Article: CEX to DEX: Extract METLDR From Any NOR/NAND

**Tranced** · 07-16-2012,12:53 PM

You can view the page at http://psx-scene.com/forums/content....m-Any-NOR-NAND

**indirect76** · 07-16-2012,01:01 PM

Very cool. Another tool for the pros. If you're not a dev I wouldn't attempt CEX to DEX. We're not even sure what can and cannot be done with a DEX unit yet.

**JDMAlex** · 07-16-2012,01:57 PM

I would do it if only PSN would work

**aneesh** · 07-16-2012,02:11 PM

Hey guys - does this mean e3 flasher can flash it , reverse and write back even on the cech3xxxx Bios ?

**AR22** · 07-16-2012,02:21 PM

is it possible to go back to from DEX to CEX without a hw flasher?

**mistar** · 07-16-2012,02:39 PM

Can you use Preloader Advance 3.1. on OFW 4.21 for METLDR Dump??
Or just 3.55 and 3.41???

M

**aldostools** · 07-16-2012,03:22 PM

If I understand it right, the major differences from this and andbey0nd's C2D.exe are that:
1- This tool supports NAND/NOR flash dumps of CEX, while C2D only supports NOR flash dump of CEX
2- This tool extracts the EID root key (per_console_key) directly from the metldrpwn. So it is not required to hex edit the metldr to extract the first 3 lines (48 bytes).
3- This tool does not require the Win32OpenSSL_Light installed

For the CEX dump, it is still necessary the glevand's dump_flash.pkg (aka USB Flash Dump.pkg)
(I guess that 2 dumps are recommended to compare md5/sha-1 hashes and be sure that it's valid)

For the metldr dump, it is still necessary to have an OFW (<=3.15) or a CFW with dual boot support to boot linux (CFW355-OTHEROS++.PUP), then make and run metldrpwn to dump metldr

And a flasher or a tool like JaiCrab's Preloader Advance v3.1 to flash the NOR DEX dump created by this tool.

Am I right? or am I missing something ?

**Kenzya** · 07-16-2012,03:29 PM

Originally Posted by mistar

Can you use Preloader Advance 3.1. on OFW 4.21 for METLDR Dump??
Or just 3.55 and 3.41???

M

Even if you could what difference would it make? You still wouldn't be able to do anything on OFW 4.21

**brakk3n** · 07-16-2012,04:34 PM

Lots of threads on lots of forums talking about if, can I, will it, but has anyone actually converted their console yet?

**mistar** · 07-16-2012,06:26 PM

Originally Posted by Kenzya

Even if you could what difference would it make? You still wouldn't be able to do anything on OFW 4.21

So YES?or NO?
Cuz if you can that means you can downgrade whitout a flasher.
Get Linux back do a QAFlag and update again so it remains FLAGED thats kinda useful i think.

M

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