Any luck ? My buddy literally did my switch today and it was the exact same issue. Pink/Purple he forgot the nand, put the nand on and it flashed blue, then green. boot.dat? logo, then went off and wont go back on now.
He did update the chip to 1.3 before as well.
With nand is stock location it doesnt boot either. Might be battery as well though its been off for a couple months. He's leaving it to charge.
Nothing much yet, i had it plugged into my laptop charger all night, nothing.
I've just had it plugged into my laptop for 5 minutes, and it flashes green, then goes back to purple. When it flashes green though, the screen does show the boot.dat screen! so it might just be a charge thing, i'll report back in 30 mins
EDIT: It works! Connected it to my PC for 10-15 minutes, boots fine now! So it's probably just a charge thing. I'll let it charge for a bit longer as i haven't put the cooler back, but it's looking promising!
EDIT 2: i've just updates the firmware through the SX OS menu! At first, it would boot to the SX OS splash screen, and then give the purple light again.
When plugging it in again for 1-2 minutes, SX OS stayed on for the whole time, letting me update the firmware and moving through the menu's.
So for anyone who's getting the purple LED on boot, make sure it's charged! Plug it in to the pc and wait a little while.