Running 1.5 / Any other firmware from the MS [Using Pandora] Guide

[wraggster]

Mathieulh posted this guide to Run 1.5 firmware from the MS [Using Pandora]


To do what you want to achieve is very easy.

- Install the pandora firmware to the memory stick using the normal procedure.


- Copy the files created on the memory stick somewhere on your computer

- save your flash1 registry folder into your memory stick root

- Extract 1.50 from a psar using psardumper.
extract it as encrypted and then once more as decrypted (save both dumps)

- Copy the encrypted dump folders to the root of the MS, and get pspbtcnf.txt pspbtcnf_game.txt and pspbtcnf_updater.txt from the decrypted dump, and use those to replace the ones from the encrypted dump located at ms0:/kd/

- Get the flashemu.prx and lfatfs_patched.prx from the pandora MS files you saved earlier (they are in the kd folder) and copy those into ms0:/kd/

- open ms0:/kd/pspbtcnf.txt and ms0:/kd/pspbtcnf_game.txt and ms0:/kd/pspbtcnf_updater.txt files using a text editor and :

- change /kd/lfatfs.prx to /kd/lfatfs_patched.prx

- add /kd/flashemu.prx right after the /kd/fatmsmod.prx line.

- save the files

Done, the 1.50 firmware will boot straight from the MS using the Pandora battery. Of course you may adapt this mod to another firmware such as M33.

[scarph]

its a hardware devhook

[IM back!]

cool, dual booting psp

[ian h]

the battery has gotta run out quick tho rite?

[MicroNut]

Sweet!
I've read that this might be possible.
First time I have seen it posted as a reality.
Cant wait to get home and try it out.

[DPyro]

I'd like to see someone make an installer for M33 :D

[pimp12]

yup same here

[Cloudhunter]

AFAIK, M33 won't work, as it needs a special FAT driver and patched files... as these are only for the 1.50 kernel.

Cloudy

[V3N0M]

The PSP Homebrew Scene never ceases to amaze..

[**1_Man_Matrix**]

Was wondering...

Could the Pandora battery be used to downgrade any PSP? If you purposely bricked a 3.60, or you might not even have to, then ran the pandora battery on it, you could start at 1.5? Is it that easy?

[Cloudhunter]

Was wondering...

Could the Pandora battery be used to downgrade any PSP? If you purposely bricked a 3.60, or you might not even have to, then ran the pandora battery on it, you could start at 1.5? Is it that easy?

Yes, and you don't even have to brick to do it :)

Cloudy

[DarthPaul]

Pandora's Battery is just amazing.

[LilSwish722]

not for me. i got a psp it doesn't work on >.<

[Shiori]

"
My psp history...Black 1.5>2.0>2.6>2.7>2.8(Traded)>2.71(Traded back)>2.81>3.0>3.03>1.5>3.03OE-C>3.10 OE-A> 3.10 OE-A'>1.50>3.03OE-C>BRICK!!!>(WOO RECOVERY)1.50>3.03OE-C>1.5>3.03OE-C>1.5>3.03OE-C>1.5>3.03OE-C>3.10OE-A>3.10OE-A'>3.40OE-A>3.51 M33>1.50>3.10OE-A>1.50>3.40OE-A>3.51 M33>M33-4>M33-6>M33-7>3.52M33>M33-2>M33-3>M33-4>1.50>3.52M33>M33-4>2.00>1.50>3.52M33>M33-4"

No wonder... >_>

[LilSwish722]

haha different PSP. that history is of my playing psp, the one i'm working on is my new psp...well kinda new.

[Briggzy11]

Well the downgrader remember actually worked on a SLIM PSP, it crashed when loading the battery but that means it WILL work, after a bit of coding the SLIM PSP could perhaps one day soon be loading 1.50 firmware using this same method...

...Its a great find and the homebrew scene can thrive off this when the SLIM PSP is to be released, I for 1 will work on it :D

[zoson]

Well the downgrader remember actually worked on a SLIM PSP, it crashed when loading the battery but that means it WILL work, after a bit of coding the SLIM PSP could perhaps one day soon be loading 1.50 firmware using this same method...

Source this, every report I've seen says it doesn't work.