Ac8257 Firmware Work [patched] -

: Some firmware updates can enhance the performance of a device or fix bugs that hinder its optimal operation.

Your radio works, but your steering wheel buttons don't. You need the MCU file: Ac8257 Firmware WORK

: The "AC" in Ac8257 might suggest a focus on alternating current (AC) power management, potentially indicating features related to managing power supply, optimizing energy consumption, or ensuring safe charging practices. : Some firmware updates can enhance the performance

Once you have the correct update package (usually from the manufacturer's official blog or support site like Joying's Firmware Blog ), follow these steps: optimizing energy consumption