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July 4, 2012 // 10:11 pm - 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.

[Register or Login to view code]

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.

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

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#6 - oVERSoLDiER - July 5, 2012 // 3:18 pm
oVERSoLDiER's Avatar
How can you still sign in onto PSN ? I got the 4.20 Spoof which quit with the error code BADC0FFE (eeh? ) and still on 4.11 spoof, which I uninstalled before (and rebooted).

#5 - IamAwesom - July 5, 2012 // 1:00 pm
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Wow , i just read that sony had v4.20 released and in one week a new update.

#4 - elser1 - July 5, 2012 // 12:18 pm
elser1's Avatar
it is optional so you can stay on 4.20 spoof and get psn on your jb cfw

#3 - boris0718 - July 5, 2012 // 9:08 am
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ok?? since it's "optional" why don't they keep it to themselves?

#2 - chayatat - July 5, 2012 // 8:31 am
chayatat's Avatar
Looking for a way to really log into the PSN. Will be fine without PSN access but it would be nice to have it.

Oh yeah CFW rules.

#1 - Starchild2k - July 5, 2012 // 7:36 am
Starchild2k's Avatar
Well it looks like Sony is really trying to stick it to CFW users again! WOW 4.21 really??? Come on we just had the 4.20 update not even a few weeks ago!

Give it up sony you can't beat the hackers there will always be a way to hack your precious ps3 system that you dummies said that couldn't be hacked!!!! Looks like there will be a new revision of fckpsn! Long live cfw, long live fckpsn!!

Just checked to see if fckpsn is working and its still letting me sign into PSN!!! So if they where trying to stop this hack from working its clearly not working out for them! This doesn't mean though that this hack is going to work forever though they still might not of released the update yet to the systems I will keep checking on this throughout the day and keep everyone posted!!!