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[GUIDE] S4 Proximity Sensor Fix (Blank Screen During Calls)

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it was driving me nuts! this worked and thanks so much!
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Originally Posted by djdivan View Post
This guide solve my problem.
I noticed about the problem when flashed AOSP based Rom. So, thinked it was a rom bug.
Then, flashed stock again and find the issue was still there.
After trying whit compressed air, and nothing changes, rooted my phone (again) and follow this guide, and proximity sensor is working again.
I am glad it worked for you. I have heard that this is a huge issue for the S4. Not sure about other models.
S4 Proximity Sensor Calibration Guide here

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Manual method worked perfectly fine. You SAVED my LIFE! Tons of thanks from the Philippines!
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You're awesome! Been using this phone without a proper sensor for almost a year!
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(Last edited by parrotheadmjb; 29th August 2014 at 09:18 AM.)
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Originally Posted by Skipjacks View Post
I believe it's only in TouchWiz roms.

Cleaning the dirt out of the sensor is the only long term solution to fix it. But even then it's not permanent. It will eventually get dirty again.
I'm using an AOSP ROM ( and worked for me.

But the point of my post (and I have the Verizon edition BTW) is to say THANK YOU! I got to the point where every time I made a phone call I knew almost certainly my screen wouldn't turn on and even half the time hitting the home button wouldn't do the trick. I know the issue is my otter box defender series, which never caused this problem until about a month or two ago. But I need the otter box and this fixed my problem... Thank you thank you! No more random voice mails from me because my screen won't turn on haha

Edit: For those on AOSP, if you type the value in the calculator, swipe left and hit HEX, it will give you the hexadecimal value you need
(Last edited by red_five_1976; 29th August 2014 at 06:58 PM.) Reason: adding smilies
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Ever since I flashed any custom ROM on my tmo S4, the proximity sensor hasn't worked right. Screen would never wake after a call ended, even the app I use to keep the screen off in my pocket (Gravity Screen, pretty cool app) wasn't working. I used the little app referenced in the OP, and it all works again! Thanks!
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