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Updating firmware

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New member
May 1, 2021
Hi have installed an android head supposedly at android 9.1. I'd like to update the firmware as many things are not working on this unit, i.e., wireless, phone linking, canbus, etc.

This unit has no name brand on it. System settings shows
MCU: 3.5 (82277L),
CPU: A7 1.3 GHz x 4,
android os: Android 9.1
Model: YT9216BJ

Does anyone have any idea on how to get the correct firmware update for this unit. Thanks, any help would be appreciated.