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February 13, 2011 // 9:27 pm - Just under two weeks ago PlayStation 3 hacker KaKaRoToKS first announced the PS3 Modified Firmware Project, and today PS3MFW Builder v0.1 is released.

Download: PS3MFW Builder v0.1 / PS3MFW Builder v0.1 (Windows) / PS3MFW Builder v0.1 (MAC OS X) / PS3Tools / PS3Keys

From the included ReadMe file, to quote: INTRODUCTION

For years, the security system of PS3 remained unbreached because Sony had a very good defense mechanism: Consumers could use it for more than just gaming by installing Linux via the "Other OS" feature.

Therefore there was little motivation for security researchers to investigate the PS3. However, then Sony (or SCE, SCEA, SCEE or whatever, we aren't exactly sure what is going on there anymore) made an unprecedented move:

Not only did they introduce a new PS3 model that no longer allowed the installation of an Other OS, but with a firmware "upgrade" they removed it from previously sold consoles.

While removing advertised features from a product (several years after its purchase!) is blatantly unlawful, having highly paid lawyers apparently allows you to get away with it- in a legal sense.

But when the law fails to protect the people, then some of those people, being clever and resourceful, help themselves. And that is what happened here. Sony sunk its own battleship.

PS3MFW is the next step in the process of returning to consumers control over their own hardware. Your PS3 belongs to you. You didn't lease it, and you signed no contract when you purchased it. It is your right to use it however you choose. It is your responsibility to do so within the legal boundaries.

PS3MFW allows you to tailor your PS3′s firmware to your specific needs, giving you a level of control you previously lacked. PS3MFW is open source. That means it is completely transparent, and anyone with the necessary programming knowledge can help to improve it and create new plugin tasks.

It is with great pleasure and joy that we are now able to present you with the first public release of PS3MFW Builder. A lot of hard work went into this during the past five weeks, by some incredibly dedicated and inspired people. We would like to thank everyone who contributed, the people who got this project underway, and those who did all the programming and testing.

PS3MFW Builder v0.1 has been successfully tested on all major PS3 hardware revisions, and in conjunction with OFW 3.10 - 3.55. It is NOT compatible with OFW 3.56.

Remember that this is only the very first release of PS3MFW Builder, version 0.1. With your support and feedback, we intend to create the definitive PS3 firmware solution that makes all other closed-source custom firmwares obsolete.

PS3MFW Builder is not distributed with any program code copyrighted by third parties.

KevinButler, you sunk your own battleship.


To use PS3MFW Builder, the following is needed:

-The latest version of the f0 tools

-Tcl/Tk 8.5 (

PS3MFW Builder v0.1 - PS3 Modified Firmware Builder Arrives

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#31 - barrybarryk - February 14, 2011 // 7:38 am
barrybarryk's Avatar
yeah that just has the cert already copied, the rest of the tutorial still applies.

#30 - DaedalusMinion - February 14, 2011 // 7:15 am
DaedalusMinion's Avatar
^ It won't work.

Use the SSL Certifcate hack to log into PSN.

#29 - Xalies - February 14, 2011 // 7:03 am
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Would setting the PUP version string to 3.56 help in anyway to access PSN or is this kinda spoofing fixed.

#28 - madmax69 - February 14, 2011 // 6:29 am
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Great tool now gives people the choice to modify there own firmwares to meet there needs. The biggest choice they have now is run MFW 3.55, or 3.56 OFW to have PSN access.

A whole new direction for the scene looking forward to seeing were it leads us. much respect to the MFW team , first of many exciting releases i suspect.

#27 - proskopina - February 14, 2011 // 4:54 am
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thanks devs for the great tool!! worked for me!!!

#26 - SHAKCEYA - February 14, 2011 // 4:40 am
ok i updated from xmb it didn't brick multiman and rogero working fine.

#25 - Jes03 - February 14, 2011 // 4:19 am
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I'm wondering why devs don't compare firmwares and see the difference and replace it? EG: compare OFW 3.15 and 3.21 and see whats removed and replace it back in.

There will be a setting in the settings xmb for OtherOS and some behind the scenes settings for bootup but it shouldn't be too hard. Compare 3.15 and 3.21 (Is that the next one?) as all they did was remove OtherOS so there is only 1 thing missing in 3.21. Find that, and make it into a PKG so it can go into any firmware...

Other than that I doubt it. There is Linux for PS3 via AsbestOS and it works and about as fast as OtherOS Linux so its just about as good.

#24 - TSX1 - February 14, 2011 // 4:12 am
TSX1's Avatar
Thanks. +Rep

Is there any chance that in some future version we might be able to add "Other OS" feature to newer FW versions than 3.15?

#23 - SHAKCEYA - February 14, 2011 // 4:07 am
ok it worked, i will install it and till the result.

#22 - Osirisx - February 14, 2011 // 3:38 am
Osirisx's Avatar
very useful app, but do we know when support for 3.56 will available?