Display random "stun"

[JunimMB]

Hello.

I'm having some issues with my Xperia Z3.
After I formatted my phone (twice) I got some strange behaviors.
When I try to do anything, my display does a flash, like a "stun" or a little reset for less than a second, randomly. Even doing nothing, staying still, it keeps doing the same thing.
It's enough to: Pause a video I'm watching; Stop a video I'm recording; Pause a game I'm playing; Cancel an audio I'm recording, specially in whatsapp. I don't know what to do. I switched my microSD and it keeps doing it.
Have you guys some tips or experienced something like that?

Best regards

[Uliwooly]

@JunimMB

That's rather odd, could you test your device in safe mode

[JunimMB]

@uliwooly

It happened with a much less frequency.
I already watched like 20min of video and didn't happen a thing. However, I tried to play a game and it happened twice during the gameplay.

I also tried to install The PC Companion, but it gave me an error message "The procedure entry point SetDefaultDllDirectories could not be located in the dynamic link library KERNEL32.dll."

[Uliwooly]

@JunimMB

that's an issue with your computer, you can google it, but do install XC instead

Xperia Companion (XC)

Software Repair Guide

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355