Disconnecting the battery or pull the radio back-up fuse are sound options for performing a deeper reset to the HU, but try the "lighter" reset option as follows:
- Turn the radio ON.
- Unplug anything plugged into either USB port in the center console ports.
- Press + hold down the POWER button until a RESET tel-op appears which will give the option to RESET, YES or NO?
- Select YES and wait for the unit to reboot.
- Now see if you need to try the "BRC" (Battery Cable Reset).