Format a USB stick (16GB or smaller is best) to FAT32 . Copy the update file (usually named ksw-q-userdebug_os_vX.X.X-ota.zip ) to the root directory. Initiate Update: Plug the USB into the head unit's USB port.
Refers to Ksw-Q , the base software architecture for these units. kswquserdebug os update top
Are you experiencing a (like ZLink disconnects)? How to enable Car stereo Developer option Format a USB stick (16GB or smaller is best) to FAT32