Isn't it possible to take the nand and cpu from a final dev xenon then swap it to a retail xenon? Hardware is basically the same so it should work?
Yes, but... -Why? and -How? Those are surface mounted, and while the CPU can be done, the NAND is nearly impossible to do without destroying the chips. And you'd be destroying a dev kit to make a retail. Am I missing something here?
I managed to get a crappy xenon dev where the gpu is dead and possibly the ram; the cpu seems fine and is not bricked. I wanted to see if there is a way to salvage it, lol maybe if the nand is infact that bad to remove and replace I wonder if I could install a dual nand and write the image to that?
You might have better luck trying to sell it for parts to someone who can use it, and take the cash and buy a new Xbox. Also just realized I was thinking of a different type of chip. Looks like the NAND can be swapped but it wouldn't be easy. Wait for a response from someone who knows X360.
Why not just hack the other xenon and use rgloader or fusion...? It wouldn't be worth the time/effort to revive a console thats worth basically the same amount as a retail.
Must transplant just CPU and NAND... Rearrange the resistors for 64MB mode, yes. No need to replace the Southbridge as it's not a "special" chip. Also a lot of components are "stuffed" on places that are left empty on a retail board, to enable the debug headers. It will be a MASSIVE work. If you're going to move the CPU to another board, why not move the GPU from the retail to the dev board instead ? Less work and the result will be the same in the end.
Well if a dev board is warped then maybe that's why he wants to do a swap or just re ball the Dev board with proper bga tools.
There's a line with resistors near the NAND. Just copy the layout on the dev into the retail then move the NAND TSOP. That tell the southbridge to work into the 64MB mode. Build a retail image on a 64MB is apparently doable and the console would operate correctly even allowing updates. The problem is you would need to build such a image in the correct way and the only people who could pull such a stunt would be the folks that make the tool that is used to build JTAG/RGH images.
Would the Smc for the dev southbridge work on a retail one, that is why I suggest of moving it as well?
Same chip on dev and retail, different stuff written on nand (the firmware for the southbridge is on the first block of the nand) so no need to move southbridge around.