3.40oe-3.90m33 Custom Firmware Installation Guide. VERY NOOB friendly

[liveforsnow2288]

Great guide man, however, your post

3.80m33-5 UPDATE ONLY
To install the 3.80m33-5 update, you must be running 3.80m33.

Download these files:
PSP Downloads | 3.80 M33-5 Update
^^^ 3.80m33-5 Update

#1. Once the file has been extracted and the memory stick formated, open the folder, and you will see a UPDATEfolder. Right click the UPDATE folder and select copy

#2. Start the USB connection, navigate to the GAME150 change to GAME folder, right click on a blank spot on the screen and select PASTE.

#3. Exit the USB connection, go to the GAME menu memory stick and click the UPDATE.

#4. Congratulations, you are now on 3.80m33-5 by Team M33

3.90M33

[Altagrave]

how long is the actual update supposed to be?

I clicked the UPDATE option on my PSP already and it its been a black screen for quite a while now.

EDIT:
I'm trying to update to 3.90m33, but the 3.90 official firmware is corrupted, if i download the file from the official site PlayStation.com, will it still work?

[Asianess]

for the guide on how to get 1.50 to 3.52m33 when i click into the 3.52 m33 creator it says "Loading 1.50 firmware... File 150.PBP couldn't be opened.
Press X to exit."

And also b4 i did this i downgraded my psp to version 1.50 before hand so my psp is now version 1.50

[jeffero789]

hey im pretty new to this psp downgrading thing
im running ofw 3.9 on a fat psp (one of the first ones)
i wana downgrade so i can play isos???
im running vista on my laptop as well but have access to xp computers
can i downgrade, ive tried but have had no luck so far

[drew00629]

I thought i fixed the two errors just reported, but i guess not. ill get to em tomorrow.

[purple tree]

"this application doesnt apply to this firmware"

i downgraded from 2.71 to 1.50 and i am following ur steps. Step 1 isnt working fine cuz its givng me the above message. do i just continue anyways or what?

[sinuk]

Hi all,

Sorry for noob question.
I'm trying to upgrade from 3.52 M33-4 to 3.90 M33,
already follows the instruction, but my black screen is stop at :
" Unpacking... OK
Please wait..."

It's waiting forever.
Could somebody enlighten me how to resolve this ?

Thank you

[CSOEURO]

ye any one no how to recover flash0
cuz i wanted to put a custom theme but it didnt work.
so when i turn on the psp screen is black and it turns of in 15 sec
can any one help me pllzzz.

[Spider]

hey, so i got 3.40OC and want to update to 3.80M33.

Do i have to downgrade back to 1.5 normal then to 3.80m33?

[markeen23]

I was just wondering if there is a way to upgrade a 3.51 M33-6 to 3.52 M33 or something...coz I can't seem to finany 3.51 downgraders...and oh yeah, if ever there is ...how? lol, sorry just started reading things about upgrading

[Anile8er]

OK guys Im so confused I just bought my psp slim today it is running v3.72 official firmware what tutorial should I look at to mod it so I can play ISO games.

[SirRanRap]

ok, I guess I'm the stupid guy.

so I was on 3.4 OE-A
went straight to 3.52m33 then 3.52m33-4

*the m33-4 update took literally 2 sec so maybe it is the prob but my system status say i am now running 3.52m33-4

everything works fine as the 3.52m33-4 should but when i try to update to the 3.71m33 it gives me the message "this firmware requires 3.52m33-3 or higher".... it goes blank (doesnt turn off) then goes to the normal start menu. i have also tried downloadign straight from dark alex site but its the same file i'm sure

anyone have any clue

[Kabapu]

Hey, I created an account just to say thank you for the guide.

I'm one of the early homebrew users (back in the Lumines and GTA eloader days) ... so when this Custom firmware stuff started showing up, I had absolutely *no* idea where to begin.

But now I'm up to the latest and greatest firmware thanks to your guide (I've kind of just been letting my PSP sit around for months). Now all I gotta do is work on figuring out how to go about adding things like emulators - Genesis, SNES, etc (although I get the feeling that'll be pretty simple).

Anyway. Thanks for teh awesome-ness.

[drew00629]

sorry its been so long for replys on this.
spider run the m33 creator first. its the same as going from 3.40oe to 3.52m33
you still need to update to 3.52m33-4 before you can go to 3.80m33

sirranrap, ive heard of this problem before, but i do not know where that error is coming from. try restoring the default settings. if that doesnt work, try running chilly willys key cleaner.

Kab... once you get the emulators, instructions will be included in the read me text.

[nivlagx]

Hey, im new to these hacks and im not sure how I can check if im running 1.50.
By 1.50 do you mean firmware?