Also Megavolt85 some of your BIOS files are duplicates with just different names: thank you, i'm update Maybe an error in the software of megavolt85. no, my software don't have link to psxdev :D you make dump of your PIO CART, is not BIOS how you write BIOS? disconnect CE from original BIOS and con...

Xrider wrote: ↑August 6th, 2019, 10:00 pm I confirm the ID of the SST39VF040 it's "BF D7"

test this