Alps-mp-o1.mp5 Update--------: [better]
The string Alps-mp-o1.mp5 typically refers to the platform version used by the device. To properly update this unit, you must match the specific System Version or App Version found in your device settings. Common Update Steps for "Alps" Units
Once you install the .mp5 update, you cannot revert to any .mp3 or earlier .mp4 variants. The optical transceiver firmware is permanently upgraded. Alps-mp-o1.mp5 Update--------
highlight several common issues following updates or factory resets: Android auto no sound - how to fix? The string Alps-mp-o1