can patched magic memstick still downgrade phats?
 

well, i already patched my magic memory stick cuz i used it to mod my slim.

now, my question is, can it still downgrade the fat ones?

Before patch magic battery files to able to work with Slim, you can just copy all files (dirs /kd, /registry and file UPDATE.PBP) from memory stick to your computer. (may be in folder "PSP1000PANDORA").

After patch magic battery files do the same work - copy all files to your computer (may be to PSP2000PANDORA).

After all - just replace files on memory stick with files on your computer, when you going to flashing PSP or PSP-Slim. (but don't format your magic memory stick - you'll lose your IPL on it, and you'll forced to recreate Pandora from begining).

i just tried it, and you only need to backup the KD folder.