1. StudDroid's Avatar
    I just updated my Moto X to android 5.1 and whenever I turn off wifi and you cellular data, the icon has an exclamation mark on it. I'm not able to do anything with data and all help is appreciated.
    06-21-2015 10:43 PM
  2. srekal08's Avatar
    I updated last night and I'm having the same issue, T-mobile.

    Fixed: Settings -> Cellular network -> Access Point Name -> APN protocol
    Change to IPv4/IPv6

    Started working.
    darkNiGHTS and StudDroid like this.
    06-22-2015 11:07 AM
  3. darkNiGHTS's Avatar
    Yess! Thank you so much. Just spent 30 minutes on the phone with T-mobile and they couldn't figure it out.
    07-12-2015 07:35 PM
  4. pbags's Avatar
    Do you have the moto x 2nd gen model? Is it safe to upgrade? Mine came with Android 4.4 Kitkat, and I'm nervous about upgrading on t-mobile.
    07-19-2015 07:38 PM
  5. HangerLane's Avatar
    This worked on my Doogee Valencia2 Y100Pro

    1. Install and open app "Hidden Android Settings" (by 0Alex)

    2. Select choose and open "RadioInfo"

    3. Move to Last option "TOGGLE DNS CHECK" - mine read "0.0.0.0 not allowed"

    press the "TOGGLE DNS CHECK" so that it displays "0.0.0.0 Allowed"

    That's it - my mobile data worked, I hope it works for you
    08-31-2015 02:02 PM
  6. alanpc23's Avatar
    Changing to IPv4/IPv6 fixed the data on my Oukitel K4000 - thanks for the tip.
    12-18-2016 12:20 PM

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