how to upgrade 3.52 fw to 3.71 m33-2 ?

hello guys
i would like to know if its possible to upgrade a psp running 3.52 firmware to 3.71 m33-2 cfw
and provide instructions how to do it

thanx for your help

Ya need 3.52 M33-3 or 4 in order to do this.
http://www.pspbrew.com/forum/viewtopic.php?t=9567

ok . but the thing is that my psp has 3.52 only
its not 3.52 m33 ....

Ah ok, i thought you were at cfw. (custom firmware). Just do what asddasit said. You will need to downgrade your PSP using a "Pandora's Battery and "Magic Memory Stick". It is fairly easy to make if you have access to another PSP that has custom firmware on it or is at 1.50 official firmware.

i have the pandora battery but i dont know how to downgrade or upgrade it

i just want to upgrade from 3.52 to 3.71 m33-2

i have the pandora battery but i dont know how to downgrade or upgrade it

i just want to upgrade from 3.52 to 3.71 m33-2

Right now, it is impossible to upgrade from 3.52 Official Firmware to 3.71 M33-2 Custom Firmware. So you will need a pandora's battery to downgrade.

i already have the pandora battery

i just need the instructions how to upgrade it to 3.71 m33-2

You will also need a Memory Stick with the certain files on it in order for the Battery to work.

downgrade to 1.5 and up from there, or make a magic memory stick with 1Despertar cementerio V3 that will get you to 3.71-2 m33.

I'm not sure but does that have a chance to brick? I think it is a last resort option or something? not sure.

Ah ok cool, I thought i read somewhere where it was a bad option. But it upgrades the PSP straight to 3.71 M33 from any firmwarE?

[BKFraiders7]

wrong....the cematrio (sp?) V3 battery and stick provides u to go strait to M33 3.71-2..

thats great guys
but i need instructions or a tutorial to show me how to do it

any ideas ?

ok guys

i will try that and i`ll let you know

thanx for your time and your help

one more thing before i do this
the despertar cementerio reade me is to unbrick the psp .. not to downgrade it .. right ?

i already have a pandora memory stick or magic memory stick ..( thats what i think people call it these days )
and a pandora`s battery

what should i do now ?