walley 0 Report post Posted December 17, 2007 I have a Nokia CDMA handset, my customers network is non-uim networks, so i need programmed the number infomation into the phone. normally, i think, the A-key can be any number if the A-key of the phone and networks are the same. but when i input the A-key code of 0000000000000000, it said "unvalid", the phone did not acept this A-key. why? may be in america, the networks check the A-key not check the ESN, so the phone vendor make some relationship between ESN and A-key? because the nokia CDMA phone is from ameirca. so can some body help me? Share this post Link to post Share on other sites