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PS3 Slim 3.70 Unit Downgraded to 3.55 Kmeaw Custom Firmware


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153w ago - Today Italian site DiGiTaLAnGeL (linked above) reports that they have successfully downgraded a PS3 Slim 3.70 Firmware unit to 3.55 Kmeaw Custom Firmware, followed by a New Method - PS3 Downgrade v2 Supports all NOR Flash from TwoStone.

Similar to the PS3 Firmware 3.6x Downgrade via Infectus, this round they have downgraded a PlayStation 3 v3.70 Firmware console using ProgSkeet with the assistance of Dospiedra with a roughly translated PS3 3.7x Downgrade for Slims and Fats with NOR Flash now available.

To quote, roughly translated: The first downgrade to 3.70 on PS3 Slim 3:55, DiGiTaLAnGeL tested by us!

For the first time, we have been involved in something truly spectacular We were the first in the world to test the downgrade from 3.70 to 3:55 on a PS3 Slim (With flash memory, "NOR") using the ProgSkeet and patched some files provided by dospiedra, a famous Spanish coder already riding high for having discovered the method of going back to 3.55/3.41 with the PS3 (FAT flash memory "NAND").

After several attempts, in collaboration with dospiedra, we got to go back from 3.70 to 3:55, enter the factory mode with a simple key to jailbreak, rifleshare a modified version of 3:55 to prevent the SYSCON (the registry in between downgrades) was consulted during the downgrade and now we are happily at 3:55 KMEAW!

With this version of moddata 3:55, you can perform a memory dump today and you can switch on the fly from 3:55 to 3.70 without having to do this all the time-consuming process: using progskeet fact you can go straight to 3.70 changed to 3:55!

Dospiedra said it will release details on the patches applied to the NOR and the update file as soon as possible.

New life for those who arrived too late to enjoy the benefits of the 3:55?












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Comments 92 Comments - Go to Forum Thread »

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marmar's Avatar
#62 - marmar - 152w ago
I think imma do it too

Marsupilami's Avatar
#61 - Marsupilami - 152w ago
I've got a PS3 with CFW3.55, can I install CFW3.55 no check and then swap the HDD and install OFW3.70?

I don't have Progskeet and I don't want to have it btw...

michael040990's Avatar
#60 - michael040990 - 152w ago
ok first off i would like to say hello this is my first post here at ps3news and i am excited to be involved in any projects. that being said, would it work if you take the same model ps3's one with firmware 3.7 and the other at 3.55 and dump the 3.55 nand firmware and write it to the 3.7 nand chip using something like INFECTUS or progskeet will that downgrade from 3.7 to 3.55? or is there more details about it i need to know/edit?

trykenter's Avatar
#59 - trykenter - 152w ago
I think my PS3 is old enough to try to crack open.

Thanks!!

mushy409's Avatar
#58 - mushy409 - 152w ago
Think you're confusing this method with the 3.70 NOR downgrade method - as I stated earlier, this method work ONLY with the 256Mb NAND consoles CECHA up to CECHG (phattys)

The other guide doesn't involve the Infectus as it doesn't support NOR flash. You'll need to be looking into buying a progskeet...

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