I'm visiting the uk at the moment, so I purchased a 3mobile sim card to use for the month I'm here.
I'm finding that my battery is discharging about twice as fast as normal. If it's been on charge overnight it's down to 15% by about 4 pm just on standby.
Phone is a Samsung S5 mini SM-G800Y running 5.1.1. Sim is a £20 prepay.
I've tried rebooting, battery pull etc. Power saving mode helps a little, but why should I have to?
3mobile seems to have pretty rubbish coverage - ok in London, but only two bars in a large town, nothing in a semi-rural area. Does the phone have to work harder when the signal is poor?
Are there any settings I can tweak?
When I inserted the sim, the phone downloaded a couple of configuration files off the network which I accepted. Did these somehow poison the phone? Can I delete them?
My wife's iPhone 7 has the same sim. Her phone shows the same poor coverage but isn't affected by the battery issue.
I have downloaded a couple of apps but the battery issue started before that.