Won't boot after Odin'd stock

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http://forum.xda-developers.com – Hi guys, so I just bought an SIII and after a long and fruitful relationship with my SII, I decided to flash stock and sell the thing. Unfortunately it won't boot. I was previously running ASNET MIUI on the thing, just downloaded a stock 4.0.3 firmware and flashed it, but it just doesn't go past the S logo on the boot animation. I've tried flashing about 6 different firmwares through Odin, unbranded, O2 branded and frankenstein, and none get past the boot animation. Download mode still works and recovery works. I've tried just flashing different kernels through Odin as well but doesn't w (HowTos)