1. rony0505's Avatar
    PROBLEM

    Model: GALAXY S6 (SM - G920FD/G920F) DUAL SIM

    SIM 1 > GSM ONLY > CALL, Message & Internet (Slow speed as 2G) without problem
    SIM 2 > GSM ONLY > CALL, Message & Internet (Slow speed as 2G) without problem

    IF CHOOSE

    SIM 1 > LTE/WCDMA/GSM(Auto connect) OR WCDMA/GSM OR WCDMA ONLY > SHOW EMERGENCY CALL ONLY
    SIM 2 > LTE/WCDMA/GSM(Auto connect) OR WCDMA/GSM OR WCDMA ONLY > SHOW EMERGENCY CALL ONLY

    Is it the problem of dual Sim or what?
    07-13-2015 09:58 PM
  2. B. Diddy's Avatar
    Which carrier are you on? Perhaps your phone's cell radio is only compatible with the carrier's 2G GSM bands, and when you switch to the other mode, it's automatically trying to connect to 3G or 4G.
    07-14-2015 01:51 AM
  3. Chawarwantm Tamrdn's Avatar
    problem in mobile galaxy s6 g920f dual sim problem sim one not read please help me
    09-18-2015 03:00 PM

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