[Question] Problem with operator being in Roaming all the time.

[Squier]

I'm using Telfort, but when using Telfort you are ALWAYS roaming, because Telfort uses the KPN network. I guess that's the same with your contractors.

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You could install Xposed with GravityBox module; you can set national data roaming to 'connect to data services when nationally roaming'.

I may not understand the problem, but I don't have any problems with roaming :-)