Help with downgrading PSP Slim (Tutorial didn't help)

Well, before I may continue, I have a few questions also.

I already have the Pandoras Battery from a PHAT PSP, will it still work on the slim?
And second, I tried using the tutorial I found, bu it did not help me.
It just ended up bricking the psp ):

use this program: Pandora CMD Front End you need the 1.5 , 3.71 and 3.8 frimwares also though.


this program makes it really easy to fix a brick.

it makes the magic memory stick, then you just put it in, then the battery, hit x and your good to go. just rember to reset your psp between steps when it tells you to.

Wow, thanks a lot man.
I fixed my brick though.

How do i work this...?
Seems complicated >.<

I'll link you to something easier, cuz I'm lazy

you get the official firmwares, name them 150, 371, and 380. go to the install folder ex.:C:\Program Files\Pandora_CMD

you put 150 in the C:\Program Files\Pandora_CMD\root folder
you put 371 in the C:\Program Files\Pandora_CMD\root_371
you put 380 in the C:\Program Files\Pandora_CMD\root_380

run the program and follow the steps 1 by 1

ohh, okay.
I'll see if it will work now.

Yepp.
I have 3.71 M33 on my slim now

good job just upgrade to 3.90 m33-3.