macbook air a1466 white stripes

Hi!

I have a Macbook Air 2015 (model A1466). I bought it in the last week. When i was using it in the morning, it started to show some white stripes in the screen. Sometimes have lass stripes, sometime more. I don’t dropped it. I reseted the SMC, make a diagnostic, and don’t show anything. The stripes are dynamic, they change the intensity - that’s the reason that I don’t think it’s a LCD screen problem.

Well, sometimes the screen stay very white, like a picture with a big exposition - that happen when the processor get 100°C (or 212°F).

He stayed off about a few hours, and when I was starting it, he wasn’t with any stripe. When it came back to 212°F (basing in temperature of app Macs Fan Control), he stayed with your image in big exposition (like I told before).

I waiting the delivery of a original power adapter (the last owner was with a unofficial), and i will change the thermal paste. I’m thinking the problem is happening because it’s overheating.