I got the latest firmware for the 8.9 Road Top from them, so whoever has that can upgrade to the latest
lutuo-8.9-2025.04.10-v3.0.6:
System software upgrade method:
Use an 8GB USB flash drive, format it as FAT32
1. Unzip the file, copy the software inside to a USB flash drive, and then connect it to the provided USB cable interface.
2. Turn on the car and go to Linux screen settings → System → Software upgrade → Select system upgrade (wait for the USB flash drive to be recognized and confirm √ upgrade).
3. An update progress bar will pop up, and the screen will automatically restart after the upgrade is completed in about 2-3 minutes.