Fix: The new firmware may have assigned a different default audio amplifier path. Go into Factory Settings and toggle the type or change the Car Audio Type settings until sound returns.

Before downloading anything, you must know what is currently running on your unit.

Reformat your flash drive specifically to . Double check that the file is in the root index and hasn't been unzipped incorrectly. Unit is stuck on boot logo loop Partition layout mismatch or system brick.