Install 3.71 M33 on Your PSP in 4 Easy Steps
This post may be a bit late but I know a lot of you PSP owners out there are looking for installation guide for the 3.71 M33. For a bit of information, 3.71 M33 was created by Dark Alex. In other words, M33 is Dark Alex. Now on to the instructional guide!
Requirements
- You must have 3.52 M33-4 installed on your PSP. If you don’t have one yet, lucky for you I wrote a guide on installing 3.52 M33-4 too.
- A Slim (PSP2000) or Fat PSP (The older version) with 78% or more battery.
- PSP AC adaptor
- A USB Cable
- A Computer
- Ability to understand and follow instructions
- If you have the fat PSP, configure GAME folder to run on 3.52. How? Shutdown your PSP. Then power on your PSP while holding down your R button. This will take you to the recovery menu. Go to Configuration > Game folder homebrew and check if 3.52 is enabled. Press X or circle if not. Exit the recovery menu.

That’s it. if you have all these then you are ready to go!
Now here are the 4 very easy steps:
- Download the 3.71 M33 installer pack I’ve made just for you. Unzip the file to anywhere on your computer.
- Connect your PSP to your computer via USB and copy the UPDATE folder to ms0:/PSP/GAME
- Go to your XMB menu and run the M33 update program. The screen will go black and this is normal. Follow the instructions. Be sure you have your PSP plugged-in to the AC adaptor. Screen will change to the Sony Update screen. Accept and update.
- This last instruction is VERY important. After the update is finished, the updater will ask you to reboot by pressing X or O. Do so, press X or O and the PSP will restart. Have fun on your new upgraded PSP!
After successfully upgrading your PSP to 3.71 M33, you can install the 3.71 M33-2 update by following the guide I made here. Special credits go to Dark Alex. You can send him donations on his website via PayPal.
UPDATE: I wrote a guide on how to add the 1.50 Kernel Add-on for 3.71 M33. Please check it out if you need it.
September 29th, 2007 at 9:48 am
Yes but do you put the update n Game150 or Game
September 29th, 2007 at 10:36 am
Please read step 2.
September 29th, 2007 at 11:18 am
Hey thanks alot … you are life saver … I am total noob in upgrading the psp firmware. I was using 3.52 M33 - 3 and I am using 3.71 M33 !!!! Thanks to you
Keep up the good work
September 29th, 2007 at 5:34 pm
If you don’t mind my asking, what’s 3.71 got that 3.52 hasn’t? I have the m33-4 already; tell me why I should update… thanks
October 1st, 2007 at 9:01 pm
3.71 M33 supports the latest games and it has a theme changer on the XMB menu. You can also view the photos while listening to music simultaneously. The video has also added options like search by time interval.
It still supports backup ISO games and of course you could still play and execute homebrew using Noobz eloader.
Thanks.
October 2nd, 2007 at 1:10 am
http://www.stylemo.com/2007/09/28/install-371-m33-on-your-psp-in-4-easy-steps/
October 2nd, 2007 at 1:14 am
no.
October 2nd, 2007 at 1:30 am
[...] have PSP 3.52 M33-4, now what? You can either stick with this firmware for some time or upgrade it to 3.71 M33. I had mine installed with 3.71 M33 already and I say it’s really cool. There are new [...]
October 2nd, 2007 at 2:24 am
you are f… superman , thank you very much.
October 2nd, 2007 at 4:18 am
Thx
it workt job well done again m8 !
October 2nd, 2007 at 12:25 pm
yes i want to say something
October 2nd, 2007 at 4:46 pm
I just used the 3.52 m33-4 guide to upgrade and now I just used this one as well. Thanks for making this super easy to understand guide.
October 3rd, 2007 at 9:57 am
Hey guys theres a new 3.71 M33-2. This is the latest custom firmware.
October 3rd, 2007 at 2:58 pm
Ok, I just did the 3.52 m33-4 update, and when I go to use this one it sais “This program requires 3.52 m33-3 or higher.”
What did I do wrong? System information sais I’m at 3.52 m33-4.
October 3rd, 2007 at 3:29 pm
Scratch that last comment, I skipped right to the steps of doing it. Didn’t do this part.
“If you have the fat PSP, configure GAME folder to run on 3.52. How? Shutdown your PSP. Then turn on your PSP again while holding your R button down. This will take you to the M33 recovery menu. Go to Configuration > Game folder homebrew and check if 3.52 is enabled. Press X or circle if not. Exit the recovery menu.”
October 3rd, 2007 at 6:51 pm
Hi Help got 3.52M33-4 wont to update to 3.71M33 got the file but can not load i can not acces m33 recovery menu by pressing r while swith on i my doing somenthing wrong or is it my psp Any idea?
October 3rd, 2007 at 11:42 pm
socompro194: Yes there is. I have upgraded my PSP right to it already. Do you guys want me to write a guide for that?
Thanks.
October 4th, 2007 at 4:23 pm
yes please
the latest version should be the best right?
October 4th, 2007 at 4:52 pm
this is so easy to do thanks a lot!
btw r u filipino
October 4th, 2007 at 5:34 pm
I have a question…
why after i upgrade to this 3.71 version my psp didn’t detect my .cso format games?
it detect the .iso ones though.
how can i play the cso one or should i put it under a different folder? or convert to iso?
help me please…
October 4th, 2007 at 9:48 pm
mine doesnt even detect any iso
could anyone help me?
i put it in the ms0:ISO folder
October 5th, 2007 at 10:48 am
hi
i was wondering if someone can give me a general idea about how to do the latest 3.71 M33-2 update ?
thank you
October 5th, 2007 at 12:39 pm
Hi Shiar, you’re just in luck. I just wrote a simple guide. http://www.stylemo.com/2007/10/05/how-to-upgrade-to-371-m33-2/
October 6th, 2007 at 2:40 am
it says The Game Could Not Be Started. (80020148)
October 8th, 2007 at 12:21 pm
Hi slitz:
Try placing a UMD on your PSP drive. If it doesn’t work press Select button while on the XMB menu to bring out the VSH menu. Try changeing the UMD ISO settings.
October 8th, 2007 at 5:53 pm
Great for guide.i upgrade to 3.71m33 but many games iso. cso dosent work.is this beacuse of 3.71m33 ?anyone same situation .please someone help.or i should upgrade to 3.71m33-2 else any way to downgrade 3.52 or 1.5 on non ta-…. Just simple motherbo psp.thx
October 8th, 2007 at 6:08 pm
Thanks admin best guide .but after upgarding to 3.71m33 facing probleams with my game cso and iso.lot,s of games dont work.wont start .give some error..man should i need a pandora or any way to downgrade.HELP ME ADMIN…
October 8th, 2007 at 8:21 pm
Dude you did not make a tut for 3.71 m33 - 2
its out and i have it on my psp
its like copy paste x and ……. done :).
October 8th, 2007 at 9:15 pm
Yannick: I just did last week. Here you go. http://www.stylemo.com/2007/10/05/how-to-upgrade-to-371-m33-2/
October 8th, 2007 at 10:52 pm
So you mean if i upgraded 3.71m33 to 3.71 m33-2 .then i play all my iso and cso games.please tell me.i am waiting…
October 8th, 2007 at 11:45 pm
Yo ..i try every possible setting in recovery and xmb menu on my 3.71m33 but still cant play.a lot of my iso cso.but theme option is great on 3.71m33.STYLeMO HELP ME WHY CANT I PLAY ISO CSO ANY BUG IN 3.71m33.HOW MY GAMES WORK ON 3.71m33.any help
October 9th, 2007 at 12:04 am
@Kappukappu: Have you tried placing it on the ISO folder on the root of your memory stick?
Try going to the recovery menu and changing the GAME folder kernel to 3.71. If you have plugins enabled, try to disable them first.
I never experienced that problem before.
October 9th, 2007 at 12:09 am
Here are the settings on my VSH menu that works:
CPU CLOCK XMB: 333/166
CPU CLOCK GAME: 333/166
UMD ISO MODE: Normal
ISO VIDEO MOUNT: NONE
October 9th, 2007 at 3:35 am
Help!!
I upgraded FW 3.52 M33-4 to FW 3.71 give this error
“error 0×00000060 checking idstorage degeneration.
Help me pls
October 9th, 2007 at 3:44 am
Thanks ..i try my best put them iso folder(as doing last 1 -1/2 years) but nothing work,… STYLEMO PLEASE GIVE ME THE setting for-007 from russia with love..and need for speed,infected usa. Piret of carbi..etc..etc(fastloader,devhook,dexziso s emulater … games) .if these game work maybe other will.ok admin…
October 9th, 2007 at 10:02 am
can someone plz help: i just upgraded from 3.40 OA-E to 3.52 m33-4 and now im trying to download 3.71 but when i try to run the upgrade it says, this program requirs 3.52 m33-3 or higher. plz help me
October 9th, 2007 at 10:10 am
nvm Seventeen told me the answer
October 9th, 2007 at 10:44 am
Nvm I had fixed the problem by using keycleaner 1.4
……………
Help!!
I upgraded FW 3.52 M33-4 to FW 3.71 give this error
“error 0×00000060 checking idstorage degeneration.
Help me pls
October 9th, 2007 at 2:01 pm
Ok, I have ran the 3.71 M33 updater many times (checking and double checking that my kernel is set to 3.52) and I still get the error that a couple other people got: “this program requires 3.52 m33-3 or higher”. I am completely lost as to how this is happening. I have to say that I am a Homebrew first timer, just got my self a Pandora’s battery kit and downgraded from 3.71 ofw. Then I upgraded from 1.5 to 3.52 M33-4 (thanks to the handy guide on here) and am now attempting the 3.71 M33 update. PLEASE help me! Than you!!
October 9th, 2007 at 7:07 pm
Josh…i had face the same problem with u too….can anybody help us? tq
October 9th, 2007 at 7:28 pm
Try this:
Connect PSP to PC then go in to recovery mode, advanced, toggle flash1, then delete the config.se file.
Josh i have try this but i still can’t upgrade…maybe u can give a try i got this help from psphack
October 10th, 2007 at 12:32 am
i’ve upgraded to m33 3.52-4, and trying to upgrade to m33 3.71, but it keeps on bricking. it seems like the instructions are pretty clear, i have a FAT psp, @ M33 3.52-4, GAME folder running at 3.52, copied the UPDATE folder to PSP/GAME. ran it and it gives me an error at 99%, and this has already happened three times.
i figured if i can follow the much harder instructions to unbrick my PSP, i can do this, what’s happening? help! thanks.
October 10th, 2007 at 12:37 am
Need help guys many iso and cso wont work .i try every setting in recovry and xmb.anyone face same problem in 3.71m33?
October 10th, 2007 at 1:26 am
hai guys i had been searching the solution whole day but i think i give up now ….
i’ll stay at 3.54-4 M33….
October 10th, 2007 at 2:47 am
Hi guys,
mine can only read cso but not isos!! OMG has anyone found a solution??
October 10th, 2007 at 2:50 am
guys i found something tt works!!
Make sure the title of the ISO/CSO is short.
Example:
Correct — Fifa07.iso
Not Correct — FIFA-07-[PSP][EUR][www.torrent site.com].iso
——————————————————————-
Now right click on the ISO/CSO file and choose Properties. Make sure the Read Only and Hidden box is unchecked and the Archive Box is checked.
——————————————————————-
Go into recovery mode (Hold R shoulder button down while turning on PSP)
Now go to configuration then to UMD MODE and keep pressing X till you see Sony NP9660 NO UMD.
When it is set to the above setting go to BACK and press X.
Now go to ADVANCED and press X.
Go to ADVANCED CONFIGURATION and press X.
Make sure all the settings here are disabled.
Now EXIT out of recovery.
Now try the ISO/CSO.
October 10th, 2007 at 8:22 am
I am just going to try to re-downgrade with the pandora battery and then start over. if it works then maybe it was just a bad install?? the only thing i did between the two upgrades from 3.52 M33-4 to 3.71 M33 pop in a memory stick that had game iso’s on it just to see if they ran, and they didn’t. so then i continued on to to the 3.71 M33 update. I will post if I get it completed.
October 10th, 2007 at 8:55 am
looks like i was so excited to get 3.52 M33-4 on my ofw PSP that i skipped a couple of steps at the end of the update. If others are having this problem just follow the last steps all the way through before you jump for joy! I now have a 3.71 M33 PSP. I sure do love pandoras battery. Thanks again for the perfect guides!
October 10th, 2007 at 8:44 pm
Sebas i try as you said.but nothing work.GUYS JUST STAY WITH 3.52m33-4.ITS BUG FREE..STABLE.. AND BEST .WAIT FOR 3.71M33 TILL SOME TIME..OTHERWISE YOU FACE MANY PROBLEAMS MAYBE!
October 10th, 2007 at 10:49 pm
i agree with u kappukappu
October 10th, 2007 at 11:30 pm
wow…..i finally make it to 3.71 m33-2
i was just reinstall my 3.52m33….then i try to install 3.71 m33…..it work for me….
dude….if any of you have a problem pls try to follow my step…tq!!!
October 11th, 2007 at 3:04 am
Game still wont work NEED HELP GUYS. WELL DUNCAN NOW GOOGLE FOR 3.71M33 THEMES(80 theme for 3.71m33).AND MAKE THEME FOLDER UNDER PSP ENJoy THEME ITS GREAT..(try to play 007 from russia with love..need for speed 5.1….and tell me settings.
October 11th, 2007 at 6:40 pm
Hey, it bricked my psp! Anyone? Help? I’ve upgraded from 3.52 M33-4.
October 11th, 2007 at 7:18 pm
Did you follow the instructions step by step?
October 12th, 2007 at 4:14 am
STYLEMO MANY ISO CSO AND DAXZ ISO GAMES WONT WORK.LIKE 007 FROM RUSSIA WITH LOV..NEED FOR SPEED..PERSUIT FORCE,.AND ALL DAXZ ISO GAMES ..ANY HELP
October 12th, 2007 at 4:48 pm
1.50 > 3.52 m33 > 3.52-4 m33 > 3.71 m33…..thank you Stylemo
October 12th, 2007 at 9:16 pm
Ok i just downgrade to 1.5 then 3.52m33.NOW game iso cso,s working.BUT WHY NOT ON 3.71M33 IS there any bug?
October 13th, 2007 at 3:00 am
Hello all, I am getting ready to go to Iraq and I just purchased a PsP to keep my sanity, I have had it just long enough to figure out how to load music and pics on it and how to update the system, it is currently sitting at 3.72 sony update, but in my adventures i discovered ou can download games in .cso and iso format, but I can not figure out what to do from there, and I am still reading, I know the answer prolly pretty simple but I could really use some high speed expert advice on how to tweak this and make it to where I can down load my games and movies so I don’t have to ruin umds with all the sand and stuff and keep my sanity please.
Sincerly Mutt
October 13th, 2007 at 1:58 pm
Iraqbound…mayb u shud try reformatting ur memory stick usingur psp ferst…i hope it help…
October 14th, 2007 at 4:06 am
When I click x on the M33 update.. It helps me shut down.. Whats the problem?
October 14th, 2007 at 12:39 pm
Can I install the 3.71 update with a custom (flashed) theme installed? Will there be any problems?
October 14th, 2007 at 12:42 pm
Hey styleemo, I wanna say thanks! I was ignorant of the fact there’s a recovery menu, and so many steps to do on it, and was stuck for hours! Now I’ve got it settled, so ya tyvm!
October 15th, 2007 at 1:43 am
how can i extract the rar file??
October 16th, 2007 at 11:54 am
Hi carlo. Use Winrar or winzip. Find it on google.
October 17th, 2007 at 4:48 pm
Just wanted to let you know that when I tried to download your 3.71 M33 Installer pack, it said that the files were gone so could you please update that? I’m in the current process of updating to 3.52. Thanks and great site man
October 18th, 2007 at 12:26 am
Invalid Quickkey. This error has been forwarded to MediaFire’s development team.
can’t seem to download package any mirror site?
October 18th, 2007 at 7:13 pm
@fated: Mediafire has deleted the file. I have to re-upload it again. Check back in awhile or maybe tomorrow. Thanks.
October 18th, 2007 at 10:42 pm
@stylemo thanks in advance!
maybe i’ll try checking it now… great site!
October 19th, 2007 at 12:03 am
Thanks for the quick response
October 19th, 2007 at 6:41 am
hey stylemo
thnx m8 ur guides r top notch.
Just waiting on ur upload of the 3.71 installer pack. Thnx in advance m8.
cheers
xiii
October 19th, 2007 at 8:54 pm
nice guide man, i am going to try it but the download for the 3.71 M33 installer pack says “Invalid Quickkey. This error has been forwarded to MediaFire’s development team.”
I heard the normal 3.71M33 was buggy and stuff, try upgrading it to 3.71M33-2 it should work. Where is the 1.50v2 kernal addon? is it in the installation?
Thanks man for the great guide. Much Appreciated
October 19th, 2007 at 9:19 pm
There you go. I’ve updated the 3.71 installer pack already. It doesn’t include the 1.50 kernel but i’ll write another guide about it in the coming next few days.
Thanks all!
October 20th, 2007 at 1:07 am
I upgraded FW 3.52 M33-4 to FW 3.71 give this error
“error 0×00000060 checking idstorage degeneration.
i already use keycleaner 1.4 fix the problem but then i got this message when i try to update to 3.71,
“The system configuration of this PSP(TM) system does not appear to be correct. The update cannot be completed. Contact technical support for assistance. (DRNFFFFFFBO)”
pls help me…
October 20th, 2007 at 8:16 am
help guys, i got an iso of fifa 08. But it doesn’t work. It doesn’t even show up in XMB!! stylemo, can u help?
October 20th, 2007 at 11:40 am
File is down again :*(
October 20th, 2007 at 3:46 pm
I cant seem to download the file
October 21st, 2007 at 12:20 am
i am installing it at the moment, seeing the sony firmware install is kinda spooky. done now, says i have 3.71 m33…thanks alot!!!
October 21st, 2007 at 6:38 am
i meant to write it here and wrote to the 3.52 page instead. the file download seems to be taken down again. would appreciate it if we can get it working again. thanks again the tutorials for 3.52 m33-4 works awesome
October 21st, 2007 at 2:40 pm
Your downloads down again. Seeing as how this is by far the most straightforward and simple guide I’ve so far seen, I hope you replace it soon.
October 22nd, 2007 at 8:43 am
downloads down,can u re-up and how to play iso file?thanx mayn
October 22nd, 2007 at 9:34 am
dis site is tight.simple and reader friendly n stuff
October 22nd, 2007 at 12:01 pm
Do I also need to install 3.52 M33-4 on my new slim before able to upgrade to 3.71 M33?
I just bought the original slim set recently.
Do I follow the steps accordingly? From 3.52 M33-4 to 3.71 M33 then to 3.71 M33-2. Or can I install 3.71 M33-2 straight.
If ever one day, I decided to remove the firmware upgrade, is it possible to roll back to the original firmware when I bought it?
Please help. Thanks.
October 22nd, 2007 at 12:03 pm
Sorry to dual post, will this steps worked on a PSP2006?
October 22nd, 2007 at 2:52 pm
i can’t seem to download the installer pack…
October 22nd, 2007 at 3:56 pm
my psp is version 3.10. how do i upgrade it to 3.71?
October 23rd, 2007 at 6:27 pm
No iso or csos work on 371m33-2 wat do i do
October 25th, 2007 at 3:37 pm
i follow the step to upgrade my psp to 3.71 but it says game cant b started. y?
October 25th, 2007 at 4:49 pm
@Jumi, you say you have 3.10 firmware. You can’t upgrade to 3.71 M33. You have to downgrade to 1.5 first. Be careful with tinkering your PSPs because I won’t be held responsible if something happens to your device.
@Anup: Make sure your isos are named properly. The filenames should not exceed 50 characters. Or try resetting your device.
October 25th, 2007 at 7:22 pm
idol can you please update the download site for 7.31 M33, can’t download it. thanks in advance.
October 25th, 2007 at 10:09 pm
Thanks a lot!!
October 26th, 2007 at 1:37 am
hi all 3.52m33-4 is good.any one have?
October 26th, 2007 at 1:40 am
hi stylemo how are you man..just keep going
October 26th, 2007 at 8:28 am
when i try to load the update it says this update requires 3.52 m33-3 or higher and im already 3.52 m33-4
October 26th, 2007 at 10:06 am
@kappukappu: I’m doing great man. I’ve got lots of work to do man
@JAYJAY402: Try to reset your device or format your memory stick. Haven’t encountered that one yet.
October 26th, 2007 at 9:11 pm
Hi there, I’m Corisco from Japan. Thanks a lot for the tutorials and files! I’ve tried to download this 3.71 installer pack, but the link is broken.
Please, can you fix the link or send this file to me? Thx again!
October 26th, 2007 at 10:53 pm
great work stylemo also take care of your health….start running every morning..
November 1st, 2007 at 9:37 am
Can someone send me the file the link is not working for me?
Thanks in advance
November 3rd, 2007 at 12:39 am
[...] used this guide to go onto 3.71 M33. As it says you need to go to 3.52 M33 first, which is also in the guide. [...]
November 4th, 2007 at 11:52 am
Hey dude, i think your installer pack for 3.71m33 is still down… please have time to upload it… thanks man!
November 6th, 2007 at 4:19 pm
i have fat psp i have done 3.71 now its not playing games from memory card and tell me haow to downgrade it
November 6th, 2007 at 4:21 pm
hi tell me haow can i play games in my psp its fw is 3.71 original
November 6th, 2007 at 5:36 pm
@babu - you can actually play games from your memory card. you can play PSP demo games if you want. or you can just buy UMDs for your PSP. If you meant playing backup games, you should first downgrade that PSP using Pandora’s battery or let someone with xperience downgrade it for you.
November 7th, 2007 at 6:27 am
Unable to upgrade from 3.51M33-1
Grateful for some help/advice/links for the problem I seem to have…
Have been using Devhook to give me firmware 3.11, but needed to upgrade further so used M33Creator to get to 3.51M33-1. However I now need to upgrade further and want to go to 3.71.
This is where my problem begins. I have downloaded the correct software and boot files and followed the instructions exactly (just like I did to get to 3.51) for 3.52M33 (as I undertsand to get to 3.71 I require to be at 3.52M33-3 (or 4)) however when I run the M33Creator I get the following error “3.52 PSAR size doesn’t match”. Have tried different versions of 3.52creator and 3.52 BOOT. Have also formatted MS (1GB) and used another MS (1GB) which still did not resolve the problem.
What I would like to know is :-
a) how can I upgrade to 3.71 - what am I doing wrong ?
b) If somehow I can’t upgrade further because of a problem, how can I return to 1.50 so that I can then upgrade to 3.71 - hopefully with instructions.
c) Are there any other options that I could do without “bricking” my PSP ?
Thanks in advance for any help provided, and keep up the great work.
November 7th, 2007 at 7:21 am
@jtj43: If you have 3.51 M33-1, I think you may have to install the updates first. I mean update it to 3.51 m33-7.
After that, you can now install 3.52 M33 following my guide.
And If somehow that doesn’t work, you can get return to 1.50 by using the recovery mmode. You can get to it by shutting down your PSP and restarting it while holding the R button.
November 8th, 2007 at 6:20 pm
Hi.. cant download the file coz the link is broken.
Would anybody plz upload it…
November 9th, 2007 at 6:49 am
plzzz can u upload the link, its dead, i really want this m33 3.71 thnx stlemo!!
November 9th, 2007 at 9:02 am
The file has been reuploaded. Get it now.
November 11th, 2007 at 6:26 pm
Hey dude thanks for the upgrade , ur a genius
November 13th, 2007 at 12:18 pm
NEED HELP!!!! ihave a psp with fw 3.03 and i upgraded it to 3.52 then to 3.71….i want to go back to 3.52…what shud i do…???????????
November 13th, 2007 at 4:48 pm
I already update my new PSP slim through WIFI network (im not sure if though RSS) to original firmware 3.71. What should i do the step does not work..pls help thanks
November 14th, 2007 at 10:48 pm
[...] PSP with 3.71 M33-1 or 3.71 m33-2 Custom [...]
November 15th, 2007 at 11:09 pm
hi stylemo great work.and thanks.any recovery or downgrader to 1.5.if somthing gose wrong…
November 16th, 2007 at 12:26 am
@kappu: thanks. you gave me an idea. I’ll write a post on how to get back to 1.5 firmware.
November 16th, 2007 at 5:57 pm
my psp is bricked. i cant see any difference between the screen when i turn it on and when its switched off. is it semibricked or..? and how do i unbrick it? help>
November 16th, 2007 at 5:59 pm
and ive tried the backlight button many times…
November 16th, 2007 at 6:14 pm
before it got bricked thr was this message:
some of your idstorage keys have not the correct values, probably due to a downgrader. In order to continue, press X to restore the correct values, press R to exit.
i pressed X, and it got bricked.
November 16th, 2007 at 6:30 pm
Tinkering with your PSP is a very delicate process man and you should know that. Stylemo wrote a very good and easy to follow guide so guys who are new to all the hacking thing can easily do the process.
Hey maybe you should try the recovery mode. Turn off your PSP. Be sure that the green power light is off. Then turn it on while pressing the R button. If you are successful you can recover it.
The cause of most of these problems are faulty memory sticks. You guys should know that. Format your Memory Stick before doing the process to be sure.
November 16th, 2007 at 7:15 pm
how do u know if your memory stick is corrupted?
November 17th, 2007 at 4:04 pm
do i need to have the memory card formated with only this update on the memory stick?
reason why. it just reboots and plays my umd game disk when trying to do the update.
thanks for any nfo to cure my problem.
November 19th, 2007 at 5:01 am
Hi, I cant start my recovery menu, nothing happens when I press R when starting the psp. Could the psp brick if I dont have the right “kernel” set?
November 19th, 2007 at 5:56 am
hi i think my psp is bricked…i tried a xmb then my psp juz hang up…what shud i do…all i can open is the recovery menu….i have a 3.71 fw
November 19th, 2007 at 5:58 am
hi i think my psp is bricked…i tried to
put a theme then my psp juz hang up…what shud i do…all i can open is the recovery menu….i have a 3.71 fw
November 20th, 2007 at 10:09 am
i have already started the program and the screen turned black as mentioned but it stays black like forever?
November 20th, 2007 at 10:58 am
@Jurvis: You sure you followed the instructions step by step?
November 20th, 2007 at 11:32 am
yes. very slowly trying to set everything!
November 20th, 2007 at 1:52 pm
i faced this problem like boom:some of your idstorage keys have not the correct values, probably due to a downgrader. In order to continue, press X to restore the correct values, press R to exit.i was scared to press X coz i dont want my PSP to get bricked what do i do now?
November 20th, 2007 at 6:03 pm
@Jurvis: It’s your choice dude. Press X or exit the installation. It’s like choosing between the red pill and the blue pill and finding out how deep the rabbit hole goes. Well, it’s up to you. It’s your own risk dude.
I’m a risk taker so if you ask me, go ahead and press X.
November 20th, 2007 at 6:34 pm
hey thks it worked!
November 21st, 2007 at 7:39 am
i now downloaded the 3.72 HX-1 it was a total fake!homebrew is gone and i cant play ISo/CSO what should i do?
plz help!
November 21st, 2007 at 9:50 am
just upgraded with your 3.52 M33-4 guide works fine .now i wan’t to upgrade to 3.71 M33 but the M33 recovery menu won’t load it just goes to the reg. menu. it worked at the end of the end of the last guide. but now it won’t. What am i doing wrong? i am holding the Right Trigger button and turning on the switch. HELP!!!
November 21st, 2007 at 12:29 pm
@Jurvis: You can always downgrade again. Stop tinkering with your PSPs if you don’t know what you are doing.
@Zantra: The recovery menu should work. Shutdown fully your PSP and try it again.
November 21st, 2007 at 1:12 pm
erm but i know we nid the lumines umd game to downgrade and i dont have the pandora battery too now what should i do?
November 21st, 2007 at 10:56 pm
[...] DONE Look here: Stylemo Blog Archive Install 3.71 M33 on Your PSP in 4 Easy Steps Thats for 3.71 M33, and is clear instructions as i used it to upgrade mine. Yeah custom firmwares [...]
November 23rd, 2007 at 12:20 am
Hey guys i finally got the 3.71 m33 on my psp, now can someone tell me where should i put the games in the psp. where do i download the games
cheers
November 23rd, 2007 at 7:16 am
Were do i place the ISO’s now that i am at 3.71?
November 25th, 2007 at 4:04 am
[...] Stylemo Blog Archive Install 3.71 M33 on Your PSP in 4 Easy Steps Thats to upgrade to 3.71 M33, you need 3.52 M33 first, the link is in there. You can upgrade from 1.50 so the instructions are the same for both. Kev __________________ Upgrading - Downgrading - Unbricking (Pandora Battery)^^Click My Sig^^ [...]