Downgrade Fat psp with Slim psp possible? help pelase :(

[vinni10]

Current situation is that me and my friend have a slim PSP that is downgraded and a Fat PSP that needs to be downgraded:

We have a pandora battery
2GB memory Stick
Regular fat and regular Slim battery
Windows Vista
Fat PSP version 5.2
Slim PSP downgraded perfectly

So, so far weve tried the pandora installer and we made the magic stick or what we believe.
Problem, on the step to put magic memory stick and pandora battery, the pandora battery turns on automatically but it doesnt light up the screen or the lights on the left side.

So the real question is, would it be possible to downgrade fat psp with slim psp?
how do i make a magic memory stick for the fat psp?
is the pandora battery compatible with both fat and slim? or just one of them? the pandora battery is as big as Fat psp's battery.
is there a way to contact u faster than email?

Thank you.
--Vinni10

[Loonix]

All 'Despertar del Cementerio' verions should be compatible to both fat and Slim PSP.
So you should be fine when you build a DC8 with the Slim PSP

You might have problems with the MSPformat on windows vista... if possible grab a windows XP mashine to do the formating.
else i see no problems why it sould not work.

Does the same Combination work on the Slim PSP?
does the Fat PSP work as it should with OFW, does it play for example music from the MS?

[vinni10]

what is a DC8?

and the psp plays regular games im not sure wat is ofw sorry ; ; im a noob

do you have aim or msn?

[Loonix]

DC8 = Despertar del Cementerio v8 the (at the time) latest Custom firmware installer which installs 5.00M33-4 via the Pandora battery.

OFW is 'Official Firmware'

That it plays Official UMD games is fine. what i tried to check is weather it reads from the memorystick.
so... does it save and load savegames?

At the moment it is 3:00 in the morning where i am and i am dead tired.
I advice you to download the Despertar del cementerio v8 installer.
Read the included readme and follow it step by step.
then try the result on the Slim PSP with CFW just to check if it works. (not the flashing, just the Booting)
If it does try it on the Classic.
If it does not work something is wrong with you senior. sorry

[vinni10]

ok thank you and no no saved games, psp formated upgraded to 5.2 firmware

Ill report any problems. tyvm