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PS3 Slim 3.70 Unit Downgraded to 3.55 Kmeaw Custom Firmware


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154w 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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mushy409's Avatar
#72 - mushy409 - 151w ago
3.55nocheck is to disable the BLURAY drive checking (whether or not you have a drive connected)

UNATURAL - [Register or Login to view links]

All the information you need is in that guide. The offsets are clearly mentioned in the guide.

UNATURAL's Avatar
#71 - UNATURAL - 151w ago
anybody know of a video tut on doing the hXd editing unless theres any news of usb form coming out in the next few months?

never should have kept updating...

Marsupilami's Avatar
#70 - Marsupilami - 152w ago
i'm not sure i haven't used no check but if you install a ofw over a cfw the cfw is deleted and the ofw will look at the hard drive for the ofw drive and if you put a cfw drive in it wont be recognized by the ofw on the nand.
The question is, does the nand check the fw, or does the fw check the nand. Because in second case, the 3.55nocheck is exactly not doing this (for my understanding...)

I think I'll just give it a shot..

michael040990's Avatar
#69 - michael040990 - 152w ago
i'm not sure i haven't used no check but if you install a ofw over a cfw the cfw is deleted and the ofw will look at the hard drive for the ofw drive and if you put a cfw drive in it wont be recognized by the ofw on the nand.
you sound like you have the knowledge to do what you say.. well done mick!!
thank you i'm just trying to learn everything i can i have much to learn.

Marsupilami's Avatar
#68 - 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...
anyone got an answer for that? once again, I'd like to install cfw3.55nocheck on my cfw3.55, after that, I put in a new HDD, install ofw3.70 and done.

Does that work? If not, why?

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