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Help proximity sensor questiin

Guys I am about ready to jump off a bridge with the troubles I've been having. It appears my proximity sensor is shot!! This Note 2 is 2 days old. The screen stays on when placed next to my ear regardless of whether the "auto screen off during calls" is check marked or not.

I'm really upset right now, I just tonight got this thing all set up and everything...with exception of the above mentioned works great!
 
DO you have any kind of screen protector that may be covering it? What if you cover it with your finger?

If that doesn't work (as well as the above comments), back up data, and do a factory reset. If that doesn't fix it, its a hardware problem, and needs to go back.
 
Morgus is right...screen protector can for sure mess it up or even a speck of dust. Does your Quick Glance work? Might want to test that as well.
 
No screen protector, no case, no damage. Covering sensor with finger tip does nothing during call, screen stays on. Guess I'll do a factory reset right now, I'll report back...Seriously I am so upset right now, if this device is bad that makes for the second bad Note 2, not to mention the 2 overheating LG Optimus G's I tried.
 
Damn, im sorry bro. Do report back after your factory reset, but im sorry you have had such bad luck.
 
Hi got the note 2 N7100 and after installing cyanogenmod the proximity sensor seems to turn the screen off during calls and not turning the screen back on when i remove the phone from my face. I've did a stock rom restore and a full unroot and factory reset. yet this problem is still there. However it only occurs in low light areas. Please help!:(
 
I am facing 2 problems since 4.3 update. Have also done factory reset after update.
1. Pop-up browser is gone
2. Proximity sensor not working while ongoing call.

I read in some other forum that blowing on the ear piece will clear dust on the sensor. And to my surprise it actually worked. The sensor started working again during the calls. But still not as perfectly as before. I dont know whether this is a lasti g relief or not. I also dont know whether this is a hardware problem or problem with android 4.3 from samsung.
My phone has become quite slow and sluggish also after the update and it seems my phone is always short on RAM with the same number of apps that were there before the update to 4.3.
Planning to instll custom ROM to see if that solves my problem.
 
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