Develop Bugs

ICS Leak - Missed Calls and Data Drops on LTE

I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?

New rom? Just in case something did happen with the rom somehow.
Sent from my LG-P930

I'm also having the same problem on official Bell ICS...

accent1016 said:
I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?
Click to expand...
Click to collapse
Why not use the official release?

accent1016 said:
I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?
Click to expand...
Click to collapse
Voice data is not sent over the LTE network but instead is sent over EDGE, HSUPA or HSDPA (gsm) networks. This is because LTE was designed to handle data only. Currently a few mobile operators are begging to launch voice over LTE capabilities (VoLTE). However ATT does not support VoLTE capabilities so whenever you place or receive a call your handset will switch to the gsm network to handle voice.After the call has ended your handset usually takes a few seconds to automatically switch back to LTE if available. During the time your phone is switching back networks your data will be inaccessible. If your phone does not switch back or your data never returns then you can toggle on/off airplane mode to reset it as you have mentioned doing. This should not be happening very often, unlike what you describe. What I would suggest is flashing HoNo's CWM official V20c ICS from att. This will update your phones baseband and firmware for your radios and I've also heard is more stable and has improved battery life. Hope I could help.
Sent from my Nexus 7 using xda app-developers app

accent1016 said:
I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?
Click to expand...
Click to collapse
I had the same problems with the leak at home where I have a weak signal. Never had any problems with CM9 or GB. When I switched to the official rom all those problems went away. So I think it was just a baseband issue with the leak.
Sent from my LG-P930 using xda app-developers app

We ( my wife and I) got the same issue... With Bell.
So we sent both phone ( GB by the way non root ) to bell to get them repair ...
Sent back the phone... 1 h later ... got the same issue .. so they ( futuretel in Markham Ont Canada) dont find the issue, they just reflash the phone.
sent it and ... weeks later got it back ... lost it again ... but they change hardware and also reflash.
Now it's my turn ...
I'm still waiting for my phone because when i got it back, got issue ( probably firmware ) because I lost the speaker and speakerphone ... so if someone call me i was not able to ear them...
Sent back the phone again for repair and now i'm waiting.
Update my wife phone 2 day's ago with ICS from LG( bell ) and I dont think she got the issue.
If it's happening again, LG will have to step in because it's 2 repair for the same issue.
Since we are not alone in this situation we will be able to remove the hypothesis
of interference in our house!
And again ... when I was talking with someone from Bell support, I told them I would like to try custom Rom if the issue is still there...
The person agree with me... yes weard from someone from bell...
Other than that ... it would be good for people to "catlog" the drop signal / no voice service...
Some one have a good tool that can track that specific issue ?
Thanks!

Incoming callson WiFi calling goes straight to Voicemail

I love the phone and having the hardest time resisting turning the phone back in. I'm on my 2nd S3 and my third Sim card. Everything appears to be going well but I noticed that when my phone is in WiFi calling mode, incoming calls go straight to voice mail. I don't get an alert or anything. If they leave a voicemail, I get that. I searched other phones that have had this issue not just the S3. I am running stock OS but I am rooted.
Can anyone else verify that there incoming calls are working on Wifi Calling ? Any ideas on what I could try ? outgoing calls work fine.
EDIT: Sometimes calls go through, sometimes it doesn't. When it does go through, I can't swipe the green button to answer. It goes through the swipe motion but nothing happens. When I am off of WiFi calling, I can receive calls correctly and I can properly swipe to answer them

soljaofjesus said:
I love the phone and having the hardest time resisting turning the phone back in. I'm on my 2nd S3 and my third Sim card. Everything appears to be going well but I noticed that when my phone is in WiFi calling mode, incoming calls go straight to voice mail. I don't get an alert or anything. If they leave a voicemail, I get that. I searched other phones that have had this issue not just the S3. I am running stock OS but I am rooted.
Can anyone else verify that there incoming calls are working on Wifi Calling ? Any ideas on what I could try ? outgoing calls work fine.
EDIT: Sometimes calls go through, sometimes it doesn't. When it does go through, I can't swipe the green button to answer. It goes through the swipe motion but nothing happens. When I am off of WiFi calling, I can receive calls correctly and I can properly swipe to answer them
Click to expand...
Click to collapse
Ah-ha, you just solved a mystery for me! I like to have my phone automatically connect to any wifi in my usual hangouts to save data. I kept wondering why I was missing calls without hearing my ringtone. I have a theory on what is happening. Back on my old Vibrant, wifi-calling could not work on slower networks. I could get it to initialize but never could it actually make a call. I noticed this when up in the mountains at a lodge that had very slow internet. Maybe it's the same issue? Hopefully others will chime in.
Not sure if this a slow network issue or and ICS issue. My S3 does this also and is frustrating since I auto connect to wifi at home and work. Keep missing damn calls. My S2 started doing the same thing when I updated from GB to ICS. Maybe its a Samsung and ICS thing now that I think about it because the wife and kids all run ICS on HTC Amaze without issue.
Click to expand...
Click to collapse
Disappointing. Are you on T-mobile? (I expect yes as this, to my understanding, is the only US network licensed to use wifi calling?)
I am thinking of buying an S3 but I have to have wifi calling working on UK operator orange.
Click to expand...
Click to collapse
I think most of these threads are locked because XDA is trying to separate them all. Anyways, this is the only way I could respond. Since my first post, I have had more positive experiences with wifi-calling. I think it may be a little of both, slow connection and this newer implementation. On a slow connection it definitely wont work correctly which is what I would expect. What I mean is you can't successfully answer or make a call as the phone app will just hang. Going straight to Voicemail is another mystery altogether. I have 4g internet at home so there is no reason I can think of for that to happen. But like I said since my first post I have successfully made and answered several calls from home using wifi-calling and even a few from a location that had decent internet. Call quality was decent for what it is.
Guys, take a look at this thread. It concerns wifi signal dropping and re-enabling. That would certainly explain why some of the calls made to me when I was at home on wifi went to Voicemail even though I have 4g. I did notice some of this last week.
http://forum.xda-developers.com/showthread.php?t=1790187

Not sure if this a slow network issue or and ICS issue. My S3 does this also and is frustrating since I auto connect to wifi at home and work. Keep missing damn calls. My S2 started doing the same thing when I updated from GB to ICS. Maybe its a Samsung and ICS thing now that I think about it because the wife and kids all run ICS on HTC Amaze without issue.

Wifi Calling
sflagg73 said:
Not sure if this a slow network issue or and ICS issue. My S3 does this also and is frustrating since I auto connect to wifi at home and work. Keep missing damn calls. My S2 started doing the same thing when I updated from GB to ICS. Maybe its a Samsung and ICS thing now that I think about it because the wife and kids all run ICS on HTC Amaze without issue.
Click to expand...
Click to collapse
Disappointing. Are you on T-mobile? (I expect yes as this, to my understanding, is the only US network licensed to use wifi calling?)
I am thinking of buying an S3 but I have to have wifi calling working on UK operator orange.

This happens on sprint phones as well...

I see this thread is open again. My experiences with wifi-calling have bore out what I thought: A weak signal will cause problems. I only wish that every call went to voicemail. What happens often with me is that wifi-calling will partially work, as in I can answer a call but the person can't hear me at all and I may catch one or two words from them. If they terminate the call, the phone app is fine, but if I terminate the call, the phone app hangs and freezes everything! Today it was so bad I had to pull the battery and reboot. Maybe wifi calls going to voicemail is an imperfect function that Samsung or rather T-Mobile built into the app. It kinda makes sense as this app could never complete a wifi call if you were connected to slow internet when it was a separate app. In any case I would rather have my wifi calls go straight to voicemail (and get a pop-up notification) than have the app try to work but wind up hanging my phone. What do you guys think?

I don't know about slow networks. I've already exchanged one T-Mobile S III because of Wi-Fi calling problems. My replacement works much better on my work network than it does on my home network and it is much, much slower than my home network is.

dcugooner said:
I don't know about slow networks. I've already exchanged one T-Mobile S III because of Wi-Fi calling problems. My replacement works much better on my work network than it does on my home network and it is much, much slower than my home network is.
Click to expand...
Click to collapse
This isn't particularly good news for me. If it isn't software problem that manifests when coupled with a slow network then a future update won't fix it. That's what I was hoping the problem would turn out to be. If its hardware, then the time I have to do something about it is limited as I dropped my first phone and the replacement has a limited warranty, I think. Plus, I've paid to have invisi-shield placed on the front and back and would have to eat that cost if I get another replacement.

Epic Fail
I have this issue and am at my wits end to resolve it. Wifi calling is a major feature that worked fine(except echo) with my Vibrant. However, nothing I have tried will fix my ability to answer calls on WiFi. I have the SIM from the GS3 box. My E911 address exists since my bb8900. WiFi Power Save is off. All routers I use, Linksys E4200 and Linksys WNR1000, Linksys 614. Wireless N and G. T-mo CS could not help. I understand that the WiFi calling changed from UMA to IMS. No separate app. GS2 users with same issue. Anyone with a clue? Please help.

IrieBro said:
I have this issue and am at my wits end to resolve it. Wifi calling is a major feature that worked fine(except echo) with my Vibrant. However, nothing I have tried will fix my ability to answer calls on WiFi. I have the SIM from the GS3 box. My E911 address exists since my bb8900. WiFi Power Save is off. All routers I use, Linksys E4200 and Linksys WNR1000, Linksys 614. Wireless N and G. T-mo CS could not help. I understand that the WiFi calling changed from UMA to IMS. No separate app. GS2 users with same issue. Anyone with a clue? Please help.
Click to expand...
Click to collapse
how did you turn off the wifi power save?
I experience the bad quality calls on wifi, at my workplace it is perfect, but at my home, its terrible.
my home network is faster than my workplace.
I think this is something to do with the firewall as well.
and I couldn't find the way to turn off firewall on the dam verizon fios actionnet router.
---------- Post added at 01:27 PM ---------- Previous post was at 01:27 PM ----------
you can also try to broadcast the wifi on channel 3 only, that helped me in my case.

WPSM
There is a link earlier in this thread to another XDA thread. Phone app --> *#0011# --> menu button --> WiFi--> Press WPSM On/Off button.
My GS3 would drop a WiFi signal 3 inches from the router at work and 3 feet from the router at home. At least THAT is fixed now. However, I don't seem to get the same WiFi signal range as my Vibrant did using the same routers Trying the channel 3. I do have a few setting set to auto at least on my home router.
-greenboy- said:
how did you turn off the wifi power save?
I experience the bad quality calls on wifi, at my workplace it is perfect, but at my home, its terrible.
my home network is faster than my workplace.
I think this is something to do with the firewall as well.
and I couldn't find the way to turn off firewall on the dam verizon fios actionnet router.
---------- Post added at 01:27 PM ---------- Previous post was at 01:27 PM ----------
you can also try to broadcast the wifi on channel 3 only, that helped me in my case.
Click to expand...
Click to collapse

when my wifi calling was giving me issues i had to go on the tmobile site and set my area for 911 calls for the wifi calling. after that it worked flawlessly

duhitsrandy said:
when my wifi calling was giving me issues i had to go on the tmobile site and set my area for 911 calls for the wifi calling. after that it worked flawlessly
Click to expand...
Click to collapse
Yes, that's required, but not the underlying issue of the thread.

I've had wifi calling weirdness too. I called my sisters Verizon cell and there was no tone but after xx seconds it got her voicemail. When I call my phone on my house phone (Comcast) my phone rings but there's no tone on the house phone!

I NEVER get a ring. Just someone picks up our voicemail does.
Sent from my SGS3 Stock Rooted & Odexed
I love this thing!

[Q] Wifi, network, or hardware issue? I747

First of all I have done everything to find an answer to my issues, I've looked in a lot of places and searched a lot of different ways.
The last thing iI wanted to do is post here but don't even know how to ASK about my issue.
I have an AT&T i747 running task650 4.2.2 with underwear kernel.
I am using a ST LTE sim.
Even before I got the new LTE sim I had this issue.
My problem is my phone is getting bad network issues when leaving wifi on, but like when I leave my house, where I connectto wifi, it takes forever to get cconnected to a network if I do get connected at all.
Recently my phone is now displaying NO NETWORK even, like when I try to make a call in my house.
And when I leave my house I won't get a network sometimes unless I turn on and then off airplane mode.
I'm sure someone else has had this problem, maybe I'm just searching with wrong verbiage idk..
I don't even know what to call this problem let alone now how to fix.
If someone has an answer that would be cool.

Sprint G2 LTE/3G/data in general problem

About a week ago I was using my G2 and everything was working perfectly. I then went into updates and did a PRL and Profile update and BOOM my LTE stopped working and I was forced to 3G. Now for the past 4 days or so my 3G barely works and most of the time I get no data at all. I'm even starting to get zero bars and a red x. I've tried nearly everything I can think of to remedy this issue but nothing I've done has fixed it.
I've gone into the hidden menu and enabled LTE only and the LTE comes on and works great! But...You can't just be on LTE only because then CDMA doesn't work and you can't receive calls or texts. I've also turn the phone from voice centric to data centric but then I couldnt receive calls, I could only MAKE calls.
I've done all the obvious stuff like turn my phone from global to cdma/lte and vice versa. When I reset my phone LTE will come on for 2 seconds tops then stop and push me to 3G...then after a while 3G will stop working.
I'm completely stock, not rooted.
I've talked to a guy at sprint and he's told me that they know the G2 has issues with CDMA/LTE switching
Any help would be greatly appreciated.

I have read some people say take it in and out of airplane mode to get lte back but i would think a reboot would correct the problem as well. Maybe you have a sprint tower down in your area.
Sent from the Moon using Tapatalk with my G2

I thought this was only happening to me. LoL ... Eventually I got so frustrated that I moved to TMobile.v Even when I got good connection it was still horrible if that make sense. My wife doesn't have that problem but I'm moving her to TMobile to.
Did you try to do the permanently unlock at one point? That's when it started happening to me.

RHudyCT said:
About a week ago I was using my G2 and everything was working perfectly. I then went into updates and did a PRL and Profile update and BOOM my LTE stopped working and I was forced to 3G. Now for the past 4 days or so my 3G barely works and most of the time I get no data at all. I'm even starting to get zero bars and a red x. I've tried nearly everything I can think of to remedy this issue but nothing I've done has fixed it.
I've gone into the hidden menu and enabled LTE only and the LTE comes on and works great! But...You can't just be on LTE only because then CDMA doesn't work and you can't receive calls or texts. I've also turn the phone from voice centric to data centric but then I couldnt receive calls, I could only MAKE calls.
I've done all the obvious stuff like turn my phone from global to cdma/lte and vice versa. When I reset my phone LTE will come on for 2 seconds tops then stop and push me to 3G...then after a while 3G will stop working.
I'm completely stock, not rooted.
I've talked to a guy at sprint and he's told me that they know the G2 has issues with CDMA/LTE switching
Any help would be greatly appreciated.
Click to expand...
Click to collapse
I now suffer from this... And I am rooted. I have yet to figure it out... I was going to go back to stock but sadly you have crushed my hopes (since you were stock). If anyone else suffers this and knows a fix please chime in. I've exhausted my knowledge over the last few days...

There's a dialer code you can enter to reset data and force a reactivation. It fixed some weird data issues I was having. I'll see if I can dig it up.
---------- Post added at 10:38 AM ---------- Previous post was at 09:52 AM ----------
For a site that advocates search so much, XDA's search function is absolutely horrendous. It searches wildcards before literals(good luck searching anything with a symbol) and numbers that I copied and pasted from the thread somehow show no results. But I digress...
http://forum.xda-developers.com/showthread.php?t=2523252
It's either ##UPDATE# or ##CLEAR# I can't remember which.
All I remember is that the phone showed a bunch of dialog boxes, then the phone rebooted and reactivated data. I'd assume it was ##CLEAR#, but again, not sure.

http://forum.xda-developers.com/showthread.php?p=51364046
KitKat and Data roaming: lost data connectivity notification
sent from my lg-ls980 there are many like it but this one is mine

Try ##SCRTN# This reactivates the phone and has solved data issues for me in the past.
Sent from my LG-LS980 using Tapatalk

VECTUS said:
I now suffer from this... And I am rooted. I have yet to figure it out... I was going to go back to stock but sadly you have crushed my hopes (since you were stock). If anyone else suffers this and knows a fix please chime in. I've exhausted my knowledge over the last few days...
Click to expand...
Click to collapse
Actually it's a Spark issue. The only remedy is to wait for Sprint to put out an update or disable spark. You can disable it by dialing ##data#, go into LTE - edit (you'll need your MSL. There's a dialer code to get it just look here on the forums) then disable bands 26 and 41 and set their priority to 0. Afterwards your LTE will be back to normal.
Edit - ##443336772# Shows MSL code near the bottom of the screen

It almost seems to be an LTE handoff issue - they had similar issues with other devices during the buildout here in Chicago (my poor N2 was nearly 3G for almost 6 months due to the issue. I occasionally have issues but ##SCRTN# has resolved them.

RHudyCT said:
Actually it's a Spark issue. The only remedy is to wait for Sprint to put out an update or disable spark. You can disable it by dialing ##data#, go into LTE - edit (you'll need your MSL. There's a dialer code to get it just look here on the forums) then disable bands 26 and 41 and set their priority to 0. Afterwards your LTE will be back to normal.
Edit - ##443336772# Shows MSL code near the bottom of the screen
Click to expand...
Click to collapse
I can confirm this works! Thank you! That's like the ONLY combination I hadn't tried! :good:
garwynn said:
It almost seems to be an LTE handoff issue - they had similar issues with other devices during the buildout here in Chicago (my poor N2 was nearly 3G for almost 6 months due to the issue. I occasionally have issues but ##SCRTN# has resolved them.
Click to expand...
Click to collapse
Hey G. Yeah I had actually tried that already. I'm starting to think its the ZVA modem itself is messes up... Oh well at least I got my LTE/3G back. I can live without Spark. Its hokey too...

VECTUS said:
I can confirm this works! Thank you! That's like the ONLY combination I hadn't tried! :good:
Hey G. Yeah I had actually tried that already. I'm starting to think its the ZVA modem itself is messes up... Oh well at least I got my LTE/3G back. I can live without Spark. Its hokey too...
Click to expand...
Click to collapse
You're welcome! Glad I could help!

Not connected to Mobile Network after being on Wifi?

This has been a frustrating issue I've been having pretty much since starting up my T-mobile service about a month ago.
To start off, my G3 is unrooted and on the latest stock software version, 20e.
I use Wifi calling often because I get 0-1 bars of reception at work. All seems to work well until I go outside and try to make a phonecall over the voice network. I'll have plenty of signal bars, be connected to 4G even, yet when I try to use the phone dialer to make a call it will say "Not connected to Mobile Network." or something along those lines.
I haven't done extensive testing, but I believe the other day I toggled the "Mobile Data" off then back on and was able to make calls.
Has anyone else had this trouble? Is it something possibly to do with Wifi and/or Wifi calling?
I believe I could make a phonecall using Hangouts when I was off of wifi, which tells me that the data part is working, but not the voice network.
I contacted T-mobile support, but they just had me do the "typical" things, like shut down the phone, remove the battery/SIM, start everything back up. And sure enough, it worked after that, but I'd rather not have to restart my phone or toggle stuff to get it to work as it should without any hassle.
Thanks!

My wife has the same problem after the 20E update. Her mobile is stock as well. It did not happen on 20B.

thewalkingdude said:
My wife has the same problem after the 20E update. Her mobile is stock as well. It did not happen on 20B.
Click to expand...
Click to collapse
Interesting.... so is there a known solution for it?

rubejb said:
Interesting.... so is there a known solution for it?
Click to expand...
Click to collapse
Off the top of my head no. I'll dig around a bit and see what if anything I come up with.,

From the digging I did I can't seem to find any help. The only thing I can think of is to factory reset it thing and see if it helps. I am going to do do it on my wifes phone tonight.

Yeah, that's what I was thinking too... I'm not really in the mood to deal with restoring all of my apps and whatnot, so I'll hold off on the factory reset for now.
If you remember, could you let me know the results? If I know for fair certainty that a wipe will fix the issue, I might do it.
Thanks!

It's a network problem and it is worst on Samsung phones. I recently went and got a new sim card and it seems to have fixed it. I read it is because if you live in a area where there is poor coverage it causes your sim to where out fast.

punkhawaiian said:
It's a network problem and it is worst on Samsung phones. I recently went and got a new sim card and it seems to have fixed it. I read it is because if you live in a area where there is poor coverage it causes your sim to where out fast.
Click to expand...
Click to collapse
This started happening before my first month of T-mobile service was even up with a brand new SIM. I'm not saying that it's definitely not a SIM issue, just would seem unlikely that it's worn out that fast.

Mobile out of Network-Tmobile - Android
I;m having the same issue, turned phone off and on, checked Network connections everything looks fine, but now able to receive and send texts or make calls.
rubejb said:
This has been a frustrating issue I've been having pretty much since starting up my T-mobile service about a month ago.
To start off, my G3 is unrooted and on the latest stock software version, 20e.
I use Wifi calling often because I get 0-1 bars of reception at work. All seems to work well until I go outside and try to make a phonecall over the voice network. I'll have plenty of signal bars, be connected to 4G even, yet when I try to use the phone dialer to make a call it will say "Not connected to Mobile Network." or something along those lines.
I haven't done extensive testing, but I believe the other day I toggled the "Mobile Data" off then back on and was able to make calls.
Has anyone else had this trouble? Is it something possibly to do with Wifi and/or Wifi calling?
I believe I could make a phonecall using Hangouts when I was off of wifi, which tells me that the data part is working, but not the voice network.
I contacted T-mobile support, but they just had me do the "typical" things, like shut down the phone, remove the battery/SIM, start everything back up. And sure enough, it worked after that, but I'd rather not have to restart my phone or toggle stuff to get it to work as it should without any hassle.
Thanks!
Click to expand...
Click to collapse