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flofrucht · 23/05/2011 10:25 AM

Because some guys asked me about a TUT how to Downgrade from Fw 6.3x, I made one.

Works on PSP 1000, 2000, 3000, 4000 (newer 3000) or PSPgo!

You can downgrade with this downgrader from Firmware 6.39 to Firmware 6.20. From Firmware 6.38 to Firmware 6.20. From Firmware 6.35 to Firmware 6.20. And from Firmware 6.31 to Firmware 6.20.

Supported models:
PSP1000 [01g], PSP2000 [02g], PSP3000 [03g / 04g /07g /08g /09g], PSPGo[05g]

Unsupported models:
Nothing! (yet)

Identify your PSP model:

Nothing is easier than identifying your PSP's model:
1) Download PSP Module Checker v1.0 *SIGNED*
2) copy the extracted folder to PSP/GAME
3) Launch PSP Module Checker 1.0 via GAME » Memory Stick.
4) Now you'll see your PSP's model.

[Image: pspmodulechecker.png]

I tested it by myself on a PSPgo with Datecode 9C and Firmware 6.38 ;=).

For this, you will need:
- PSP 1000, 2000, 3000, 4000 (newer 3000) or PSPgo
- a supported PSP model
-6.38/6.35/6.31 » 6.20 Downgrader By Davee, ported to 6.38 by someone. V3.1
-Official PSP Firmware 6.20 for PSPGO
-Official PSP Firmware 6.20 for PSP 1000/2000/3000/4000
-Official PSP Firmware 6.35 for PSPGO
-Official PSP Firmware 6.35 for PSP 1000/2000/3000/4000

Tutorial

1.Extract the downloaded archive.

2.Ms0: (ef0:-) / PSP / GAME / copy the Downgrader to this folder.
Ms0: (ef0:-) / PSP / GAME / UPDATE / copy the official Firmware 6.20/6.35 Updater (EBOOT.PBP) for PSP 1000/2000/3000/40000 or PSPgo to this folder.

If you have anything lower than an 07g place the 6.20 update in PSP/GAME/UPDATE.
[COLOR="DeepSkyBlue"]If you have an 07g or an 09g, place the 6.35 update in PSP/GAME/UPDATE.[/COLOR]

3.It should look like this: [Image: dw638or639.png]

4.Launch the Downgrader from your XMB.
[Image: 638downg.jpg]

5.Press X to start the SCE Updater. (PSPgo Users: Press "X" twice)
[Image: downgrader.png]

6.The 6.20 updater will appear, update as always.
[Image: downgradeq.png]

7.Now a BSOD ("Blue Screen of Death") will appear:
[Image: pspbsod.png]

8.Press O to solve the problem and you're done.

Did you get a white screen?
Press Start + Select + Triangle + Square while your PSP boots up!

Updater problems?

Spoiler:

9. Congrats...now you're on OFW 6.20, hope you enjoyed it ;).

It took me 1 hour to write and test it and to make screenshots, it isn't really difficult to say just thanks :).

-flofrucht

fajrlodhi · 23/05/2011 11:17 AM

Thankx bro for the awesome tutorial:)

Vegetano1 · 23/05/2011 11:40 AM

Quote:PSP 3000 = 07g / 09g, etc. Can not be used (with error display)

does this mean the 638 downgrader checks for the model??

DSpider · 23/05/2011 11:48 AM

Well, it should. Because who knows what dipshіt will try it a few months from now on a newer motherboard causing it to brick. There should always be a defined limit.

For instance if it's identified as newer than 09g (or it can't be identified) then it should return an error of some sort, or at least exit without making any alteration.

xBu · 23/05/2011 03:14 PM

Cool, thanks for the tut.

landon · 23/05/2011 03:36 PM

thanks man...good tutorial

Kana · 23/05/2011 05:03 PM

It detected my 09g without any efforts :(

minhjirachi · 23/05/2011 05:58 PM

You can downgrade on PSP 7G and PSP 9G. But your downgraded firmware is 6.35. If you downgrade to 6.20, your PSP will brick.

Link: http://www.megaupload.com/?d=0VBRZ8ZN

Kana · 23/05/2011 06:12 PM

yeah just did it. got to be the longest road. xD thank guys

cám ơn~

Mr. Shizzy · 23/05/2011 09:51 PM

Thanks for posting the guide flo! Madwin

About downgrading the 09g models:
Is it now possible with THIS release? Hmmm

Threaded Mode \| Linear Mode [Tutorial] Downgrading from Firmware 6.3X to Firmware 6.20
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