[Guide] How to manually install custom firmware v5.00m33-3

[oldgit9]

Originally Posted by Spiritz

hi i encounter these problem called "checking idstorage degeneration" ... i NEED HELP ><..........thankz

i can't see how you managed to get this message. did you follow the guide to the letter? because i have tested this guide myself twice and i had no problems at all.

[Spiritz]

hi morning.... i am currently 3.52 M33-4..... i followed every singale instruction... i even try to use a diff memory card.... but it do not work out..... the last post about the "352" that u are talking abt is to create in GAME folder rite but after i create the folder and put inside it shows corrupted files...

hmm... ok here the problem i encounter...

Unpacking Done...
please wait...

Verifying 390.pbp ... ok
Verfifying u235.prx.... ok

error 0X00000000..... checking idstorage degeneration....

[oldgit9]

the "352" folder goes into the "PSP" folder, not the "GAME" folder.

back -up your mem card (your game saves etc.) then format your mem card using the psp. the psp will then make new folders on your mem card including the "352" folder. formatting your mem card will also clear it ready for the update.

[Spiritz]

i used the same card on my frien psp it work just fine....only have problem with my set... how do i bring back my set to 1.5? so that i can upgrade again?

[oldgit9]

that is a bit strange. if you want to revert back to v1.50, you must have a fat psp. if you tried to go back to v1.50 on a slim, you will brick the psp.

i used an easy installer GUI to format and to put all the files onto the mem card. click "[Only registered and activated users can see links. ]" to download the easy GUI installer. when you have finished formatting the mem card, there is no need to do the battery. as you already have made one. just put the mem card into the psp, then put the battery in. now press X to take you back to v1.50.

[Spiritz]

i try downgrading to 1.5 ... and intsall 3.54m33-4 .. but i still got the same problem trying to install 3.90-m33...after that i try installing 3.71m33 and i got the same error message... which until now i do not undserstand...... anyone ?? !!! ><...

[oldgit9]

what firmware is your psp on at the moment?

[yusen]

i having v3.90m33-2 but how come my psp couldnt detect the game that is in 7z file? can u help me with this ?

[oldgit9]

Originally Posted by yusen

i having v3.90m33-2 but how come my psp couldnt detect the game that is in 7z file? can u help me with this ?

you need to download the 7 zip program. click "[Only registered and activated users can see links. ]" to download it. i found it at the official 7 zip site "[Only registered and activated users can see links. ]". when you have installed the 7 zip program, you should be able to extract the iso/cso file.

[yusen]

thanks for the information.. hahaha.. sorry for being noob. i'd realise that i was using the old winRAR installer, thats why it couldnt support the 7z at the very beginning.. THANKS PRO!