Have taken samsung m31 yesterday, have taken samsung m31 yesterday, whenever I am making slow motion and super slow motion videos. It then begins to blink. The same problem is found for both A series and M series. I realised where Samsung is loosing its market they carge more than redmi and realme but the M series is a straight competition 1) box does not come with back cover and m series needs it badly 2) processor = although I love samsung processor it has heating issues . It need to put to snapdragon to catch its market back 3) plastic back= phone gets lot of scattered and looses colour over time 4) pricing is too high Rest all makes it better than redme realme and all other chinese brands. Samsung plz change these stuff and get more productivity in the market its a really good brand but if this continues uall loose the market soon like nokia did. Save it although rest all stuff is really very good .