Downgrade PSP v2.0 to v1.5

Downgrade PSP v2.0 to v1.5 - September 27, 2005

After a long awaited time, the a PSP downgrader is finally available! This will allow all PSP owners who have upgraded their PSP to v2.0 to downgrade all the way back to v1.5. (this version will allow using homebrew applications) Also if you have v1.51 or v1.52, you will need to upgrade up to v2.0 and then you will be able to downgrade. If you do downgrade from v2.0 you will always be able to bring back v2.0 by doing the standard update procedure once again.

To downgrade do the following: (read entire post first! notes @ bottom)

Create the X://PSP/GAME/UPDATE directory if it doesn’t exisit.
Copy EBOOT.PBP (v1.50) into X://PSP/GAME/UPDATE folder.
Unzip the PSPdowngrade.zip package and open the folder.
Copy overflow.tif into X://PSP/PHOTO/ folder.
Then copy h.bin into the root folder. (X://h.bin)
Finally copy index.dat into root folder as well (X://index.dat)
Make sure your AC adaptor is connected.
In your PSP enter the Photos section, which will launch a little app.
You will need to wait ~30 seconds and then restart your PSP.
Then finally Game Menu and launch the v1.5 updater (downgrade).
Follow instructions and then at 99% an error should popup.
Thats normal so just restart the PSP and it should show an error.
Now restart the unit one more time and the PSP should be ready.

Notes: Make sure there are no other Photos other than the overflow image present in the photos folder during this “downgrade” procedure. To restart hold the power button for about 10 seconds once it is off wait 10 seconds and turn it back on. All credit goes to MPH for creating this hack to downgrade PSPs. Please do not use this for illegal purposes (piracy), but use it to use legal homebrew apps and opensource type games. The PSPdowngrade.zip will inculde all of the files required to downgrade your PSP.
Warning: Skatter Tech is only providing information on how to downgrade the PSP. If you PSP does by chance get damaged due to something you tried on this site, we are not going to be responsible so do these at your own risk.

Download: PSPdowngrade.zip
Links: PSP Updates | Toc2rta Wiki
Affilate: HackMyPSP (Plenty of great PSP Hacks!)

UPDATE: RUN HOMEBREW ON PSP v2.60

posted by Sahas Katta in Hacking
on 9/27/2005 at 06:00 PM with Comments Off

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132 comments.

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4/21/2006 11:10 AM

PANDARUS says

MY DEMO DID NOT HAVE ANY UPDATE ON IT , I DID LOOK , SO I MUST OF HAD A DIFFERENT ONE TO U SHUYIN.

4/25/2006 02:27 AM

anonimus says

ive downloaded ure winzip folder and followd your instructions and my psp wont read the overveiw file it says its corrupted?can you help me?

4/26/2006 12:05 PM

nick says

is this download sopposed to take an HOUR!!

4/26/2006 05:50 PM

Alex says

is there any word of the psp 2.6 downgrader because i am sick ok using Gta to load my snes9x and now they even came out with 2.7 no way im upgrading please tell me of the downgrade if any news about it

4/26/2006 09:49 PM

ART 16 says

no i havent, but nick i know what u mean i have 2.6 too. I wish the guy whose coming out with the N64 emulator (pspmonkey) will hurry up though :0

4/26/2006 09:50 PM

ART 16 says

no i havent, but Alex
i know what u mean i have 2.6 too. I wish the guy whose coming out with the N64 emulator (pspmonkey) will hurry up though :0

4/27/2006 12:09 AM

Ahneh says

Awww man… It says not enought battery to perform v1.5 upgrade(downgrade actually).
I already have my AC power in. Grrrr hope it doesnt mess up.

5/18/2006 10:56 AM

raj? lol what a name says

were i live that means crazy lol

5/23/2006 07:51 AM

Kasim Aziz (k unit) says

i did all of them steps (instructions) and when i go to the photo folder and click on the overflow.tif it says:- This image cannot be displayed.
The data is corrupted.
I am so stuck i dont know what to do please help me.
-> if you do your so kind.

5/27/2006 03:29 AM

JESS says

i did everything you told me and i seem to have big problems!! i mean big!! i went in to the overflow thing in photo and the first time i could not open it then i redid it all and now its not only froze from opening it, it will not turn off either not even when i take the battery out. please help asasp.

6/3/2006 08:01 AM

GREENMILK says

THIS IS A EASY WAY TO GO FROM VER 2.60 TO 2.00 JUST ASK SOMEONE U KNOW WITH 1.50 VER OR 2.00. TAKE OUT YOUR BATERY PUT IT IN THERE PSP AND TRUN IT ON FOR A SEC. THEN PUT YOUR BATTERY BACK INTO YOUR PSP AND BOOOOOOOOOOOOOOOOOOOM!!!!! INSTENT DOWNGARADE
$$$ SAVE CASH

6/12/2006 08:41 AM

Anonymous says

Rubbish after i downloaded the overflow had a trojan virus!!!!!!!!!!!!!!!!!!!

6/14/2006 05:42 PM

Marty says

THIS IS A EASY WAY TO GO FROM VER 2.60 TO 2.00 JUST ASK SOMEONE U KNOW WITH 1.50 VER OR 2.00. TAKE OUT YOUR BATERY PUT IT IN THERE PSP AND TRUN IT ON FOR A SEC. THEN PUT YOUR BATTERY BACK INTO YOUR PSP AND BOOOOOOOOOOOOOOOOOOOM!!!!! INSTENT DOWNGARADE
$$$ SAVE CASH

by GREENMILK - 6/3/2006 8:01 AM

how does one “trun it” and is it a “boom”?

6/27/2006 03:14 AM

cool guy says

yo guys pls tell me where to find the overflow.tif

6/27/2006 08:52 AM

Anonymous says

The overflow should download with the other stuff in the compressed file

6/28/2006 09:30 PM

k3v says

if anyone EVER! finds out how to downgrade from firmware 2.71 ( i know im screwed!) please email me @ andymilonakis555@yahoo.com i need to downgrade from 2.71 to at least 2.60!

7/4/2006 02:13 PM

xhn says

In case that you can not read the overflow.tif file correctly(such as no response and turn off), you may try to remove your umd disc, and then try again.

7/7/2006 12:24 PM