Need some help on NAND/NOR dump to USB.

[MostWanted]

I have some random 3.55 CFW (I dont remember wich one, it is such a long time ago since I installed it), and Im about to upgrade it to 4.30 rogero.

I am following a guide, and I know I can do it. But I still have 2 questions:

1. How do I check that my NAND/NOR dump is a valid backup?

2. Can I upgrade 3.55 CFW -> 4.30 Rogero, or should I first install 3.55 OFW?

I have a fat 40GB PS3 with a serial that ends with CECHG04.

[Funtimez]

I have some random 3.55 CFW (I dont remember wich one, it is such a long time ago since I installed it), and Im about to upgrade it to 4.30 rogero.

I am following a guide, and I know I can do it. But I still have 2 questions:

1. How do I check that my NAND/NOR dump is a valid backup?

2. Can I upgrade 3.55 CFW -> 4.30 Rogero, or should I first install 3.55 OFW?

I have a fat 40GB PS3 with a serial that ends with CECHG04.

you really should search around before you post. i have already answered your questions several times. you might wanna search.

[cyto]

I would use memdump 0.1 which can be found in the downloads section. I found that MM produced bad dumps through hex editor verification. Memdump worked perfectly for the dumps and everything checks out with HxD. Go to the dowgrade section of the forums and there is a sticky guide that will show you what you need to check.

[GIGAHERZ]

cech-g series is all nand flash type .. so will need a good hands with zero shaking , u can check :SKU Models - PS3 Development Wiki to know ur ps3 hardware well .. and here : Hardware flashing - PS3 Development Wiki for general info about ur flasher ps. since ur ps3 is nand u need progskeet to reprogram or teensy++ .. i prefer progskeet since its alot faster .. and u must check here :Validating flash dumps - PS3 Development Wiki for Validating flash dumps

ALWAYS MAKE SURE UR DUMP IS VALID !!! OR UR PS3 WILL HAVE A PERMA-BRICK

[MostWanted]

Thank you all for the help, I have searched around and read about most of these things, I justwanted to be sure Im doing everything right..

I downloaded memdump 0.1 and did a level 2 dump and a flash dump.. Im not really sure about wich one is the right one, I think it is the level 2 one. I downloaded HxD and Im trying to check if the dump is valid now!

[sjp3]

In response to GIGAHERZ: " cech-g series is all nand flash type .. so will need a good hands with zero shaking"

What are you going on about? The OP makes it clear that his console is a already on CFW, thereby negating the need to use a flasher to dump the NAND. A flasher would only be used as a safety precaution for disaster recovery in his case.