I found this downgrader on UseNET which may be of use to people stuck with v1.5x or v2.0 PSPs. I haven't tried it as I have a v1.5 PSP, so use at your own risk etc. etc.
Files Here 15 MB
Code:
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(_____ \ / _____|_____ (______)(_) _
_____) | (____ _____) ) _ _ ___ _| |_ ____ ___ ____ ___ ____
| ____/ \____ \| ____/ | | | |/___|_ _)/ ___) _ \ / ___) _ \| \
| | _____) ) | | |__/ /| |___ | | |_| | | |_| ( (__| |_| | | | |
|_| (______/|_| |_____/ |_(___/ \__)_| \___(_)____)___/|_|_|_|
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- A Homebrew Downgrade guide by systemx, Guide confirmed by Niacin -
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PLEASE NOTE THE DOWNGRADE FILE LINKS LOCATED IN THIS GUIDE WERE NOT DONE BY
ME I HAVE SIMPLY CREATED AN EASY TO FOLLOW GUIDE IN PERFORMING THE DOWNGRAD
PLEASE NOTE THAT NOT I NOR THE CREATORS OF THE DOWNGRADE ARE RESPONSIBLE
FOR BRICKED PSP'S. DO THIS ENTIRELY AT YOUR OWN RISK YOU HAVE BEEN WARNED
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The new 2.0 Downgrader for the PSP Is out, Please note that this takes
the current 2.0 Firmware and downgrades it to 1.5 Then you can load
homebrew on your PSP
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/!\ I recommend having the PSP Charged at 100% before attempting this. /!\
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If you have a 1.51 or a 1.52 you now need to upgrade your psp to a 2.0 in
order for the downgrader to work. This can either be done via the Demo
disc or if you are lucky enough to have WIFI use the update icon on the
psp. Or lastly Download the update and simply use a USB cable to transfer
it onto the psp. Below are the official Links for the Sony Updates Ive
included both JPN/US Update versions.
JPN 2.0 FIRMWARE - http://www.playstation.jp/psp/update/ud_03.html
USA 2.0 FIRMWARE - http://www.us.playstation.com/PSP.aspx?id=softwareupdate/pc_200.html
Ok now assuming that all went well you now have yourself a PSP 2.0 Firmware
What you now need is the MPH Release Downgrader which can be obtained from
elz-dev.com Once you have downloaded this plug the PSP into the USB cable
and it wouldnt be a bad idea to plug it into the Power point.
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/!\ I recommend having the PSP Charged at 100% before attempting this. /!\
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Now once you have downloaded the Zip Package and unzipped it with either
windows zip or winrar,winzip etc. the file layout is as follows.
/PSP
|- /PHOTO
|- overflow.tif
downgrader.txt
h.bin
index.dat
Now you are also going to need the 1.50 Update, which can be obtained from
http://shockzone.free.fr/PSP/Tool/EBOOT_1.50.zip
The eboot file in there must be placed in the memory stick as follows.
use the PSP USB function and a USB cable and trasnfer the file to
MEMORYSTICK:/PSP/GAME/UPDATE/EBOOT.PBP
Place the Overflow.tif from the MPHDowngrader.zip file in the following directory
!! Use the PSP USB function and a USB cable and trasnfer the file to the memory stick !!
MEMORYSTICK:/PSP/PHOTO/overflow.tif
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
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/!\ MAKE SURE THE PSP IS PLUGGED INTO THE AC ADAPTOR AND 100% CHARGED /!\
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Now Exit the USB Mode of the PSP, and goto the PHOTO MENU, this will now
launch the version changer. The PSP Light will go off after the version
changer has done it stuff. Wait approx 10-15 seconds and power the PSP
back on. Once it is on Enable USB Mode and check to see if the following
file exists.
MEMORYSTICK:/index.dat.bak
If so all is well, goto the game menu and Launch the PSP Update and simply
follow the onscreen instructions to update your psp. The update will get to
99% and Fail, No cause for concern this is still correct. The psp will now
do a faily length restart just let it play out. Now one of two things will
happen either the PSP will restart or it will turn off. After the LED goes
off and the psp has turned off.. Wait 10-15 Seconds and power the PSP back
on. You now have a 1.50 PSP, Congradulations.
This guide was written by SystemX, But the credit goes to MPH and the guys at
pspcaliber for there fine work.
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- A Homebrew Downgrade guide by systemx, Guide confirmed by Niacin -
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