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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:

[Register or Login to view code]

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:

[Register or Login to view code]

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

PlayStation Follow us on Twitter, Facebook and join us at our new site WWW.PSXHAX.COM!

#29 - BluRay - October 31, 2012 // 4:03 am
BluRay's Avatar
That's not how It works buddy, you need a flasher to downgrade back to 3.55 before installing 3.55+ CFW. I thought being on the scene for years would be enough for you to understand that.

Quote Originally Posted by tommasi View Post
why cant we downgrade with the keys we have again?? no one said anything about that

I've already answer that a few times, so did a lot of people. 3.55+ OFWs have better checks that stops you from installing CFWs. Can we bypass that? Probably not.

For example, 3.55 OFW have MD5 = A, 3.55 Rogero CFW have MD5 = B and 3.55 Kmeaw CFW have MD5 = C, all of them have different MD5, thus the installer can see the difference between the FWs. That was just an example though, people already managed to break MD5 security, so they are going with a better hash algorithm. In short, we don't have the right keys.

The reason for me to believe we won't bypass that security is because even some not so recent algorithms, like, SHA-2, that has been published in 2001, still haven't been hacked yet and there are probably more people trying to hack It than the PS3.

XBINX Cyro: Already seen some people confirming it works, but unless this gets new features people may want to stick to Rogero as he seems to be the most trusted dev working on CFWs right now.

#28 - XBINX Cyro - October 31, 2012 // 1:26 am
XBINX Cyro's Avatar
hello all, I managed to get my E3 installed! I have managed to get proper backup of a phat chech-h and downgraded to rogero as followed in the tutorials.

I have a few pictures i can post.. it was very easy.. sony i guess is releasing a new update 4.31? I"m quite unfamiliar with what CFW i should be on now i have a flasher.. I will be taking requests (serious) for firmware testing here in the future if anyone has suggestions.. any try ermac 4.30 yet?

#27 - innerg - October 31, 2012 // 12:23 am
innerg's Avatar
I can't find the update either... but I will be sure to avoid it

#26 - tommasi - October 31, 2012 // 12:09 am
tommasi's Avatar
why cant we downgrade with the keys we have again?? no one said anything about that

#25 - shanerocks - October 30, 2012 // 8:55 pm
shanerocks's Avatar
Right!! so is there any other way to besides using a flasher ?? Hopefully there will be a new custom firmware out soon 4.31 for ps3 thats my only hope I suppose

#24 - syphonlord - October 30, 2012 // 8:46 pm
syphonlord's Avatar
You basically put yourself back on ofw 4.31, only way back now is via a flasher. thats why multiman and that wont work, sorry dude.

#23 - shanerocks - October 30, 2012 // 6:37 pm
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Yeah will give it a try, what is that I need to do?

#22 - ricdee - October 30, 2012 // 6:20 pm
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PMSL! There is a way but i very much doubt you should attempt it!!!

#21 - shanerocks - October 30, 2012 // 5:56 pm
shanerocks's Avatar
I know it was lame on my part but as mentioned it was just a minor software update. Dint think it would do so much damage. Wondering is that any chances of me downgrading to 3.55 and then updating to 4.30??

#20 - lilmonkey - October 30, 2012 // 5:38 pm
lilmonkey's Avatar
is this guy for real? you just lost your CFW...