PSP V2.0 to v1.5 Downgrade guide

[F34R]

its not REALLY a 1.0, it just thinks it is. You HAVE to run the 1.50 update.

[nonzero]

Thats part of the exploit process as the downgrader patches in memory to make the downgrader thinking its running on a 1.00 (hence allowing the 1.5 'upgrade').

A few people have reported this problem (never had it personally on all the units I've downgraded) in various forums and I'm inclined to think its due to the incorrect PBP firmware update being used in relation to the original localization of the unit.

[PSXP]

[QUOTE=wraggster
Also place the h.bin and index.dat from the MPHDowngrader.zip in the the root
directory of your memory stick as follows.
MEMORYSTICK:/index.dat
MEMORYSTICK:/h.bin

[/QUOTE]

When u say the 'memory stick root' where is this actually.
Srry for the noobie question.
Thx.

[nonzero]

root is the top level folder - ie the one that contains the \PSP and \MP_ROOT folders

[PSXP]

Thanks a heap.
Also do u think it will brick cause i have a australian psp?

[nonzero]

It shouldn't do as if it did people would be screaming all over the net about it.

Live dangerously, it makes it all the more exciting

[PSXP]

Im going ahead!
THanks a heap guys.
I just hope if it bricks then Myer will exgange it...lol
Ill tell u when im done.

[PSXP]

Is it ment to stay on a black screen with numbers to the left...? (at the start)
Cause thats what its doin...!!!

[PSXP]

IT WORKED!!!
Omg thanks guys, tell all aussie psps work with it!
Hombrew here i come!

[Carmack]

Hi, I'm having a problem with the downgrader. I have a JAP 2.00 PSP and when I run the downgrader, it has a black screen with a whole bunch of white text doing something. I've heard people say they just get frozen screens with the white text, but mine is doing something and it takes about 20-30 minutes to say done. When I restart the PSP, it is still at 2.00 and the updater won't work. Also, the index.dat.bak wasn't created in the root folder. Any help?