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PS3MFW Builder 1.0.0 (Our MFW 1.0.0) Build 2.0.0 is Released

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65w ago - Following up on the previous updates, PlayStation 3 developers RedDot-3ND7355 and B7U3 C50SS have now released PS3MFW (PS3 Modified Firmware) Builder 1.0.0 Build 2.0.0 followed by v0.2.0.2 and Update 3 dubbed Our MFW 1.0.0 with an Installer followed by v0.2.6.0 with the changes outlined below.

Download: PS3MFW Builder 1.0.0 (Our MFW 1.0.0) Build 2.0.0 (Full) / PS3MFW Builder 1.0.0 (Our MFW 1.0.0) Build 2.0.0 (Update) / GIT / lv2_kernel.self (Hermes stuff inside) by Smhabib / spoof_rebug_mode.zip / spoof_rebug_mode.zip (Updated) (Fixed it now to work with new routines) by haxxxen / Install Our MFW Builder.exe (Build / Install Our MFW Builder.exe (Update 3) / PS3MFW Builder v1 Installer (Build by RedDot-3ND7355 via B7U3 C50SS / Our MFW 1.0.0.rar (PS3MFW Updated for 4.65) by haz367 / 4.66_NO-FSM_patch.bin.zip by littlebalup / Our_MFW_1.0.0_Build_0.2.6.0_Update.zip (PS3MFW Updated for 4.66) / Latest PS3 MFW Builder Update by RedDot-3ND7355 / PS3MFW-master.rar / Playerkp420_4.66_CFW-v1.00_PS3UPDAT.PUP (196 MB - MD5: BD3752C037DB9F786AA445CD862C3675) / Playerkp420_4.70_MFW_PS3UPDAT.PUP (196.41 MB - MD5: 8C21E25AB3F30CA5C3C9E8041ADBDC12) by playerkp420

To quote: Hey Everyone! Its me RedDot and i'm back with my team again to release you this new build of PS3MFW Builder 1.0.0!

We managed to find all the bugs about the repack/unpack/keys/tasks! Just follow them as respected and everything WILL be fine.

This is TRULY stable, and if you patch the right features you will NOT get brick/or whatsoever... I also recommend you have a minimum requirement of knowledge on modding

I hope the video helped A LOT. Credits to all the dev's that made this project possible and finished supposedly. But of course we will maybe continue to add features if new updates are released! So keep an eye on that updater.


Original dev's

Newer Version dev's
->Anonymous Developers
->B7U3 C50SS

All people that helped A LOT!
->RazorX (For sum tasks & updater)
->Haz367 (For pin-pointing problems & many tasks)
->Habib (For allowing us to use his patterns for tasks)
->Naewhert (For his tools)
->toolboy2012 (For sharing his awesome work with us)
->Arachetous (For a special task)
->And all other people that i may had forgotten :P

List of all features for 4.xx

Patch to allow running of unsigned app's
Patch to add ReactPSN online/offline
Patch to allow Debug pkg installation
Patch SysValue's (PS2 Related)
Patch to fix removing act.dat on boot!
Patch for ingame screenshots!
Patch RSOD Bypass!

Patch lv0 ldr's
Patch lv0 CoreOS ECDSA Check&Descrambling of LV1LDR!
Patch lv0 using Rebug/ITA DEX!
Patch lv0 for Cobra Features!
Patch lv1 for many features!
Patch lv1 Mmap out!

Patch lv2 for peek&poke
Patch lv2 for POC! (only 4.50)
Patch lv2 for hermes payload!
Patch lv2 for syscalls!
Patch lv2 for QA Flag!
And many more!

Patch nas_plugin for debug pkg's&installation of retail pkg's
Patch the core_os spu's&spp
Patch default.spp for otheros! (must include otheros of lv1!)
Patch XMB for IPF&APPHOME! (includes xmb plugin mods)
Patch PUP for Cobra files! OMG
And there is a lot more options in the builder

From haz367 comes PS3MFW Builder Incl Cobracrapper 446/453 Task set for 446 Cobra MFW.

Download: Our_MFW_1.0.0.rar

PS: updated oldfart-lv0 task to incl Rebug-ITA/DEX style... and Cobra compatible lv0 patching: pastie.org/8580065

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Update: From RedDot-3ND7355: It would seem that i forgot to put create_tar2 instead of "create_tar" for the modify_devflash_files2 My bad.. there isn't any problem in the task itself... its in the base!

Now I updated the builder! Build: now out.

From tiefputin2: From ps3dev channel on efnet, if someone can make a tcl:

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It should make sfo editing for remote play obsolete... and make disc games without sfo-enabled remote play-attribute flag finally work

From toolboy2012: Hi All, OK, fixes are done for the tcl version of the 'patch_file{}' and 'patch_file_multi{}' routines (called by the "patch_elf{}" func)

....so as I was saying before, you can use the modified function as is, if you don't need to mask any bytes/bits off, and the speed will not be changed..if anything the way I fixed it up is a bit faster, as I read the entire file into memory, then do the data searches, as the routine as it was before, read in '1' byte at a time from the file, so the routine was constantly accessing the hard drive non-stop until the function completed....

So when calling 'patch_elf{}' now, you just need to set a local var named 'mask' to either 0 or "" if not using it, as it's a required param to the function. If you need to actually set a mask, then actually set the mask string to the mask value....

As I said, when using the 'mask', the search will be much much slower, not too bad on small files, but for large files like the 'lv2_kernel' (3MB), the search takes 3mins. or more for each pattern match...

So I'm going to show a quick example below, for those may be a bit confused how this works:

1) Going to show an example for the patch "SysCall36 4.xx CFW part 2/3" (as in my scripts, part 2/3 & 3/3 I used the MASK setup)

2) In this example, I'm showing you the IDA disassem. for this section of the 'lv2_kernel' where the part 2/3 & 3/3 patches are,
comparing the disassem. for OFW 3.55, 4.46, & 4.55...

3) at the very bottom of this example, you can see the 3 'search strings', of the op-code patterns corresponding to each OFW version... when you look at them lined up above each other, you can see the op-codes that are identical, and where the differences are...

4) You can then look at the last string which is the 'mask', the "\xFF" byte in the real search will be AND'd with it's corresponding op-code byte, so in other words, if you need to 'ignore' where the differences are, then set those bytes or individual bits, in the mask, to "0"... hopefully this makes sense? if not, I can try to post another example?

(like I said, I'm working on a new 'patchtool.exe' now, hopefull this week it will be done, which should tremendously speed up our binary 'patching' time, makes much more sense to search/patch with a tool, rather than doing all that pattern matching/searching in TCL, as this stuff is where TCL is tremendously slow!)

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NOTE: When ever you need to USE a MASK, the size of the 'search' and 'mask patterns MUST be exact multiples of 4-bytes (32-bits), in order to make that search as FAST as I could. So you have to count the bytes in any of your search strings where you want to use the mask... if you need to add bytes on to make it an even amount, but don't actually want those added bytes to be 'included in the pattern match, then just make them any value, and set their corresponding values in the MASK to be '\x00'!!

i.e., in the example I showed above, the 'search' and 'mask' strings are 16-bytes in total length (ie 4 total count of '4-byte' chunks).

From haz367: whop, that's a pro way right there... it wasn't a difficult one, the updated 455 sysc36 part3,4 (from Reddot's fork) to find manually this time, it won't beat your way of doing it tho... hmm that IDA is interesting

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Awesome work toolboy!

From haxxxen: Just another thanks to you guys and toolboy2012, for making builder working again. it really works smoothly though i am using a modified version without cos auto repack and with selfrebuilder. maybe i will get isorebuilder also working next...

If i can recall right, there was already a demand of it, but after this forced latest ofw release i've took the chance and created once again a rebug spoofer update task. it will only update the spoofer for rebug mode and it will work for all versions 3.55.4 - 4.46.1.

Only problem is, it will not work as it is for the updated official ps3mfw builder and gives this "cannot find blabla.self.self" error. with my builder mod and selfrebuilder it works great, so maybe you can take a look at it RedDot-3ND7355 to make it fully working with your updated one and scetool. i have run it on all rebug versions, but only have flashed 4.21.2, so no guarantee for the others, but they also should work fine.

The task itself makes usage of the updated jailbait spoof task from euss, so it will spoof every entry in version.txt/index.dat and it will not update upl.xml. all other notes are remarked in the task, so it is selfexplanatory. it only includes the latest 4.55 version and a fun spoof of mine and can easily be updated.

And here my log for 4.46.1 (debug enabled): http://www.ps4news.com/forums/attachment.php?attachmentid=37180

Just a minor note on this, if you modify version.txt file with ps3mfw builder, the encoding changes to dos instead of unix. it works fine this way, but maybe there is a possibility to leave the encoding unchanged? ahh, and please ignore this rebug mode drex version. i have left it and it is only for personal usage...

Found now the problem. seems rebug have confused some things in their latest builds 4.41 and 4.46 some different question, but anybody knows what this secrect On/Off option from sysinfo is? it was medo from cmp who told me about it some time ago, but he also didn't know what it does. to get it, go under settings into system-settings->systeminformation hold L1+L2+R1+R2 and press select. there comes a On/Off message and it is turned off after every reboot.

Update #2: PS3MFW Builder 1.0.0 (Build Official Installer Release!

RedDot-3ND7355 and B7U3 C50SS are back to share the latest update for their PS3MFWBuilder (linked above). For those that don't recall, this tiny GUI allows users to build their own custom firmwares by ticking a few boxes.

As if the creation process wasn't simple enough, that ease now extends to the installation too. Build now includes a well-designed Windows installer to walk new users through the process. The one curious omission not found in this update is the ability to create firmwares with the 4.60 payload.

However, the developers do say that a revision is on the way to solve that shortcoming. Unless you know what you're doing, this is the kind of app to use at your own risk. Even though the building procedure is noob-friendly, any modified firmware installation technically has the potential to brick your system.

Just for fun's sake, the PUPs you make cannot be used for downgrading and do not run on OFW above 3.55.

Update #3: Update 3 of the Install Our MFW Builder.exe (linked above). This time we've updated the PS3MFW Builder have automatic configuration for your data folder which holds the keys and your TEMP folder as well!!

So settings are auto-corrected via install FROM simply installing. This includes your TEMP and data folder as stated before. Happy Building!!

About PS3MFW Builder:


For those that don't recall, this tiny GUI allows users to build their own custom firmwares by ticking a few boxes. As if the creation process wasn't simple enough, that ease now extends to the installation too. Build now includes a well-designed Windows installer to walk new users through the process.

Unless you know what you're doing, this is the kind of app to use at your own risk. Even though the building procedure is noob-friendly, any modified firmware installation technically has the potential to brick your system. The PUPs you make cannot be used for downgrading and do not run on OFW above 3.55.

Our Goal

Make people enjoy a better privacy from Sony, we do not support anti-piracy, tho the ps3 patches included in the tasks are capable of bypassing security to do so. I am truly sorry for that -Endless


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The Team

KaKaRoto - Founder
Code Monkeys - Founder
RedDot-3ND7355 - Developer
B7U3 C50SS - Developer
PSX Members - Contributors
Habib - Contributor

Update #4: Our team has just released a new update for the installer of PS3MFW Builder v1 which includes the latest build: 2.2.1! This new build has been set to fill your settings automatically for your needs and now installs on your C drive directly to remove errors such as black screen & packing errors!

PS3MFW updated for 4.65

* Default set for 4.65 basic/vanilla fully patched PUP like any Rogero, default HABIB:

11.B !!NEW NOBT/BD PATCH NOT ADDED!! >> Added the LV1 NoBD Patch from Zecoxao, Select from Lv1 tasklist if REQUIRED

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Finally, from littlebalup following the release of PS3 4.66 Firmware comes a 4.66_NO-FSM_patch.bin who states:

For those who need, I made a no-FSM patch 4.66 (linked above) with the details as follows:

  • Made out of OFW4.66 CoreOS with minimum lv0 and spu patchs to allow CFW installation.
  • Tested on NOR consoles (CECHL and 2K).
  • PS3DumpChecker should be updated with this patch as embedded one.

Thanks playerkp420 for PS3MFW tips. Of course, there is new CoreOS in this patch. So, do not update if you want stay jailbroken.

How to add NoBD patches to any CFW

If you don't have a Blu-ray drive, usually you can not play any games or use any apps. If you follow this video, you can add the noBD patches that allow playing apps without a married Blu Ray drive. Also, can add RSOD bypass and/or Remove Bluetooth Firmware.

I was going to list some thanks to users. But I did not want to forget anyone. So I will just say thanks and all credits go to anyone and everyone that has had anything to do with MFW Builder (past & present). Also thanks to all the developers of CFW and homebrew apps. Without you guys, we would be lost.

Update #4: From RedDot-3ND7355: Released Build update for 4.66 support!


  • Fixed the lv2 that was patching 4.65 and not above (now patches 4.66 too).

Report if any error occurs.

Update #5: From playerkp420: The LV2 dump I posted was of 4.70 MFW I made with toolboy2012's MFW Builder here: PS3 CFW Creator (Updated PS3MFW UI and Design)

The 4.70 MFW I made with the MFW Builder from the guide in the first post, REBUG Toolbox and multiman did not dump LV2 correctly. But the one I posted looks to have dumped correctly.

Playerkp420_4.70_MFW: PS3 4.70 Keys / Playerkp420-MFW-LV2-FW4.70.bin / Playerkp420_4.70_MFW_PS3UPDAT.PUP (196.41 MB)

MD5 = 8C21E25AB3F30CA5C3C9E8041ADBDC12

Use at your own risk. Only tested on CECH-2501A.

PS3MFW Builder 1.0.0 (Our MFW 1.0.0) Build 2.0.0 is Released

PS3MFW Builder 1.0.0 (Our MFW 1.0.0) Build 2.0.0 is Released

Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter, Facebook and drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene and PlayStation 4 scene updates and fresh homebrew PS3 Downloads. Enjoy!

Comments 25

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#25 - aboalsos - 1d ago
aboalsos's Avatar
great work, thank you...

#24 - ENDONE - 1d ago
ENDONE's Avatar
hello, very good..

thanks much

#23 - iyad555 - 11w ago
iyad555's Avatar

#22 - Perl - 11w ago
Perl's Avatar

#21 - alexomega - 17w ago
alexomega's Avatar

#20 - rayo99 - 17w ago
rayo99's Avatar

#19 - manny8975 - 18w ago
manny8975's Avatar
Hope this works for me!

#18 - Kenny5050 - 22w ago
Kenny5050's Avatar
Great app! Is it possible to combine the features from different CFW such as MLT's 4.40 reactpsn rif licence bypass, Cobra 7.00, and Rebug's Debugging options into one CFW? I apologize for my ignorance as I'm very new to this and have minimal experience

#17 - MacHackzed - 27w ago
MacHackzed's Avatar
Please help me hack My Ps3, when i first bought from Pakistan it it had multiman and stuff but i didn't knew about this stuff.

Now i know, please Help me install in my ps3? some files from links have been deleted.

Thanks in Advance

#16 - SuperSaiyen - 61w ago
SuperSaiyen's Avatar
I just used my older version of MFW builder to finally make and install 3.15 cfw. It is pretty awesome in that i still have my original OtherOS YDL6.0 and Zerogame partition which was not affected at all.

In addition, i was able to install and run an older version of showtime player i was previously unable to install/run. Even better, I was able to install and run One, and play my PS1 backups which i could not do before. I was using my ipod 2g to JB with a PL3 payload before, and i still have to use that boot method if i want multiman 1.16 to still work.

Been trying to find another backup manager that will work on this cfw, but none either work or ask to update to 3.40+. None of the emulators i've tried seem to work, eg. snes9x, Retroarch (and standalones). FBAnext cfw1.92 ran, but no matter where i locate roms folder, it says it doesn't find any.

Anyways, I am happy i still have my older emus still on linux, and now have showtime and PS1 player running on cfw. Wish i knew the difference on this lvl1 and lvl2 patched cfw and the PL3 payload as some of my prior Homebrew still only works with the JB method. Not sure if the signing is incorrect or newer fw features called that are not present in 3.15.

Multiman for example won't work on the cfw alone, as it could never enable BD emulation, no matter what BDemu.pkgs i installed. Think i'll recreate this MFW but spoof it to 3.70 next time just to try installing/running some homebrew that ask for higher than 3.15.


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