So, my jtagged 360 won't boot anymore for unknown reasons. I assume it is due to a corrupted nand from when I updated to 13599 a few weeks ago. It slowly began messing up and freezing and now, it won't boot. I have an original nand and I could back it up and try to update it again, but I fear that it may just lead me to another corrupted nand. I was wondering if it would be possible to get a donor nand or something that is already on 13599 without problems and use XELL to install it. Anybody know if this might work?