Chosen Solution
After booting display work for few seconds or minutes and then start to glitch. Buttons work, sound work, but display doesn’t work. But few minutes after it can start work for few second (so I assume that problem is not in display), and then again doesn’t work. Please help me to understand, by which issue it may be caused. Thanks for your answers
Taras Chornyy attach an external monitor and see if that does the same. If it does you know that it is most likely your GPU. If it does not it’s most likely you LCD
I think it might be a faulty/overheating GPU.
