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by MRA @ http://www.xboxhacker.net/index.php?topic=12956.msg88305#msg88305
Dump new Xbox 360 Lite-On drives such as 83850-v2, 93450 and 74850.
No pin lifting or epoxy removing needed anymore. Just solder everything on the back according to this picture. Also if you got status 0x52 instead of 0x72 with the 1,8V-method this should do it. I already dumped 4 drives with this method without any issues.
- switch in pos 1
- power drive
- start Dosflash --> SPI should get recognized with status 0x72
- put switch in pos 2
- click "read"
Unsolder everything and reconnect the lines that have been cut.
Old info, only here for reference.
Today I made some progress too. I was able to dump the O-FW of a 74850. So here is how it works (although I just tried it with one drive til now):
-Lift pin 101 and 122 -solder a cable to pin 100, pin 101 and one to 3,3V -use a 2-way switch which either connects 101 to 3,3V or to 100 -put the switch into the position so that it connects 100 to 101 -power drive -start Dosflash, it will recognise the SPI with Status x72 -if you read it out now, it will just give you a .bin full of FFFFFFFF, but thats OK, this is how we tricked the Flash Controller to think the SPI is empty -put the switch in the other position (so that 101 is connected to 3,3V) -now read the flash
---> Voila, you got your dump==
Maybe someone else is going to give it a try, would be nice to get some feedback. For today my tests are finished, its pretty late....
Oh yes, and of course: no warranty at all, I even fried one drive myself a few days ago, when I was performing some tests. I suppose working on it a 4:30 in the morning obviously wasn't the best idea...
Related MT chip pinout by MODFREAKz can be found here: [1]
![[1]](http://www.eurasia.nu/images/submitted/2isva4z.jpg){kind=link}