Go to Factory Settings → Backup & Reset → Backup to USB. Save your current MCU and Radio settings.
If you experience steering wheel controls or CAN bus issues after the Android update, update the MCU separately: yt9213aj firmware update better
power off the unit or remove the USB until you see a prompt saying "Please remove update device". Pro Tips for a Better Update Experience Folder Fix Go to Factory Settings → Backup & Reset → Backup to USB