Playstation gives me error if i want to upgrade from 3.55 rogero to every firmware

[crafter]

Hey so i got a cechg04 with NAND flash (what a shit) and i had already updated to latest version 4.87 with hfw tomake webexploit. I already dumped my original nand flash and now i did perfrom an downgrade to 3.55 rogero downgrader. Now i am standing her with an error 800F157. I want to flash my original nandbackup but it DOESNT EXIST any NAND flasher. Does anyone can help me?

 

[crafter]

Sorry 8002F157

 

[Coro]

those downgrader pups actually are a lie. they tell the system that they are firmware version 9.99.

you need to enable qa flag then install your pup.