The problem that you are facing is that you are using what is a CDMA phone on a GSM network. Sprint is a CDMA carrier and T-Mobile is a GSM carrier, however, you need to follow the instructions from Sprint on how to unlock your phone and this entails connecting to your Mac or PC at some stage so that you go to iTunes to complete the process at some stage. You can then go to the T-Mobile store to get one of their SIM cards and it should work. No, of course Apple cannot and will not help you - they are not carriers and if your phone is locked to a particular carrier, then it is their responsibility to unlock the phone and is nothing at all to do with Apple - it is solely the carrier's responsibility as they provide your phone service whether this be CDMA or GSM. Cummins Insite 7 X Keygen on this page. How To Unlock Icloud Activation Lock Iphone 5. Help Me Unlock My Iphone there. Jul 29, 2015 12:16 AM. Ok, so LOTS of misinformation out there. If you received an 'unlock code', your phone will not unlock.