Updates often fix lag and improve the responsiveness of the touch interface.
If the stereo does not automatically detect the file, you may need to create a specific path on the USB drive: mnt > media_rw > udisk > update.zip The Update Process: Update-hc.zip
Connect the USB drive to the head unit while the car is in mode. Navigate to Settings > System Settings > System Update . Select "Start Update" or "Local Update". Updates often fix lag and improve the responsiveness
Core files that replace or patch parts of the existing Android OS. Select "Start Update" or "Local Update"
Instructions that tell the device's recovery system exactly how to apply the new files.
Rename the file exactly to update.zip if required by your device's detection system.
Some updates upgrade the system from older Android versions (e.g., Android 11 to Android 13 ). Risk Warning How to Update Your Android Head Unit | Firmware/Build