My 1.51 Downgrade Progress

DrKickflip13 · Post by **DrKickflip13** » Sat Jun 25, 2005 5:20 am

Heres my downgrade progress. I have been working with someone from a different forum on this for a few days. We determined 2 general rules that seem to be true

1) The update HAS to be run from a folder called UPDATE, not UPDATE% or any other name
2) You cannot run a modified update (not even a single digit) or you get a corrupt update error

Anyway...heres the EBOOT.PBP of the file we think is the closest to complete. It will not downgrade but it will not mess up your PSP either.

http://s45.yousendit.com/d.aspx?id=0WIX ... OZ7Q9DQ335

FrostAie · Post by **FrostAie** » Sat Jun 25, 2005 6:30 am

i also was experimenting and i compiled a eboot with the .psar of 1.52 the param.sfo the icon0 and the .psp from hello world and i got a strange result

DrKickflip13 · Post by **DrKickflip13** » Sat Jun 25, 2005 1:03 pm

Yeah..a strange result that helps a lot (sarcasm)

Èl Nächó · Post by **Èl Nächó** » Sat Jun 25, 2005 5:23 pm

You know what helps a lot? That lame ass banner and misspelling half the words in your signature. That's what helps a lot.

F9zDark · Post by **F9zDark** » Sat Jun 25, 2005 10:47 pm

For what its worth, I suggest you check out this thread:

http://forums.ps2dev.org/viewtopic.php?t=2257

pinhocarlos · Post by **pinhocarlos** » Tue Jun 28, 2005 6:50 am

so no news in running homebrews on 1.51 or downgrading it to 1.50??

mvpo.geo · Post by **mvpo.geo** » Tue Jun 28, 2005 7:24 am

to pincarlos....CAN YOU READ?

I don't think this is the way to go when it comes to downgrading, I think the fact that you get further by going into sleepmode first shows that this would be the way we should be trying.

nanoware · Post by **nanoware** » Mon Jul 04, 2005 5:59 pm

DrKickflip13 wrote:Heres my downgrade progress. I have been working with someone from a different forum on this for a few days. We determined 2 general rules that seem to be true

1) The update HAS to be run from a folder called UPDATE, not UPDATE% or any other name
2) You cannot run a modified update (not even a single digit) or you get a corrupt update error

Anyway...heres the EBOOT.PBP of the file we think is the closest to complete. It will not downgrade but it will not mess up your PSP either.

http://s45.yousendit.com/d.aspx?id=0WIX ... OZ7Q9DQ335

Hello fellow forum'ers, i am new here, i have briefed myself on the whole situation about the 1.51 firmware. I myself am a victum of the 1.51 US update. I am hoping that someone will figure out how to downgrade back to 1.5. I wish you luck DrKickflip13 and everyone else working on this, nothing is impossible, only time will tell!

Mike/Pippin · Post by **Mike/Pippin** » Tue Jul 05, 2005 5:01 am

Well in order to dowgrade to 1.5 from 1.5# you or anyone else would need to hack 1.5# so that you can run programs on it. And if they did that I dont think you would downgrade.

pokesomi · Post by **pokesomi** » Sun Jul 10, 2005 2:26 pm

Sadly i too have failed in my attempts. At first i thought it might be because the parental control level wasnt set so i edited the HTTPD program and the psp recognized the change, but no loading. Then I modified the info so it would match the UPDATE EBOOT.PBP but alas, to no avail. Hope this helps anyone.

Rumdada · Post by **Rumdada** » Thu Jul 14, 2005 12:54 am

all this downgrading is starting to put a smile on my face lol who ever dose it will be famous

mrdelayer · Post by **mrdelayer** » Thu Jul 14, 2005 3:57 am

and the most useless person in the world. downgrading will require a method of running homebrew on v1.5x, and thusly useless and counter-productive.

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My 1.51 Downgrade Progress

My 1.51 Downgrade Progress

hey dude

Re: My 1.51 Downgrade Progress