[Q] Phone doesn't make calls - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hello all. So my rooted I337 stops making phone calls intermittently. It comes and goes completely by random. I can't hear the other person and they can't hear me. Nothing fixes it consistently. This happens across all the ROMs I've tried. Samsung tested all the hardware and said it was fine. T-Mobile confirmed it was not a network issue. I've flashed a number of different ROMs, SS 3.72 and 3.75, I've used the phone without putting ANY user apps on it at all, etc. I always get the same results eventually. I'm sort of at wit's end here. I've also attached a logcat (fist time doing one) if it's any help. I've also already got a new SIM card and changed the SIM tray (a pro did it) just in case to no avail. Thanks in advance.

I'm hoping someone knows the answer. My phone has similar issues. I have data and get normal text messages but my phone will not call out or can i receive calls. i did find a work around but not happy about it. if i dial *#*#4636*#*# then change radio from LTE/GSM Auto prl to GSM then calls data and text all work but at obviously slow speeds.
I337 OC3 rooted
---------- Post added at 04:32 PM ---------- Previous post was at 03:47 PM ----------
DmitriyVT said:
Hello all. So my rooted I337 stops making phone calls intermittently. It comes and goes completely by random. I can't hear the other person and they can't hear me. Nothing fixes it consistently. This happens across all the ROMs I've tried. Samsung tested all the hardware and said it was fine. T-Mobile confirmed it was not a network issue. I've flashed a number of different ROMs, SS 3.72 and 3.75, I've used the phone without putting ANY user apps on it at all, etc. I always get the same results eventually. I'm sort of at wit's end here. I've also attached a logcat (fist time doing one) if it's any help. I've also already got a new SIM card and changed the SIM tray (a pro did it) just in case to no avail. Thanks in advance.
Click to expand...
Click to collapse
Is your phone unlocked? If so is it unlocked by code from t-mobile or thru regionlockaway or similar method?

Changing the radio signal doesn't work for me, but I have noticed that the calls stop working when I turn off the dialing keypad tones. That being said, about a hundred other things can make the phone calls go silent, including, I suspect, installing Google Voice, Google Hangouts, or altering the ROM in literally any way.

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[Q] 4.2.2 update-can't make calls

Hi All,
I'm currently using Straight Talk with ATT SIM. Everything was working fine. I updated the software to 4.2.2 on Sunday. It didn't come OTA so I updated by going to Google Services Framework, clear data, then force stop. After a reboot, the OTA 4.2.2. showed up and I updated then.
Now, I am realizing that I cannot make or receive calls at all. Phone shows signal strength at 100% (4 bars) but when dialing, it does not go through, just silence, then a beep, then ends call.
I have tried rebooting phones, pulling SIM card out and replacing (twice) all with no luck.
HELP!!
Edit: I just realized I don't have internet connection either.
Larry216 said:
Hi All,
I'm currently using Straight Talk with ATT SIM. Everything was working fine. I updated the software to 4.2.2 on Sunday. It didn't come OTA so I updated by going to Google Services Framework, clear data, then force stop. After a reboot, the OTA 4.2.2. showed up and I updated then.
Now, I am realizing that I cannot make or receive calls at all. Phone shows signal strength at 100% (4 bars) but when dialing, it does not go through, just silence, then a beep, then ends call.
I have tried rebooting phones, pulling SIM card out and replacing (twice) all with no luck.
HELP!!
Edit: I just realized I don't have internet connection either.
Click to expand...
Click to collapse
Did you forget to pay the bill?
Sent from my Nexus 4 using xda app-developers app
What radio are you on?
Sent from my iPad 4
BigDig said:
Did you forget to pay the bill?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Haha. I wish it was that easy. No...account is current
mitchdickson said:
What radio are you on?
Sent from my iPad 4
Click to expand...
Click to collapse
Sorry for the newbie response but how can I find out what radio I am on?
Ah...found it.
Radio: 2.0.1700.48
I was on the same situation a couple days ago. after flashing 4.2.2, I can still make a call, people can still call me, but no sound from either me or them. The micros work fine (you can check by Voice Search).
At that time, after I ended messing everything up, I restocked the phone to 4.2.1. Everything worked fine after then. I dont know why this happens. You may wait for another solution. Just let you know that a restock can fix it, so dont worry. However I dont encounrage it becuase it wipes your phone completly.
opticaldh said:
I was on the same situation a couple days ago. after flashing 4.2.2, I can still make a call, people can still call me, but no sound from either me or them. The micros work fine (you can check by Voice Search).
At that time, after I ended messing everything up, I restocked the phone to 4.2.1. Everything worked fine after then. I dont know why this happens. You may wait for another solution. Just let you know that a restock can fix it, so dont worry. However I dont encounrage it becuase it wipes your phone completly.
Click to expand...
Click to collapse
Thanks for your reply. Yeah, I would like a solution that doesn't require complete wipe of phone.
So frustrating...been unable to use phone all day. Who knows how many calls I've missed.
Larry216 said:
Thanks for your reply. Yeah, I would like a solution that doesn't require complete wipe of phone.
So frustrating...been unable to use phone all day. Who knows how many calls I've missed.
Click to expand...
Click to collapse
In case you have no choice, back up your phone by Titanium backup. That saves everything you have at the moment
Same issue after 4.2.2 update
I'm having the exact same issue with my Nexus 4. Let me elaborate. I've had my Nexus 4 since the initial sale, today I got the OTA update sent via Tmobile. My phone seemed to work fine afterwards until I tried to answer a call. Upon attempting to answer or make a call (even with full service) the bars instantly drop to zero (hollow triangle) and an out-of-area tone & message display.
Restarted, pulled sim, sim worked fine in other phone, checked & rechecked APN/other settings, had Tmobile "reset" my device on network, finally wiped my device. I still can not make or receive phone calls. The radio seems to just disconnect when attempting to.
Spoke with Tmobile customer support (worthless), Tech Care (Very helpful & knowledgeable but no fix), Google Nexus support (Offered to replace device! However can't have any cosmetic damage). LG also contacted but zero assistance given.
I'm stumped, it seems to me that this issue might be related to the update disabling the LTE radio, because data & everything else works except for making calls. Like I said, Google offered to replace the device however I did (in good faith) advise them of a hairline crack on the back of the device, like many other N4 owners have had, not from a drop. Upon hearing of cosmetic damage they said that it's no longer their liability. I'm very disappointed but I understand.
Since the warranty is void from the crack, I'm going to root & play around.
Any questions or advice?
---------- Post added at 08:10 PM ---------- Previous post was at 07:44 PM ----------
Also, I'm on the same radio (Baseband?) as OP.
Radio: 2.0.1700.48
I'm curious to see if rooting will solve this issue. If yes, I will go this route.
Keep me posted. So frustrated.
Thanks johnmedic.

[Q] AIO Wireless on CM10.2

So I am running an interesting setup now where I am running a rooted and unlocked CM10.2 nightly with the GSM bit flipped and an AIO Wireless sim card. There are a few quirks that I have come across and trying to look for answers.
First:
I've had some difficulty getting my APN settings to save
Fixed using a build.prop change a few reboots.
Second:
I have an issue where my DTMF (touch tone) doesn't seem to be registering. Normally this wouldn't be a problem except for when I needed to call my insurance and they have an automated system. I don't know if this is a rom specific thing, an AIO Wireless specific thing or something else with the combination on my phone.
Third:
Since I've been running on GSM, the signal strength for my phone doesn't seem to be displaying properly. The phone works (and now I get internet), but the signal indicator doesn't seem to update. I use Lllama for some things and I see no new tower locations here either.
Fourth:
In Settings -> About phone -> Status -> My phone number is displaying as "Unknown." Not that big of a deal but I thought it was an interesting thing and wanted to see if it may be tied to any of the other issues I'm having.
If anyone has any insight on how to fix these things, that would be great appreciated and hopefully this can help any other people who may be having the same issues as me.
I'm using my Razr in GSM mode with CM10.2 on it. I'm in Italy, so maybe not everything I've done will work in other countries.
What did you changed to make the phone work in GSM mode? I just changed the following in the build.prop file (plus adding the APN):
"telephony.lteOnCdmaDevice=1" from 1 to 0
"telephony.rilV7NeedCDMALTEPhone=true" from true to false
"ro.telephony.gsm-routes-us-smsc=1" from 1 to 0
And everything works fine.
I've also tried to use the GSM fix found in this thread: http://forum.xda-developers.com/showthread.php?t=2446527, but is giving to me inconsistent results. Sometimes the phone works, sometimes drops the line, swithc from 3g to 2g, stops data download... So I flasher back a clean 10.2 ROM and added back only my previous changes.
By the way: in Settings -> About phone -> Status -> My phone number is displaying as "Unknown" too!
j27h said:
I'm using my Razr in GSM mode with CM10.2 on it. I'm in Italy, so maybe not everything I've done will work in other countries.
What did you changed to make the phone work in GSM mode? I just changed the following in the build.prop file (plus adding the APN):
"telephony.lteOnCdmaDevice=1" from 1 to 0
"telephony.rilV7NeedCDMALTEPhone=true" from true to false
"ro.telephony.gsm-routes-us-smsc=1" from 1 to 0
And everything works fine.
I've also tried to use the GSM fix found in this thread: http://forum.xda-developers.com/showthread.php?t=2446527, but is giving to me inconsistent results. Sometimes the phone works, sometimes drops the line, swithc from 3g to 2g, stops data download... So I flasher back a clean 10.2 ROM and added back only my previous changes.
By the way: in Settings -> About phone -> Status -> My phone number is displaying as "Unknown" too!
Click to expand...
Click to collapse
That totally worked! Now I have everything working properly. Thank you very much. Also, I figured out why in Status my phone number is unknown.
Open up the Phone app
Open the Settings menu
GSM call settings
Additional settings
Set your number in "My phone number"
Syphen5 said:
That totally worked! Now I have everything working properly. Thank you very much. Also, I figured out why in Status my phone number is unknown.
Open up the Phone app
Open the Settings menu
GSM call settings
Additional settings
Set your number in "My phone number"
Click to expand...
Click to collapse
Well... that's great: two solutions in two posts! Your phone is working and mine is displaing my number correctly... Hope these posts will be useful for someone else too!
j27h said:
I'm using my Razr in GSM mode with CM10.2 on it. I'm in Italy, so maybe not everything I've done will work in other countries.
What did you changed to make the phone work in GSM mode? I just changed the following in the build.prop file (plus adding the APN):
"telephony.lteOnCdmaDevice=1" from 1 to 0
"telephony.rilV7NeedCDMALTEPhone=true" from true to false
"ro.telephony.gsm-routes-us-smsc=1" from 1 to 0
And everything works fine.
I've also tried to use the GSM fix found in this thread: http://forum.xda-developers.com/showthread.php?t=2446527, but is giving to me inconsistent results. Sometimes the phone works, sometimes drops the line, swithc from 3g to 2g, stops data download... So I flasher back a clean 10.2 ROM and added back only my previous changes.
By the way: in Settings -> About phone -> Status -> My phone number is displaying as "Unknown" too!
Click to expand...
Click to collapse
Sorry for somewhat thread-hijacking, but you seem to know GSM stuff so I thought I'd ask, do you have any problems with making phone calls? I'm in the US on AT&T and when I make a call, if there is any noise coming in from the other person's microphone (either their voice or background noise),my voice starts breaking up on their end. I can hear them fine though.
I've tried several build.prop edits, such as changing persist.audio.handset.mic to 'analog' instead of 'digital', which makes my voice louder to others, but doesn't help with the audio breaking up. Do you know of any build.prop tweaks that might fix the issue? Thanks!
phantomsniper773 said:
Sorry for somewhat thread-hijacking, but you seem to know GSM stuff so I thought I'd ask, do you have any problems with making phone calls? I'm in the US on AT&T and when I make a call, if there is any noise coming in from the other person's microphone (either their voice or background noise),my voice starts breaking up on their end. I can hear them fine though.
I've tried several build.prop edits, such as changing persist.audio.handset.mic to 'analog' instead of 'digital', which makes my voice louder to others, but doesn't help with the audio breaking up. Do you know of any build.prop tweaks that might fix the issue? Thanks!
Click to expand...
Click to collapse
Hi Phantomsniper! Sorry for the late reply... to be honest I'm pretty new to the Android world (less than a year, coming from a Nokia 3310!). Maybe I've a similar issue: I can hear people fine (after cleaning the speaker), but on the other side they always say that my voice sounds too low (but not broken up for what I know). I'll try to investigate if my phone behaves as yours and if there's something we can do!
j27h said:
Hi Phantomsniper! Sorry for the late reply... to be honest I'm pretty new to the Android world (less than a year, coming from a Nokia 3310!). Maybe I've a similar issue: I can hear people fine (after cleaning the speaker), but on the other side they always say that my voice sounds too low (but not broken up for what I know). I'll try to investigate if my phone behaves as yours and if there's something we can do!
Click to expand...
Click to collapse
Yeah, that's pretty much it. Few things I noticed since my last post:
1) If I use headphones with a mic to talk, everything sounds perfect on both ends
2) When testing the bug, if I mute the other person's phone (so I can't hear what they say) then everything I say into the Razr M is clear on their phone
3) Speakerphone works fine
4) Sound problems occur with a T-Mobile SIM and perhaps a Verizon SIM too (I couldn't really test much with the VZW SIM because it was my friend's and she was in a rush so I just tried it for a minute)
I think basically, if any sound is coming through from the earpiece (the one that is right where the "MOTOROLA" logo is), then the microphone that is under the Verizon logo turns off or gets quiet or something. That would explain why speakerphone and using a headphone's mic works fine.
I don't want to get too off-topic here though. Perhaps we should talk over PMs if we find anything new.

Need Opinions And Thoughts Please

Ok ive been pulling my hair out for a while with this problem so im really hoping you guys can give me some answers or suggestions to help me fix it My Girlfriend has the Galaxy S5 SM-G900V. Baseband version G900VVRU2BOG5 So rooting or custom ROMS is out of the question so that leaves me with trying to diagnose and eliminate this problem without a easy way out.
Ok the problem is once she updated the phone to lollipop she had all the common problems that come with it over time i have slowly eliminated them with factory resets and cache cleaning and such although i have one problem that not even verizon can figure out. The phone itself with occassionally and randomly just refuse to make or receive calls its a very odd problem because the phone will send and receive sms and mms just fine when this happens but when we try to dial out it just sits at dialing and never connects, when calls are dialed into the phone it will ring 5 times or so then go to voice mail or just go straight to voicemail altogether without ever ringing the s5 shows no sign of anyone ever trying to call at all no ringing no records nothing. Once in a blue moon it will ring 4 times on the dial in and then the s5 will start ringing around the 5th ring which is extremely long time IMO. This happens very randomly and in all different locations i have disabled call blocking and auto reject i have tried safe mode to only experience the same problems, i have factory reset several times. Verizon opened a ticket with there tier 2 techs and network development team to check out the issue they tell us everything is completely fine and theres nothing they can see wrong. But they do not deny the problem is there they just cant explain it. Now get this, This is the second phone that has done this to her Ther first one had the same problem and was warranty claimed this is the second phone and same exact issues. Im not sure what else i can do i am a very tech savy person and this one has got me stumped the only thing i can see thats odd for me is the phone has 3 Phone services running in the background But I believe this may have something to do with the Touchwiz Easy Or Regular Home UI althought im not sure why it would use seperate apps. Anyway any input would be helpful Thanks

No calling, only SMS/data/wifi working on any ROM and/or stock

I've been using AICP for a while (Marshmallow), but haven't done an update in a while. By a while, I mean that I don't think I've flashed anything in weeks. Suddenly, I cannot make or receive calls today. Yesterday I made a number of calls just fine. I checked all the standard possible causes, dialer apps, default apps for phone, etc. After no success, I decided to flash back to stock.
Now I'm on stock 6.0. Same problem, cannot make calls. All I get is a screen which says "dialing" until it makes a tone sound and hangs up, never rings anyone. My phone never rings or responds when other people call. I do have full bars and service, and my APN is set up properly with AT&T in the USA. SMS and Data work fine, and so does WiFi. No other problems at all with the phone. I've had it for about a year and a half with no real hardware issues other than a loose charging port. No drops, no cracked screen or anything.
I'm wondering if anybody has a clue about what the problem with my phone is. I'm willing to generate and provide logs if there's a way to do that which could show the issue.
EDIT1: Derp, just tried the SIM in my girlfriend's phone. Seems to by my sim card. I'll go to AT&T tomorrow and report back here if the issue is fixed.

Galaxy S8 Call interruptions

I bought a new S8 in Greece, and in the first two 24 hours I had it, my interlocutors on the phone were complaining that during our call sometimes they could not hear me.
I went back to the store and the employee told me that he was aware of the problem (interruptions during calls) and that this even happened in his own S8. He said there was an issue because the device was from another EU country (mine was from Italy) and when it makes the OTA update something is happening. So they sent it to Samsung and after 1 week I got it back. They have made a ROM update.
I'm starting to setup it again, and in the beginning I am receiving a message that a SIM change was detected and I had the option of either continuing or resetting in the factory settings. I chose the 2nd (probably this was a mistake - I'm not sure if I actually "canceled" the update made by Samsung).
The point is that the problem has remained. I went back to the shop and they suggested to fully refund me, which I accepted.
I go to another shop and buy a new S8 device. I put SIM while being on the store, again the same problem! We test the employee's SIM, and it seems that in the call I have made, it worked ok.
So I believed it was my SIM that had a problem. I replace it, the problem continues. I am choosing a fixed type of network (eg 2G) and not automatic switching (3G / 4G etc) and the problem is somehow better, although again the interlocutors complain to me that they lose me while we speak.
I'm calling to an Authorized Samsung Service. They tell me they know the issue and that there has been a formal instruction from Samsung which says that a specific version of ROM needs to be installed to solve it.
Has this problem happened to anyone else?
kergaz said:
We test the employee's SIM, and it seems that in the call I have made, it worked ok.
Click to expand...
Click to collapse
Same carrier or different?
peachpuff said:
Same carrier or different?
Click to expand...
Click to collapse
Different carrier.
Well in Cyprus we had the same issue with call interruption but all seemed fixed on July`s update. Call was interrupted no voice or sound could get through the phone and a restart was nessescary to solve the issue. Is the phone updated to the latest firmware?
---------- Post added at 09:01 AM ---------- Previous post was at 08:59 AM ----------
Everytime I reproduced the problem wifi signal was the issue. So maybe that wifi hd call was or is the issue. Could be wrong though about your issue
tasked28m said:
Well in Cyprus we had the same issue with call interruption but all seemed fixed on July`s update. Call was interrupted no voice or sound could get through the phone and a restart was nessescary to solve the issue. Is the phone updated to the latest firmware?
---------- Post added at 09:01 AM ---------- Previous post was at 08:59 AM ----------
Everytime I reproduced the problem wifi signal was the issue. So maybe that wifi hd call was or is the issue. Could be wrong though about your issue
Click to expand...
Click to collapse
Hi, thanks for the reply.
Yes the phone is updated to the latest firmware. It seems to me that it's not exactly the same problem since although during voice calls the others tell me that they hear me with some interruptions, after the call the device operates normally (all sounds) and there is no need to restart...
I don't also think it is related somehow with the WiFi and in my device there was no option at all to enable wifi HD call...

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