the Paperclip fix or the DIY sticker.
Last night i have been trying to repair a proximity sensor and reading here a lot!,
until late, and finally i did it. i found out a similar, cheap and easy way to repair it.
i have just done another one and are both working fine. very very easy going have a look.
take any camera (this was not working using an ipads 3 camera dont know why?) and have a look to check if there is a white light coming out from IR sensor while doing a call, probably it will. if there is not light check the conector or try another flex.remeber dont test with an ipad camera, didnt worked for me :) remeber sensor is on, only while doing a call. you can use an app called " sensor monitor" its free on the app store, is perfect if you dont have the carrier sim and the phone is network locked. this app is spacially for hardware testing, i have read it probably before someone post it? cant remember, very usefull app ;)
ok the repair: once you have taken apart the screen, you can see the sensors,
take black tape, cut a small scuare, about a bit bigger to the size to cover them, to be sure they are completely covered. dont put yet the tape on the phone.
now take a for example paper clip and bend it (like the one you use to take sim out), this is how i have done it and works, burn the extreme of the paper clip with a lighter. once the extreme part of the paper clip is hot (red) place in the tape and let the heat from the metal make a little hole. make very smal rounds with your hand just to make it a bit bigger. make the same close to this one, and now you have a small black sticker with two hole.
place this small scuare tape with these 2 holes over the sensors.
put the screen back and test it.
Hope it works for all of you too!
next ill try to put the tape on the glass to check if it works the same without having to open.
great place iFixit.
i have been doing a lot of proximity sensors repairs with tape and 2 holes.
now im using a soldering iron to make the holes in stead of the clip.
if you can see the white ir light above the earspeaker,
using anocher iphone camera then the problem is that ir sensor gets to much light.
last night i have been working on an iphone 4 that proximity sensor was working fine without the screen mounted (testing with long orange flex),
but it was not working with the tape and 2 holes and screen mounted.
this screen it was a little scrached on the glass near the area from proximity sensor.
Finally i fix it covering with tape the ir light hole. only the ir light, not the sensor itself.
i mounted the screen and proximity sensor was working.
if you can see the white light from ir sensor (remember using a camera), then the problem is that receiver gets to much light.
i covered the ir light and sensor is working.