1. AC Question's Avatar
    I took a sim card from a phone I had laying around and put in my smartwatch and it says please install valid sim card can you help?
    08-01-2017 11:07 AM
  2. hallux's Avatar
    That depends on what carrier(s) the watch supports and what carrier the SIM is for. It also matters how old the SIM is and if the SIM is still attached to an active line.

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    08-01-2017 11:16 AM

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