iPhone 5s randomly turns off/shut down.
I have an iPhone 5s that keeps shutting down randomly, several times a day.
I have tried 2 new different batteries. But same problem.
When plugged in charger it starts again with a lot of remaining battery.
When replaced battery i did the battery calibration.
Draining the phone to 0 %, charge to 100 % and force restart.
Any ideas what this is.
I replaced the battery in the first place because i started have the problem with it shutting down a 30-40 % power.
Is this a software issue??
Picture iphone 5s
Is this a good question?