Any idea how to switch off the constant bugging alerts telling me i have lost my network, can't access cellular data and another one I can't remember right now but is always sequenced with these 2? They ping in and interrupt whatever other application is running driving me nuts particularly on train journeys where the signal does come in and out. I have notifications switched off and can't see what else I can do to stop this. Sometimes it's a constant repeating barrage of 3 consecutive messages.