For a while now, I’ve been having issues with my Poco X4 Pro 5G. Out of nowhere, it started giving me a bug where the screen flashes every time I lock it and then it won’t turn on. However, it unlocks but the screen flickers or goes black. I have to wait a while or force restart it for it to work, but I don’t know what to do anymore; it’s become so common. I’ve noticed that when it gets like this, a message appears that “System UI NOT RESPONDING” and another that says “The SYSTEM PROCESS IS NOT RESPONDING.” Additionally, since it started, when I lower the brightness to a certain level, some divisions appear on the screen.

I don’t know if it’s a screen problem or directly a software problem. HELP!