill-server first). Then you can re-enable ADB integration in Studio.

Android Studio – ADB Error – “…device unauthorized. Please check the confirmation dialog on your device.”

you have missed the Fingerprint Certificate Authorization dialog in your phone when you connected it, try to change the USB mode to Media, or another different than the one you have in and then reconnect your device, or go to Developer Options -> Revoke USB Debugging and reconnect, watch for the dialog and click on … Read more

USB Debugging option greyed out

Finally figured out the solution to the problem, with the help of this post. When you connect your phone to your PC, using the USB cable, select the mode as PC Software. Now you should be able to enable USB Debugging.