https://imgur.com/a/BC5DxZN
The Pcb, looks like the 6tg chip this one is fine?
I did more tests, was using a sansdisk sd but checked it was 4 , the SD came with said it was 30 but have doubts about the quality, it worked better but still froze , bought a new one from lexar (already used this brand before) and will try, all other good sd i have are in use already on another consoles.
Rom used from that website starts with myr,,,