Nope, running stock files. I was running unlocked A15, but downgraded to A11 through Dell's site. I went with A11 only because that's the other option listed in your thread for the unlocked bios. After that I had to reinstall the driver for the 680M, but tried stock Nvidia driver and it worked. Prior it would fail, saying incompatible. I should've just read the README file sooner. That would've saved me a ton of work. Tearing these screens apart sucks.
I'm still having issues getting 3D to actually work, however it is definitely software related now, not hardware. Setup Wizard starts but fails with message stating "Failed to create D3D Device1". I'm getting close, I think.