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?