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October 29, 2012 // 11:28 pm - It was just a week ago since the previous PlayStation 3 System Software update arrived, but today Tempest_Fire of Sony PlayStation Support has announced that PS3 System Software Update v4.31 is incoming tonight with details below!

Download: PS3 Firmware 4.31 Update (US) / PS3 Firmware 4.31 Update (EU) / PS3 DEV_Flash 4.31 by Team Siracide / PS3 4.31 LV0 Decrypted by Soon (No Password) / (Mirror - Password: consolecrunch) / PS3 LV0 4.25 / 4.30 / 4.31 Decrypted / PS3 LV0 4.25 / 4.30 / 4.31 Decrypted (Mirror) / PS3 LV0 4.25 / 4.30 / 4.31 Decrypted (Mirror #2) / PS3 LV0 4.25 / 4.30 / 4.31 Decrypted (Mirror #3) / PS3 LV0 4.25 / 4.30 / 4.31 Decrypted (Mirror #4) / Appldr of PS3 OFW 4.31 Decrypted by nathan_r32_69 / PS3 Firmware 4.31 Keys / KeyMEGAPACK.rar by unknown / COS 4.31 (Decrypted) / PS3Keys (Updated 11/30/2012) / SCETool Format Keys (Updated 11/30/2012) by SammyG0080 (aka str8b1t) / Core_OS 4.31 [Decrypted+Encrypted] by XxZer0ModZxX (via RedDot-3ND7355 from / PS3 4.30 / 4.31 LV1 / LV2 Dumps from SammyG0080 / PS3 4.31 Firmware Keys by MARKUS++

To quote: Hi everyone, I'm posting this message to inform you that there will be a minor firmware update (v.4.31) released on the evening of Monday, October 29th.

There will not be PlayStation Network maintenance during this time; online play and access to apps will not be affected during the release of this update.

This is not a mandatory update. However, we suggest you keep your systems updated with the latest firmware, as these updates further improve overall system stability and help provide you with the best online entertainment experience possible.

To update to v.4.31, select Settings from your Xross Media Bar (XMB) > System Update > Update via Internet and then follow the on-screen instructions.

More information about PlayStation system updates can be found here:

Digital Platforms Community Manager
Sony Computer Entertainment America

From their Twitter: "If you've had issues with Monster Hunter Portable 3rd HD, download the optional PS3 software update (v.4.31)"

From afiser on the PS3 Keys posted above: This is as simple as putting the bootldr keys (what you all call the lv0 keys released last week) in the scetool data/keys file and running scetool.exe -d lv0 lv0.elf

From zadow28: Found some interesting, when debugging lv1.elf from 4.31:

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Only shows when debugging.. well thats where i'm at so far regards.

Dumps/Debug off core_os/Devflash files. 4.++

Have done some experimenting. Found out that you can actuelly run the self/sprx (ppc)

From core_os, and Devflash.. from "official" debugger,and dump them. You have to set up an fake Param.sfo, so the debugger thinks its an executable.. but the result is quite amazing. You really get an better overview, since you can see al the files it communicates with.

I use Ida pro 64 PPC proccesser to analyze, the dump. Then use Kakarotos scrips analyze_sprx.idc. Set new TOC, when the script tell you and reanalyze.

The dump is 4mb packed but 250 mb unpacked. I'll give an more deeper, TUT when i have the time. Works on all files so far i tested PPC ones, so all expect the spu files. Tested vsh.self/mcore.self/psp_emu.self plus many more.

Well here is the dump, for BDVD.SELF:

Off course you can debug all the files, and the embedded spu before dumping.

Finally, from Team Siracide comes PS3 DEV_Flash 4.31 with details below, as follows:

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Sony PS3 System Software Update v4.31 Incoming, Details Arrive

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.

#39 - cfwmark - December 22, 2012 // 7:26 am
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hi there again, tried to install .PUP file and got the message (Update data of version 1.97 or later can be installed on this system (8002F967)).

download 2.00 fw can't change the build number not sure how. thank for the .PUP files but i think I have to wait.

I hope that the picture is good proof.

#38 - cfwmark - December 21, 2012 // 2:20 pm
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attachments not working for me here is the info.

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#37 - cfwmark - December 21, 2012 // 8:53 am
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thank you for answering! now I have this problem lv1.self (info in attachments)

I can make new (os core) to fit "update_file" with your lv1 decrypted files have tried to to use the script but I could not get the script to work (said it will work)

Dump lv1 embedded elfs Script

I did this script quickly to exctract the embedded files within lv1. This script doesn't use the file table, is ugly, but works... anyone feel free to improve it --PsiCoLeO 16:11, 22 May 2011 (CDT)

How to use it

Save the script in a file named

give it execute permissions

chmod +x

feed it with decrypted lv1.self

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If you could find tutorial for that would be great.

#36 - oVERSoLDiER - December 20, 2012 // 4:21 pm
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There is no FW version 1.97. We got all FW's listed in the Download section, check it out

#35 - cfwmark - December 20, 2012 // 2:51 pm
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It will not install on 4.25ofw also, app-key-431 ?? one key away but still won't install. and lv1, made new CORE_OS_PACKAGE_encrypted.PKG but will not work (same problem) what is the program name of the program that you are using? also working hard on this projects, does anyone at all know where I can find PS3UPDAT.PUP version 1.97? need help.

Datecode - Used in Euro regions

2 digits: number=year, letter=quarter

e.g.: |7D| means 2007, 4th quarter

Most commonly asked for when wanting to know if a console can be downgraded to 3.55.

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Manufacturing Date Used in USA/Japan there it is 7d.

In PS3MFW Builder v3 can I use the TASK OPTIONS PUP build number: ?? EG:1.97 build number? will this work? If so what numbers do I use for 1.97?

#34 - XxZer0ModZxX - December 4, 2012 // 12:05 am
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Its nice to see people like our work, for more latest keys checkout or

#33 - pinoytechno - November 1, 2012 // 11:08 am
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waiting for a stable cfw 4.30

#32 - bitsbubba - October 31, 2012 // 2:50 pm
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REBUG could be a definate, but I wouldn't be expecting KMEAW anytime soon

#31 - dogggg - October 31, 2012 // 11:12 am
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yup, same here.. my old phat 60 GB ps3 is still on 3.55.2 ReBug CFW (i upgraded it to 500GB..) and i'm still waiting for a proper 4.30+ CFW like Rebug or Kmeaw.. there is no need to rush things.. and to be honest, i only play games at weekends, cuz i don't have time these days..

soo uumm.. i keep on waiting ^^

#30 - elser1 - October 31, 2012 // 5:09 am
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i'm sure there will be a new rebug. thats what i'm waiting for. rebug is by far the best cfw i've seen. but that's my opinion.