I have a Samsung S7 Edge running /e/.
A while ago the battery died. I bought a new one (not original) and replaced it by myself.
3 months later (now), the mobile started to shut down abruptly by no apparent reason. Sometimes it shut down during boot.
I have the impression that it could be a battery issue, but it may also be a electrical bad contact or a system problem.
Does anyone have a suggestion on how I could start to diagnose it?