want to downgrade my 3.8 fat psp

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want to downgrade my 3.8 fat psp

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alexdes

Newbie

24. June 2008 @ 20:59

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hey, i wanna downgrade my psp, and i heard it must get to 1.5 to use all the good stuff. heres what i have so far
-the old(fat)psp
-version 3.80
-lumines(the game)
-1GB memory stick

i alos downloaded this

http://www.sendspace.com/file/ao6s5c

and it says i can downgrade my 3.80 to a 1.50.
i downloaded it, but im not sure how to use it...or if its legit

since im a noob at all this firmware and downgrading stuff, it would be awesome if i could get some help on what i need to do. ive done a lot of searching, but if i could get some specific help, it would be a huge help!

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ng2007

Member

24. June 2008 @ 21:21

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You need Pandoras battery. See this. Just create it and you can get to 3.71m33 to "use all the good stuff."

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alexdes

Newbie

24. June 2008 @ 21:42

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thanks a lot. but just checking...
it says i need a datel tool battery(since im not gonna hardmod it), but when i look online, it sells for at least 30$.
does everyone have to pay this much?...and is it worth it?

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ng2007

Member

24. June 2008 @ 23:06

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If you have a friend with custom firmware he could just create one, it doesn't have to be datel. All you need is somebody with custom firmware PSP.

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ng2007

Member

24. June 2008 @ 23:11

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I think they skipped this part:
PANDORA GUIDE: THOSE THAT HAVE 1.50 FIRMWARE PSP

Go to Game Menu Memory Stick and run the Pandora Battery Creator.

Press triangle to backup the battery eeprom. The PSP will then reboot to XMB.

Run the Pandora Battery Creator again via Game Menu Memory Stick and press X to convert the Battery to service mode. The PSP will reboot to XMB.

Turn off the PSP and take out the Battery then re-insert the Battery back in the PSP and the Universal Unbricker Menu should come up. press X to install 3.71 M33 to the PSP.

After the custom firmware is installed take out the Battery and plug the PSP in via AC Adapter and turn the PSP on (without the Battery inserted).

After the PSP boots to XMB place the Battery into the PSP and go to Game Menu Memory Stick and select OS Pandora Battery Tool.

You will get a warning screen just press X to get to the Main Menu. When the Main Menu comes up go to "flash only serial from mso:/eeprom.bin"

Go to Quiet Now and it will exit to the XMB. Now turn off the PSP and unplug it from AC Adapter. Now Take out the Battery then re-insert the Battery replacing the battery cover and use as normal now..

PANDORA GUIDE: THOSE THAT HAVE CUSTOM FIRMWARE PSP

Go to Game Menu Memory Stick and run OS Pandora Battery Tool. Press X at warning screen to get to Main Menu.

Select "backup battery eeprom to ms0:/eeprom.bin"

After the eeprom is backed up go to "convert to service mode"

Go to Quiet Now after the Battery has been converted and it will exit to XMB.

Turn off the PSP and take out the Battery then re-insert the Battery back in the PSP and the Universal Unbricker Menu should come up. press X to install 3.71 M33 to the PSP.

After the custom firmware is installed take out the Battery and plug the PSP in via AC Adapter and turn the PSP on (without the Battery inserted).

After the PSP boots to XMB place the Battery into the PSP and go to Game Menu Memory Stick and select OS Pandora Battery Tool.

You will get a warning screen just press X to get to the Main Menu. When the Main Menu comes up go to "flash only serial from mso:/eeprom.bin"

Go to Quiet Now and it will exit to the XMB. Now turn off the PSP and unplug it from AC Adapter. Now Take out the Battery then re-insert the Battery replacing the battery cover and use as normal now.

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