PS4 News on Facebook! PS4 News on Twitter! PS4 News on YouTube! PS4 News RSS Feed!

Home PS4 News - Latest PlayStation 4 and PS3 News

January 5, 2011 // 6:40 am - Today PlayStation 3 developer KaKaRoToKS has released the first PS3 Custom Firmware alongside a video of it in action below!

With KaKaRoToKS PlayStation 3 Custom Firmware, users can now run PS3 homebrew 3.55 signed packages (currently doesn't support PS3 game back-ups) via 'Install Package Files' on non-JailBroken PS3 consoles and access PSN for the moment.

Download: PS3Tools / PS3UPDAT.355Cfw.KaKaRoTo-1.3.pup (Removed app_home from XMB) / PS3UPDAT.355Cfw.KaKaRoTo-1.2.pup (More game_tool2.xml Fixes) / PS3UPDAT.355Cfw.KaKaRoTo-1.2.pup (Mirror) / PS3UPDAT.341Cfw.KaKaRoTo-1.2.pup / PS3UPDAT.355Cfw.KaKaRoTo-1.1.pup (Fixes Missing Game Data XMB Icons) / PS3UPDAT.355Cfw.KaKaRoTo.pup / PS3UPDAT.355Cfw.KaKaRoTo.pup (Mirror) / PS3UPDAT.341Cfw.KaKaRoTo.pup / PS3UPDAT.341Cfw.KaKaRoTo.pup (Mirror) / PS3 Category Game XMLs / GIT / PS3 Keys / PS3Keys GIT

Note: DO NOT try to install this from the service mode, it might brick your console, install it normally from the normal menu or the recovery menu. Regarding PS3 back-ups with CFW, from IRC: the payload currently remaps the Blu-ray to USB or internal if a back-up manager calls for it meaning don't expect support for them unless someone else adds it.

Additionally, Waninkoko has now updated FWTool for PS3 Firmware (not application) PKG files and it now decrypts, encrypts and signs properly.

To quote from his site: Great news! Thanks to the tools made by the fail0verflow team (and thanks to sven in particular for his work on the pkg/unpkg tools), the first “Custom Firmware” is now available for the PS3!

I see a lot of questions coming up really fast on my Twitter account, so here are the basic things you need to know :

Because of legal/copyright issues, I will not provide the custom firmware to anyone, however, I’ve made available all the tools necessary to transform an Official firmware update, into a custom one, just grab my ps3utils repository from github, compile, then run :


This will take the official firmware, unpack it, modify it, then repack it correctly (requires you to install ps3tools).

This requires Linux of course, but I’m sure others will do it for the masses and illegally release those files somewhere.

The advantage here is that you can do it for any firmware, if you want to keep version 3.41, then give it the 3.41 update, if you are on 3.55 already and can’t downgrade, then run the script on the official 3.55 firmware and it will create a modified 3.55 firmware.

You can put the file in a USB drive under the filename “PS3/UPDATE/PS3UPDAT.PUP” and then go to system update in the XMB, and it will allow you to install the update (even if you’re already on 3.55).

People are asking what are the features of this firmware, it’s simple, all it does is to add those “Install Package Files” options to the Game section of the XMB. It doesn’t do anything else!

This firmware will not allow you to run the currently available homebrew application. Once the homebrew developers re-package their files in a ‘retail’ .pkg format with signed executable, then it will work (this should be coming soon thanks to the work of the fail0verflow team).

Since the kernel is left unmodified, this means that this custom firmware is really meant for future homebrew installation, and it will not allow piracy. I plan on keeping it that way.

This is just the first attempt at custom firmware, and it only contains a minor modification to allow you to install pkg files directly, eventually we’ll get some more options added to it in the future. This is just starting to get interesting!

p.s: Thanks to everyone who helped make this possible!


Brief guide:

1. Download ps3 utilities and ps3 tools from github / team fail0verflow:

git clone

cd ps3utils
cd ..
git clone git://
cd ps3tools
cp pkg unpkg ../ps3utils

2. Grab the PS3 encryption/decryption/signing keys from github:

git clone ~/.ps3

3. Download PS3 3.55 (or whatever official firmware PUP)
4. Extract and copy “PS3UPDAT.PUP” to the “ps3utils” directory
5. Create the PS3 Custom Firmware (CFW) from the original/official update (OFW):

cd ps3utils

6. Copy and rename CFW.PUP to a USB storage device keeping this directory structure in mind: /PS3/UPDATE/PS3UPDAT.PUP
7. Connect that USB device to your PS3 and install from Settings -> System Update

If you’re currently running 3.41 (or earlier) you can either remain there and create a specific CFW PUP for that version, or you can upgrade to a later PS3 firmware version, like 3.55 for example. It’s whatever original PUP file you use — only you cannot flash a version lower than the current version installed on your PS3.

So if you’re already at 3.55, where you’re unable to downgrade, then for the moment you have no other choice but CFW (or OFW) 3.55. 3.41 on the other hand: upgrade or create CFW 3.41 and for the interim you’re still able to jailbreak and run unsigned homebrew. Other things to note:

1. This CFW does not modify the kernel in any way, meaning all the current compiled homebrew out there will not install or run using “Install Package Files” from the XMB.
2. With the above point in mind you should know this CFW does not enable backups - straight homebrew.
3. Current PS3 homebrew and new homebrew will need to be “retail” packaged and signed; that’ll happen with fail0verflow's tools.
4. This is only the beginning.

Video: KaKaRoToKS Releases First PS3 Custom Firmware!

Video: KaKaRoToKS Releases First PS3 Custom Firmware!

Follow us on Twitter, Facebook and drop by the PS3 Hacks and PS3 CFW forums for the latest PlayStation 3 scene and PS4 Hacks & JailBreak updates with PlayStation 4 homebrew.

#173 - iUnknown - January 6, 2011 // 7:00 pm
iUnknown's Avatar
I think some are misunderstanding the need for a JB in the first place. Picture a car, the only way to start the car, is for you to have the "real" key. If you don't have the "real" key, then you need to circumvent the ignition to be able to get the car to start. That's what the equivalent of Jailbreaking is.

But if you have the "real" key now and can make countless copies, then there's no point in you having to circumvent the ignition (ie JBing), you can go straight to starting the car with the real key. The real key negates any necessity to JB, the same way that you wouldn't go hotwire your car if you have they keys to begin with. The only catch, of course, is that everyone now needs a copy of the "real" key, which should happen with anything else going forward.

#172 - Stevolab - January 6, 2011 // 5:20 pm
Stevolab's Avatar
Quote Originally Posted by RevCube View Post
I'm sick of people talking about sony getting what they deserve if everyone hates sony so much why did you get a PS3? if you dont like it and hate sony then go play wii or 360. Sick of people trying to justify running bootleg games.

Everyone knows that this is 90% about piracy and 10% other reasons, sick of the sugar coating talkin about sony is getting what they deserve, ok so they took away linux SO WHAT, i'm pretty sure that 90% of the people talkin about sony getting what they deserve even know how to use linux, what a bunch a BS. Sony RULZ otherwise you wouldn't be on here checking on how to play their awsome games for free.

they are awesome... awesomely expensive! i don't care about free games but i want to get my moneys worth so i buy them back them up and keep on playing after trade in... they are still getting some of my money just not as much and i don't know about anyone else but i like my money... don't really like to part with it if i can help it. if that means screwing over a multi-million dollar company for a couple of bucks then oh well!!!

#171 - JNCbmhs - January 6, 2011 // 1:58 pm
JNCbmhs's Avatar
i'm signing out, let me know when backup manager is signed.


#170 - Ihatecompvir - January 6, 2011 // 1:49 pm
Ihatecompvir's Avatar
Wait, so we cannot create a retail PKG that is signed using tools yet?

I don't care about running homebrew atm, I have more in mind (custom Rock Band songs, mainly. Those could be put into a retail pkg and installed)

#169 - anulu82 - January 6, 2011 // 1:42 pm
anulu82's Avatar
Quote Originally Posted by scph2cech View Post
i think somebody has to make a custom 3.56 firmware with jailbreak enable. Because 3.55 won't let you downgrade but i am sure it will update to a higher version, so we just need to make a custom update, a fake 3.56 fw.

the main issue with this idea is that we don't know where the real version number is stored. the version.txt contains the number what is shown in system properties, it is not the "real" ver of the FW

#168 - JNCbmhs - January 6, 2011 // 1:38 pm
JNCbmhs's Avatar
Quote Originally Posted by scph2cech View Post
i think somebody has to make a custom 3.56 firmware with jailbreak enable. Because 3.55 won't let you downgrade but i am sure it will update to a higher version, so we just need to make a custom update, a fake 3.56 fw.

haha, this made my day..

#167 - Bamber - January 6, 2011 // 1:36 pm
Bamber's Avatar
Geohot's released a couple of selfs that appear to be signed properly (although they run through the 'downgrade mode' enabled by a usb dongle).

Either he can sign selfs, or downgrade mode doesn't require signing (not likely!).

I wonder if he'll continue working on the PS3 now there's a few other devs at (or close to!) his level to 'compete' with?

#166 - scph2cech - January 6, 2011 // 1:24 pm
scph2cech's Avatar
i think somebody has to make a custom 3.56 firmware with jailbreak enable. Because 3.55 won't let you downgrade but i am sure it will update to a higher version, so we just need to make a custom update, a fake 3.56 fw.

#165 - deank - January 6, 2011 // 1:05 pm
deank's Avatar
There are tools to sign/repack firmware packages and PUP files.

There are no working tools to sign/pack application SELFS (EBOOT.BIN) and application installers (PKG).

Whether there is someone withholding 'working tools' or not - one may only guess.


#164 - adaption - January 6, 2011 // 12:41 pm
adaption's Avatar
Just so that i get it right, at the time no one has the ability to sign and/or repack apps?

Or is it just, that for example someone like kakaroto already has the tools, or the knowledge or whatever to do it, but they won't release it due their mentally disordered fear of piracy?

Would be great if someone could enlighten me, because i've read the whole thread but i can't see any clear information if it's possible or not.