Downgrader Test for 2.50/2.60

[Dark_AleX]

To be used at your own risk. It is an UNTESTED software.

Users with TA-082 psp's shouldn try this. Also, it may be better that at the beginning, only users with a 2.50/2.60 NOT from factory (they updated from a below firmware) try this.
Check what version PSP you have here: here

Download link:

PLEASE TRY THIS AT YOUR OWN RISK, WE HAVE HAD REPORTS OF BRICKING FROM THIS EARLY ON
Password: I_Use_This_at_My_Own_Risk

I copy and paste the readme here. Read it carefully.

------------------------------------------
Downgrader Test for 2.50/2.60 by Dark_AleX

This is an *experimental* downgrader for 2.50/2.60

Experimental means here that it has not been tested on a real device, althought it has a theoretical base that it could work.

This software is free and untested, and i'm not responsable if it causes damages to your psp.
If you use this software, you agree that you are using this program at your own risk and that you won't blame the author for that.

"Someone told me that a downgrader for 2.50/2.60 was impossible. How does this work?"

This one uses another more risked technique (and i repeat: untested) than the mph downgrader.
It uses some sony libraries found in the 1.50 updater to perform the most critical steps, the logical format of the flash, and the ipl writing. See technical details for more info about how it works.

This software requires that someone with a 1.50 runs a little program and send you the output so you can init the downdate process. (by legal reasons i cannot provide those files directly, that's why this is needed).
The 1.50 program is TOTALLY safe, it only dumps the flash of a 1.50 user and it also extracts some special prx's found in the 1.50 updater.

Instruction for the 1.50 user
-----------------------------

1) Copy the folders downhelper and downhelper% from the folder 1.50 HELPER folder to /PSP/GAME/ in your memstick.

2) Obtain the 1.50 updater and put it in /PSP/GAME/UPDATE in your memstick.

Some download links for it:

http://www.psphacks.net/files/PSPFirmwares/1.5/

http://dl.qj.net/PSP-Firmware-1.50-File-(EBOOT)-North-America-PSP/pg/12/fid/163/catid/163

3) Init the downhelper program.
It will dump your flash and some files from the updater eboot to the memstick.

4) After that, the program will exit. You can now delete the updater from /PSP/GAME/UPDATE

5) You'll notice that you have a new folder in the root of your memstick called "DOWNDATER".
That's the folder you'll have to send to a 2.50/2.60 to let him test the downgrade.



Instructions for the 2.50/2.60 user
-----------------------------------

1) Copy the folder the DOWNGRADER/2.50/DOWNDATERTEST if you have 2.50
or DOWNGRADER/2.60/DOWNDATERTEST if you have 2.60 to /PSP/GAME/ in your memstick

2) Wait someone with 1.50 to pass you a folder called DOWNDATER and copy it to the root of your memstick.

3) Init gta and the eLoader

4) In the eLoader menu, choose the downdater test. WARNING: the program won't output any display and any warnings, it will init the downgrader process inmediatelly.

5) You'll see the your memstick flashing. That means that your psp is being flashed from the memstick.
You won't see any type of output in the screen (this is for safety). When the memstick finishes of flashing, WAIT at least a minute, and then reinit your psp by holding the power button.

6) That's all. If all went right, you'll have 1.50. If it went less good, you'll still have 2.50/2.60. If all went wrong, you'll have a bricked psp(except in the case you have the modchip) Remember that you have accepted that risk.


Technical details
------------------

This program performs the following operations.

- It loads the ipl_update.prx and lflash_fatfmt.prx from the 1.50 updater.

- It performs a logical format of the flash0 partition using the function
sceLflashFatfmtStartFatfm t found in the lflash_fatfmt.prx

- It writes a dump of the 1.50 flash0 to the flash0.

- It writes the Initial Program Loader (Ipl) using the functions sceIplUpdateClearIpl and sceIplUpdateSetIpl from the ipl_update.prx module. The ipl is embedded in that module.


Other considerations:
--------------------

- Users with TA-082 psp's shouldn try this. Also, it may be better that at the beginning, only users with a 2.50/2.60 NOT from factory (they updated from a below firmware) try this.

[lkjhgf206]

the master himself is posting but two threads had been locked up the last hours with this topic guess the mods will lock this one up too

anyway as I heard at least two or even three people successfully downgraded their PSPs .... also ask myself if this could be worth a try.... ahm.... no GTA here..... hmmm ....

well one question alex they are talking about different "version" of your downgrader --- is this true or is there just one such version.... I seen one without pass protection... this one here is with such a protection.... are they different ??

[gangsta_psp]

Please stop locking this up. I want to see someone with credibility test this so we can find out if its real.

[mathieulh]

if you allways lock the thread or remove the link no one will be able to test wether this downgrader works or not...

[Coldbird]

Ah - Active lately Alex, arent ya?

Good to see that you're working something out ;-)

[Networkgamer]

i've tried it and got a lovely new brick to set on my house!
although I've heard of 5-6 people who succeeded.

EDIT:And I did everything the readme said.

[rivera_129]

it seems they all used the same package from planetpsp to downgrade successfully

[aDcOoL]

Yeah, I was talking to a few people on IRC...a few of them said it worked, and another few said it didn't work and bricked their PSP...so it does look like we have something interesting here...

[Intelligent]

network what firmware do you have?

[daggerer]

Yeah, I was talking to a few people on IRC...a few of them said it worked, and another few said it didn't work and bricked their PSP...so it does look like we have something interesting here...

Yea some of them were lying, but which ones :S

[Delirium Trigger]

I'm not trying this. Even if it does work, it's far too risky. I'm not doing this until it's completely official, and it's refined so the risk of bricking is rather minimal.

[daggerer]

Where have you heard about these people that have succesfully downagraded / failed?

[Delirium Trigger]

There have only been success stories on IRC and a few forums.

[alexmae]

and you were lazy eh dark_alex :P

[soopergooman]

Experimental means here that it has not been tested on a real device, althought it has a theoretical base that it could work.


But it could werk is the point you're getting across. God how I knew that a downgrader was coming out efore July, I kept telling all my 2.5-2.6 psp friends that it would happen, I kept saying that the summer is when these things get done, and it's been the usual thrtee months since a big break!!!!!!
CHEERS MAN YOU ROCK !!!!!!!!!!!!!! :ROFL: :ROFL: :ROFL: :Jump: :Punk: :) :dj:

[TheMarioKarters]

Dark_Alex, thanks for the brick.

[aDcOoL]

TMK...that sucks...did you really brick your PSP?

[alexmae]

Dark_Alex, thanks for the brick.

welcome to the club

[Realn0whereman]

no hes having a field day joking about a brick>

[SpiderJames]

tmk, did u really brick your psp again !?!?!?

[TheMarioKarters]

tmk, did u really brick your psp again !?!?!?

Yes I ****ING DID!

Sorry..really angry.

[aDcOoL]

Wow...that sucks...good thing I didn't try it. :Punk: :Punk: :Punk:

[bossmanuk]

Dark_Alex, thanks for the brick.

Hey, he didn't make false claims and you knew what you were getting into.

[xsorifc28]

true, thats why i still havent tried it yet. not taking the risk.

[Slasher]

Yes I ****ING DID!

Sorry..really angry.

You are a moron. Sorry, but you really are.

I would have thought you learned your lesson after bricking what...3 PSPs?

[manias]

what are you doing!!!!! why would you even try this! come on guys..

[DUDE91345]

You are a moron. Sorry, but you really are.

I agree with u 100%

[Delirium Trigger]

I think that was his 7th <_<

[Daisako]

You notice it was taken off the front page? Or is it just me?

[TeamOverload]

We need more confirmations. The post leader should make an official confirmation count on the first post.

Ex:

Bricks: 1
Confirmations: 1