Database Users

[Q] Note 3 Proximity Sensor works even after the call!

Whenever I make, receive or even check my balance(which had absolutely nothing to do with the sensor), after the call is over proximity sensor still works! :crying:
Gets pretty annoying some time Later, can't work, play games, watch movies just somehow hand comes in front of it and then Sensor detects it and black out the entire screen!
Please if someone knows anything about it, I desperately need their help! Thanks. :good:

Might sound silly, but have you enabled all your Samsung Air/Gesture commands etc? -- also Smart stay/Pause?
If so, disable them.

radicalisto said:
Might sound silly, but have you enabled all your Samsung Air/Gesture commands etc? -- also Smart stay/Pause?
If so, disable them.
Click to expand...
Click to collapse
I absolutely never enable them they're off since I got my phone but the sensor still continues to annoy me!
What should I do to stop it?

there are a few thread for proximity sensors problems... search and you will find some useful information.
but in short, there is probably some dust in front of the proximity sensor.
a temporary fix is to blow some air in the earpiece... but the problem will eventually come back.
I do this once a month.
The other thing you can do is disassemble your phone, clean the proximity sensor lens, maybe add some kind of protection to protect it from dust... and reassemble everything.

zadigre said:
there are a few thread for proximity sensors problems... search and you will find some useful information.
but in short, there is probably some dust in front of the proximity sensor.
a temporary fix is to blow some air in the earpiece... but the problem will eventually come back.
I do this once a month.
The other thing you can do is disassemble your phone, clean the proximity sensor lens, maybe add some kind of protection to protect it from dust... and reassemble everything.
Click to expand...
Click to collapse
But how to disassemble the phone it must be a risky business!

sambhavmathur said:
But how to disassemble the phone it must be a risky business!
Click to expand...
Click to collapse
If you have the tools, is not very difficult...
http://forum.xda-developers.com/showthread.php?t=2488031
Sent from my SM-N900 with Tapatalk

sambhavmathur said:
Whenever I make, receive or even check my balance(which had absolutely nothing to do with the sensor), after the call is over proximity sensor still works! :crying:
Gets pretty annoying some time Later, can't work, play games, watch movies just somehow hand comes in front of it and then Sensor detects it and black out the entire screen!
Please if someone knows anything about it, I desperately need their help! Thanks. :good:
Click to expand...
Click to collapse
Try going to Settings>General>Application manager>All>Phone and clearing data.
If that doesn't help, try doing a factory reset.
Failing that, try availing warranty, or if you are Knox 0x1, try another ROM.
zadigre said:
there are a few thread for proximity sensors problems... search and you will find some useful information.
but in short, there is probably some dust in front of the proximity sensor.
a temporary fix is to blow some air in the earpiece... but the problem will eventually come back.
I do this once a month.
The other thing you can do is disassemble your phone, clean the proximity sensor lens, maybe add some kind of protection to protect it from dust... and reassemble everything.
Click to expand...
Click to collapse
His problem seems to be a software issue and not a hardware one.

FeralFire said:
Try going to Settings>General>Application manager>All>Phone and clearing data.
If that doesn't help, try doing a factory reset.
Failing that, try availing warranty, or if you are Knox 0x1, try another ROM.
His problem seems to be a software issue and not a hardware one.
Click to expand...
Click to collapse
I had the exact same problem with my device... and the problem is hardware (dust in front of the proximity sensor)...
I tried everything, including a factory reset, and the only thing that fix it (for now) is to blow some air in the earpiece.
Next step will be to disassemble and clean the sensor manually

A New Development
Before when I call or receive a call from anybody the proximity sensor still worked and turned the screen off even after the call, but now my phone is acting even more weird!
After the call the headphone jack is also not working!
Desperately need assistance guys, pls help!

Hello,a week ago my proximity sensor started making bizarre things.The screen stayed black after calls etc etc. I went to Samsung in Greece and they changed the sensor.I had the phone back after 4 days...4 difficult days because I am in love with my phone but now everything is working fine. I saw a lot of threads in forums about proximity sensor problems on this phone...too bad!

alexpsilos said:
Hello,a week ago my proximity sensor started making bizarre things.The screen stayed black after calls etc etc. I went to Samsung in Greece and they changed the sensor.I had the phone back after 4 days...4 difficult days because I am in love with my phone but now everything is working fine. I saw a lot of threads in forums about proximity sensor problems on this phone...too bad!
Click to expand...
Click to collapse
But I can't send my phone to Samsung because I rooted it and that triggered Knox warranty so I probably need some other way!
If anybody knows anything please help!

http://forum.xda-developers.com/showpost.php?p=50740216&postcount=4

Well, you could just disable the proximity sensor and turn the screen off manually by pressing power.
Phone --> Call Settings --> Turn off screen during calls.
Not ideal, but at least you can still use your phone.

sambhavmathur said:
But I can't send my phone to Samsung because I rooted it and that triggered Knox warranty so I probably need some other way!
If anybody knows anything please help!
Click to expand...
Click to collapse
mwerkz said:
http://forum.xda-developers.com/showpost.php?p=50740216&postcount=4
Click to expand...
Click to collapse
Try what he says! if this do not work then, or you have to pay to get your phone fixed or find a way to fix it yourself (buying a new proximity sensor and changing it through the help of videos).The second option will be a pain in the *** and I would never try it as I am not sure if it could go well.

Absolutly same problem i gotta
my proximity senzor is still little red Everything works fine. Like test or calls but is still slightly red. When i restart phone is black but after first call is slightly red and turn black only after restart.. but works fine. Any solution?

Approximate sensor not working at all...

Hi all!
My approximate sensor isn't working anymore (OnePlus 2), and when I searched for the reason (or solution ) on the internet, I've found this link:
https://forums.oneplus.net/threads/afx-zip-containing-persist-img-reserve4-img.198286/
I've downloaded afx.zip (with persistent.img) and just wanted to know if someone has had the same problem... And how did he fix it... Is it dangerous to flash persistent.img?
Best regards, Lorenz Demar

I had the same problem. Then i removed my tempered glass protector which was covering also that sensor. now it works as it should.

Also, having a wallet case for this phone with card holder can put the upper part to far away from the proximity sensor for it to function, that is the case with my CaseMe leather wallet case, solution is to put some layers of electric tape on the upper part inside of the case ?

Thank you guys, nothing helped. I have'nt a flip cover so I don't think this may help but thank you anyway for your time, I think I try to flash persist.img. I'll Update this post if I'm done

Ok guys please listen!!!! Do not flash persist.img it will destroy your device!!! I have no camera at all working, cpu-z says there are no sensors...

S7 Edge FingerPrint Issue Android 7

My fingerprint scanner has stopped working, after I upgraded to Android 7 (Nougat).
I took it into my Samsung store who said it was a hardware issue, it failed the self diagnostic test.
However they refused to fix the issue under warranty because the screen is cracked.
The screen has been cracked for over 5 months now, so I hardly see how they are related.
Can anyone way in on this?

jjgriffsta said:
My fingerprint scanner has stopped working, after I upgraded to Android 7 (Nougat).
I took it into my Samsung store who said it was a hardware issue, it failed the self diagnostic test.
However they refused to fix the issue under warranty because the screen is cracked.
The screen has been cracked for over 5 months now, so I hardly see how they are related.
Can anyone way in on this?
Click to expand...
Click to collapse
Well if the screen is cracked, and your phone is still under warranty, then surely they should be fixing that too ? Samsung sound pretty useless to me, and use every excuse under the sun for not fixing things, try boot to recovery and factory reset, this can sometimes fix faults after an update.
EDIT: after updating mine to androind N, the fingerprint reader is working fine, infact so far ive got no problems here at all.

Yep a long as it is a UK model and under one year old Samsung should change the screen and fix the touch sensitive button. As long as you don't have a great big dent in the case that caused the cracked screen...... I just ordered new back cover for mine as it's a dual SIM and Samsung won't repair it under warranty. They quoted £65 to change the back cover and I purchased it on eBay for £20.
I will heat up the back cover and change it myself tomorrow.
Sent from my SM-G935F using Tapatalk

jjgriffsta said:
My fingerprint scanner has stopped working, after I upgraded to Android 7 (Nougat).
I took it into my Samsung store who said it was a hardware issue, it failed the self diagnostic test.
However they refused to fix the issue under warranty because the screen is cracked.
The screen has been cracked for over 5 months now, so I hardly see how they are related.
Can anyone way in on this?
Click to expand...
Click to collapse
Try to go back to MM.
Download latest MM version from sammobile.com and flash it with Odin
Then you will know if it's SW- or HW problem

angusc said:
Yep a long as it is a UK model and under one year old Samsung should change the screen and fix the touch sensitive button. As long as you don't have a great big dent in the case that caused the cracked screen...... I just ordered new back cover for mine as it's a dual SIM and Samsung won't repair it under warranty. They quoted £65 to change the back cover and I purchased it on eBay for £20.
I will heat up the back cover and change it myself tomorrow.
Sent from my SM-G935F using Tapatalk
Click to expand...
Click to collapse
Let them do it so you keep your device's water resistance.

s7 edge fingerprint sensor error
Wanted help regarding my s7 edge fingerprint sensor. It responds just fine sometimes but most of the time it gives an error. I tried the solution of clearing cache , pressing power and volume down button together to soft reset it. But nothing worked. The funny part is that it will respond for a few while after rebooting ( restarting ) it but when it gibes the error it stops completely until restarted again. Did not drop it. Didn't place it in water. The problem did start after updating from marshmallow to nuogat and even after getting two security patch updates. Don't know what to do. Can anyone plz guide me how to use *#0*# code to check fingerprint sensor because when i check it it sometimes give that intializing failed. Sometimes if i don't put my finger on the sensor it says it passed and when i place my finger it only shows first box passed while the rest of the boxes fail. I searched everywhere on internet for but in the end came back to xda and decided to ask u guys. As i did got alot of help from u guys on my s2 and note 4. I hope that someone might try to help.

I don't know the answer, but I can confirm a similar issue with my S7 since upgrading to nougat. Also I seen to get a few apps force closing. My device is stock and not rooted. I got so fed up with the finger scanner not responding I switched back to only a pin code for a week. Now I switched back to finger print and only set up one finger print memory........now for a week it send to be working, but still getting force closes of the play store app.
Sent from my SM-G935F using Tapatalk

My galaxy s7 edge sensor can't work requiring device restart. I have restarted many times and still it doesn't work. I hope that someone might help me to fix it

Firehun said:
My galaxy s7 edge sensor can't work requiring device restart. I have restarted many times and still it doesn't work. I hope that someone might help me to fix it
Click to expand...
Click to collapse
Try to reinstall the rom stock. If the problem persists, then it is a hardware problem. Your sensor went to the bag.

Another LeEco Le Max 2 fingerprint issue

I recently purchase a LeEco Le Max 2 from aliexpress and it worked fine for the first 2 hours but after i locked it and left it on a table for a few hours and came back the fingerprint scanner wouldn't work.
After this happened to me i started to search the internet for all the possible solutions i could find like installing the original ROM and such but before i did any of the solutions it suddenly started to work again.
It started to work for like 2 seconds and then stopped again how it happened was that i had left it on my bed with the screen on and it was starting to get really hot (the room was also hot) and i started to get angry with the device and started taping the fingerprint scanner hard in the hopes of getting it to work and it started to work for like 2 secs and then stopped and since then i haven't been able to get it to work again and yes i have tried factory resetting and re calibration the scanner also i have tried installing multiple official and unofficial ROMs .
So anyway the reason for my post is to ask for possible solutions on how to fix it and also to ask what was the issue? is it the contacts or is it a defective part.

The FP problem in this phone is well documented. As are the many seemingly magical solutions folks have found for it. Search XDA and try what solutions you can find, and if those don't work, it may be the part. If it's the part, the good news is that a new FP scanner is exceedingly cheap ($6 CAD), as are most of the tools one would need to do the repair, if they do not already have them.
I posted a guide in this section here for doing the hardware replacement. No guarantees - nobody seems to know definitively what the cause of this issue is or how to fix it, but the only thing that's obvious is it's a fairly rampant problem.

it is a software issue no remplacement needed , i have post a solution 100% working

darkside57 said:
it is a software issue no remplacement needed , i have post a solution 100% working
Click to expand...
Click to collapse
Everyone who has found a "fix" to this problem has claimed that, and it's usually not even a week before someone comes by and proves they were wrong. Certainly worth trying the solution regardless, but you shouldn't make promises that aren't validated.

Heyyo, too true @TheLastCanadian (happy Canada day btw eh?) that some may get lucky with a software fix but most require a hardware replacement to resolve the problem 100%. Your guide btw is very well detailed and as long as anyone follows it to the tee? They should be safe too.
I'm unsure how old your LeEco Le Max 2 is, but it might be cheaper to just replace the FP scanner yourself than to send it back to China for a replacement as they would probably request you to pay to ship both ways...

Thanks!
I think this is a quite late reply but first i would like to thank @TheLastCanadian for his/her comment. I already knew the thing about replacing the fp scanner which you can get on aliexpress for just under 6€
but the issue i have is that i don't have the tools to do it but even if i had them and even though it seems really easy to do as shown in multiple guides i have really shaky hands and wouldn't trust myself to do it in the
fear that i would just snap the phone in half.
Also another question recently my bottom buttons stopped working on my phone and even after factory resetting they still wouldn't work (read online that it might be a software problem)
after that i thought that maybe it was the heat wave hitting my country that caused the buttons to break/stop working but still i wanted try one more time so i cooled the phone in front of
a fan for a half hour and then tried installing the original OS (the OS that i was using was the PixelExperience for LEECO MAX 2) and then it suddenly started working. So the point of this was
to ask was it a problem with that OS or was it the heat by the way even when the buttons didn't work their light was still on.

Heyyo, for the hardware buttons? It is usually a software issue yes unless the phone was dropped and screen is cracked on the bottom half of the screen (I had that happen and the replacement screen came with new hardware buttons and they worked perfectly).
For FP reader? I guess if you're uncomfortable with doing it you could ask a local mobile phone repair shop to fix it... But they might charge you quite a bit so I'd ask for a quote and link TheLastCanadian's guide so they have an idea on what they need to do.
It's honestly not too bad repairing a Le Max 2. For me, heating up the phone enough and separating the screen was the toughest part as that adhesive tape they use is REALLY adhesive and the phone was quite hot to the touch to finally get it to separate with my suction cup.
In the guide that TheLastCanadian posted he linked a very cost effective kit that is even more fancier than the random parts I had heh so I'd recommend his linked toolkit if you want to give it a go.

Hey i know it been quite while but wanted to leave an update about the fingerprint scanner issue so here it is.
I usually wipe and reflash my phone with a cfw every few months but decided to do it now even though i already did it a few weeks ago because i downloaded and ran some infected ****.
Well guess happened?? IT WORKS NOW!! the fingerprint scanner suddenly started to work again as i was setting it up. I don't think it the cfw because i'w installed it multiple times before
and the fingerprint scanner never worked but now it does, maybe its because of its hot in my room? ¯\_(ツ)_/¯
I think its really likely to do with heat or something because the last time i got it to work for a few sec was when i first got it was after i had played some games and watched some vids in my room
which got it burning hot. Will update if it stops working again
The cfw that got it to work was the newest version of PixelExperience for LEECO MAX 2
https://forum.xda-developers.com/le-max-2/development/rom-pixel-experience-t3734990

Fingerprint Sensor - HW or SW problem?

Please forgive this annoying question, but I recently dropped my K20 (and myself) in seawater in a boating "accident" and, obviously, the phone stoped working immediatelly. Opened it, dryed it, cleaned it with IPA, to no avail.
Then, after 10 days, it came back to life. The only thing not working was the FP sensor. So I bought a new one, but the phone still doesn't recognize it. I remember a problem with some phone in the past that when the FP sensor was replaced, it would not recognize it before resetting some partition or something. Does anyone know anything about it? Maybe the new sensor is busted as well, or the connector from the bottom PCB to the upper one is damaged, I know, but any information would be appreciated.