Country bought from: Bosnia and Herzegovina
 Unlocked? No
 Color: Lumia 820 Black with yellow Wireless Charging shell
 Charging Method: Over night: wireless charging, during day: USB from laptop.
 Portico updated? Yes
 Carrier: BH Telecom
 Heavy usage? Yes
 Occasional overheating? Not so much
 Skype user? Yes
 Gmail user? Yes
Viber user? Yes
 Nokia Maps / Drive user? Yes
 Inconsistencies in battery life? Yes
The issue is that phone very often knows to shutdown, during day and night, only solution for powering up phone is to remove battery on couple of second.
As I can see a lot of people has same problem and to be honest I am well experience user, with technical background and I am not able to found a reason why the phone randomly shutdown. I was perform dozen of testing during couple of days, installing, uninstalling apps, resetting phone to factory state and I could not see any relationship between random shutdown and installed apps and apps running in background.
On my opinion, the right solution for this problem it would be event log on the phone. In terms of that, does anyone have some idea can this be developed and does anyone knows what data are included in feedback to Nokia and Microsoft that phone do it by self if we enable it via setting?
Cheers,
JosipoGo