Network drops when making or receiving calls - Verizon LG G3

Hey guys. So I've been trying to figure this out for several weeks with no luck and I was hoping you could help me. I have a Verizon LG G3 on AT&T on 10b. I can connect to 4G LTE and Edge just fine. However, when I try to make a call or receive a call on LTE, the network vanishes instantly. I'm talking from 3-5 bars to no service in within 5 seconds of calling my phone or calling from it. I've tried flashing different modems and the problem still persists. I already tried flashing the stock (what I'm on now), factory resetting, clearing the cache, etc. and have not been able to fix it. Today I called AT&T tech support and after they re-registered my phone I was able to make one phone call before the problem reappeared. When I made the call, my LTE dropped but I stayed connected through 2G/3G/Edge not sure which one.
The only other time I've had it working properly is when I had Cyanogenmod installed. However, that led to another issue. With Cyanogenmod, my phone would crash within a few minutes of booting. Most of the time I couldn't even make it through the setup. To be more specific about the crash, my screen would freeze and become unresponsive for a dew seconds and would then turn off completely. The green LED would turn on and stay on. Every time this happened I would have to pull my battery. The only way to prevent the freezing was to turn on airplane mode. If I turned off data or had the phone SIM-less it would still freeze airplane mode was the only solution.
If anyone can help me with either of these issues I would be greatly appreciative. If you need any more information or want me to post logs just let me know and I'll happily do so.
Here's a quick recap incase you don't want to read through the walls of text.
VS985 10b on AT&T
EDGE works fine
On 4G LTE network disconnects when making or recieving call
Cyanogenmod fixes network issues but freezes when not in airplane mode

Z3R01337 said:
Hey guys. So I've been trying to figure this out for several weeks with no luck and I was hoping you could help me. I have a Verizon LG G3 on AT&T on 10b. I can connect to 4G LTE and Edge just fine. However, when I try to make a call or receive a call on LTE, the network vanishes instantly. I'm talking from 3-5 bars to no service in within 5 seconds of calling my phone or calling from it. I've tried flashing different modems and the problem still persists. I already tried flashing the stock (what I'm on now), factory resetting, clearing the cache, etc. and have not been able to fix it. Today I called AT&T tech support and after they re-registered my phone I was able to make one phone call before the problem reappeared. When I made the call, my LTE dropped but I stayed connected through 2G/3G/Edge not sure which one.
The only other time I've had it working properly is when I had Cyanogenmod installed. However, that led to another issue. With Cyanogenmod, my phone would crash within a few minutes of booting. Most of the time I couldn't even make it through the setup. To be more specific about the crash, my screen would freeze and become unresponsive for a dew seconds and would then turn off completely. The green LED would turn on and stay on. Every time this happened I would have to pull my battery. The only way to prevent the freezing was to turn on airplane mode. If I turned off data or had the phone SIM-less it would still freeze airplane mode was the only solution.
If anyone can help me with either of these issues I would be greatly appreciative. If you need any more information or want me to post logs just let me know and I'll happily do so.
Here's a quick recap incase you don't want to read through the walls of text.
VS985 10b on AT&T
EDGE works fine
On 4G LTE network disconnects when making or recieving call
Cyanogenmod fixes network issues but freezes when not in airplane mode
Click to expand...
Click to collapse
I think you are talking about making calls on Voice over LTE. I am not surprised Verizon rom does not quite support it. Maybe you can try this swap boot.img hack to install AT&T rom and see if it solves your problem?
http://forum.xda-developers.com/showpost.php?p=58740774&postcount=43

Thanks for replying. That's my main theory too. However, according to my research, the VS985 didn't get VoLTE until the 12b update. I'll definitely try an AT&T ROM when I get the chance at the very least I'll probably learn something from it. Any chance there's an option to make LTE data only on this phone?

Related

[Q] LTE Galaxy Nexus forcing GSM/WCDMA

Hi all,
This is my first thread here, but I'm not too noobish when it comes to technology. However, if I'm breaking a forum rule or you need more information, please ask.
I have a GNex with Verizon running 4.0.2. I am rooted and have flashed Clockwork Recovery and in the past flashed MIUI; however, it was a little sluggish for me and at the time I didn't have time to fiddle with it so I restored to a Nandroid backup I had created before flashing. As a side note, I haven't been able to get CWM Recovery to work correctly in the past as it will flash correctly (using the Galaxy Nexus toolkit) and I can boot into it directly after flashing, but after booting into Android, restarting, and attempting to boot into recovery it will give me the android/red triangle error. Not sure what that means, but if I need to use it I can usually boot into it without flashing.
Anyway, on to the meat of the problem here. Earlier today I took my phone off of WiFi to use LTE here (Bay Area, CA) but my phone wouldn't connect to the cellular network. Nothing I haven't seen before; I cycled airplane mode and the "data enabled" option and restarted to no avail. Upon rebooting, I got the "Unfortunately, the process com.android.phone has stopped" twice in a row. At this point, no bars displayed at all. Confused, I looked into Mobile Network Settings and under Network Mode it oddly stated that the preferred network mode was set to WCDMA preferred (specifically, GSM/WCDMA preferred). I can try to set it back to LTE/CDMA but it will only reset it back to GSM/WCDMA.
WiFi works, but as soon as I turn it off it will revert to the greyed out bars inside a triangle. As I type this now, there are currently two bars, but they are grey and of no use. I just tried to call someone, and the call went through, but the double "com.android.phone has stopped" dialogue box came up again
I suppose I am willing to do a stock reset, but I'd rather not due to my large amount of music, video, etc on my phone; plus, it's just no fun to throw in the towel and do a reset
Any and all help is welcome, and like I said if you need more information please ask. I googled this issue and no similar threads popped up on any forums, so I hope that if/when my issue is resolved this will serve as a guide to others who experience this issue. That is, assuming they do; my tech issues are all too often unique to my own horrendously bad luck.
gracias, dudes.
Bump since it was buried.
Now fixed with a wipe/reset. Initially I wiped/reset and restored all apps/data (including system) with Titanium Backup, but after the system data had been restored and I rebooted I encountered the same exact problem. I wiped/reset again and just let the Market redownload all my apps and the problem has since stayed away.
Any ideas on what exactly could have caused the issue, though? I'm curious.

MROM-Olympus Issues

Hello guys, I would have posted this directly to the MROM thread but I can't due to not having 10 posts....so I'm posting here and hoping somebody can help me or draw attention from someone in that thread that is running this rom. I'm having a few issues with this ROM that are leaving me unable to use my phone at times and others that are just annoying.
[ROM] MROM-Olympus [CM7] build:20130330
Problems with the Phone function:
1. The biggest problem for me is sometimes trying to dial or receive calls stops working, and you don't know this, when everything else on the phone is functioning fine. A reboot will allow the phone to be able to dial out and receive calls once again. I have not noticed any patterns ...just when I get ready to make a phone call it says "dialing" and then after a few seconds a beep and it hangs up. Also as noted when this happens I'm unable to receive calls and everyone gets my voice mail. It was doing this after a install and without anything else being installed...I do feel that it's gotten worse as in happening more often but that could just be my frustration making it seem that way.
2. Another phone issue since day one: Sometimes after dialing a number the screen goes off and pressing the power button may or may not bring the screen back on or if it does the screen comes on for a split second then goes back off. It's impossible to end a call this way or to enable speaker phone, look up contacts. When it's functioning correctly a call is made then the screen goes off when i place the phone close to my ear and comes back on when i take it away. A reboot fixes this issue usually for awhile, I've also had to take the battery out twice because the power button did nothing.
Problems with the wifi tethering function:
3. Wifi tethering works but I've noticed problems on upstream packets. On 4G the phone can hit 5-6 Mbps down and 1.5 Mbps up on T-mobile. I've ran test via "speedtest dot net" which they have an android app so you can test your data speed right from the phone. Now when I connect "wifi tether" my computer to it and run the test from the computer I get the 5-6 Mbps down but the upload test takes forever to start and when it does I usually get anything from 25-220 Kbps. I performed this from linux, windows and an android tablet ..all report slow upload speeds while the phone directly running the same tests get very good performance. I'm wondering if this could be a issue with the wifi driver or possible kernel issue of sorts.
I choose this rom because from what I read it was one of the most stable and everything on the phone works which is the most important thing to me.
Thanks in advance!
Happened again today, phone uptime was 17hrs. I'd made a few phone calls and received one, pulled the phone out of my pocket to make another latter and it did it's thing where it says dialing .....a few seconds then the beep like when you hangup and then back to the contacts. I checked this time the status and it showed in service and data connected. I was also able to txt and browse the internet just not make or receive calls until a reboot.

SMS not working

I recently had to replace my stolen rooted/DarkSlide white S4 with a newer black S4, that was unfortunately already on ME7. I have it rooted and everything seems OK.
I have it up and running, but when on Wifi, SMS (not picture MMS) will fail to send. It circles around for about 2 minutes, then gives me a failure notice, then the option to resend, and that will fail. If I restart the phone or battery pull, it will work for about 5-10 minutes after a reboot, and the cycle starts again.
I tried a factory reset of the phone and tried messaging again before rooting. Not luck. I did another factory reset, rooted, and again, after 5-10 minutes, it fails.
Are there other APKs I could install that would help alleviate this? I could probably switch over to data every time, but that is beyond annoying. I shouldn't have to switch off wifi for the device to handle the handoff of the text automatically. This is really upsetting, so any advice, alternate APKs, etc would be great. Again, I can't flash any other ROMs or anything at this time since I'm on rooted ME7, not the MDK file with the bypassed loader.
edit: I have also tried booting into safe mode, send a message there, go back to normal, and it still fails after some time. I have also tried both bands of my home wifi. Data, browsing, and calls all work.
When you're on wifi, do you still have the 4G icon next to the wifi one? That is needed to be able to send SMS.
Tappin' and talkin' with Tapatalk.
silverfang77 said:
When you're on wifi, do you still have the 4G icon next to the wifi one? That is needed to be able to send SMS.
Tappin' and talkin' with Tapatalk.
Click to expand...
Click to collapse
I have had it both work and fail with the 4G symbol both being there and not, it's very inconsistent. What is consistent is that it only fails when wifi is enabled and its been a few minutes. Cycling the wifi off and on will make it work for another few minutes, or when I'm out and about in town not on wifi, no issues. Call connectivity is fine when at home on wifi.
I checked the SecMms.apk permissions (rw-r-r) and have tried my data connection access points as both global and CDMA/LTE/EVDO and same results.

[GT-P7500R (P4)] Tab 10.1 3G stopped working after airplane mode. (CM10.1 Nightly)

I updated to the latest nightly (9/22) to try and relieve this problem to no avail. I've been running CM Nightlies on my P4 since they've been available. I always manually download them since, for whatever reason, Rom Manager seems to detect my device as the P4-wifi. I assure you the 3G (HSPA) modem works. I have a SIM slot, with SIM that has activated service (UMTS/HSPA). My cell phone is on the same networks and it picks up signal from my carrier fine.
With that out of the way; My issue:
Two days ago, I was leaving my house to visit family, and I wasn't going to bring my charger for my Tab, so I put the device in airplane mode to conserve battery. In hindsight, I should have just asked the device to power off, but that's besides the point. When I tried turning off Airplane mode, the cellular network did not become available again; this situation has not changed since.
What I've done: Rebooted the device after switching out of airplane mode, re-entered airplane mode and left it again, updated to the latest CM. I've opened my tab and reseated the connections for SIM and antenna (at least, the connections I can reseat, I have), I've also completely disconnected power by unplugging the battery and reconnecting it. Additionally, I got into some of the hidden menus and verified that WCDMA, which, I believe is the underlying tech for the local HSPA connection, is preferred to the cell radio.
Looking at the device, if I ask it to check for mobile networks, the list comes back blank. The network status shows "UNKNOWN:0" and the lockscreen shows "NO SERVICE." instead of "NO SIM" (which is what it shows when I remove the SIM). From what I can tell the radio has shut off and will not come back on.
Throughout all this Wifi still works perfectly, so the device isn't useless, however, I'm planning to sell this device and I would like it to be as fully functional as possible when I hand it off to it's next owner, so getting this solved is very important to me. Any and all suggestions are appreciated and I'm basically willing to try anything at this point. I feel as though I've tried everything short of a factory reset, which I'm not sure if that would help (I've even wiped cache and dalvik).
In case it's relevant, I'm in Canada, carrier is Telus.
Thanks for reading.
EDIT: I've just finished restoring the device to Stock 4.0.4 (I've used this stock image before when I had issues with the device and confirmed it is fully functional) and I am still having trouble. this points to either a carrier issue or a hardware issue. I will be calling the carrier in the morning, despite believing that this isn't the case. any suggestions on what could be the problem are still welcome, I'm willing to try just about anything at this point.
@Mystik
Back in the CM 4.1.2 days on the e4gt...we had a similiar problem. Now, I don't have you're device. But when this problem arose in the epic. We had a work around where we would turn airplane mode on and power off the device. Then power the device back up. When that didn't work we had to flash a modem, then flash back to the one we wanted.
Also, make sure after you turn off airplane mode.. that the mobile data under settings/more is enabled... sometimes it will not re-enable itself.
Let me know if this works.. if not I would be happy to help you search up a fix..

LTE Data Flashing on/off

Just encountered a little problem today. From the beginning: My Note 3 was rooted/TWRP'd running Vision X 3.0. Gave my wife my new G3 and took the Note 3 back. When I wiped her data in TWRP and restored a backup (same ROM) the 4GLTE icon started flashing on and off. I wiped complete again, installed a new ROM and did the same. Then I Odin'd to the new update. Same issue. I did encounter an issue with switching the phones earlier in the day. I had to get Sprint to do it via chat due to the Note 3 not being deactivated/reactivated correctly when I tried through the site. So I am guessing it could be a bad SIM card or they muffed something during activation. It will at times stop flashing and give me full LTE, but if I reboot or shut the phone off/back on it starts flashing again and the phone gets warm. It will sometimes stop/start if I mess with Connections Optimizer too, either checking or unchecking. Appears to be trying to connect to LTE but something is preventing it from locking on. I would appreciate it if anyone that has run into this before can give me some ideas. I do have a service center in town, and will go in the AM if I cannot find a solution anywhere else. I have never encountered this before.
Also in settings for data, Mobile State flashed between Connected/Disconnected and Mobile Network Type flashes between LTE/Unknown along with the LTE icon in status bar.
Tried killing data and all that. Airplane mode etc.. Sprint service center says it may happen when updating and will calm down in a couple of days..I don't think it was the update since I didn't update until after it started.
Also failed to mention when I switch to CDMA only in Data settings it will stay on 3G and doesn't flash. Has to be an LTE issue. And it is not the towers in the area because the G3 is fine.
Since it's broke anyway, going to Odin NC5 and see what happens. Tried freezing Connections Optimizer and flashing a new Kernel but didn't work either.
EDIT: Nope. That didn't work either. Ugh
Apparently it was a Sprint issue. Had to let it ride for a day or so and now back to normal. LTE is good again. Was an issue on their end when something went wrong during the phone swap.
Had this same problem with my Galaxy Grand Prime and rebooted in safe mode and it stopped. Safe mode disables all 3rd party apps. It is a 3rd party app causing the problem. I had to turn phone off, turn back on and hold volume down button after seeing Samsung logo popup, then wait for the safe mode to appear in lower left corner and release the button. Flashing stopped after that. Turned safe mode off and its still good so far. Hope this helps someone!!

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