M1569449928273 , via OnePlus 7 Pro , Apr 13, 2021 : From last year October i am facing a problem with my selfi popup camera. Whenever i'm turning on the camera the phone goes hanged. But at that time my back camera was totally okay but from today my Phone's BACK CAMERA is showing as same as problem. What could be the main problem??? What should i do at this time? Please help me out.