About the loss of the mobile Internet.
As I wrote here, this glitch somehow gradually came to nothing, everything worked fine. But I then decided to check whether the connection really improve if we include VoLTE. So, the only visible result of this action was the resumption of failure of the Internet. Again, after the subway has to OFF-ON mobile data to make. Like this.
Post has been editedKeep quiet - 09.02.19, 18:57Reason for editing: In the header