Fix unauthorized message with adb devices

Case: You connect your Android phone to your computer, run the command 'adb devices' and your device is unauthorized. Even if you authorized the device.

Unauthorized message in adb

Requisites: Android phone, USB cable, computer with Windows and adb installed.

Steps:
  • Make sure the phone is not connected to the computer. 
  • Remove the previous authorizations given into the phone.
Remove previous authorizations
  • Kill the adb server.
Kill adb server
  • Remove the key files.
Remove key files
  • Connect the phone to the computer with the USB cable.
  • Run the command 'adb devices'.
  • In the phone, accept to give the authorization.

Results: When you run the command 'adb devices', it will show your devices with the status 'device' instead of 'unauthorized'.

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