Android: Fix Unauthorized Devices on macOS

  1. Disconnect USB connection between Mac/MacBook and Android device
  2. On the device: Revoke USB debugging authorization in Settings -> Developer Options
  3. cd /Users/<user_name>/Library/Android/sdk/platform-tools
  4. ./adb kill-server
  5. cd ~/.android/
  6. rm -rf adbkey
  7.  Reconnect device
  8. Re-authorize computer to device
  9. cd /Users/<user_name>/Library/Android/sdk/platform-tools
  10. check with ./adb devices that device is authorized