I get a "you have lost data connectivity because you left your home network with data roaming turned off " message whenever I turn on my 4G connection. The problem is my sim card if from the same country I live in now. This problem somehow remained since I moved, from my old sim card, and now I can't seem to get rid of it. I also see an R next to the connection indicator.

My phone is a Huawei Ascend Mate 7. Anyone have any idea on how to solve this?

  • enable data roaming in network settings. – abhit May 16 '17 at 8:19
  • Should have nothing to do with your device. Are you logged-in to your providers network? Maybe it has no coverage where you are, and because of that your device logged in to some other network. You could try to show available operators, and possibly chose to manually select your provider's network (instead of letting the device chose), if only to see whether it fixes the issue. You should find that in Settings › Mobile Data (or similar). – Izzy May 16 '17 at 9:34

I solved this by going into settings, SIM and network, and selecting SIM 1 (the phone carrier SIM in my case Giffgaff). This showed me another setting for mobile data which was switched off. Once I switched it on it found a nearby 4g source.


Go into settings, SIM and network, and selecting SIM 1 or SIM 2 according to the slot used by the problematic sim.

This shows another page for mobile data or "roaming". Roaming is for Shure switched of, Wich is the problem here. Turn roaming on. Now, the phone will remain silent and quiet.

Bravo ! Please don't forget to upvote and mark as solved.

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