1. AC Question's Avatar
    I've received my S4 unlock code and inserted another carrier's SIM card but when I power up my phone (when I should be prompted for an unlock code), the phone takes me to the standard unlock screen and searches for service...which, of course, it never finds. S4 is an M-919 and my service is GSM (T-Mobile); other carrier card is CDMA (Verizon). ???
    04-07-2015 10:49 PM
  2. itguyjax8430's Avatar
    I've received my S4 unlock code and inserted another carrier's SIM card but when I power up my phone (when I should be prompted for an unlock code), the phone takes me to the standard unlock screen and searches for service...which, of course, it never finds. S4 is an M-919 and my service is GSM (T-Mobile); other carrier card is CDMA (Verizon). ???
    Welcome to Android Central!

    The T-Mobile phone does not have the CDMA bands to work on Verizon. It has the LTE bands but not the CDMA ones

    Compare Phones (Phone Scoop)
    04-10-2015 07:23 AM

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