Lg g2 d802 network register problem - G2 Q&A, Help & Troubleshooting

So i have a huge problem.
It seems that the phone has problem registering to the network.
I first saw this a week ago when trying to call someone... i could make the call, but it showed that i had enough signal (more than half).
At first i was thinking then the one i was trying to call had no signal or had closed the phone.
But i then noticed that my phone was the problem.
It simply could make a call even though it showed that is was register with the network.
Sometimes i rebooted the phone and it worked for a couple of minutes, and i could make calls, but if i left it be for 2-3 minutes and tryed to call someone , i could'nt.
Sometime if i went to airplane mode and came back i could make calls, but after some minutes i had again problems.
I tryied everything, like :
- no wifi
- no gps
- reset to stock
- use only 2g
- use only 3g
- use 4.2.2 or 4.4.2 or 5.0.x
Nothing worked.
Has anyone had these kind of problems ?

So i sent it to lg service, and they said it was the motherboard.
So bummer ..
Topic can be closed.

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iMate PE on T-Mobile/USA loses network

Hello all,
I've used this i-mate PPC PE on T-Mobile USA network for over a year now with no major problems. About five days ago, I noticed that I didn't get some scheduled messages on time. I checked the phone and it showed 3-4 bars of signal strength. I tried calling the voice mail, and the call didn't get through. The phone seemed to be dialing as usual, but it never connected. After soft-resetting the phone, it got back onto the network. This situation repeated several times. It cannot make even 12 hours without hanging like this. Going into flight mode and back brings it back to life. The only change I made last week was to add some photo contacts (never used this feature before). I wonder if anyone else ever experienced this type of problem. It seems like either the radio module gets stuck or maybe something is wrong on the provider's side. Please let me know of your thoughts.
Best regards,
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[Q] Network Problems with nexus

Hi Guys,
I have a major problem here. I got nexus 4 imported to india. I use it with airtel network one of the bests here.. previously i was using win 7.8 phone without any issues. Since the time i've started using nexus 4 my gf is complaining my phone will be not reachable most of the times.. once if she sends a msg she will be able to call. and the problem i myself have seen is like sometimes when i try to call a number right next second it gets disconnected and the phone vibrates, once i tired to call a number for 15 times all the attempts. if i try after sometime it will work. the network bars will always be full. the same thing happens when i try to use 3g. I am still in stock rom. nothing much installed. shud i try a factory reset . please help guys.
Same Problem
I am facing similar issues, with network disappearing after every call for some time. Also data capabilities are greatly reduces compared to my previous phone, even though i am using the same network Airtel
adithya.scor said:
Hi Guys,
I have a major problem here. I got nexus 4 imported to india. I use it with airtel network one of the bests here.. previously i was using win 7.8 phone without any issues. Since the time i've started using nexus 4 my gf is complaining my phone will be not reachable most of the times.. once if she sends a msg she will be able to call. and the problem i myself have seen is like sometimes when i try to call a number right next second it gets disconnected and the phone vibrates, once i tired to call a number for 15 times all the attempts. if i try after sometime it will work. the network bars will always be full. the same thing happens when i try to use 3g. I am still in stock rom. nothing much installed. shud i try a factory reset . please help guys.
Click to expand...
Click to collapse
I am also facing same problem. Any idea what went wrong ?
saurabhmishra said:
I am facing similar issues, with network disappearing after every call for some time. Also data capabilities are greatly reduces compared to my previous phone, even though i am using the same network Airtel
Click to expand...
Click to collapse
In my case after 10-20 mins i will get a miss call. Looks so weird.
If somebody tried to call me most of the time they will get messages like i am not reachable. After 2-3 minutes i will get a miss call alert. And sometimes after 10-20 mins i will get a miss call.
My phone is Nexus 4, 4.4.2

[Q] No service, out of coverage, radio issue.

I'm in Estonia. Phone is N4 16GB stock 4.2.2, no mods/no root.
Have an issue with gsm radio.
When phone is active, then i have signal, I am able to call out and receive calls, BTW, calls don't drop. When left untouched for approx 10minutes it is cut from carrier. It does show the coverage bars, but when called in, then states as out of coverage. When trying to place call it hangs in dialing display. When trying to end the stuck call, it hangs on ending call display. Have tried different SIMs from different carriers, the problem remains. Only cure so far is to reboot, then i get next 10 minutes of service. Have restored to factory settings couple of times, tried without applying Google account. No luck. F***!
What to do? Has anyone faced similar issue?
Rolled baseband M9615A-CEFWMAZM-2.0.1700.48 back to M9615A-CEFWMAZM-2.0.1700.27, got longer usage time, radio still freezes
I get weird data loss too with 48, never calls though. I too prefer 27 as a result and that just works for me.
With 27 however your autofocus wont work anymore (camera) but since I don't use it that much guess that's not a biggie (touch to focus still works however).

[Q] Nexus 4 repeated signal loss and calls not coming through

I've got some serious issues with my Nexus 4, I've found posts with similar problems but not exactly what I have. I'm at a loss what to do next so any advice would be much appreciated.
I bought a N4 around March this year, direct from Google, and connected it to TPG Mobile here in Australia which uses the Optus network.
It was fine until about the end of May or beginning of June where it started losing signal regularly. First thing I noticed is it would start dropping calls and displaying "No network available", the triangular status bar at the top would go blank (completely black, not grey) for about 30 seconds, then it would return to normal signal and I could make calls again. However it would do this every few minutes, whether I was on a call or not, and each time it would last roughly 30 seconds and then return to normal.
Around the same time I started to receive SMS on either a delay, or they'd arrive on-time, but then keep sending multiple times for about the next hour.
I rang Google, they got me to go through recovery mode, then it worked fine, for about 24 hours, before it started again. They sent me a new device, which did the same thing within hours of activation, so I requested a 3rd device. At the same time I thought it might be the sim card, so I got a new one of those too.
My 3rd device and new sim card worked perfectly for about 3 days then the same problem started. Factory resets etc seem to fix the problem for either minutes or hours, but never permanently.
Then last week I noticed further weird symptoms, I started getting the usual sms to say someone had called and left a voicemail, however my phone never showed any sign of a call (visual, audio or missed call in the call log). I confirmed with several people who tried calling me and they confirmed the phone rang on their end before going to VM. I tried it myself from a landline and it randomly rings or doesn't ring on my end, however I also noticed when I hung up on the landline without answering my Nexus 4, it continued to ring indefinitely, ie. it hadn't registered the caller hung up.
My provider assures me there isn't an issue in my area, my wife uses the same provider (with an iphone) and has not had these issues. I can't swap sim cards with her though as she has a full-size sim. I tried another sim with my phone for a few hours and it worked fine, however my phone with my sim will sometimes go a whole day without issues so it wasn't long enough to truly test it.
I've deleted all apps that might somehow affect it and the hasn't helped either.
Basically I'd like to know is this likely to be a phone issue, and I pursue the issue with Google, or some sort of network/sim issue and I pursue it with my provider?

Losing Service After 1-2 mins

I have an SGH-I337M on the Bell network. After a flight, I took the phone off of airplane mode and it did not regain service. After a restart service reconnected (data and texting) but then disappeared after a minute. Generally, I do not get "No Service" errors and I have never gotten "SIM Card Removed", the bars and LTE in the corner persist although nothing seems to come through. I did some searching and found this thread:
http://forum.xda-developers.com/galaxy-s4-att/help/service-problem-i337mvlufni2-t2977997
and gave the instructions a shot. I was able to use data and text for about 5 minutes initially, but since the first boot it has reverted to the original problem (coincidence?). I also took the phone in to a repair shop and had the SIM tray replaced, which did not solve the problem either. I have tried using ODIN to return to stock (I337MVLUFNI2_I337MOYAFNI2_BMC) and have tried CM11 and unofficial lollipop releases. The issue is identical in all cases.
I'm really hoping I missed something obvious here.
Thoughts?
https://www.dropbox.com/s/yr1p2u7rffnzdgc/11082962_10203649237567940_2128062907_n.png?dl=0
Tested my SIM in another phone and it worked perfectly. Tested different SIM in this phone, same issues.
Bump.
The same issue here. The service/network is lost a few minutes after reboot. When I reboot my phone everything works perfectly fine - call, sms, switching to airplane mode, navigating through Mobile Networks menu items (in Settings->Connections->More Networks->Mobile Networks). After 5 minutes all those features/apps stop working. Everything looks normal but when I start one of those apps, the app hangs/freezes and stays frozen. For example when I try to place a call, the app is stuck in 'Dialing....' process and stays like that forever. When I try to end the call the app is not responding. The same thing with all apps that need/use network. All those apps stay frozen when started. Notification bar is showing I am connected to the network and network icon is showing strong signal. I tried different roms including stock rom but that didn't help. Looks like a software issue but I could be wrong.
Any suggestions anyone?

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