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Device Support

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    Troubleshooting

    If your device isn't working properly, you can try several solutions to solve the problem.
    In most cases you can solve the problem by following these guidelines:

    I can't make voice calls

    Cause 4 of 8: Your mobile phone is set to connect to 4G networks only

    If your mobile phone is set to connect to 4G networks only, it can't find a network if you're in an area with poor or no 4G network coverage.

    Solution: Change network mode allowing your mobile phone to connect to both 2G, 3G and 4G networks.

    Step 1 of 7

    Press Settings.

    Step 2 of 7

    Press Mobile Data.

    Step 3 of 7

    Press Mobile Data Options.

    Step 4 of 7

    Press Enable 4G.

    Step 5 of 7

    To activate 4G:
    Press Voice & Data or Data Only.

    Step 6 of 7

    To deactivate 4G:
    Press Off.

    Step 7 of 7

    Press the Home key to end the session and return to the Home screen.

    1 Find "Enable 4G"

    Press Settings.
    Press Mobile Data.
    Press Mobile Data Options.
    Press Enable 4G.

    2 Select network mode

    To activate 4G:
    Press Voice & Data or Data Only.
    To deactivate 4G:
    Press Off.

    3 Return to the Home screen

    Press the Home key to end the session and return to the Home screen.

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    My Swisscom Assistant

    The worry-free service for your computer

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    Set up MMS, e-mail, Internet, Swisscom TV air and WLAN on your mobile phone.

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    Check up on your own Swisscom services such as TV, Internet, telephone, and email!

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