Keys are a disaster. I programmed new key with AK90, now there is a shadow code when used that something is wrong with the key (even though it works fine). Im sure this happens with every key not programmed from BMW themselves. Moreover, i ordered new key from dealer, it doesn't start the car either!!! LOL! Have no idea what these guys are talking about in terms of EWS bypass but if its so easy please share because apparently EWS delete on the ECU in my N62 is very hard if not impossible and at this point i just need reliability of locking and unlocking my car.