Hi, I am new here so not too sure which category to post under. I recently purchased an iPhone SE which works fine however when I use my fingerprint to unlock the phone the top left hand corner were the main page comes into focus always stutters a little. Its extremely annoying and I am not too sure if it is a software bug or the actual fingerprint sensor feeding erratic information to iOS...? I am running iOS 9.3.5. When the phone was first purchased it was running 9.3.3 and had no issues during the unlock. It's only after I flashed the phone with iOS 9.3.5 from two different sources and restored my backup that this started happening.. I'm coming up to the end of my 14 day try period and not too sure if I should take the phone back or not? Thanks!