Download the update.zip or relevant firmware folder to a formatted . Plug the USB into the head unit. Go to Settings > System > System Upgrade (or Local Update ).
Updates the built-in APKs needed for modern smartphone integration. sp7731e+1h10+native+firmware+link
The "1H10" designation typically refers to the specific board configuration or system version of the head unit. Because many of these devices are produced by various manufacturers under different brands, verifying your current version before attempting an update is the most important step. Spreadtrum/Unisoc SP7731E. Download the update