countax

I may be wrong, but I did not think the dead locking process stopped the key barrel from turning. Surely the whole point of the EKA is a get out of jail card. Could it be the key is not a perfect fit in the barrel? My sons TF has about 6 keys that look identical but only two actually turn in the lock. Do you have a second key to try?
Maybe try easing the non working key out a little to see if it will then turn.