Here are the tips of how to proceed a forced update.
Vivid 11 Version Make Sure your unit is PX6 Andorid 11
telenav_vivid_rk3399_11.0_ota(20231104)
https://www.dropbox.com/scl/fi/srgrpik0i2e09d5hfeng0/update.zip?rlkey=ap62mqz8cz4thb3q9ju8h9zao&dl=0
Video Tutorial:
Here are some tips to help you get the work done:
1.Please unplug all the wires and then reconnect the head unit.
2.Please download the document via your computer/laptop, then use the WinZip application to unzip the file.
3.Please make sure to format the USB drive(FAT32 Format)/SD card before copying the update file to it.
4.Please ONLY put Update.zip file in the root directory of the USB drive/SD card,and then insert the USB drive into the USB cable.
5. Find a pin, press and hold the RST button for 15 seconds to see if you can enter the factory setup page, if you can, select system updated ;