2.80 must have kernal!

[benh]

yep tried the easy downgrader full and lite none of them worked

[razorak]

i think the security on the update EBOOT is broken when you extract the files

that is correct, a program inbuilt in the psp searches for that security code every period of time i heard. moreover, if u try to edit sony's eboot files, if you careful enough you would notice that after editing the file, the param.sfo file actually suffers a loss in memory. the only way to get pass it is illegal, to get a copy of this code which is more known as Sony's Encryption code which appears to be used to seal their eboot files and then with an encrypter, encrypt the eboots with it. it is supposed that another team of coders have done it before but it's illegal and the homebrew scene wants to stay legal.

if a program can be made to patch that search process for that security file or encryption code etc etc, like redirecting to a file that has them, we shud be able to run homebrew off the xmb but then again this idea of mine may not work nor is it an easy task.

[benh]

someone makes a program like x-flash that changes things in the nand memory, you could make it so that u know like u can put spoof fw versions, you could make it so that it puts the firmware as fw 1.00 as a spoof and the psp will think its as 1.00, so then you just run the 1.5 firmware update and it will update to 1.50

you could use the tiff exploit to run the x-flash type program plus it would be the safest way to downgrade because you would be running an official update

[assesoffire]

thats the way the mph 2.0 downgrader worked, but these recent ones just copy the older firmware file by file

[razorak]

that has been tried while trying to downgrade 2.0 psps if i am not mistaken

oops..didn't see the post that's now above mine..lol

at any rate many theories of a downgrader has been though of before so there's barely any stones left unturned but still, we mustn't lose hope