Proximity sensor not working after screen replacement. Iphone 4

I usually never write in posts but you my friend, rbrylawski really made me want to say something.

first of the guy did not ask you what you thought about him replacing the screen. second Apple does charge 199 dollars to fix a broken screen which is absurd.

ive replaced a couple hundred iphone screens in the last few years and I beleive it is a better alternative than paying apple for thier outrages support prices. second the iphone 4 screens that are sold on ebay are the same exact ones in iphone 4's. straight from fox conn in china. and apple doesn't even check to see if you replaced something. they simply swap it out.

so kudos to lcukyduck to replacing his screen and goodluck with finding a solution, maybe you left a piece of plastic cover on inside. also most ppl forget to replace the little plastic piece that goes in the inside right by the proximity for the flash.

you aren't out of luck.

rbrylawski - get out of apples *** its just a cell phone and we can do whatever the heck we want with it.

Good on you, I am having the same problem after replacing my screen (purchased from China for $39.80) I was an electronics tech by training so was no big deal. I did have a little strip of plastic leftover from around the camera, are you saying this could be the cause?

Cheers, and well said

Did you find the problem?

i just made this tutorial on how i fix this problem. So far its worked like a charm.

https://discussions.apple.com/thread/3257072

My 2 cents here: I have replaced the sensor/ microphone/ lock switch array and found that there is a small lens on the original proximity sensor (a smal color changing tinted plastic). If that little piece got stuck to the original screen with the small foam piece holding the sensor, the replacement won't work at all. Once I replaced the lens on the new assembly it works perfectly. Hope this is useful to any one.

I shattered my Iphone 4 screen. However; my screen still worked just fine. It was only the glass that was broken.

I ordered a replacement screen and after disassembling the entire phone, and at the beginning of reasssembly, I found the the prongs or connectors whichever you call them did not match up. When comparing the two screens, I noticed that my Verizon Iphone had the prongs in the corner of my phone and the replacement screen had them a little lower down on the screen. Just a slight difference. So, I could not use the screen new screen as it would not line. I then chose to reassemble my phone with the broken screen. After assembly was complete, I powered up my phone to find that only the bottom half of my touch screen worked. Why is it doing this? And how many versions of the screens are there? I am thinking mine must have been the AT&T version which is constructed a little different than the Version Iphone4. Any thoughts on this would be very much appreciated. 🙂

try going to settings,genral settings,reset all settings if that doesnt work use electrical tape over the proximity sensors because usually replacement glass lets too much light in to the sensors.

Im just leaving this comment for anyone who wanders across this forum looking for a solution, BEFORE trying restores, and wiping your phone/data, odds are that the tinted lens that covers the proximity sensor is missing, hopefully if you did your own replacement, you still have your original parts, and if you didn't take your phone back and have the repair shop fix your phone. Also, kudos for doing your own repairs!