: Rogue automated OTA patches or bad flashes can cause the digitizer to invert or fail altogether.
If connectivity fails, try clearing the app cache on your phone and the head unit, and verify that the Bluetooth and Wi-Fi connections are secure.
If you are looking at this firmware string because you want to update it or fix a bug, proceed with extreme caution! The online forums (like 4PDA or XDA Developers) are full of stories of owners bricking their radios.
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