PS2 How to program a new ps2 bios chip

[Fallen777]

Hey can any one tell me how to program a new ps2 bios chip for replacement as i have been seeing a lot having black screen and bios courrption in both fat and slims

 

[sp193]

How do you know that the chip was ruined?
It would imply that ROM chips were ruined. If they were programmable, then I don't see why we needed to have such temporary methods to run homebrew.

 

[Dariush Aghaee]

How do you know that the chip was ruined?
It would imply that ROM chips were ruined. If they were programmable, then I don't see why we needed to have such temporary methods to run homebrew.

Before mod chips come someone has replaced the bios chip with a M29W320D (T/B) memory chip programed a modified bios. Is there any information about that?

 

[Fallen777]

Before mod chips come someone has replaced the bios chip with a M29W320D (T/B) memory chip programed a modified bios. Is there any information about that?

sadly that is the end of that no more elaboration as it was pre-modchip era
there's a thread over at ps2home for direct booting in modchip custom bios I haven't site just bans my ISP.

How do you know that the chip was ruined?
It would imply that ROM chips were ruined. If they were programmable, then I don't see why we needed to have such temporary methods to run homebrew.

literally all videos all youtube show replacing bios to fix it after measuring some '3-4 pins on bios for pulsating voltage