Why is my Samsung Galaxy S5 randomly restarting itself?

[Kelly Talbot]

Samsung Galaxy S5 randomly restarting itself. PLEASE HELP

A few days ago, my phone spontaneously restarted after opening snapchat app, and would only function normally after turning off for a long period of time… when turning on or restarting would get stuck in the process and get caught in a cycle of restarting until battery removed. Then progressed to restarting spontaneously every time opening a camera app or taking a photo. Eventually would not stay turned on much longer than 20 minutes without restarting itself.
Factory reset phone but problem continued to persist, even during factory reset!!
The phone isn't even a year old!
It has been backed up on Samsung link, OneDrive and cloud.

How do i fix this? please help!

 

[Rob1010]

I wish i could help, but all i can say is my situation is identical in every way to yours and i still haven't found a solution.
does the problem go away when the device is on charge?

 

[Rob1010]

In my case it was the battery that was at fault. I tried my device with a new battery and it works fine. put defective battery in a second phone and it suffered the same symptoms as the first, indicating that it must be the battery.
strange as due to it closing on certain apps i though it'd have been a software error.