No in-call audio for cellular calls... BT calls work fine though - Galaxy S 4 Q&A, Help & Troubleshooting

Hi all,
I've owned my S4 for a year an a half and out of nowhere started experiencing a huge issue today.
I have no audio whatsoever - earpiece or mic - when making a cellular call. I dial, and the call goes through (the other party receives the cal), but I have no audio. Even when plugging in a headset, still no audio. Incoming calls exhibit the same problem.
When connected to bluetooth, I do have audio + mic through the bluetooth device. As soon as I disable bluetooth, the issue returns.
All other apps/audio work fine - VOIP, texting, data... I can make Hangouts calls and the earpiece and microphone work.
I've rebooted the phone; that worked for a few minutes then the problem came back. I also did a battery + microSD + sim card pull, that fixed the issue for probably 30 minutes, then it returned.
I also flashed a new rom just to see if it would fix it - it didn't. Removed microSD, no fix.
I'm running Stock GPE 5.1 and have been for many months with no issues whatsoever, then this creeps up out of nowhere today. I've done some searches and other people have had the issue but I can't seem to find a definitive fix. Some report faulty SIM reader, but I have no problems otherwise with my SIM, and BT calls work so that would seem to rule that out?
Has anyone had this issue and/or fixed it?
Best,
-Dirk

OK so it appears to be hardware!
While making a test call, I took the back cover off and moved my finger around the upper area of the phone - near the SIM card slot - and applied various amounts of pressure. The in-call audio returned! However if I jostle the phone a bit, I lose audio. So some sort of connection in that area is loose or fraying or something.
Has anyone else had a similar issue? Perhaps tightening things would fix?

Related

Noise in the speaker - ideas?

Since a couple of days I started to hear some noises in the speaker when calling or receiving a call. It's something like hearing the other person outdoor with the wind blowing, and its getting worse when I am moving.
Any idead what to do before sending Blackstone to the provider? I tried to change rates/bands from 3G/GSM because I played with it before and also reflashed the rom with 1.7 DUtty's - no effect. I think I am gonna reflash the radio - not sure if that would help.
PS I've also checked the speaker in search of hair, dust, debris - it's clear but doesnt sound like. Funny thing - the voice in the headset are perfect also the music is alright so I am getting the feeling that it could be software issue.
Please kindly advise
another strange issue - I did a hard reset and the noise is gone (using the 3g) however when lying down on bed talking through it in the horizontal position I can hear that noise again (although not so loud and often as before which is fine)
could it be the g-sensor issue?
Had The exact same problem with my first 2 touch hd`s. I got both replaced on warranty. The first one worked at first but got gradually worse. The second one came like that. I am now on my third and no problems so far.
Tried everything to fix the first 2. New radios, hard reset. Nothing seems to fix it.
why there's no interference when on loudspeaker or playing music? seems that the speaker is fine.
checked the sim in other phone - fine. WTF? I'll try to reflash the radio tomorrow if not sending it back to be replaced.
How to obtain orange fault code which is needed by my phone provider? call the cs?

[Q] Mic cutting out repeatedly

Searched through most everywhere and found very few references to mic problems, but no solutions. My mic keeps dropping out during calls (not always, but often). If I switch to speakerphone the other end can hear me fine. It didn't do this for the first couple of weeks (month?), but then it happened 2-3 times in a row so I don't think it's a Sprint or tower issue. Now it's fairly regular.
I'm still stock, not rooted, so I may try doing a factory reset first, but this sure sounds like a hardware problem. But what confuses me is the speakerphone mic working. I thought the S4 only had one mic. If so, then it could be a software issue. Can anyone confirm it uses only one mic?
Thanks,
Greg

[Q] Galaxy S4 - No Audio during calls, other person receives white noise.

Hello,
I have a galaxy S4 (canadian version) and have only been having troubles with it within the last couple days. I do develop so I'm not new when it comes to phones but this issue has me at a lose.
Problem:
When I make or receive a phone call there is absolutely no audio on my end, I cannot hear the dial tones or the other person's voice. The only thing I can here is the call connect and disconnect beeps. The person on the other end hears a very loud buzzing/white noise. This noise becomes intermittent slightly when I speak into the problematic device.
It is only when making/receiving a phone call that the audio does not work. All speakers are functioning in all other apps (music player/skype etc.) the mic is also working without a problem when used for other apps.
When the problem first started I was running 4.2.2 firmware. I was making a phone call when the audio cut out unexpectedly having assumed it was a dropped call I made an other attempt but there was no sound at all. I restarted the device and that very briefly fixed the issue. However every time since restarting the phone has done nothing.
WiFi is working fine as well.
Attempts at Solutions:
Restarting the device (with headphone connected and without)
Factory resetting the device (with headphone connected and without)
Flashing updated (and older) stock firmware on to the device
Flashing custom ROMs on to the device
Dialer apps
SoundAbout app
Making calls with headphone connected / speaker phone
All settings have been checked to ensure in call volume has not been disabled
About Device:Currently running: Gummy version M1.02-25-14-NIGHTLY (Please note that when the phone first started messing up I was running stock 4.2.2 and there was no audio during a call between either phone. The Gummy ROM has made some improvement)
Current android version: 4.4.2
Phone Model #: SGH-I337M (Canadian S4)
Baseband version: I337MVLUAMDJ
Any help is appreciated!
Thank-you
I'm having a similar issue with my ATT SGS4. It started happening randomly...the person on the other end hears beeps and I hear nothing. Speaker/headset with mic don't work either. Only thing that works is Bluetooth oddly enough...but as soon as I switch to speaker, it goes back to not working.
A reboot fixes it temporarily, but then it comes back randomly..either right away or later on in the day.
If Bluetooth works fine for voice calls then I would guess that it's a physical hardware issue. Perhaps the ADC / DAC for onboard mic and headset is malfunctioning?
For Bluetooth I would also guess that A to D conversion happens within the Bluetooth chip which seems to be working fine.
It would be nice to see a schematic.
Edit: I found a block diagram of the circuit. and this link https://www.ifixit.com/Teardown/Samsung+Galaxy+S4+Teardown/13947
So it looks like the audio codec goes straight into the modem but the Bluetooth goes through the Snapdragon CPU before going to the modem. Based on this my original assumption seems to be correct and your mic codec is malfunctioning or there is a physical connection problem.
Hope this helps in any way.
Does this explain why a restart fixes the issue though? If it were solely a connection/hardware issue, a restart wouldn't do crap (unless it re-initializes the circuit and then something causes it to go derp again).
saj222 said:
If Bluetooth works fine for voice calls then I would guess that it's a physical hardware issue. Perhaps the ADC / DAC for onboard mic and headset is malfunctioning?
For Bluetooth I would also guess that A to D conversion happens within the Bluetooth chip which seems to be working fine.
It would be nice to see a schematic.
Edit: I found a block diagram of the circuit. and this link https://www.ifixit.com/Teardown/Samsung+Galaxy+S4+Teardown/13947
So it looks like the audio codec goes straight into the modem but the Bluetooth goes through the Snapdragon CPU before going to the modem. Based on this my original assumption seems to be correct and your mic codec is malfunctioning or there is a physical connection problem.
Hope this helps in any way.
Click to expand...
Click to collapse
Same thing happened to me, the incall audio chip as gone bad. I had to buy a S4 with a cracked screen off craigslist and swap mother boards and the phone works perfectly now.
SOLUTION: Samsung Galaxy S4 I337 no audio sound during phone call.
SOLUTION: Samsung Galaxy S4 I337 no audio sound during phone call.
For me it was a bad SIM Card Reader or Module IF. But it could be a bad SIM card so try a new SIM before doing this repair or at least take it out and in.
My Service Repair Statement said it replaced two things:
Part Number Description
GH59-13279A Unit-SIM SD SOCKET; SGH-I377, 10-0013-0278
GH59-13111A MODULE-IF SUB FPCB(SGH-I337);SGH-I337,10
Called 800-726-7864 told them what the symptoms were and that the support line said it was the SIM Card Reader and they gave me a quote of $70.36 and seemed confident that the phone would be fixed. Sent to Samsung Repair Facility in Texas, total cost $70.36, and was without it for 9 days. It’s been working for 2 weeks now with no problems.
First I took it to an AT&T Service Center and all they really did was try a new SIM Card, next called Samsung Service 888-987-4357 and went thru a series of tests and they said it was a bad SIM card reader and gave me the repair center number.
Symptoms:
No audio / sound during a phone call on either side (caller or receiver)
Call connects everything is working, just no sound.
Sound for all other functions and apps works (music, voice recording, video audio).
You can tell it is going to happen when you make a call and you don’t hear any ringing just a click sound then nothing. If you hear ringing then the call will work.
Rebooting usual works for a call or two. Messing with some settings may get it to work for a period of time. But for me none of any of the other suggested fixes worked except rebooting and turning airplane mode on and off but it only fixed it for awhile.
I have used the phone for 1.5 years and never had a single hardware problem, didn’t have it heavily loaded (RAM or Memory). It just started one day out of the blue and drove me crazy.
jade77angel said:
Hello,
I have a galaxy S4 (canadian version) and have only been having troubles with it within the last couple days. I do develop so I'm not new when it comes to phones but this issue has me at a lose.
Problem:
When I make or receive a phone call there is absolutely no audio on my end, I cannot hear the dial tones or the other person's voice. The only thing I can here is the call connect and disconnect beeps. The person on the other end hears a very loud buzzing/white noise. This noise becomes intermittent slightly when I speak into the problematic device.
It is only when making/receiving a phone call that the audio does not work. All speakers are functioning in all other apps (music player/skype etc.) the mic is also working without a problem when used for other apps.
When the problem first started I was running 4.2.2 firmware. I was making a phone call when the audio cut out unexpectedly having assumed it was a dropped call I made an other attempt but there was no sound at all. I restarted the device and that very briefly fixed the issue. However every time since restarting the phone has done nothing.
WiFi is working fine as well.
Attempts at Solutions:
Restarting the device (with headphone connected and without)
Factory resetting the device (with headphone connected and without)
Flashing updated (and older) stock firmware on to the device
Flashing custom ROMs on to the device
Dialer apps
SoundAbout app
Making calls with headphone connected / speaker phone
All settings have been checked to ensure in call volume has not been disabled
About Device:Currently running: Gummy version M1.02-25-14-NIGHTLY (Please note that when the phone first started messing up I was running stock 4.2.2 and there was no audio during a call between either phone. The Gummy ROM has made some improvement)
Current android version: 4.4.2
Phone Model #: SGH-I337M (Canadian S4)
Baseband version: I337MVLUAMDJ
Any help is appreciated!
Thank-you
Click to expand...
Click to collapse
i have the same issue no audio in calls and i rehot the audio codec ic wcd9310 and that worked completely

[Q] LG G3 + gwatch: callers can't hear me speak over bluetooth when connected

Hi,
I realize this will sound like a strange issue, but I can reproduce it so it certainly exists.
I have an LG G3 running Android 4.4.2 on Verizon. I just bought it back in Jan '15, and the phone has been working great with no issues. I use my car's built in bluetooth connectivity to place and receive calls while driving and have had no issues doing so.
A few days ago (week of 3/9/15), I acquired a used LG G watch from a friend at work. It's in good shape; he only had it a few months, and it's working well. It connects to my phone, and I can use it to txt, place calls, etc. It's running software version 5.0.2.
I am experiencing an issue for which I cannot find the root cause. My issue is that, when I'm in my car, and both the car and the watch are connected to the phone via blue tooth, and I place or receive a call, folks on the other end cannot hear me speak. I tried it with my wife's cell phone, and can reproduce it every call. My voice is barely audible, yet bluetooth is connected to the car and I can hear the other person's voice just fine over my car speakers. As this is happening, if I pick up my phone and switch the call to the handset from bluetooth, the problem goes away and I can take the call on the handset. But as soon as I put it back to bluetooth, the problem returns. Once this happens, if I hang up and try to call the person back using either bluetooth OR the handset, the voice problem returns and I cannot be heard speaking. I tried putting my mouth up to the watch and the phone thinking maybe it was trying to use another microphone, but I still sounded muffled and far away while I was testing this with my wife's phone.
I have checked all my settings in Android Wear, my phone settings for volume as well as call settings...I cannot find anything obvious. I've googled the issue, but there is little to no information regarding this problem.
Can anyone suggest something to help fix this? I really like the G watch, and I would like to get it to work so I can enjoy it. You would think that the G3 and G watch would play nice since they are both LG!
Thanks for any help,
Nick
Having the same issue....sort of...
First, allow me to apologize for any improper formatting or if I've tendered my reply in the wrong way.
I've literally never replied on a message board in my life. Ugh, I know. How, right? Moving on...
I have an issue very similar to the one you're having, only in place of the car, put a Plantronics WalMart headset and change the G3 for it's predecessor. I notice that people call me when my watch is connected to my phone. When I answer, they claim to not be able to hear or understand what I am saying. The problem persists even if I disconnect my headset and use the G2 in either handset or speakerphone mode. The only fix I've found is to restart the phone and return the call. Even then, if the watch is still connected, only the first call can be completed with no "interference".
I've attempted to update the software and firmware to my G2, with no success. I have no idea why this issue occurs.
Also, is probably noteworthy that regardless of whatever Bluetooth device I am connected, very very often during a call, my caller's voice will shift into "speakerphone" mode without being instructed to do so. I have to open the call screen, turn off the BT, then select it again to turn it back on. The call returns to the headset, but doesn't stay there in most cases. Sometimes I have to do this 5 - 7 times a call. Other times, it remains connected as it's supposed to. Again, I can find no reason why this happens, but it's been an issue for MONTHS with my G2. And it doesn't matter what headset I am using, it just "drops" the sound to my speaker phone, but still says that it remains connected to the headset.
It's a Sprint LG G2, if that matters at all.
PrivateBytes said:
Hi,
I realize this will sound like a strange issue, but I can reproduce it so it certainly exists.
I have an LG G3 running Android 4.4.2 on Verizon. I just bought it back in Jan '15, and the phone has been working great with no issues. I use my car's built in bluetooth connectivity to place and receive calls while driving and have had no issues doing so.
A few days ago (week of 3/9/15), I acquired a used LG G watch from a friend at work. It's in good shape; he only had it a few months, and it's working well. It connects to my phone, and I can use it to txt, place calls, etc. It's running software version 5.0.2.
I am experiencing an issue for which I cannot find the root cause. My issue is that, when I'm in my car, and both the car and the watch are connected to the phone via blue tooth, and I place or receive a call, folks on the other end cannot hear me speak. I tried it with my wife's cell phone, and can reproduce it every call. My voice is barely audible, yet bluetooth is connected to the car and I can hear the other person's voice just fine over my car speakers. As this is happening, if I pick up my phone and switch the call to the handset from bluetooth, the problem goes away and I can take the call on the handset. But as soon as I put it back to bluetooth, the problem returns. Once this happens, if I hang up and try to call the person back using either bluetooth OR the handset, the voice problem returns and I cannot be heard speaking. I tried putting my mouth up to the watch and the phone thinking maybe it was trying to use another microphone, but I still sounded muffled and far away while I was testing this with my wife's phone.
I have checked all my settings in Android Wear, my phone settings for volume as well as call settings...I cannot find anything obvious. I've googled the issue, but there is little to no information regarding this problem.
Can anyone suggest something to help fix this? I really like the G watch, and I would like to get it to work so I can enjoy it. You would think that the G3 and G watch would play nice since they are both LG!
Thanks for any help,
Nick
Click to expand...
Click to collapse
Have you tried going into android settings for voice input and allowing recording using Bluetooth mic?

Speakerphone turning off at random while on call.

Hello,
I have not seen a thread on this nor has Google searches helped but I have an issue I wanted to post to see if anyone else was having the issue.
I use my phone for work and often have it on speaker phone, out of no where the call goes quite and the person on the other end of the call can not hear me anymore. Upon looking at the phone the speaker phone seems to get disabled and the call goes back to the handset. This happens often when using the speakerphone but certain calls are worse then others.
In one call I had the speaker phone get disabled about 10 times which was close to every 30 seconds or so. This is very very annoying, I have also rebooted the phone. At this time I am not modded and have less then ten apps installed and I am pretty sure none of the apps I installed are causing the issue.
I will note that I do have the phone connected to bluetooth a lot and when the issue happened I tried to disable the bluetooth while on the call but the issue persisted.
Is anyone else experiencing this issue?
Speaker phone and Bluetooth turning off at random
I am having the exact same problem. But for me this happens with Bluetooth and speakerphone. This is getting really frustrating for me and potentially dangerous when I try to switch back to Bluetooth while driving.
Have you figured out a solution for this yet ?

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