PS3 System Software Update v4.21 is Released, Details Available

93w ago - Last week Sony released PS3 Firmware 4.20, and today they have announced via Twitter that PlayStation 3 System Software version 4.21 is incoming with details below.

Download: PS3 Firmware 4.21 Update (US) / PS3 Firmware 4.21 Update (EU) / Core_OS_Package.PKG 4.21 (Unpacked) by doggie721 / PS3 LV1 Dump from 4.21 / PS3 LV1 Dump from 4.21 (Mirror) / PS3 LV2 Dump from 4.21 / LV2 Dumper for CFW 4.21 by zadow28

Currently it is an optional (non-mandatory) PS3 update, and below is what Sony stated in their Tweet on the revision, to quote:

"PS3 system software update 4.21 will be released soon. It's a minor, optional update that improves software stability."

As always, we will update this post as more details are available!

From Sony's page: Find out what features are included in PS3 system software update 4.21.

An update to the PS3 system software was released on 5 July 2012. If you update your PS3 system, the system software version will be 4.21 and the following features will be updated.

In order to download PS3 system software version 4.21, you will need a minimum 200MB of free space on either the PS3 Hard Disk Drive (System Update) or on removable storage media (PC Update).

Main features in system software update version 4.21

  • System stability during use of some PS3 software has been improved.

Finally, from zadow28: LV1 Dump for PS3 FW 4.21 released! Now this wasn't easy, but after some days I managed to dump the lv2. I have managed to dump the lv1 also, and that is more important. Made two links since this isn't something sony likes. Regards.

Here is the lv2_dump from 4.21 (linked above). Sycall table was found at offset 0x346390.

No its not for patching the kernel, but it would help getting there. This is an dump from the kernel and lv2 functions. So in an way its the lv2 kernel decrypted.remember the one we cant decrypt yet.

Together with the sycall table you would now see where the correct syscalls would be on ofw 4.21. Therefore exploiting it. Also here (above) is an lv2 dumper for cfw 4.21 i converted.. usb in the right slot. regards to the orgiginal creator. not sure who it is.

Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!

Comments 26 Comments - Go to Forum Thread »

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Graczdari91's Avatar
#16 - Graczdari91 - 93w ago
It is unfortunate that PSN has stopped working

Starchild2k's Avatar
#15 - Starchild2k - 93w ago
idkIHateNames you compain that the addons for black ops don't work, well if you read up about React PSN you would actually know how to make those DLC PKG'S for black ops work.

I am not trying to bash you and really this post was supposed to be about the 4.21 update, but damn I am very aware of this ps3 scene and these posts could easily be avoided...

NTA's Avatar
#14 - NTA - 93w ago
How the heck can you jailbreak your ps3 to 4.21 LOL

DgkSkater's Avatar
#13 - DgkSkater - 93w ago
i jailbreaked my ps3 to 4.21 and it gave me folder named (PS vita system application utility) I want to no how to use it!!! I NEED HELP!!

idkIHateNames's Avatar
#12 - idkIHateNames - 93w ago
so if i'm jailbroken i can still go online, right? is there any homebrew or anything that works on the 4.20 jailbreak.

also i cant install any game add on's like the black ops first strike map pack i keep getting an error anyone help!!! please and very appreciated

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