1. Android Central Question's Avatar
    My S9 is showing a grey triangle with a white exclamation mark and MM at the bottom.

    I can't phone or sms or do anything accept if I'm on wifi.

    Please help
    11-08-2018 12:38 AM
  2. belodion's Avatar
    Take it to your nearest carrier store, or at least call them and explain.
    11-08-2018 06:23 AM

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