QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

**Garp** · 09-27-2005, 04:14 PM

I've used this program myself and I can say that it is safe and it does work, IF you follow the directions. To remove it from the 28 pages that the other thread is currently sitting at, this will be posted at the top of all forums. Please direct all questions to either this thread or the Homebrew thread that will be joining it as needed. Thanks.

Downgrading from 2.0 to 1.5

The following two files are necessary...

MPH Downgrader
1.50 Update EBOOT

This will ONLY WORK on a 2.0.

1) You need to unzip the files MPHDowngrader.zip and EBOOT_1.50.zip. Use a program such as WinRAR, 7Zip, or WinZip (check Google). Once they are unzipped, you're ready to begin.

About Virus Warnings
Shortly after the release of the downgrader, the same exploit which makes this possible was used in the creation of malicious code; antivirus software have since started to block the downgrader files from extraction. If you cannot extract all files, you will have to disable antivirus for the duration of the downgrade process.

http://pspupdates.qj.net/2005/10/tro...wngrading.html

2) Set up a USB connection with your PSP and your computer.

3) Once the connection is set up, open up My Computer and browse to the removable disk that is your PSP. You'll need to set a few things up here.

4) When you first double click to open up the PSP on your computer, you'll be in what's called the root menu. There will be a PSP folder showing if you are in the right place.

5) Copy over to your PSP the following files to THIS location in the root folder...NOT in the PSP folder or any other folder. Index.dat and h.bin should both be in your root directory.

6) Once this is done, open up the PSP folder and then open up the Photo folder. Here, you will copy overflow.tif over, keeping it in the Photo directory and not a sub directory.

7) Now, go back to the PSP directory and go into the Game directory. If there is not already, create a folder called UPDATE. It MUST be called UPDATE and nothing else.

8) Open up the new UPDATE folder and then copy EBOOT.PBP into this folder from your computer. Once all of this is done, you're ready to downgrade. So far, so good.

Double check that you followed the above instructions before continuing.

Good.

9) Now, disconnect the USB connection from the computer and plug the AC adapter into the PSP. As with all upgrades, you must have a certain percentage of battery life as well as the AC adapter plugged in, or this will not work.

10) Go to the Photo icon on your PSP and scroll through the pictures to get to overflow.tif. You do NOT have to press anything. It will start automatically. Two strings of letters/numbers will appear. This is normal and good.

11) Wait AT LEAST 30 SECONDS and then turn off your PSP by holding the power button up until it fully shuts down. Then, start your PSP again.

12) You will now go over to the Game icon and scroll down to memory stick. Select it and you should see the 1.5 update.

13) Select it and start it up. Go through it as you've done before with your 2.0 update and follow the prompts. When the update reaches 99% it will crash and show an error. THIS IS OKAY. DO NOT PANIC. Once again press the power switch up until it fully turns off.

14) Now, turn the PSP back on. You will get another error. Just press the "O" button and it will restart after rebuilding the system data. Then just set it up as you did when you first got your PSP and you have a brand new 1.5 PSP. Be responsible with it. Once complete, you may remove the downgrader related files from the memorystick.

If you have any concerns, please check this again before going elsewhere due to being extremely busy. Good luck and be careful with this.

**Twenty 2** · 09-27-2005, 04:27 PM

Can you Confirm the downgrader working on US 2.0's?(1001PSP)

MrFlump · 09-27-2005, 04:34 PM

Yes, it works.

I've posted detailed instructions here as well How to DOWNGRADE your 2.0 PSP: Detailed Instructions

Tfizzle · 09-27-2005, 04:50 PM

okay, i dont know if it was just my bad luck or if it happens with all psps's but

if you have a theme set on your 2.0 psp, the version changer will not run when u go to the photo menu on ur psp. the psp will lock up and eventually shut off.

a simple way to fix this is to set your theme to default/none.

another thing i found out was with the wifi switch. after the downgrader ran and got to 99% i got the error that was expected. i restarted and got the other error that is expected. but when i restarted again, i got the same blue screen error.

this error only went away after i turned the wifi switch to off. when i restarted, the error was gone and i was able to proceed with the setup.

those are just a few problems i ran into. i dont know if it will happen on all psp's but it is a good thing to note in any of these guides that are being posted.

btw, for anyone else who was wondering, it is safe to upgrade from 1.5 to 2.0 and then back down again to 1.5. this is what i just did.

**alaz** · 09-27-2005, 04:51 PM

help guys please... i cant see any hex addresses after clicked on the photo... but ive followed all the instructions here... and there's no index.dat.bak help.. im dying..

Tfizzle · 09-27-2005, 04:54 PM

Quote:

Originally Posted by alaz

help guys please... i cant see any hex addresses after clicked on the photo... but ive followed all the instructions here... and there's no index.dat.bak help.. im dying..

do u have a theme set? or is your theme the default theme?(the one where the background changes every month)

if its set to a certain theme and not default, then try setting it to the default theme. its at the top of the list.

**alaz** · 09-27-2005, 04:59 PM

Quote:

Originally Posted by Tfizzle

do u have a theme set? or is your theme the default theme?(the one where the background changes every month)

if its set to a certain theme and not default, then try setting it to the default theme. its at the top of the list.

i've tried switching themes but still...the same... the screen only freeze then shut off.. help

(

**alaz** · 09-27-2005, 05:01 PM

** is it posible if you just upload the index.dat.bak then copy it on my psp.. so dat.. i can downgrade mine? sorry 4 my english... im really desperate ryt now

Tfizzle · 09-27-2005, 05:08 PM

i dont know if that work, nor do i want to risk bricking your psp.

you have to be doing something wrong.

is the overflow.tif the only photo in ur photo directory? it should be

**alaz** · 09-27-2005, 05:12 PM

Quote:

Originally Posted by Tfizzle

i dont know if that work, nor do i want to risk bricking your psp.

you have to be doing something wrong.

is the overflow.tif the only photo in ur photo directory? it should be

yup..

gimme some possible solution.. please

**alaz** · 09-27-2005, 05:25 PM

what the **** ive downgraded mine into 1.0

**alaz** · 09-27-2005, 05:26 PM

ive downgraded it to 1.0 and i still have the web... should i upgrade it to 1.5 or what? ASAP

Tfizzle · 09-27-2005, 05:26 PM

ok lets start from the beginning.

you sure your psp is a v2.0?

Tfizzle · 09-27-2005, 05:28 PM

what? how did u downgrade to 1.0?

**alaz** · 09-27-2005, 05:33 PM

Quote:

Originally Posted by Tfizzle

what? how did u downgrade to 1.0?

ive just remove the battery coz i thought it freezes then after that ive checked the files in the root dir.. and i got 100.bin camarche.dat index.dat h.bin...

btw.. i tried the flash0 by mph a while ago maybe that thinh affects my psp... due to desperation

oscar734 · 09-27-2005, 05:34 PM

as the topic, are we able to do that after the downgrade completed??? any risk of updating again to 2.0????

**alaz** · 09-27-2005, 05:34 PM

Quote:

Originally Posted by alaz

ive just remove the battery coz i thought it freezes then after that ive checked the files in the root dir.. and i got 100.bin camarche.dat index.dat h.bin...

btw.. i tried the flash0 by mph a while ago maybe that thinh affects my psp... due to desperation

sorry 4 my english

Eternal_Dragon · 09-27-2005, 05:40 PM

Is it possible to run homebrew/fastloader/etc... after you downgraded the psp? Can anyone confirm this?

**FrozenIpaq** · 09-27-2005, 05:42 PM

Quote:

Is it possible to run homebrew/fastloader/etc... after you downgraded the psp? Can anyone confirm this?

Yes you can, it acts just like a regular 1.5 with all the hacks and cracks :P

wekilledbambi03 · 09-27-2005, 05:47 PM

and you can definitly re-upgrade????

**Garp** · 09-27-2005, 05:49 PM

Absolutely.

**AquaFusion12345** · 09-27-2005, 05:51 PM

Again I'll ask in a new thread.
When you change your background to frame_buffer, do you then keep the frame_buffer image in your psp photo directory? or do you delete it and then add overflow to your photo folder?

**markymanxxx** · 09-27-2005, 05:52 PM

Just used it

Thank you soooooo much for this - it works perfectly if you follow the instructions - yay!

**Garp** · 09-27-2005, 05:54 PM

All you need it overflow.tif in the Photo folder (you can keep it there) and h.bin and index.dat in the root folder. Also, of course, the Eboot in the UPDATE folder. Anything else is unnecessary. You don't have to delete anything in the course of the downgrade.

Fade · 09-27-2005, 06:03 PM

Do you need to have previously had the frame_buffer.png set as your wallpaper before you start the instructions for the downgrade? If so, i think a lot of people might be missing this as a lot did not upgrade to 2.00 to try the exploit and didnt have this set.

mex666 · 09-27-2005, 06:04 PM

hello i have a 1.51 usa do i have to install 1.52 before upgrading to 2.0
or can i just upgrade to 2.0
THANKS

**AquaFusion12345** · 09-27-2005, 06:07 PM

IT'S PEANUT BUTTER JELLY TIME!!!(PEANUT BUTTER JELLY TI..BUTTER TIME TIME TIME) Holy crap it worked!

Tfizzle · 09-27-2005, 06:11 PM

Quote:

Originally Posted by Fade

Do you need to have previously had the frame_buffer.png set as your wallpaper before you start the instructions for the downgrade? If so, i think a lot of people might be missing this as a lot did not upgrade to 2.00 to try the exploit and didnt have this set.

no, you do not need to have frame_buffer.png set as the wallpaper. just follow the guide and doubl check each step.

Quote:

Originally Posted by Fmex666

hello i have a 1.51 usa do i have to install 1.52 before upgrading to 2.0
or can i just upgrade to 2.0
THANKS

you can just upgrade straight to 2.0. no need to upgrade to 1.52 first.

**Garp** · 09-27-2005, 06:16 PM

Yeah...either do the network update or just grab it from the Sony site if the files here are still down. Either way will work, AFAIK.

Glad the guide is being helpful, guys.

d4rkangel · 09-27-2005, 06:30 PM

edit: Dont worry figured it out, great guide!

09-27-2005, 04:14 PM	#1
Garp Join Date: Jul 2005 Location: Kentucky Posts: 2,042 Trader Feedback: 0	The Definitive MPH Firmware Downgrade Guide I've used this program myself and I can say that it is safe and it does work, IF you follow the directions. To remove it from the 28 pages that the other thread is currently sitting at, this will be posted at the top of all forums. Please direct all questions to either this thread or the Homebrew thread that will be joining it as needed. Thanks. Downgrading from 2.0 to 1.5 The following two files are necessary... MPH Downgrader 1.50 Update EBOOT This will ONLY WORK on a 2.0. 1) You need to unzip the files MPHDowngrader.zip and EBOOT_1.50.zip. Use a program such as WinRAR, 7Zip, or WinZip (check Google). Once they are unzipped, you're ready to begin. About Virus Warnings Shortly after the release of the downgrader, the same exploit which makes this possible was used in the creation of malicious code; antivirus software have since started to block the downgrader files from extraction. If you cannot extract all files, you will have to disable antivirus for the duration of the downgrade process. http://pspupdates.qj.net/2005/10/tro...wngrading.html 2) Set up a USB connection with your PSP and your computer. 3) Once the connection is set up, open up My Computer and browse to the removable disk that is your PSP. You'll need to set a few things up here. 4) When you first double click to open up the PSP on your computer, you'll be in what's called the root menu. There will be a PSP folder showing if you are in the right place. 5) Copy over to your PSP the following files to THIS location in the root folder...NOT in the PSP folder or any other folder. Index.dat and h.bin should both be in your root directory. 6) Once this is done, open up the PSP folder and then open up the Photo folder. Here, you will copy overflow.tif over, keeping it in the Photo directory and not a sub directory. 7) Now, go back to the PSP directory and go into the Game directory. If there is not already, create a folder called UPDATE. It MUST be called UPDATE and nothing else. 8) Open up the new UPDATE folder and then copy EBOOT.PBP into this folder from your computer. Once all of this is done, you're ready to downgrade. So far, so good. Double check that you followed the above instructions before continuing. Good. 9) Now, disconnect the USB connection from the computer and plug the AC adapter into the PSP. As with all upgrades, you must have a certain percentage of battery life as well as the AC adapter plugged in, or this will not work. 10) Go to the Photo icon on your PSP and scroll through the pictures to get to overflow.tif. You do NOT have to press anything. It will start automatically. Two strings of letters/numbers will appear. This is normal and good. 11) Wait AT LEAST 30 SECONDS and then turn off your PSP by holding the power button up until it fully shuts down. Then, start your PSP again. 12) You will now go over to the Game icon and scroll down to memory stick. Select it and you should see the 1.5 update. 13) Select it and start it up. Go through it as you've done before with your 2.0 update and follow the prompts. When the update reaches 99% it will crash and show an error. THIS IS OKAY. DO NOT PANIC. Once again press the power switch up until it fully turns off. 14) Now, turn the PSP back on. You will get another error. Just press the "O" button and it will restart after rebuilding the system data. Then just set it up as you did when you first got your PSP and you have a brand new 1.5 PSP. Be responsible with it. Once complete, you may remove the downgrader related files from the memorystick. If you have any concerns, please check this again before going elsewhere due to being extremely busy. Good luck and be careful with this. __________________ [center][b]Mario WFC Friend Code for Garp 236282 679010 Animal Crossing Friend Code for Garp 1804-4961-5896[/center][/b] Last edited by NeilR-X; 03-23-2006 at 06:26 PM..

09-27-2005, 04:27 PM	#2
Twenty 2 Developer Join Date: Jun 2005 Location: At my house... Posts: 885 Trader Feedback: 0	Can you Confirm the downgrader working on US 2.0's?(1001PSP) __________________ F.A.L.O?

09-27-2005, 04:50 PM	#4
Tfizzle Join Date: May 2005 Posts: 13 Trader Feedback: 0	okay, i dont know if it was just my bad luck or if it happens with all psps's but if you have a theme set on your 2.0 psp, the version changer will not run when u go to the photo menu on ur psp. the psp will lock up and eventually shut off. a simple way to fix this is to set your theme to default/none. another thing i found out was with the wifi switch. after the downgrader ran and got to 99% i got the error that was expected. i restarted and got the other error that is expected. but when i restarted again, i got the same blue screen error. this error only went away after i turned the wifi switch to off. when i restarted, the error was gone and i was able to proceed with the setup. those are just a few problems i ran into. i dont know if it will happen on all psp's but it is a good thing to note in any of these guides that are being posted. btw, for anyone else who was wondering, it is safe to upgrade from 1.5 to 2.0 and then back down again to 1.5. this is what i just did. Last edited by Tfizzle; 09-27-2005 at 04:53 PM..

09-27-2005, 05:34 PM	#16
oscar734 Join Date: Aug 2005 Posts: 24 Trader Feedback: 0	are we able to reupgrade to 2.0? as the topic, are we able to do that after the downgrade completed??? any risk of updating again to 2.0????

09-27-2005, 06:30 PM	#30
d4rkangel Join Date: Jun 2005 Posts: 29 Trader Feedback: 0	edit: Dont worry figured it out, great guide! Last edited by d4rkangel; 09-27-2005 at 06:39 PM..

09-27-2005, 04:34 PM	#3
MrFlump Join Date: Sep 2005 Posts: 30 Trader Feedback: 0	Yes, it works. I've posted detailed instructions here as well How to DOWNGRADE your 2.0 PSP: Detailed Instructions

09-27-2005, 04:51 PM	#5
alaz Join Date: Sep 2005 Posts: 59 Trader Feedback: 0	help guys please... i cant see any hex addresses after clicked on the photo... but ive followed all the instructions here... and there's no index.dat.bak help.. im dying..

09-27-2005, 05:01 PM	#8
alaz Join Date: Sep 2005 Posts: 59 Trader Feedback: 0	** is it posible if you just upload the index.dat.bak then copy it on my psp.. so dat.. i can downgrade mine? sorry 4 my english... im really desperate ryt now

09-27-2005, 05:08 PM	#9
Tfizzle Join Date: May 2005 Posts: 13 Trader Feedback: 0	i dont know if that work, nor do i want to risk bricking your psp. you have to be doing something wrong. is the overflow.tif the only photo in ur photo directory? it should be

09-27-2005, 05:25 PM	#11
alaz Join Date: Sep 2005 Posts: 59 Trader Feedback: 0	what the **** ive downgraded mine into 1.0

09-27-2005, 05:26 PM	#12
alaz Join Date: Sep 2005 Posts: 59 Trader Feedback: 0	ive downgraded it to 1.0 and i still have the web... should i upgrade it to 1.5 or what? ASAP

09-27-2005, 05:28 PM	#14
Tfizzle Join Date: May 2005 Posts: 13 Trader Feedback: 0	what? how did u downgrade to 1.0?

09-27-2005, 05:40 PM	#18
Eternal_Dragon Join Date: Jun 2005 Posts: 24 Trader Feedback: 0	Is it possible to run homebrew/fastloader/etc... after you downgraded the psp? Can anyone confirm this?

09-27-2005, 05:47 PM	#20
wekilledbambi03 Join Date: Jul 2005 Location: jersey Posts: 24 Trader Feedback: 0	and you can definitly re-upgrade????

09-27-2005, 05:49 PM	#21
Garp Join Date: Jul 2005 Location: Kentucky Posts: 2,042 Trader Feedback: 0	Absolutely.

09-27-2005, 05:51 PM	#22
AquaFusion12345 Join Date: Jul 2005 Posts: 120 Trader Feedback: 0	Again I'll ask in a new thread. When you change your background to frame_buffer, do you then keep the frame_buffer image in your psp photo directory? or do you delete it and then add overflow to your photo folder?

09-27-2005, 05:52 PM	#23
markymanxxx Join Date: Aug 2005 Location: London, UK Posts: 309 Trader Feedback: 0	Just used it Thank you soooooo much for this - it works perfectly if you follow the instructions - yay!

09-27-2005, 05:54 PM	#24
Garp Join Date: Jul 2005 Location: Kentucky Posts: 2,042 Trader Feedback: 0	All you need it overflow.tif in the Photo folder (you can keep it there) and h.bin and index.dat in the root folder. Also, of course, the Eboot in the UPDATE folder. Anything else is unnecessary. You don't have to delete anything in the course of the downgrade.

09-27-2005, 06:03 PM	#25
Fade Join Date: Sep 2005 Posts: 37 Trader Feedback: 0	Do you need to have previously had the frame_buffer.png set as your wallpaper before you start the instructions for the downgrade? If so, i think a lot of people might be missing this as a lot did not upgrade to 2.00 to try the exploit and didnt have this set.

09-27-2005, 06:04 PM	#26
mex666 Join Date: Sep 2005 Posts: 4 Trader Feedback: 0	hello i have a 1.51 usa do i have to install 1.52 before upgrading to 2.0 or can i just upgrade to 2.0 THANKS

09-27-2005, 06:07 PM	#27
AquaFusion12345 Join Date: Jul 2005 Posts: 120 Trader Feedback: 0	IT'S PEANUT BUTTER JELLY TIME!!!(PEANUT BUTTER JELLY TI..BUTTER TIME TIME TIME) Holy crap it worked!

09-27-2005, 06:16 PM	#29
Garp Join Date: Jul 2005 Location: Kentucky Posts: 2,042 Trader Feedback: 0	Yeah...either do the network update or just grab it from the Sony site if the files here are still down. Either way will work, AFAIK. Glad the guide is being helpful, guys.

QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

The Definitive MPH Firmware Downgrade Guide