📄 "LOCKED" appears on the display.
📄 Poor radio reception.
📄 Speaker not working
📄 No GPS data
📄 No sound from the speakers
📄 Clicking/static when radio is switched off/is off or is in "mute" mode
📄 No satellite sound in left or right-hand channel
📄 Poor/no satellite radio reception
📄 Voice control not working.