Isn't this the same as as the camera re-focusing on a certain area in its view field? Mine does that to the front and back cameras. Or are you guys talking about something else?
To be honest it sounds like you didnt stand your ground. When he was talking about the rear camera you should have immediately corrected him. It sounds like you let him do all the talking and then just left with your tail between your legs. You are the customer!
Isn't this the same as as the camera re-focusing on a certain area in its view field? Mine does that to the front and back cameras. Or are you guys talking about something else?
I have the exact same issue and is documented on this video here. (skip to 2:40 onwards)
I didn't see a genius. I called AppleCare. They replaced my iPhone and the replacement works great.
With my issue, it was very easy to reproduce it. If I'd had to show it to an Apple rep, I could make it freeze, flicker and crash on demand. All it took was rapid light changes - I could put my phone under strong light, and use cardboard to repeatedly cover and uncover the front lens quickly. Within 30 seconds, it would turn purple, black, flicker, and then the camera app would just close.
For those having trouble convincing a genius, pick up the phone and call Apple. Or ask for a manager at the store. Yes, it will help if you can make it crash and flicker while you're there. If they say it's normal, do the same thing to a display unit to demonstrate that it's not normal.
My 2nd or 3rd 4S replacement did this. I was SO pissed off because everything else was perfect. But everytime i would use the Front camera, it would start flickering black, and then freeze...and eventually crash.
I used it this way for about a week, then i started getting some wicked Predator colors. Like a video card artifacting from overheating.
Then i really had to take it to apple. No choice at that point. The Genius got a kick out of it.
I made a post about it a long time ago. Its not software, its a bad FFC.
Get it replaced!
if your front camera is flickering, you should get it replaced. my 4S flickered for a few hours until eventually it flickered an image like an old school tv with no signal in either all purple, all green, or all black. the apple store people told me it was the first they'd seen of it but i know it's not because people complained the same with the iphone 4. anyway, they replaced it and the replacement phone is working good so far.
Mine also flickers during facetime only