How long did the screen flicker last? If it went back to normal, it can be tricky to determine the cause. Since the replacement is already in process, I'd continue with it, set it up when it arrives, then factory reset your current phone and then continue to use it during the grace period prior to the return deadline to see if the flicker returns (and this time just set it up as barebones as possible, installing only apps that are very widely used). If the screen stays normal, then factory reset it again and send it back, and make sure the replacement is set up in the same barebones way. If that continues to look good after maybe a week or two, then start installing your other apps one by one, maybe every few days, and watch closely for any screen glitches.I'm just curious to get your guys' opinion. Do you think I should cancel the replacement order? Or just go through with it? Since this phone malfunctioned once before. Maybe it would happen again? But it's totally been acting normal all day today so far.