Using original Pandora Battery/mem stick with 3.80 ofw PSP

[nickerous]

Just got a new PSP after my old slim burned up. The new psp is on official firmware 3.80. I have a Pandora battery and magic memory stick that I created when the slim was first released. Can I use this to downgrade the official firmware? Do I have to modify the memory stick? Can I modify that memory stick without access to a homebrew enabled PSP?

[SSaxdude]

You should be able to use it if you already Pandorized the battery and put all the files on the memory stick.

[nickerous]

So, right now, the mem stick has all the files used to create it back when the 3.60 slims were released. I can just replace those files with the new files 3.80 files? Or, replace them with the dc5 files?

[No_one_in_particular]

If the Pandora Battery and Magic Memory Stick were created for your old slim, they should just work on your new one without having to modify anything.

[nickerous]

Well, when I insert the Pandora, the system powers on, but shows nothing on the screen. The memory stick lights up for a second, then the other indicator under the memory stick lights up a solid green and stays on.

I hit x to install the custom firmware, but it shuts off after a second. Nothing is installed.

[nickerous]

I get a M33_360_installer log on the memory stick. It contains this:

Install initialization... OK
Reading IPL... OK
Verifying ipl... Failed -> Not the expected IPL

Can I just replace the M33_360 files with the 380 files?

[nickerous]

Whoo Hoo!

Successfully installed 3.71M33-2. Had to recreate the magic mem stick using the PC and Desperatar V3 files. Everything worked and I am back using psp homebrew! Still using the battery from the burnt psp and the 4gig mem stick that was in the burnt psp.

:thumbup: