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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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#26 - YuuZA - July 13, 2012 // 9:09 pm
YuuZA's Avatar
YuuZA: Have a seat UserDifferentia, i have some bad news for you.
UserDifferentia: Tell me as i can handle it while standing...
YuuZA: There is no 4.21 CFW... walks out as UserDifferentia falls to the floor...

/OT, I think i am going to update to OFW soon

#25 - UserDifferentia - July 13, 2012 // 8:53 pm
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Hi, does anyone know where I can get CFW 4.21? The last one I downloaded was corrupted; I guess I was fortunate because my PS3 didn't want to install it... because the data on the CFW was corrupted.

#24 - southpawryder - July 11, 2012 // 8:52 am
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they do any thing to control us

#23 - fantopoulos - July 10, 2012 // 3:38 pm
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get real dude doesn't rogero 3.3 with 4.21 spoofer work?

#22 - morenus - July 10, 2012 // 2:40 pm
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PSN is over. Now we have to wait one new spoof for access again.

#21 - dyceast - July 10, 2012 // 11:46 am
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fckpsn 7.0b and 8 don't work anymore

Definitely was good while it lasted.. Lets hope they find another solution.

#20 - HeyManHRU - July 10, 2012 // 3:51 am
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Rogero CFW isn't working either, I guess you're right. Well it was good while it lasted I guess

#19 - Starchild2k - July 10, 2012 // 3:44 am
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what cfw you on? did try using fckpsn yet? There is a revision to PSoN you might want to try that as well only if your on kmeaw 3.55 cfw

just checked fckpsn 0.08 and as far as what I have been reading all other known methods of getting on PSN isn't working either, looks like sony did put another screwing to CFW users! All we can do now is wait and see if there is going to be another fix for PSN ACCESS. It was fun while it lasted I guess...

#18 - HeyManHRU - July 10, 2012 // 2:56 am
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It asks me to update when I was using the PS3ita's PSoN program and I try connecting to PSN. I'm going to use Rogero's new CFW and see if that lets me connect.

#17 - elser1 - July 10, 2012 // 2:20 am
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hopefully there will the a fix soon again for psn.