I've had my iPhone 5s since November and I've noticed that the screen occasionally dims a bit when it's on full brightness. It's not a huge issue at all, in fact when it dims it's barely noticeable, but it's just been annoying me lately. Does this happen to anyone else with an iPhone 5s? Other than this issue my phone is perfect.
Added (1). And I've also turned auto-brightness off so that's not the issue.
Read more: Why does the brightness on my iPhone 5s dim randomly?