Introduction: How to Your Custom Firmware MOD Your PSP

Picture of How to  Your Custom Firmware MOD Your PSP

In this instructable I will show you how to create a pandora battery, magic memory stick and, the installation process! I will also show you how to convert your Pandora battery back to a normal battery! Video Included !

-First of all your going to need a PSP (I am using a slim)
-A SONY battery (other brands dont function the same way)
-A Memory Stick (1gb -4gb)
- 7-ZIP (YAY Open Source) ...... or winrar....
-Iced Tea ?

-Utility Knife

Step 1: Making the "Magic" Memory Stick !

Picture of Making the "Magic" Memory Stick !

Ok lets get started ! First you need a couple of files. Rains MMS Maker , And a 5.00.pbp (A SONY Update File). First We Must extract both Folders,Then Rename the EBOOT.pbp to 500.pbp and place it in the Rains MMS Folder.

Connect your psp via USB to Your PC !
Okay Now Open Up RAINS MMS, Select Your PSP's drive letter, Then Check off the FORMAT option , and if you want to backup you data Check the BACKUP box as well !



Step 2: Pandora Battery

Picture of Pandora Battery

You Have 2 Options Softmod (safest/ easiest) or Hardmod (Time Consuming)
Step 3 is a Hardmod, Cutting open your battery and splicing a connection.
Step 4 is a Softmod, Using software on another modded PSP to make a Pandora battery

Step 3: Pandora Battery: SLIM HARDMOD

Picture of Pandora Battery: SLIM HARDMOD

This step is "SLIM" Specific, And we can make your battery normal after !!
1 With your utility knife cut the crease in the plastic, Please don't puncture the lithium cell inside !!!. This may take 30-60 minutes.

2 Now that your inside locate the connection we need to cut ! its probably under a number mine was 19

3 Cut the connection as shown in the picture. (Don't worry we can make your battery normal after)

4 Place everything back together, and tape firmly tape it down!

5 You should have a SLIM Pandora battery


Step 4: Softmod (Slim/Phat)

Picture of Softmod (Slim/Phat)

Softmod (Slim/Phat)
Here's the catch on the softmod, you have to know someone with a PSP thats already moded !
Simply download UltraPandoraInstaller Put the files in the PSP Game Folder, Start the app on the modified PSP, Then go to battery options>Make Battery Pandora ! You now have a PANDORA battery !


Step 5: Returning Your SLIM Battery Back to NORMAL

Picture of Returning Your SLIM Battery Back to NORMAL

Simply cut the tape, and using a pencil generously score lead into the crease you cut , Tape it back together and EUREKA !

Note If you don't hold the "L" button on boot it will automatically start your PSP in normal mode !

Step 6: Video

Picture of Video
The installing process...

Step 7: Now That I Have Modded My PSP What Are the Possibilitys ?

Picture of Now That I Have Modded My PSP What Are the Possibilitys ?

Well on your freshly modded PSP the first thing you should do is format your memory stick (with the psp). Then plug it into the computer and you should see some new folders:

seplugins - This is the plugins folder, I will explain more of this in the next step.
PSP>GAME4/5XX - This is where you put your Homebrew apps for your firmware !
PSP>GAME150 - This is where homebrew apps for 1.50 firmware goes

Step 8: Homebrew

Picture of Homebrew

Hombrew is a fancy word for "PSP Applications." (Yes I know it sounds like homemade coffee) Anyways with homebrew you can control your computer, use your PSP as a second monitor, use common IM clients, check your email, run emulators, you can run linux and windows 95 ( and mac ) with homebrew ! The list could go on for a couple of steps!

This is They have lots of homebrew for many consoles. I encourage you to find an app at QJ or PSP-HACKS and come back, then I will show you how to install an app.

Now that you have found an app (and I have refilled my glass of iced tea :)) You need to extract the .rar or .zip archive. Then dig around and check out the readme (its way easier if you learn the controls firest !) after that we have to copy the directory containing EBOOT.PBP and a bunch of other files to our memory stick in the X:>PSP>GAME directory !

Now test out your homebrew app ! If you have any problems ASK in the COMMENTS then other people can learn from your problem or mistake !

NOTE: Some apps only work on the Phat, some only on the slim, and sometime they don't work at all !

Step 9: Plugins

Plugins are used to add functionality to the psp, they can flip the screen over, play YOUR music during games/web browsing, take screen shots.... once again I could make a LONG list.

Plugins come with the .prx extension, there are three different places to use plugins VSH (XMB), in GAME, and POPS (this is for playing ps1).

For example if you wanted to listen to music durring a game you would:
Download the plugin from QJ
Extract the file
Copy music.prx to the seplugins directory
Open or create a text file called GAME.txt
Inside GAME.txt you would put "ms0:/seplugins/music.prx"
Now with your memory card inserted completly shutdown your psp (hold the power switch for 7 seconds or remove the battery and put it back in (make sure its not still pandora))
Then turn it on while holding the "R" trigger this will take you to recovery mode.
Go to >PLUGINS and make sure music.prx is (enabled)
Then go back>EXIT and you will be at your XMB. Now if you launch a game or hombrew, and press the correct button combination (mentioned in the readme) you will here music !

Plugins for XMB are listed in VSH.txt
Plugins for PSone are listed in POPS.txt
Plugins for GAME are to be listed in GAME.txt

You can have a MAX of 5 plugins in each category and a MAX of 7 in total !
Plugins for the web browser are to be used in VSH.txt

Step 10: UMDS, .ISO's, .CSO's, and .DAX and EBOOTS

Picture of UMDS, .ISO's, .CSO's, and .DAX and EBOOTS

This step explains the difference between UMD image formats, and PSP executables. First of all PSP software is either downloaded from PSNetwork or On a UMD format disc.

UMDs are simply mini DVDs in a plastic case, they can store 1.6GB of data and are non-rewriteable. So they can be ripped in .ISO format. But there is more than Just .isos there is also .csos and .dax and .jso
The difference is:

.ISO - The largest size, with the fastest loading speed, With almost NEVER any problems in the game.
.CSO - A Mid size with slightly slower loading speed (its unnoticeable) I have experienced one issue with a grand theft auto game.
.DAX - The smallest size, It is still supported but rather obsolette
.JSO - Once again a small size, but format has is no longer supported.

.CSO is the standered.

To play .isos

You can download games for free at or however you are only downloading games that you own and have the UMD disc for. right ?


Step 11: Firmwares

There are several different kinds of firmwares, including M33 which I showed you how to install in this instruct able as well as, GEN, OE, LE, HX,OMEGA, Theres more but theres only a few I want to talk about.

5.00 M33-4 - Is developed by the most popular PSP Hacker of all time (so far). It is the most common and it has support for the most available hombrew, and plugins. I Recomend this for NOOBS

5.02 GEN-A - The second most common firmware, it is a reconstructed M33 firmware, but its designed for more advanced users. It has support for everything except the CXMB plugin (there is a way to use CXMB on 5.02 however it is very complicated). It also has a built in feature to softmod pandora batteries! This is the firmware I Use, simply because it is the latest and greatest

5.02 OMEGA - This firmware isn't the most popular and its very buggy with homebrew, If you like playing your old PS1 games this firmware is "supposed" to have good support for that. (However didn't work for my PS1 games)

5.02 XFC - This firmware is once again a recompiled M33 firmware, It DOSENT support .iso or .cso playing. So if you want to use homebrew and not look like a pirate. This firmware is good for you.

M33 is the best for noobs, so unless your battery is PANDORA don't mess around with other firmwares !

Step 12: FAQ

Can I Put a Slim Battery in a PHAT Psp ?

Can I Put a Phat battery in a SLIM PSP

Can all PSP's be modded ?
NO, All Phat PSPs can be moded(1000series), The Newest Slims (2000 series) CAN'T be moded and neither Can the PSP BRITE (3000 series) !

What happens if I put a pandora battery in an unmodifiable PSP ?
Nothing, (New slims do show a light)


mrollier (author)2015-03-10

The Ultra pandora link no longer works

JacobB1 (author)2014-07-30

Lol outdated info. I have a modded PSP 3000 sitting on my desk right now. Thanks for the tutorial, though. ;)

superMacaroni (author)2012-01-07

why did you take a picture of a micro sd instead of a pro duo? lol

vishalapr (author)2011-05-30

There's an easier way
Just follow this you tube video
One download link is dead but you can type that in google search and you will get the download file(I tried it and it works perfectly,
Try it out!!!

TheNextWorldLeader (author)2011-03-02

Okay, I put the files where I need to, but it says that its corrupted. Help?

markie (author)2011-01-25

it work`s great no more game buying ;) LOL

Coliflower (author)2010-10-12

Nice 'ible, 5 stars.

My brother's PSP was modded with M33, by a friend. I'm not sure how he did it, but, if it helps, he already had 3 batteries because we had three PSP's for him to mod.

I recently downloaded an update from Sony and didn't realize it changed the FW, so how do I re-install it? Everything else is already set, but the CFW doesn't support his ISO's.


bears0 (author)2010-09-13


bears0 (author)2010-09-11

thanks sooooooooooooo much ive been trying to get this to work for a very long time :D

GENERALCHAOS (author)2010-09-09


larslovespeace (author)2010-08-04

I have winrar and both files but when I go to extract theRaun mms maker it doesnt show up in the folder i placed it in there was an eboot.pbp and I renamed that to 500.pbp but other than that there was a readme file telling me to go to a website? any help?

Okay I have the folder with 500.bpb but how to I do the format stick and backup files?

Se1f_Destruct (author)2010-06-07

I love this instructable, i did it myself. It works on a TA-83 mobo, and I can go back all the way to 3.71 M33. The problem i have is that people who use CFW just to pirate (download iso's of games) games INFURIATES ME. It ruins it for all of us because that is the reason Sony does not let us create our own apps for the psp.

Here is what Dark_AleX has to say:
"Everyone has the right to do what they want with their own hardware. Piracy does upset me, and because what we are doing opens the way to piracy it's harder to justify it morally. But our stance on piracy is clear, and we hope to be role models. Sony have never been in touch with me, so I am confident that what we are doing is legal."

I encourage CFW too, but not piracy! It ruins it for all of us!

dunnos (author)2009-01-14

I am SO going to do this... one question: If i cut the line (lol) and put the battery in my phat is there ANY chance ATT ALL that my psp will explode or break in any other matter? (i am going to play the nes version of mario on my psp then !! yay) PS: Now that i think of it i have another question: -throughout the process is the ANY chance AT ALL that my psp breaks? (the psp not a component like the battery of the psp)

Se1f_Destruct (author)dunnos2010-06-07

It is hard to break, lol.

littlechef37 (author)dunnos2009-01-15

no your PSP will not explode or break, as long as you use a PHAT battery your covered!.... NO your psp CANNOT just break... unless a chip fries (not caused by modding) then the only way to break your PSP is to physically break it

HellifiKnow94 (author)2009-06-07

This works on the 3000 series right?

You can try it, i dont think so...

ReCreate (author)HellifiKnow942009-06-19


foxtrot4697 (author)2009-06-07

guys! holy snap!!! it works without the pandoras battery aswell, but not on OFW 5.50 yet. remember to watch both parts tho

Thats the TIFF exploit.

daiatlus79 (author)foxtrot46972009-07-06

i did that to my PSP2001 and it works .. but it took a few attempts to do takes a few attempts for the exploit to take to the psp! but when it works it all worth it!! i was not much of a fan of the psp til someone sold me one for 60 bucks and i knew i could hack it.. now i take it with me where ever i go! :D

foxtrot4697 (author)daiatlus792009-07-09

lol, it was takin to long for the people to make a chickhen for 5.50 OFW so my uncle knew a guy who could hard mod it for only 20$ lol

daiatlus79 (author)foxtrot46972009-07-13

pandora will not work for all psp's. if that is the hard mod you are referring to, as no one puts mod chips in a psp.

foxtrot4697 (author)daiatlus792009-07-13

err yeah pandora thingie

datman345 (author)2009-10-03


Se1f_Destruct (author)datman3452010-06-07

If you are running 5.00 M33, get Legacy software loader. It runs 1.5 games on 5.00 and is incredibly functional. It crashes under GEN though. Remember to put games like: %GAMENAMEHERE and GAMENAMEHERE in the GAME150 folder!

paperclip32 (author)datman3452009-10-18

 that means you'll either have to re-download it or its just plain sucks and cant be installed

willow2x (author)2009-12-08

hey mr, is this guide ok to use with the phat? ive read through but theres no clarification.

im not sure which kind of phat i have... i remember reading a guide a while back that said to check the pcb behind the umd tray... but i cant see any numbers just the metal bit of the umd tray

id greatly appriciate you gettin back to me man =]

littlechef37 (author)willow2x2009-12-09

yes a phat one can be moded, just make sure your pandoras battery is phat aswell, never put a slim battery in a phat psp

LOL, i put my default slim battery from a 2000 TA-083 in a 1000, it worked! It still does.

hi111 (author)2010-01-29

 can i un softmod my battery???

Se1f_Destruct (author)hi1112010-06-07

You CAN unsoftmod your battery I recommend "PSP Tool" to do so, it is very safe and user friendly.

L0rd0fferret (author)2009-05-21

On my PSP (i have the same exact one as yours) it says the data is corrupted. i need the ultra pandora battery maker to work but it doesnt to run windows 95

Think you just need to get a new computer! LOL I do not know anyone that is still running '95. The oldest windows system I have even ever used is 98 and 98SE.

Cartuner55 (author)Flyinseamnky2009-09-30

my dad still runs 3.1

Chief7Rings (author)Cartuner552010-05-12

 Aw, that is awsome!

windows 95 dosent support USB out of the box does it ?

daiatlus79 (author)littlechef372009-07-06

pfft nope and i do not recommend any third party applications! i recommend at least upgrading to 98! and as well i recommend using USB 2.0 (not 1.1 like the first release was)

L0rd0fferret (author)daiatlus792009-09-25

My pc is running Xp pro sp3 - i want to run 95 on my psp

plasticpopcorn4 (author)2010-05-12

for the Gen firmware how do you load it to the psp? is it the same as the m33?

Se1f_Destruct (author)2010-01-02

The PSP 1000 can be modded, the 2000 CAN also be modded, (ive done it), but the 3000 CAN NOT BE MODDED!

Just to clear things up. : )

Fashim (author)Se1f_Destruct2010-01-09

The PSP 3000 or Brite can be Modded now! <- Not sure if this link is Usable cause i just wrote it but if it isint just google Psp Hacks =).

det1021 (author)Fashim2010-04-19

yes it can be. but only partial hacking. you cannot shut it down for it will go back to official firmware if you shut it down

det1021 (author)Se1f_Destruct2010-04-19

yup 2000 can be modded but first check your mobo cause there's one psp 2000 mobo that cannot be fully hacked "TA-088v3 motherboard". it can only be partially hacked together with the PSP 3000 using chikHen R2 and 5.03 GEN-C for TA-088v3 and PSP 3000.

coolpizzadude (author)2010-04-09

Will modding my psp make the web browser faster.

allenmt (author)2010-01-27

 how big is the risk installing chicken on a psp 3000

Ryan.Thompson (author)2009-12-29

lol, i broke my battery. If you are an amateur like me head to They have pandora battery's and magic memory sticks. 

Geniusdude (author)2009-12-21

 so i dont understand... i cant use it with my PSP 3000 or 3000? and when u boot it after installing, do you make it un-pandora and without holding L? Please help

drocorona (author)2009-11-01

I cannot open the program .. is there any other way to make pandora battery with softmod??

About This Instructable




Bio: I am starting to dislike the profile updater......After rentering all the information I wanted to type in here 4 times I gave up !
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