[Q] random crashing/system incidents

krzysk1

New member
Apr 21, 2018
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Hello,
I've got a weird problem with my M4
I've got the phone for over 2 years, it's the E2303 version. It worked perfectly normal until at some point it started randomly crashing (Note: the phone wasn't rooted at this point and it had Android 5.0 26.1.A.3.111 (carrier version)). The crash looks like this: the phone freezes for like 2-3 seconds not responding to any input, then the screen goes black, then it boots up normally. However it isn't rare for it to crash like that, then while booting up crash again in the same way, repeat a couple of times. In System incidents it's counted as just 1 incident. I also noticed that sometimes after successfully booting up after crash wi-fi, mobile transfer or airplane mode are switched on/off, not as before the crash.
I thought the problem would go away so I waited a bit, but it kept on crashing. Sometimes it can go for a few days without crashing, sometimes it crashes a few minutes after last crash.
I've tried fixing the phone using PC Companion (it also updated it to 6.0) - didn't help. I've tried flashing a stock 5.0 ROM using Flashtool (same as before: 26.1.A.3.111, but a non-carrier version) - also didn't help. Also I've got the phone rooted by now. I don't know about bootloader, the service menu tells me Bootloader unlock allowed: No, even though I've got the OEM unlocking switched on in the Developer options (I'm not that tech savvy in case of phones and I'm getting lost a little bit).

I've got some screenshots here:


I hope there is a way to fix this phone, this crashing is starting to get a little annoying...
Any help would be really appreciated
 
Oct 3, 2015
7
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Install twrp. Download latest stock rom. Format phone by wiping cache, system and data in twrp wipe option. Install flashtool and use it to install latest stock rom. Watch a tutorial on youtube How to install latest stock rom through twrp