iv been working on way to try to run homebrew on FW2.71 and i final made a brake trough!
i have so far been abile to load the game to a certian point then it says game cannot be loaded.
ur probley wondering how i was abile to start to run a homebrew on a 2.71 psp. well i just extraced the PARAM.SFO from the psp LocoRoco™ demo. the PARAM.SFO contains the encryption key to alow EBOOT.PBP like LocoRoco to run on FW2.71. the only problem with this is that the PARAM.SFO needs to be tweacked a little bit to be abile to run other homebrew. if u or someone u konw can tweack this file then we should be abile to run homebrew!!
this homebrew concept i think only loads on psp FW2.71 only but not shure
[size=4][color=#CC0000]
PARAM.SFO download moved here

FW 2.71 doom load working download moved here
offical progress on 2.7+ download .txt document = http://www.f-forge.com?d=eSZzofGUiQNbE8F2Omsr

also ppl plz dont be stealing my ideas without asking or giving credit

so, if someone can fix that, will we be able to downgrade?

that is so smart dood! wow i would have never thought of that...i will do some searching for some ideas on how to hack sfo files.

keep up the great work!

EDIT::

i simply opened the .sfo file in a text editor and it came up with this::




it looks encrypted...but it looks like we can change the "LocoRoco Downloadable Demo" to something else. thats a start...

was this a help at all??

ANOTHER BREAKTHROUGH!

anyone know how to read binary?? I just opened up the .sfo file in a binary editing program (hex edit) and it came up with this!




its not that long so it should be pretty easy to figure out.

i dont thing it is 128 bit encryption as they say... more like 2 bit encryption. anyways hope this helps!

the .sfo contains 2 parts it has the "imposible to decrypt" encyrption key which is needed to run the app on fw 2.71 and the set of "instructions" that tells the how to start the homebrew or inthe case of this file to start locoRoco

i have made another brake through in FW2.71 but not in homebrew but in a donwgrader via psp FW update!!!

how it works

buy using the PARAM.SFO from FW 2.71 and puting it in the place of FW 1.5's .SFO file , changing it to FW 2.72 and and editing it a little bitand combinding it with the FW 1.5's DATA.psp and DATA.PSAR. it loads to the point of FW verson and start

view the download file moved here

Ok

Wow, good work there h3r3t1c!
Now, what's the chance of bricking my PSP by doing this!?

if i can get the downgrader via psp updater to work right then there is a slim chance that ur psp will brick

Nothing a n00b can do to help?

have you tried sending this info to someone like fanjita to see if they can help

i have tryed to contact some ppl like that but there realy hard to get a hold of
if anyone could get ahold of anyone like fanjita for me that would be great
my email is grimriper20002000@yahoo.com

I sent a message on to Fanjita for you. I included your email address so he can reach you. I hope this helps. ^^;

this is a pretty big breakthrough man

here is the offical update on all the progress so far
http://www.f-forge.com?d=eSZzofGUiQNbE8F2Omsr

nice progress

bad news every1!!!!!!!!!!!!! my usb cable gave out on me and now i cant connect my psp to my computer until i get a new one unless i get some ppl to test out the eboots and i make them

ill help ive got a 2.71 but im getting 2 memory sticks tomorrow so i can only test the one eboot at a time

in your text document progress, what do you mean by a modified pbp file? do you mean the one that you've uploaded or do you mean the .sfo file and we're supposed to make an eboot out of that with pbp unpacker? very confused because i tried booting your eboot file and turning off the psp like you said in your text document, swapped memory sticks with one that has update 1.5 on it, and it still says the update is corrupted no matter what i do. how do i get past this screen???????

id be willing to help, just let me know what you need me to do and ill help.

ok so which txt document did u resd the one that came with i or the one that tells u about the progress?

sorry to burst ur bubble h3r3t1c but this WON'T work im almost 110% sure it won't because if u edit the eboot file (which u are editting because u are taking out .sfo and putting in another one). u can edit the .sfo file in a program called pbp unpacker and this won't work u will get the loading skreen and what-now but it won't load up correctly because it will exit once the psp figures out that the eboot isn't encrypted with sony's code....... so in the meantime u will have to either find a glitch/bug/exploit in the psp (and the gta one won't work n e more) to at least run unsigned code in usermode (homebrew/downgrader since a downgrader is unsigned as well as every other thing sony doesn't make)

ur right that y i extracted the encrytion key from the LocoRoco PARAM.SFO

but that key don't work n e more because u extracted it............

it will becaus i exracted it when it was encrypted. it still has to be decrypted. thats gonna be a pain it the A$$

no dude when u extracted it it became decrypted and then when u put it back onto ur memory stick its not encrypted with sony's code so this won't work!!!!!!!!!!!!!

one more thing y did you make so many threads about this??

calm the frig down!!! u frigging jealous idiot...u couldnt get this far ever in ur life frigging loser..

WTF r u even reading what im typing!! extracing it is way different than it being decrypted!!!!
it down not magicly become decrypted when it is extraceted. it has to be decrypted by a program that decrypts encrypted things like the encryption on this

omg u are obviously the most retarted noob ever and when u fucin extract something form the eboot like the the .sfo file it will not have sony's encryption i dont' knw how to prove this to u but ur just a dumbass fuckin' stupid ass noob this will never work and in a week or 2 i will be the one to tell u i told u so if u even come back to this forum dumbass.

one more thing y didn't u try to do this with a homebrew app first dumbass then when u get that far as running unsigned eboots then u will some how come up with a downgrader

and i know how ur going to go on and on, on how i'm the noob but guess what buddy u are the one who is a noob and hasn't read about the attempt to downgrade firmware 2.6 so at first i wasn't trying to be a dick but yea ur an idiot and ur just repeating the past u try to fuckin remake a update eboot and then u try to fuckin update like that but u are going to fail and the 2msm is already something its called the swaploit which was first used on firmware 1.5 and thats how homebrew got ran on 1.5 at first and i don't think sony is going to make that mistake AGAIN so yea........... try reading about some shit before u attempt something that is going to excit others lol for some reason

ya know what johny fuck u. u need to stop being such a negitve sonofabitch. dont u have anything better to do than to be an asshole to ppl

hey uhm h3r3t1c...i think everyone stole ur idea becuase all of a sudden all of these videos started poping up on youtube about people who almost got homebrew on 2.71. check it out: dont give up please!

http://www.youtube.com/results?search=2.71...s&search=Search

alot of thoes ppl havent got as far in developmetn as i have thoe

hey i hope i dont mean to bother you with this but, how are the homebrews coming?? you talk alot about the downgrader, but not much about the homebrews...have you gotten any further than the loading screen??

i ask because that would be great if we could run 2.71, and have all the extra features, rather than emulate it in 1.5. keep up the great work, it looks like you are making alot of progress!

byt he way are you still doing that two memory stick idea?? becuase one, you could ruin your memory stick doing that...and two, i dont have two memory sticks. so is there a way around that??

p.s. hey! i kno you from ipodlinux forums!

omg no on eis stealing his idea but this has been tried many many times before there is a lot of vids on how they got as far as him but yea he don't listen to me he just wants to repeat the past lol

yeah but i think he has gotten further development wise than they have. i think all those other people changed the param.sfo and saw that it didnt work and gave up, but h3r3t1c is not giving up.

p.s. johny 5, if you dont think he can do, you dont have to participate in these discussions...you can actually go on OTHER topics that you will enjoy rather than spamming and runining all of our fun. at least he is trying. if you dont think it can be done, that what YOU think. ANYTHING is possible, it just takes time.

i think this is definetly possible h3t3r1c! keep up the great work! dont give up! (i would help you, but i dont know that much about psp programming...)

oh yeah and johny 5, have you SEEN his downgrader idea?? he is SOO close! its amazing he even got passed the white loading screen. but we gotta figure out how to encrypt... or get passed the part that checks to see if it is encrypted.

iv got past that far iv got the downgrader to start completly but kernal mode is not "unlocked" so the psp will not start flashing the flash mem.

OMG H3R3T1C!!

if u pull this off i will thank you as long as the psp lives

actually i have tried this as well a LONG time ago to try to run homebrew on firmware 2.00 through the xmb its the same concept and everything and i got as far as the white psp screen yes but then when i tried the way u are doing i did the same thing and got as far as the update and it kept saying no need to update and then it returns to the xmb menu thats how far i got like u did but then i gave up as well because the then mph came up with a downgrader
but yea ppl have got that far as well as i have but then i quite because it was getting me frustrated lol



oh one thing once the update has started u can reach kernal mode/memory lol as long as u bybass that which saying no need to update

i tested his exploit. it gets to a part to where the update is corrupt. it is also disguised as a 2.72 update. it doesnt say anything about it not being necessary to update. but he may just not be far enough.

hmmph...

h3r3t1c just told me that he got further for the homebrew part of it. he said that it goes to the white screen, then it FADES AWAY, (it didnt use to do that). the game loads, but then it says it is corrupted. so we have made HUGE progress in the past few days.

johny 5, now that you have told us what you did, and what you think, you can leave now...we can take it from here thank you for your contribution...your services are no longer needed now if you will excuse us, we are going to run homebrew on our 2.71 psp's. thank you

lol

btw h3r3t1c i have seen videos on youtube that got as far as you did. have you gotten farther than them? also check your private messages.

homebew ya kinda, downgrader ya

iv been working on this for a long time now i think ever sence the locoroco demo

tell me something h3r3t1c...

is that doom eboot just the LocoRoco eboot with the data.psp removed and different icon?

cuz im starting think that your fucking us over

but not really

no its not just the loco roco (even thoe i used the locoroco param.sfo as a bace [because of the encrytpion code contianed within it] but i modifyed it to run the doom homebrew)

im running 2.70, wondering shall i upgrade to 2.71 or just wait for downgrade stuff and homebrews, coz it will be cracked soon!!!

h3r3t1c don't listen to that johny faggot he's just an ignorent asshole and he's jealous that you're gonna make history, you've gotten farther than that bastard could ever dream of getting

no upgrade to anyhigher firmware stay where u are right now!!!

how is the kazuo demo working out?

well so far iv found out it has different encrytpion(the first becaus FW2.71 came out in jpn and i updated with jpn fw and it was first demo on psp)