ADB error: insufficient permissions for device: verify udev rules
This can be resolved by enabling ADB transfer in your USB Preferences.

Plug the phone into the USB
Drag the phone's top menu (the drawer) down
Click the notification that says &quot;Android System: Charging this device via USB. Tap for more options.&quot;
Click &quot;File Transfer&quot; (newer devices) or &quot;MTP&quot; (older devices)

Note, if successful you may get a prompt asking you to accept the keys of the computer issuing the adb shell command.