Downdater UPDATE July 2: DOWNDATER_FINAL_AUTO released!!

[Deturbanator]

Here is the last version of the downdater for 2.50/2.60.
Changes:

- Added a checking for the AC adaptor. Now it's necessary in order to begin the downgrade.

- Removed the logs, they could cause problems with people with 32 MB memsticks.

Also i want to explain a couple of things:

- The "Disc cannot be read" problem. This is caused because the hardware restart that the downdater does, doesn't restart the umd device. There were a more proper way to reinit the psp, but it wasn't working in this exploit. Not a big problem really, since after you restart manually the psp, the problem is gone.

- DO NOT USE dumps of other firmwares. As important as the files, is the IPL (Initial Program Loader), which is written by a library of the Sony 1.50 updater, that is hardcoded to write the 1.50 IPL.

Download: at my site which i don't know if it is legal to post it here :)

good work, im gonna make a self extractor asap...

[Skunk]

Here is the last version of the downdater for 2.50/2.60.
Changes:


Download: at my site which i don't know if it is legal to post it here :)

thanks Dark Alax :Punk: :Punk: :Punk:

[skyrider123]

whats your websites URL?

[Deturbanator]

http://dax.psp-tuts.net/

[Skunk]

http://dax.psp-tuts.net/

there's also a download link for the final version at http://psp-homebrew.eu/index.php

[skyrider123]

thanks, my battery is at 65% can i downgrade with charger plugged in?

[Hoshizora]

Thanks Deturb. I was just looking up on Google for his website. :)

[Hoshizora]

thanks, my battery is at 65% can i downgrade with charger plugged in?

If you are on AC that should be fine! :Punk:

[skyrider123]

here i go *shaking uncontrolably*..... it's a factory 2.5 never upgraded and i can't see IC6001 in the top right hand corner so im right?

[matchung]

here i go *shaking uncontrolably*..... it's a factory 2.5 never upgraded and i can't see IC6001 in the top right hand corner so im right?

it is no problem. i dg my factory 2.5 directly to 1.5 without any problem :)

[skyrider123]

here i go! wish me luck!!

[timdrane]

Damn you all!! I bought a 1.5 on the day this news came out, for 50 quid more than i sold my 2.5 for!!!! I'd been waiting 6 months for this hack!! ARRRRRRRRRRRRRRRRRRRRRRRR RRGGGGGGGGGGGGHHHHHHHHHHH HH:Argh: :Argh:

[Hoshizora]

here i go *shaking uncontrolably*..... it's a factory 2.5 never upgraded and i can't see IC6001 in the top right hand corner so im right?

I can't figure out its a IC9001 or IC6001 cuz the text is partially hidden. But as long as its not IC1003 you are green to go.

Just one last check, make sure you have enough disk space and a "fresh install" of eLoader 0.97 before hitting the "X" or "O" button.

All the best!

[Skunk]

for anyone who can't use search to find the Downdater Final I make it easyer for you http://psp-homebrew.eu/hbname.php?id=1002

[Glynnder]

i just need those 1.5 files...

then i'll go, mine should work, its a 2.60 upgraded from 1.52

[skyrider123]

i have a 2gb memorystick pro duo :P

[skyrider123]

the light flashes...

[jfame617]

I'm sure this has been asked before on this long list of posts...but I only have a v2.6 PSP and don't have another one that is v1.5 or know anyone who has v1.5 PSP...can I still downgrade to v1.5 with only one v2.6 PSP? If so, how?

[skyrider123]

Omfg!!! It Worked

[Skunk]

I'm sure this has been asked before on this long list of posts...but I only have a v2.6 PSP and don't have another one that is v1.5 or know anyone who has v1.5 PSP...can I still downgrade to v1.5 with only one v2.6 PSP? If so, how?

Downdater UPDATE July 2: DOWNDATER_FINAL_AUTO released!! have a look at that post

[Deturbanator]

Downdater UPDATE July 2: DOWNDATER_FINAL_AUTO released!! have a look at that post

although I say wait about 30 min, I am currently uploading the final downgrader self extractor...

here is the read me for the self extractor!!

Downgrader Test for 2.50/2.60 Self Extractor by Dark_AleX/Mathieulh/Yoshihiro (edited by Deturbanator)

This software is free, 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.

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

1) Run Program "2.5 DG Final.exe"/"2.6 DG Final.exe"

2) It will prompt you, "To unzip to the specified folder, press the Unzip button".

3) It automatically specifes a directory, but you need to change it. Click Browse.

4) Look for your psp drive under "My Computer" and highlight the drive
(do not highlight any of the folders in the psp directory)

5) Click "ok", and you will be back to the origonal Self Extractor.

6) Press unzip, and wait for all of the files to be succesfully writen on the PSP memory stick.
Then close the Self Extractor.

7) Init gta and the eLoader

8) Connect your psp to the AC adaptor

9) 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.

10) 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, the psp should reinit and you'll have probably a 1.50.
It will probably say you "Cannot read disc". Don't worry about that, this is because the umd device
is not resetted properly. Simply restart the psp manually and solved.

11) 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.


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.


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

UPDATE (0.5): now it doesn't use the logical format. It was one of the causes that make this
not to work.

- 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.



Thanks to:

- hitchhikr / Neural for finding the kernel mode exploit

- Mathieulh & Yoshihiro for helping me to create this

- Edison Carter/Fanjita for the GTA exploit and the eLoader respectivaly.

- All the people from EOL and other forums that supported me

- All the people that risked their psp's for the tests to make advance the PSP scene.

Thanks a lot to all of them!!

[skyrider123]

I ****ING LOVE YOU (not literally) but ****ING LOVE YOU now just to clean it up... upgrade than downgrade which is 100% safe

[Hoshizora]

Omfg!!! It Worked

Congrats! Welcome to the 1.5 club :Jump:

[Glynnder]

AWESOME!!!!!!!!

Thank you so much.

Do i need to install the eLoader again b4 i downgrade?

[Skunk]

although I say wait about 30 min, I am currently uploading the final downgrader self extractor...

make sure it's easy to install for the one's who can't :rtfm: LOL

[Deturbanator]

make sure it's easy to install for the one's who can't :rtfm: LOL

it always has been ;)

[Darkas]

http://dax.psp-tuts.net/downdater_final.rar

check it out man

[Hoshizora]

AWESOME!!!!!!!!

Thank you so much.

Do i need to install the eLoader again b4 i downgrade?

You'd better do. Read in the forum some guy brick'ed his psp because of using emenu (unconfirmed though). So to play safe, reinstall a fresh copy of eLoader 0.97 before you start the downgrade process.

Best of luck!

[Glynnder]

^Yea, we knew.

[Glynnder]

soz i meant that in reply to darkas