My iPhone 7 Plus could easily get hot when being used, even for a small thing like reading this HWZ app. This happens only after updating to iOS 10.2. Something's wrong with my iPhone? Should I service it to Apple?

the vibrate function not working. tried restarting n settings. how do i cinfirm it is malfunction before going down to service ctr?
thks.
reload a fresh copy of e OS, if still not working means hardware issue liao...
7+ vibrate is it normal to be weak?reload a fresh copy of e OS, if still not working means hardware issue liao...
u mean reset?
Anyone having huge drain issues. Overnight 8 hours drained 10%. No apps on or anything

Never liked the phone to ring but need the notifications tone. I did a silent mp3 and create as ringtone. Vibration is good.
My iphone 7+ suddenly had a black screen & the spinning wheel in the middle. Duration quite short before returning to lock screen. Make me Chua sai. What happened ah, was surfing normally.
And my charging seem slow leh. Third party cable charging from laptop.
Laptop charging is always the slowest, can't supply much power to charge i7+.