Internal Speaker very quite while phoning - One (M7) Q&A, Help & Troubleshooting

Hey there,
i have a problem since i got my One (april) but it seems to geeting worse. If i am on the phone its sometimes really hard to unterstand my partner because the speaker is so quite. I do not mean handsfree phoning, its just the internal speaker. It happens with all kinds of roms (rooted
+ s-off). Whats interesting, is that if the call is quite, and i go for handsfree it es quite as well, so i thinking about a software issue.
If i listen to musik the speaker is fine.
What could i do to search for the problem ? My phone is on the first hboot and running android 4.4 android revolution 41.0
any tips for me ?
thanks!

nympda meaning
Havoc2k said:
Hey there,
i have a problem since i got my One (april) but it seems to geeting worse. If i am on the phone its sometimes really hard to unterstand my partner because the speaker is so quite. I do not mean handsfree phoning, its just the internal speaker. It happens with all kinds of roms (rooted
+ s-off). Whats interesting, is that if the call is quite, and i go for handsfree it es quite as well, so i thinking about a software issue.
If i listen to musik the speaker is fine.
What could i do to search for the problem ? My phone is on the first hboot and running android 4.4 android revolution 41.0
any tips for me ?
thanks!
Click to expand...
Click to collapse
Would be interesting for me too, since i have exact the same problems with my business phone!

Havoc2k said:
Hey there,
i have a problem since i got my One (april) but it seems to geeting worse. If i am on the phone its sometimes really hard to unterstand my partner because the speaker is so quite. I do not mean handsfree phoning, its just the internal speaker. It happens with all kinds of roms (rooted
+ s-off). Whats interesting, is that if the call is quite, and i go for handsfree it es quite as well, so i thinking about a software issue.
If i listen to musik the speaker is fine.
What could i do to search for the problem ? My phone is on the first hboot and running android 4.4 android revolution 41.0
any tips for me ?
thanks!
Click to expand...
Click to collapse
skyfury said:
Would be interesting for me too, since i have exact the same problems with my business phone!
Click to expand...
Click to collapse
Their is a feature in the phone that lowers the volume of the ringtone when you pickup the phone ... it may be interfering with normal operation ..try disabling it
it's in Settings / Sound / Quiet ring on pickup and pocket mode

clsA said:
Their is a feature in the phone that lowers the volume of the ringtone when you pickup the phone ... it may be interfering with normal operation ..try disabling it
it's in Settings / Sound / Quiet ring on pickup and pocket mode
Click to expand...
Click to collapse
Trying that. Thanks for ur hint!

clsA said:
Their is a feature in the phone that lowers the volume of the ringtone when you pickup the phone ... it may be interfering with normal operation ..try disabling it
it's in Settings / Sound / Quiet ring on pickup and pocket mode
Click to expand...
Click to collapse
sadly this did not help

Havoc2k said:
sadly this did not help
Click to expand...
Click to collapse
well their are a couple of other things .. there's a tiny mic on the backside of the phone that tells the phone your in a loud environment and to raise and lower in call volume, theirs a tweak to override it somewhere here on the forums .. I'll look for that. EDIT Found it >> http://forum.xda-developers.com/showthread.php?t=2406524
The other thing is the actual speaker grill can get plugged up with debris have you tried cleaning those tiny holes ?

clsA said:
well their are a couple of other things .. there's a tiny mic on the backside of the phone that tells the phone your in a loud environment and to raise and lower in call volume, theirs a tweak to override it somewhere here on the forums .. I'll look for that. EDIT Found it >> http://forum.xda-developers.com/showthread.php?t=2406524
The other thing is the actual speaker grill can get plugged up with debris have you tried cleaning those tiny holes ?
Click to expand...
Click to collapse
applied the mod. did not help as well.
I think theres really some sort of HW issue, because of all the different roms i used to use there was no changes.
maybe there is some sort of mini speaker in there with a problem, or a amplifier problem

Havoc2k said:
applied the mod. did not help as well.
I think theres really some sort of HW issue, because of all the different roms i used to use there was no changes.
maybe there is some sort of mini speaker in there with a problem, or a amplifier problem
Click to expand...
Click to collapse
I just read the whole thread ..seems that fix is not working on kitkat

Related

[Q] In Call Speaker Problem......................

Dear All,
Hi, I am new to this Forum, I have brought GT_I9000, a week ago and found out in call speaker problem.(may sound wierd by now....), i am new user can i know wha can be done to solve this issue. i am having foryo.
Thanks in advance...........
suvarna
Can you specify, what exactly your problem is?
This weekend, I had a speaker problem as well - when I phoned someone, I didn't hear anything, although the connection was established - after a reboot, the problem was gone...
Kind regards,
ww
webwude said:
Can you specify, what exactly your problem is?
This weekend, I had a speaker problem as well - when I phoned someone, I didn't hear anything, although the connection was established - after a reboot, the problem was gone...
Kind regards,
ww
Click to expand...
Click to collapse
When i recieve calls in outdoor environment, the volume is very low, its difficult to hear. the volume of the earphone speakers s very low. but when we use the headset to hear music, the volume is fine.
suvarna
I am making a wild guess have you installed any call recording app which is running in background, this may be the problem.
In Call Speaker Problem
Its a New Unit have not installed any applications till now. what about you people how is the volume in outdoor.
i had the same problem a few time since js5 firmware. an interesting thing is, that im using a voodoo kernel with every firmware since js5 and perhaps this causes this problem to european devices ?!...
ldsuvarna said:
Its a New Unit have not installed any applications till now. what about you people how is the volume in outdoor.
Click to expand...
Click to collapse
didnt read this before posting my thoughts. but i have the same problem anyway.

[Q] Phone Call Problem! Pls help out!!

Hi!
Everytime i get or make a call i cant hear my "call-partner"...when i turn speaker on i can hear him perfect! He can hear me also perfect the whole time! When i click on Volume up it shows "Headphone volume" and the over the headphone i can my call-partner. So i guess my phone thinks the headphones are connected?! But... my media player works normally over my speakers and my phone rings, also....
pls help me out...its now almost 3 weeks, that i always have to make calls over the speaker and i flashed every possible firmware...from stock ginger to cyano to miui back to a ginger-rom and and and ....
now im on Miui, cause my phone also goes black during a call and on MIUI i can turn off my proximity sensor
somehow my phones sucks :/ but i love SGS !!
Thanks for the help!
Please help me somehow...write ideas or anything...
how can i test my normal "earspeaker" is its still working?? is there a app?
pls write any ideas!!
.passi. said:
Hi!
Everytime i get or make a call i cant hear my "call-partner"...when i turn speaker on i can hear him perfect! He can hear me also perfect the whole time! When i click on Volume up it shows "Headphone volume" and the over the headphone i can my call-partner. So i guess my phone thinks the headphones are connected?! But... my media player works normally over my speakers and my phone rings, also....
pls help me out...its now almost 3 weeks, that i always have to make calls over the speaker and i flashed every possible firmware...from stock ginger to cyano to miui back to a ginger-rom and and and ....
now im on Miui, cause my phone also goes black during a call and on MIUI i can turn off my proximity sensor
somehow my phones sucks :/ but i love SGS !!
Thanks for the help!
Click to expand...
Click to collapse
Maybe there is some trouble with your Headphone input detection. Have you tried to use a headphone with it? Do you have sound then?
Thanks for the answer!
Yes, when i put my headphones in, i can hear the voice of the "caller" and i can hear music....but when i put the headphones out again, i cant hear him.
So i thought, perhaps my phone thinks that there are always my headphones plugged in.... but my music player plays sound through the speakers....strange?!
whats going on?! is there a different phone.apk i could try? but i flashed many FW and nothing solved the problem...
or does an app exist here i can test my external ear speaker?!
I vaguely remember a CM7 issue wherein you had to toggle mute to trigger the voice to work on calls. I'm sure your problem is different, since it's happening across multitple firmwares, but it's food for thought.
I would have also assumed your phone was thinking headphones were plugged in when they weren't. But if music plays through the rear speaker just fine, this must not be the case.
Whatever it is, good luck!
Does nobody know a method or a app with what i can test my "Earspeaker" ?
I have the same issue with my i9000M and have been unable to determine the cause. There must be a way to completely wipe the phone and restore a stock ROM in order to reset whatever setting controls handset speaker volume.
psss... noone is looking??? it is top secter Samsung's procedure, do not share:
1. factory wipe
2. flash stock firmware
3. factory wipe
I've got this exact issue.. proximity sensor is also broken and locks up the phone. I disabled it with a patch - but my earpiece is non-functional on stock.
Ideas? Hardware defect?
[Sorry to bump.]

Strange speaker issue

Hi all,
I have a strange issue with one mobo for i9000 and I thought that maybe someone will be able to help with that. I have not been able to find any solution on the forum or anywhere else. The problem is that the speaker generally works - when I change the ringtone or notifications, the sound gets through it, however it does not play any sound when playing multimedia type of sound (so in games, or when changing multimedia volume in settings). When I connect headphones, the sound works ok for multimedia. Does anyone have an idea on what is going on with it? I have never seen such an issue, is there any way o fix it?
Thanks,
XaFFaX
The_XaFFaX said:
Hi all,
I have a strange issue with one mobo for i9000 and I thought that maybe someone will be able to help with that. I have not been able to find any solution on the forum or anywhere else. The problem is that the speaker generally works - when I change the ringtone or notifications, the sound gets through it, however it does not play any sound when playing multimedia type of sound (so in games, or when changing multimedia volume in settings). When I connect headphones, the sound works ok for multimedia. Does anyone have an idea on what is going on with it? I have never seen such an issue, is there any way o fix it?
Thanks,
XaFFaX
Click to expand...
Click to collapse
Try to change your rom if problem still there then it must be fault in speakers then go to service centre.
It confused me, that you write the speaker sounds normal ...
Are you using BigMEM or something which breaks some kernel-libs for multimedia???
freakymod2120 said:
It confused me, that you write the speaker sounds normal ...
Are you using BigMEM or something which breaks some kernel-libs for multimedia???
Click to expand...
Click to collapse
Yeah, the sound gets through it when I select different ringtones, but not when playing multimedia. However when I connect headphones, all is ok.
Currently the phone was wiped clean and installed stock rom using Odin, so I assume if there even were modifications like those you mention, those should be all gone now.
Hmhh strange:
When you are using stock rom and the problem still exists it should be a hardware problem with the speaker maybe with some frequencies???
Because when you use your headphones erverything works okay, so the is produced by the kernel-drivers ...
The_XaFFaX said:
Yeah, the sound gets through it when I select different ringtones, but not when playing multimedia. However when I connect headphones, all is ok.
Currently the phone was wiped clean and installed stock rom using Odin, so I assume if there even were modifications like those you mention, those should be all gone now.
Click to expand...
Click to collapse
The_XaFFaX said:
Yeah, the sound gets through it when I select different ringtones, but not when playing multimedia. However when I connect headphones, all is ok.
Click to expand...
Click to collapse
check if you have any lint /dirt lodged in your headphone slot, try use a needle of tooth pick, when phone is powered off and battery removed.
Check this out! You , YES! you are an " Android ". Not your phone but U.​
It is strange, i never get this ideas ...:crying:
when i read your posting it is so obvious
xsenman said:
check if you have any lint /dirt lodged in your headphone slot, try use a needle of tooth pick, when phone is powered off and battery removed.
Check this out! You , YES! you are an " Android ". Not your phone but U.​
Click to expand...
Click to collapse
xsenman said:
check if you have any lint /dirt lodged in your headphone slot, try use a needle of tooth pick, when phone is powered off and battery removed.
I will, thanks. I did not realize this may be the issue, since all other sounds go through the speaker. But then if the sound for ringtones goes through speaker regardless of connected headphones, this may be the issue.
I will check and see if this will help, thanks!
Click to expand...
Click to collapse
Please let us know if it works now ...:good:
Thanks!
The_XaFFaX said:
xsenman said:
check if you have any lint /dirt lodged in your headphone slot, try use a needle of tooth pick, when phone is powered off and battery removed.
I will, thanks. I did not realize this may be the issue, since all other sounds go through the speaker. But then if the sound for ringtones goes through speaker regardless of connected headphones, this may be the issue.
I will check and see if this will help, thanks!
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Ok so I have managed to trace the problem. It turned out that international version of i9000 has a different sensor/headphone connector than the SC-02B I have. I have ripped off the sensor/headphone module from original leftovers of the screen and connected it to the board and launched the phone. All sound works fine then, no issues whatsoever. Youtube works, ringtones work, even the light sensor works (it did not when I tested it on the international board). So this is it guys. Probably the same problem is with wifi - there are different board connectors and the antenna is not connected, hence low signal.
Thanks for your replies and help, much appreciated!
XaFFaX

Call volume too low?

Hi, I just got my Nexus 6 that I purchased from eBay, everything is ok but the call volume, while it's pretty clear, I think it's too low compared to other phones, I'm not sure if I'm crazy or someone else has noticed that? I tried the speakers for music and they are loud, again, it might just me, but I wanted to double check if someone has noticed that, and if it's something normal for this phone, thanks!
saman0suke1 said:
Hi, I just got my Nexus 6 that I purchased from eBay, everything is ok but the call volume, while it's pretty clear, I think it's too low compared to other phones, I'm not sure if I'm crazy or someone else has noticed that? I tried the speakers for music and they are loud, again, it might just me, but I wanted to double check if someone has noticed that, and if it's something normal for this phone, thanks!
Click to expand...
Click to collapse
Try this.
1. Make sure the system volume is all the way up as well as the phone earpiece volume.
Get an app the controls all volumes and you'll see it there along with media , alarm etc.
This happened to me but once i raised system and phone it was fine.
Also note that you must practice placing ear in perfect earpiece speaker position lol.
Let me know if it worked that was my problem.
saman0suke1 said:
Hi, I just got my Nexus 6 that I purchased from eBay, everything is ok but the call volume, while it's pretty clear, I think it's too low compared to other phones, I'm not sure if I'm crazy or someone else has noticed that? I tried the speakers for music and they are loud, again, it might just me, but I wanted to double check if someone has noticed that, and if it's something normal for this phone, thanks!
Click to expand...
Click to collapse
Ditto. My phone volume way too low for in call - either with built-in earpiece or a wired headset.
Nothing I've found brings it up.
Speakers for media/notification is very good&loud, but speaker for in-call (using as a true speakerphone, not trying to use speakerphone mode as earpiece) and ringing is inadequate.
relaxable said:
Ditto. My phone volume way too low for in call - either with built-in earpiece or a wired headset.
Nothing I've found brings it up.
Speakers for media/notification is very good&loud, but speaker for in-call (using as a true speakerphone, not trying to use speakerphone mode as earpiece) and ringing is inadequate.
Click to expand...
Click to collapse
Believe that with update to 5.01 that is going to fix the problem, hope so, I believe that I read it somewhere. I really want to know what are all the fixes for the new version 5.01
BTW, I have Volume Ace download it from play store and see if you got all volume up
Good luck !

xperia sp no speaker-earphone-mic working

hey guys, I've got a problem with my xperia sp
I was on vanir 5.1.1 aosp when my phone went to bootloop so I restored back to stock 4.1 firmware(.254)
but I realized that my speaker does not work with musics but it does sound in some places like setting
and also my primary mic and earphone does not work during call
I typed *#*#7378423#*#* in dialer and tried testing speaker-earphone-mic and there was no response
So I installed the app soundabout like it was said in another topic and it shows that bluetooth(MONO) is being used for calls and I dont know what that means!
I tried changing setting through app and now i get sound from speaker and mic is working but whatever i do earphone wont work, and there is another issue, the phone wont recognize my handsfree anymore(stock one and other ones) is continues playing through speaker even when i plug in my handsfree!!
and after changing soundabout settings the sensor which turns sceen off when its close to ear is always on and when my finger is close to it, screen goes off!!!
help me out guys I dont know what happened!!!!
Kianush said:
hey guys, I've got a problem with my xperia sp
I was on vanir 5.1.1 aosp when my phone went to bootloop so I restored back to stock 4.1 firmware(.254)
but I realized that my speaker does not work with musics but it does sound in some places like setting
and also my primary mic and earphone does not work during call
I typed *#*#7378423#*#* in dialer and tried testing speaker-earphone-mic and there was no response
So I installed the app soundabout like it was said in another topic and it shows that bluetooth(MONO) is being used for calls and I dont know what that means!
I tried changing setting through app and now i get sound from speaker and mic is working but whatever i do earphone wont work, and there is another issue, the phone wont recognize my handsfree anymore(stock one and other ones) is continues playing through speaker even when i plug in my handsfree!!
and after changing soundabout settings the sensor which turns sceen off when its close to ear is always on and when my finger is close to it, screen goes off!!!
help me out guys I dont know what happened!!!!
Click to expand...
Click to collapse
Recently I had a similar issue. My SP always thought headphones are plugged in but actually they are not.
Reflash stock wiping everything.
About that SoundAbout app you better learn how to use it before you modify any setting. For now only check the notification bar whether headphone or loudspeker is used for media output.
Set phone call audio to "Let App Decide"
Phoenix854 said:
Recently I had a similar issue. My SP always thought headphones are plugged in but actually they are not.
Reflash stock wiping everything.
About that SoundAbout app you better learn how to use it before you modify any setting. For now only check the notification bar whether headphone or loudspeker is used for media output.
Set phone call audio to "Let App Decide"
Click to expand...
Click to collapse
thanks but I actually did wiped everything with flashtool and flashed the rom, and I did flashed several roms
----
edit: btw, I did that graphite thing but still no luck, how much is needed? what should actually be done?
is it a hardware thing or software?? cause it happened exactly after downgrading from 5.1 to 4.1 stock, I also relocked bootloader and restored TA but no luck.
Kianush said:
thanks but I actually did wiped everything with flashtool and flashed the rom, and I did flashed several roms
----
edit: btw, I did that graphite thing but still no luck, how much is needed? what should actually be done?
is it a hardware thing or software?? cause it happened exactly after downgrading from 5.1 to 4.1 stock, I also relocked bootloader and restored TA but no luck.
Click to expand...
Click to collapse
Dont try graphite method right now. First we need to confirm its a hardware or software issue.
Uninstall and install SoundAbout app and dont make any changes. Then u hit SoundAbout Service and choose ON-With Status and then tell me what u see in the notification panel(in use for media).
P.S. Use thanks button instead of saying thanks.
Phoenix854 said:
Dont try graphite method right now. First we need to confirm its a hardware or software issue.
Uninstall and install SoundAbout app and dont make any changes. Then u hit SoundAbout Service and choose ON-With Status and then tell me what u see in the notification panel(in use for media).
P.S. Use thanks button instead of saying thanks.
Click to expand...
Click to collapse
well I flashed the rom all over again and installed soundabout, there isnt a ON-with status option instead there is on-forground so i chose that the moment the notification came, touch sounds started to work(and walkman plays now through speaker) but handsfree is not detected - mic and earphone still not working
in status it says: Bluetooth (mono) in use for phone call
I actually did the graphite thing! but no luck and also i think it's not even a method cause graphite can even cause damage!
Kianush said:
well I flashed the rom all over again and installed soundabout, there isnt a ON-with status option instead there is on-forground so i chose that the moment the notification came, touch sounds started to work(and walkman plays now through speaker) but handsfree is not detected - mic and earphone still not working
in status it says: Bluetooth (mono) in use for phone call
I actually did the graphite thing! but no luck and also i think it's not even a method cause graphite can even cause damage!
Click to expand...
Click to collapse
Now i got your problem. It has nothing to do with graphite thing. Graphite method is used for stuck in headset mode.
Some sort of bluetooth device is connected with your phone and ur phone is transferring the mic and earphone control over to that bluetooth device. U turn off bluetooth and check if mic and earphone work. Also check soundabout status and if possible upload the screenshot of notification panel showing the current media status.
Phoenix854 said:
Now i got your problem. It has nothing to do with graphite thing. Graphite method is used for stuck in headset mode.
Some sort of bluetooth device is connected with your phone and ur phone is transferring the mic and earphone control over to that bluetooth device. U turn off bluetooth and check if mic and earphone work. Also check soundabout status and if possible upload the screenshot of notification panel showing the current media status.
Click to expand...
Click to collapse
uhh my friend...
the problem is that I dont have any bluetooth device at all and phone's bluetooth is also turned off....
if u need SS i would upload it but as i said it just says bluetooth(mono) in use for phone call and the second line says soundabout service is running!
where can i check if there is any bluetooth related device is connected?
Kianush said:
uhh my friend...
the problem is that I dont have any bluetooth device at all and phone's bluetooth is also turned off....
if u need SS i would upload it but as i said it just says bluetooth(mono) in use for phone call and the second line says soundabout service is running!
where can i check if there is any bluetooth related device is connected?
Click to expand...
Click to collapse
Okay...... Okay ur device reporting false positive that Bluetooth device is connected but in reality its not. For now the temporary solution would be set phone call audio to let app decide or earpiece. Note that this could be temporary solution tomorrow i would research in more detail and sort this out once and for all
Phoenix854 said:
Okay...... Okay ur device reporting false positive that Bluetooth device is connected but in reality its not. For now the temporary solution would be set phone call audio to let app decide or earpiece. Note that this could be temporary solution tomorrow i would research in more detail and sort this out once and for all
Click to expand...
Click to collapse
yeah, as I said when i just run soundabout service speaker sound starts to work but handsfree isnt detected
and when i put phone call to earpiece mic starts working but after this step the Proximity sensor becomes always active and it turns screen off the second my hand comes close to it, and earphone still wont function
anyway, you dont know how much you would make me happy if u figure this out!
Kianush said:
yeah, as I said when i just run soundabout service speaker sound starts to work but handsfree isnt detected
and when i put phone call to earpiece mic starts working but after this step the Proximity sensor becomes always active and it turns screen off the second my hand comes close to it, and earphone still wont function
anyway, you dont know how much you would make me happy if u figure this out!
Click to expand...
Click to collapse
U upload 2 screenshots just the same way i did in attachments. First one of notification panel and other of app itself. These are my default values u cross check values with ur phone.
Phoenix854 said:
U upload 2 screenshots just the same way i did in attachments. First one of notification panel and other of app itself. These are my default values u cross check values with ur phone.
Click to expand...
Click to collapse
here you go, by the way on these settings I just get speaker voice for media, mic-earphone-handsfree not working
is your app older or newer than mine?? some options look different!
I wanted to sell this phone but with this issue it's gonna be for a very cheap price cause it wont be fixed even with changing earphone!!!
Kianush said:
here you go, by the way on these settings I just get speaker voice for media, mic-earphone-handsfree not working
is your app older or newer than mine?? some options look different!
I wanted to sell this phone but with this issue it's gonna be for a very cheap price cause it wont be fixed even with changing earphone!!!
Click to expand...
Click to collapse
My version is the latest one v2.6.4. I recommend u to update it.
But anyways u try this.
1.Bluetooth behavious->tick (Mono) microphone override
Probably ur mic will start working.
2.Phone call audio->Earpiece
This would be an universal override to force audio from earpiece.
If possible update ur app coz the setting i said may or may not be available.
Phoenix854 said:
My version is the latest one v2.6.4. I recommend u to update it.
But anyways u try this.
1.Bluetooth behavious->tick (Mono) microphone override
Probably ur mic will start working.
2.Phone call audio->Earpiece
This would be an universal override to force audio from earpiece.
If possible update ur app coz the setting i said may or may not be available.
Click to expand...
Click to collapse
I updated to the latest version of soundabout and now I get a different notification
I attached screenshots
by the way I cant find a way to here anything from earphone to be sure that it's not damaged!
any advice on that?
if u got it working I should be able to get it working again
in second SS the font is black so it's a little bit hard to read but it's readable
Kianush said:
I updated to the latest version of soundabout and now I get a different notification
I attached screenshots
by the way I cant find a way to here anything from earphone to be sure that it's not damaged!
any advice on that?
if u got it working I should be able to get it working again
in second SS the font is black so it's a little bit hard to read but it's readable
Click to expand...
Click to collapse
Wired headset (with mic) in use for media. I got u now.
I strongly recommend u to do that graphite thing.
I suffered from same thing but I could not tell u before because u used older version of app that showed something about bluetooth.
Please refer to the other thread by me in Q&A section.
Phoenix854 said:
Wired headset (with mic) in use for media. I got u now.
I strongly recommend u to do that graphite thing.
I suffered from same thing but I could not tell u before because u used older version of app that showed something about bluetooth.
Please refer to the other thread by me in Q&A section.
Click to expand...
Click to collapse
hmm did that too, as I said before, and i did it again, no luck...
thanks anyway
Kianush said:
hmm did that too, as I said before, and i did it again, no luck...
thanks anyway
Click to expand...
Click to collapse
Actually it should work. Dont give up.
The actual description of the problem is phone is stuck in headset mode.
Here is how to get graphite from pencil.
https://www.youtube.com/watch?v=8AFYtNMweyM
Put the graphite powder in the headphone jack and plug in & out headphones 10x times. Try to put more graphite powder and repeat until your notification panel shows "Phone speaker in use for media" (check attachment).
At last if it didnt work then the only solution left will be replacing the headphone socket.
Good Luck!
Just a little Addition, replacing the headphone socket would be cheap and easy. I had opened my phone yesterday to clean it and this socket was easy to take out.
By the way: There can be a LOT of dust under the protector of your front speaker. Cleaning this has improved the sound while calling quite much!
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Sony Xperia SP - Cyanogenmod 12.1

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