L1520 randomly flickers and freezes.

[okizen]

My phone randomly flickers and freezes at any time, forcing me to reboot. I don't know what the problem could be. I've made a short video of this but don't know how to upload it to the forum.

 

[Teo Bartulovic]

What OS you are running on it? 8.1 I guess? Or some instance of technical preview for insiders?

 

[okizen]

The problem exists on both 8.1 and 10 though 8.1 appears much worse.