So... I was demonstrating to a friend the procedure that was failing to work.. but this time it worked! I flashed to the Nokia original, then repeated my steps exactly as outlined above and it worked perfectly.
The only possible explanation I can think of is when I was copying the data over to my flash drive it somewhere got corrupted (All 5 different attempts) or my device is faulty in some way. Weird.
It would seem that the observer effect is indeed powerful