1. CrackBerry Question's Avatar
    I have a Z10 device versin STL100-3 and my mobile operator needs to know wich model is (RFK121LW or RFF91LW), because they cant give to me the 4G LTE service.
    Im in Argentina and the operator is Movistar (in his web page they insert the Z10 versin STL100-3 as compatible with the 4G LTE network).
    Thank you.
    03-10-15 12:39 PM
  2. thurask's Avatar
    Sticker behind the battery.

    Posted via CB10
    raino likes this.
    03-10-15 12:42 PM
  3. anon(9208252)'s Avatar
    03-10-15 12:42 PM
  4. raino's Avatar
    I have a Z10 device versin STL100-3 and my mobile operator needs to know wich model is (RFK121LW or RFF91LW), because they cant give to me the 4G LTE service.
    Im in Argentina and the operator is Movistar (in his web page they insert the Z10 versin STL100-3 as compatible with the 4G LTE network).
    Thank you.
    Do they really want to know which one of the two STL100-3s it is, for some weird activation purposes maybe? Because in reality, both are the same--they have the same bands.
    03-10-15 02:19 PM
  5. lift's Avatar
    Do they really want to know which one of the two STL100-3s it is, for some weird activation purposes maybe? Because in reality, both are the same--they have the same bands.
    True. I have a couple of STL100-3 AT&T branded (RFF91LW) unlocked. When I use a T-Mobile SIM in the phones all the bands that the RFK121LW has become available. So to make things simple, The 2 versions are exactly the same. The RFF91LW becomes a RFK121LW depending on the SIM installed.
    03-11-15 10:23 AM

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