Proximity sensor troubles - Galaxy S 4 Q&A, Help & Troubleshooting

First of, I have to mention that I had no problems with a stock samsung rom or any touchwiz based rom. The problem is with the CM/AOSP based roms.
When I get a call, the screen goes black. I am unable to even see who is calling me. It works fine with a earphone in place
But what I discovered with SlimLP is that I am able to see my screen when I receive the call, thus allowing me to pick up the call but once the call has been picked up, the screen goes black and I am unable to use in-call options or even end the call.
It would be really helpful if someone can find a fix to this as I have tried several ways to fix the proximity sensor issue. I am not sure where the problem lies in as I have tried installing every custom rom there is and the result has always been the same except for SlimLP.
Thank you!

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flash light switches on unwanted

I have a weird bug on my wizard. like the title says, the flash light just switches on randomly. luckily only at a very low level, but still, its an unwanted powerdrain. I can switch it off again by starting the camera and switching the flash on and then off again. I had this using NBD 8.1, also after reflashing it with that, and also with the latest TNT ROM. Is this a known problem? I have never managed to find any information on it.
another problem is that i was missing calls, which could be solved now by using the TNT rom. but the problem was that my phone would seem to work just fine, i could make outgoing calls, but i was missing incoming calls. the phone wouldn't ring, it wouldn't show any missed calls and the other party wouldn't notice anything wrong either, it would just give the normal tones when you ring people. Is this a radio ROM problem? It seems to have started when i moved to the netherlands, i think it was never a problem when i lived in germany.

[Q] Receiving Calls when headphones in (7392 update)) [Solved]

Good morning,
This is my first post. I have recently downloaded and flashed Yukis (7392) ROM updated on 5/16 and for some reason when someone calls in, and I have the earphones in, the person calling gets a fast busy signal. The Caller ID will splash on the screen and instantly go away as if slide screen was activated and the ignore button was pressed. I want to say this is a ROM issue for the last ROM I used (HD20) would attenuate the sound and the call would come thru. I havent tried any other 7392 ROMS to be sure, Just wanted to know if anyone else had this issue with Yukis ROM. And, if we do find it to be a ROM issue can someone inform yuki as I can not because my post count is too low.
Thanks,
Dirty
UPDATE:
Looks to be a Update issue. I just tried it with HD20 rom with the same results. Am I the only user seeing this? I searched the FAQ and I did not see anything stating that this is a Bug. ???
Resolution
So i played around with this for a While and it seems that if you turn off both options in the "Ease of Access' menu then you will be able to receive calls with the headphones plugged in. This also works with mic'd headphones as well.
Thanks,
Dirty
I hadn't even thought of this! I usually turn those options off & hadn't when I switched roms. I'm going to try this when I get home and let you know if it worked for me as well.

[Q] CM11 bugs and solutions

Hello,
yesterday I installed the last nightly snapshot of CM11 on my LG G2 but I noticed the following problems. I hope you could suggest me a solution for them.
During a call, the proximity sensor detect my face and turn off the screen. But when I finish the call or simply when I move the phone away from the ear, the screen remain OFF and I need to double tap to wake it up. I don't think this is an expected behavior.
When I receive an email or SMS/Hangouts, the notification sound looks to be fragmented. The sound starts, then interrupts for some milliseconds and then start again. This is annoying.
No radio nor IR in the ROM. I know, I'm on AOSP kernel, but I really guess that a custom rom for a specific device have to carry on ALL hardware features itself, without to flash or to modify further.
Apart this, CM11 is a GREAT rom.
Can you help me to solve my problems with CM11?
Thanks :victory:
I also suffer from issue #1 and issue #2 immedietely after a phone call ends. The normal tap sound becomes a buzz sound but goes away in less than 30 seconds.

[Q] microphone issue

So I know there are other threads with the same issue but mine is a bit different. I found out that when I'm talking to someone on my lg g2(d802) cellphone they can't hear me so I tried everything and I found out that they can hear me perfectly when I turn on the speaker mode while calling(getting the persons voice played through the phones bottom speaker), so I think thats really weird because my microphone won't work without a speaker mode on while calling. It's not a rom related issue because noone using rom FR 2.0.1 Didn't had this problem and also idk if this is related with this but in the recovery I'm unable to flash any zip and also first time when I installed the recovery i updated it with flashing new recovery 2.8.4.0 and my phone somehow automaticly downgraded it to the one i had before and I'm unable to flash new twrp recovery/viper4andoid/etc... Error message is different every time which is also weird. For example for twrp it is something like asster failed(run_program). Idk if that is related with microphone issue but I wanted to provide all data. Also I have a KK baseband. Thanks for reading.
I have the same problem "reversed" .
On speakerphone my microphone doesn't work. No matter what rom I use.
Would be nice if someone has figured it out.
It's weird. I tried everything and still the same problem. It appeared just after I flashed a new rom and I tried going back to stock and still the same issue
hi, sorry for my little english.
my lg g2 d802 4.4.2 had this problem, they can hear me but like i'm far away. try to stop voice control in all pages in Google search.
when i had this problem vocal and video record don't go, it appears i'm using microphone on another app. i stop vocal control and the phone now i going better!
"ok Google" in all page its very confortable but if the phone still dont call, nothing to do!
mach2005 said:
I have the same problem "reversed" .
On speakerphone my microphone doesn't work. No matter what rom I use.
Would be nice if someone has figured it out.
Click to expand...
Click to collapse
Had this issue on an iPhone and a Windows Phone. Microphone is probably shot. Different mic used for when it is on speakerphone compared to calls. Usually cannot record video audio either...sucks.

Call audio issue

I've been having an issue with audio on phone calls. Everything works fine when I make a call, but if someone calls me I can't ever hear them. I always have to tell them to hang up, then I call them back and it works perfectly. Toggling speakerphone doesn't help at all.
I'm currently having the issue on LOS 16.0, but I had it on AEX before that.
Anybody found a solution to this issue? I had heard something about turning off Google voice functions, but honestly I'd rather go back to stock than give up voice commands..
Some articles I've read have a couple of different ideas.
1) was to disable the double tap option.
2) was the proximity sensor, try on you left ear instead of the right ear.
3) is the finger print scanner, resting you finger against it causes the lockout.
I don't know if any of these work, but I've had the same issue and its only the incoming calls (apparently a known bug)
I'm running B15 Oreo, B13 Oreo had the same issue.

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