1. Sankar B's Avatar
    Hi, i am using samsung Galxy S4 for last 4 month. within 2 month i got battery problem. they have replaced my battery free. now i am getting one more issue i don't have mobile network but i have WIFI. My mobile connecting to wifi and getting disconnected and getting message refreshing SIM data. i am struggling to call via wifi because of this issue.
    Please any one help me to resolve this issue. i hate this phone.. i don't have option to come out..i gave 400£ for nothing. this phone not even worth for 100£..
    12-18-2014 01:42 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! Part of the problem may be that you're using the device in a way that wasn't intended. It's expecting a SIM card to be inserted.

    Try turning Airplane Mode on--this will turn off the cell radio. Wi-fi will turn off initially as well, but you can turn wi-fi back on.
    12-18-2014 08:36 PM

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