Turbo Quattro

100% but they went to great efforts in security when compared to a standard eprom

Convert MIB2 High (Harman) to MIB2.5
for 9.2” Display
Do at your own risk! You can brick the unit!
Note: it is possible that something is missing in this manual or different
for other firmware versions!

Setup unit on bench - Connect to RCC via UART
• Make Full (Advanced) Backup with M.I.B. to SD ...

I took apart multiple vc clusters, swapped the nvidia boards, corrupted the eprom checksum, investigated the MCU Secure Hardware Extension (SHE) Chip MB9DF125E which fujitsu says is impossible to modify as it has multiple layers of security... see link https://www.electronicspecifier.com/products ...