AM5T display reverse camera patch

[pd3jcw]

Hello,

I want to flash a AM5T-18B955-CH display (MFD4) with the reverse camera patch, this car has a SPRM; 8M5T-19C112-BT and a ACM; BM5T-18C815-RF. So no sync 1 system, what patch do i need to flash;
- Full reprogramming
- patch C520E to C346 MCU flash + calibration
- patch C520E MCU flash + calibration

Thanks !