PSP: exploit for 1.00 - 2.7 psp!

[dalejrrocks]

good luck with it. idk if you get anything out of it, but good luck. btw, how are you going to make the PSP execute your code after it restarts?

[SnoopKatt]

Hmm, this could be something big...

[jwilds73]

good luck with it. idk if you get anything out of it, but good luck. btw, how are you going to make the PSP execute your code after it restarts?

Only "O" restarts the PSP "X" has no function he is going to try and assign a function to "X" and get it to do something such as run an eboot etc.

[BelmontSlayer]

Very, interesting idea...I've never programmed for the PSP (Only C++ & VB on my PC), however from what I can tell this could work. How do you plan on editing the eboot though? I suppose you could modify it in a hex editor since its already compiled. Good luck, and PM me if you need any help.

[crait]

ok everyone, im going to be out of town, doing something fun... but leave a reply, and i will try to answer all of the questions you have! : )

next, thanks all you peeps applauding me! yay

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

also i dont know what board the psp needs for this, and my psp i use it on was purchased from someone else, then downgraded from version 2.6 to 1.5, therefore, i dont know what the original version of the psp was

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

last thanks indian cheese, talk to me on aim later when i get home, my sn is 'thecrait'

[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.

[benh]

I would like to become a beta tester but will only do it if u can garuntee me that i will not brick my psp

[dalejrrocks]

I would like to become a beta tester but will only do it if u can garuntee me that i will not brick my psp

What are you planning on beta testing if this doesn't work? Read the previous posts.

[BL4Z3D247]

it would be cool if he got this to work though, good luck crait

[F9zDark]

naw man, this doesnt crash it
the update tells the psp that it has two options
X: Enter O: Cancel
but X: does nothing, and O: restarts

so i'm going to open the file, and make the X button actually do something, like open an emenu, or something similar


and i know that the psp model is like psp1001

i mean model as in TA-082

Does the corrupt update actually change any code, because error messages are coded into the PSP. If that error message comes up, with that data, it may have been an error from alpha or beta testing the PSP that was accidentally left in.

I highly doubt you can apply code to run during the error. The fact that X doesn't work, is that when any error that halts the system is come across, O is the only functioning button, for Cancel.

Perhaps the error that comes up is one that persisted through out the entire development of the PSP and as such, remained a 'bug error'.

I don't mean to rain on your parade or anything, but I just cannot see it as being anything more than that. The sheer fact that error codes and messages are stored in flash and not the programs or games that are run on the PSP proves that it will do nothing.