Issue with Proximity Sensor during calls

Having the same problem. No bumper. I did a test and held the phone to my ear then slowly angled the speaker away from my ear while keeping the mic on my cheek. Only got 3/4" away when the phone turned back on. This is a problem.

I have this issue too...didn't understand why I was hitting numbers and hanging up on my GF last night..then I found this thread.

So no yellow screen
But I have this
And signal degradation on lower part of phone holding

I love my iphone but this is so super annoying.

What a buggy phone. Has definitely tempered my excitement.

I am having the same issue with my iPhone 4. On a call I either hangup, mute or one time initiated another call with on a call while walking down the street. I have tried the reset all settings issue without any positive results. I just hope this is an issue that can be resolved with a software fix.

I'm not using a bumper or any kind of case. Resetting all settings does not seem to have corrected this issue. My phone is behaving similarly to the one mentioned above where even just rocking it without taking it away from my ear is enough to reactivate the screen.

We've heard this "it's a display issue with the bars" stuff. I'm dropping calls. From 5 bars to a drop.

http://www.youtube.com/watch?v=DmDtOao36Mc

If you look very carefully about a 1/4 inch above the earphone port you can see the outline of the proximity sensor. I placed a call, then experimented with holding my thumb above the sensor to see when the display blanks - on my phone at about 3/4 to 1 inch away the display blanks.

Seems about right to me, I have also not had any issues during calls.

Message was edited by: judds

Again, many people have reported a "fix" for this -reset the iPhone:

Settings -> General -> Reset -> Reset All

You'll have to redo personal settings like wallpaper and ringtones, but it reportedly fixes the sensor problem. ; )

I too have suffered the proximity sensor issue and returned the phone to Apple Regent Street. They hadn't heard of the problem, and gave me a new phone... which - once I'd restored from the backup - exhibited the same problem.

Have tried the 'Reset All Settings' route and will report back. Shouldn't take long as I've muted 6 people and dialled someone with my ear during the last 5 hours... lol.

I've had the same issue. I will use the phone next to my face and then the Facetime feature will activate, putting the user on speaker phone. This is very strange. I never had this issue with my iPhone 3G.

Reset All Settings and during the first call I subsequently made I put the caller on hold without taking the phone away from my ear.

Hmmm. Think we'll have to wait for a software fix - not a hardware problem as I switched handsets.

I'm also seeing the issue and don't have the case. Ended up hanging up on someone 3 times in what should have been a 30 min call.

I guess the reset didn't help my wife's phone that much.

Well today I've made 10 phone calls (for work) and ended up messing up 8 of them by putting the caller on Mute/Hold or ending the call.

This is crazy ! I never ever had this issue on the 3GS.

Going to have to use a headset next week with the phone as I can't continue in this way..

And if Apple don't fix within 13 days then I shall have to send the phone back (to make sure I'm within the return period)..

How can they have got something so basic wrong !

I think this is not so much a defect as it is a change. Previous models without the front facing camera have allowed people to hold the phone in the general vicinity of their ear, but now since the front camera is located where the old sensors were you need to keep your ear directly over the ear speaker.

My dad told me about the same problem as reported in this thread but i confirmed his sensor is working by moving my finger by in and away. It just seems like there is a lot less leeway now for triggering it. I've been making a conscious effort to keep my ear directly over the ear speaker and I haven't had one issue yet. I know for a fact he always holds his phone very loose and even angled away from his head just because he's always doing about 15 other things at the same time as talking.

Maybe Apple can adjust the "pulling away" aspect of the sensor to have a short delay before reactivating the screen.

I am also experiencing this problem. 😟