Dark epsilon está baneado por "clon para saltarse baneo"
"The point is to trick the PSP in RAM, then get it to flash the IPL and firmware all in one, without rebooting. That way, hopefully, your IPL and firmware are in step again when it next comes to check.
Of course, I know next to nothing about the IPL checks, and some rumours I've heard suggest that the 2.5+ hardware might well have unflashable checks for this stuff.
So it's all conjecture at this point, until someone tries it."
esto acaba de decir fanjita, la solucion es flashear el ipl y el firm a la vez sin reiniciar la psp (por eso dice dark alex que es mas peligroso)
y dice que posiblemente las 2.5 de fabrica el hard no permta flashearlas.
alohl669 esto es un work in progress por lo tanto los resumenes se harán cuando todo yege a buen puerto ahora mismo es todo investigacion rumores y nervios.
y mas info esta vez de mathieulh "Hopefuly I know about it
The 2.50 IPL checks if index.dat version = 2.50 if not it refuses to start the firmware.
Beside 2.50 index.dat uses another encryption, thus you cannot just replace it by 1.00 index.dat or by a decrypted index.dat version (a version.txt renamed as index.dat)
you can be sure that these protections also exist in newer IPLs (which we can't decrypt at this time)
There are other limitations in 2.50 IPL especially regarding module modes."
mas info pues, el ipl viene encriptado en las versiones mas nuevas, por lo tanto es harto dificil el downgrade para las psp mas nuevas