PSP: exploit for 1.00 - 2.7 psp!

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Originally Posted by crait

ok, now... The reason it will not work on 2.71 is because i cannot change the update file's SFO file to say something like "update to 2.8"
if you dont know what that is, it basically tells the psp, what the eboot is... ex. title, regoin, and parental level.
if i do change it the psp will load the file, but it would ultimately be corrupted, and nothing, not even the exploit will run....
but is there another way? well the psp update file contains code that tells the psp to check to see if the eboot is consistant every nth second... this also makes sure the memory card was not taken out. this might be changed to were it says to check the eboot every 500,000,000 seconds. lol. but i would have to look into this, and it might be hard to change, but if i do change it, it should work, as i said though i have to look into it

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This probably wont work. For starters, once the update is tampered with, the signature and encryption is destroyed, thus being invalid. The check for the eboot every nth second, seems to me, to be an extra precaution Sony added in after they found out about the Swaploit.

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next, there are many approaches im going to have on running an eboot, one is changing the update file itself, another one is changing another eboot to make the psp believe its a UMD.... lol because after I press the O button, and the psp restarts, the psp loads the UMD, but says to me i need to update the software, even though i have the parental level as high as i can, and it doesnt ask for the password hmmmm lol by the way the game is sims 2, so it doesnt work on a 1.5 psp, except with a ziso loader and stuff like that
i have other ideas to get around it too, some im sure will work, others im not too certain with

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Uh... When the PSP starts, it automatically boots any UMD in the drive... You should have known this if you are wholeheartedly trying to exploit the system. Since you don't know this, I am beginning to doubt that you know what you are doing.

As well, making an eboot think its a UMD would require mounting the eboot as the UMD drive filesystem, which, wouldn't you know, requires unsigned code to run, thus making this exploit useless from the get-go.(since it already requires an exploit to work...)

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Originally Posted by dalejrrocks

that's why I had doubts in this. You couldn't change the eboot without it being corrupted and the PSP would see that just like you said.

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i meant you cannot change the update's SFO file, because the psp checks for consistancy every nth second
i can still continue to change the file, just not that part, or the parts that conflict with the security checks

and to F9zDark, if you would have watched the movies i provided, and not have jumped to conclusions, you would have noticed that i changed the update file, and successfully loaded it onto one of my psp's, yet on another psp i have, it didn't work! so i did change the file, and i still had the security signiture in its original state! so nannanannana poopoo poo lol
and as i said, it starting up a pbp as though it were to be a umd is just an idea. just an idea.

ok, this should not brick your psp, and i would love beta testers!
and also pre alpha testers, like to help me figure out what model, or mother board is required for this psp hack

aim: thecrait

does it matter what fw u have as long as it's anything under 2.71 or does it matter on the motherboard only?

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Originally Posted by Blazed247

does it matter what fw u have as long as it's anything under 2.71 or does it matter on the motherboard only?

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um.. right now, i think yes. actually
because anything can update to a 2.71 thats under a 2.71...
also the motherboard, i think, has to be the correct one to pull up the wrong error

Hmmm unfort. I have my doubts because the minute you touch the eboot the SONY signature is destroyed also I have seen someone try this before and then they said it was impossible for a certain reason I'll get back to you on that one ;). Well I wish you the best of lcuk though because anybody that is trying to help the scene is indeed great =D

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Originally Posted by pkmaximum

Hmmm unfort. I have my doubts because the minute you touch the eboot the SONY signature is destroyed also I have seen someone try this before and then they said it was impossible for a certain reason I'll get back to you on that one ;). Well I wish you the best of lcuk though because anybody that is trying to help the scene is indeed great =D

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OMG!

FOR THE LAST TIME PPL
WATCH THE MOVIES
IT SHOWS YOU THAT I HAVE INDEED CHANGED THE UPDATE FILE, YET IT STILL ALLOWS ME TO LOAD THE UPDATE! ONLY CERTAIN MOTHERBOARDS BLOCK THE EDITED FILE!

grrr lol sry bout the caps but ppl, cmon i want you to watch both movies, and thoroly read the first post, you might want to read all the other posts so information does not have to be repeated
word up yo

It's not gonna work because the EBOOTS WILL BECOME CORRUPTED! just like everyone else is saying.

grrr
ok
watch the second movie i provided in the original post!
it shows that the update file is curropt on one psp, whilst on the other psp, its not!
just, just watch the movie, as ive been trying to make people do!

crait I just want you to know me and a few other people are rooting for you. It's not just that we got 2.71+........:D . Damn it!. Seriously though people like you give us all hope so my fingers are crossed. Guys let's try being abit more optermistic. If we all had understanding at the same level then by all means critique but while we all have talents we don't all think the same and it's apparent he already answered your doubts, just give him time to prove his method. What will be will be. The End. :p

I watched both of your vids, and I gotta say you're defenately up to something here, bro...Good luck with this. BTW, where can I get that awesome gameboot with the slashing and blood? It kicks major butt...is it from a game?