GUIDE: Universal Unbricker V3 Using Official Firmware FAT/SLIM PSP.

I've heard that Genuine Sony Pro Duos AND SanDisk will work so give it a try before you bail out. As they say, no harm in trying! If using larrylje's EasyInstaller gives you trouble, btw you MUST see the last screen in the "Making a Magic Memory Stick" section of his guide for it to work otherwise, follow this guide.

 

Ok, so I've read through a lot of this thread and other threads and have a couple of questions.

At the beginning of the thread it says this can be done on a slim psp. Other threads I've read said you need a fat psp to hack a slim one. I just got a slim psp and have OFW 3.95 on it. Can I follow this guide to get custom firmware on it without needing anything else?

If I do get custom firmware on it, can I still play my original UMDs and things I've downloaded from the playstation store? I think it's cool to be able to have custom firmware, but I don't want it to prevent me from doing other things on my psp.

Thanks in advance.

 

yeah... i agree. I haven't come this far to bail out now! although i need to try to create the MMS on my xp computer! tried on my vista machine and couldn't figure out how to finish it?

 

AFAIK the only reason you would need a Phat would be to softmod a Pandora Battery. If you've got one already or a Datel Tool battery then you don't need the Phat.

The PSP will work as per normal the only difference being you have all the additiional features that custom firmware offers.

 

Thanks obikenobi.
I've read a lot through this thread of people that have been successful and people that have had problems. I think I'll give it a shot and see what happens.

 

i know now how to get 3.71m33 i just need to buy the materials. i dont understand umd iso mode and m33 driver. wat is that? is there a pic or youtube video that will show me wat that is? sry this is late.

 

my psp slim 2003 screen broken can any body help me where would i buy new cheap one thnaks

 

This has nothing to do with this guide. Please start your own thread and don't post unrelated questions here. There is enough post that users have to go through.

 

thanks to Larry and all those who put this universal unbricker together!!
Thanks for the NEWBIE friendly how-to as well!! Great job...3.71 m33 v4 is now up and running on my slim, now I can't wait to see what it can really do!!!
i will keep you guys posted!!

 

I've got a Fat PSP and Fat battery, came with the PSP.
Ok. So I'm pretty sure my hardwired pandora's battery is good, because I get a blank black screen with a green power light when I put it in. Then if I also use option2 : Install booster boot code, it powers up just fine. Although if I hold down R-trigger it still just boots up like normal.

So I'm pretty sure it's my MS stick.

When using this app, I never get this screen.


It goes straight to credits after copying the files.

With another very similar app, not 'V3', it says 'Check free reserved sector: to small sector' (or something like that)instead of: 'check free reserved sector: OK' at the end. With this other similar app I also get an error after it copies the files saying: Can't open: h:/msipl.bin
After that I get the credit screen.

If someone could just confirm that this definitely is NOT supposed to happen I will buy another memory stick and try it. Although I am using an official 1GB Sony Pro Duo that I got from Dick Smiths (reliable large retail store, wouldn't sell fakes).

Any help would be greatly appreciated.

 

Ok I got it working finally!!

All I did was try the installer on my GF laptop, and it worked first time.

It's strange as my PC and her laptop are both running XP Pro, which I installed myself form the same CD. Oh well, it's working now so I don't really care.

But for everyone else having problems, just try it on another PC or laptop.

 

hey i have made the mms and got the datel tool but after im on custom firm ware can i formant my ms and stay in cfw?

 

Yes, all its doing is writing stuff from the mms to the actual PSP. you can then format the mms.

 

Hey i did exactly what the guide said and my PSP said "Game couldn't be started" did i do something wrong i have Firmware 3.90.

 

yeah im getting the same error....dont get me wrong i stayed trying this for a whole day and atleast i got this far...i tried the universal unbricker on this other site and it didnt convert the files properly but this got me atleast to download the 3.71 m33. i ever cracked open my own battery to make a jigkick battery which i found out wasnt that hard. im just stuck when i get to my memory stick and i try to do the mux 2.0 update. it says "the game copuld not get started (80020148) and i think it might be because i cant change my battery back to normal...what i was gonna do is get my other battery from my boy who broke the screen of his psp instead of doing it with the pandora one and follow the instructions all the way threw. will this work or do i have a bigger problem on my hand than what i thought

 

Make sure you are on 3.71 M33-2. You can double check by going to System Settings then System Information. Make sure it says 3.71 M33-2 under System Software.

 

now id it just says 3.17 what should i do?

 

nevermind answered my own question you the man brotha

 

Hey, I'd just like to ask a few questions if it's ok. I've never did anything like this before and I just got my PSP so I'm a scared of bricking it. Hope you guys can give me some advice!

So I just got a Slim silver PSP, a european one, if there's even a difference. I have version 3.95 of the system software. Can I use this guide to install the custom firmware ok on my PSP? I don't need to do anything besides follow this guide to go from the official firmware to the homebrew firmware right?

Also, which version should I install? 3.80 M33, 3.90 M33 or 3.71 M33-4? Does it make a difference with the compatibility of homebrew apps and stuff? Which one would you guys recommend?

Also do I need to download other stuff to run homebrew apps after I install this? If so, what?

Thanks in advance you guys My datel battery tool should arrive tomorrow so I'm kind of excited (and nervous )

 

I made the pandoa battery and did eerything until the mux update. I checked the sysem info and it said that im still on official firmware. Plese tell me if i did anything wrong.