yashsingh1/xdaforums huggingface dataset:
[G2 Q&A, Help & Troubleshooting] Leckz33:
Question of "C" firmware...

Hello to all of you, fisrt of all I present my situation: (Im from GDL, Mexico)

For the record, I have read all the entire post about this...

I bought from eBay a LG G2 from T Mobile, unlocked. When I started to set up my new phone, I realized that it lost the signal instantly (when I put the sim card), I mean, no after sms receiveng, calling and all of that. I had an OTA (D80110G) so I upgraded instantly. Things got the same.

I started to do some things that other users metioned (turn on airplane, turn SMS ON, select just one radio...etc...etc..).

I downgraded to the previous version to see if it was the same (D80110C)

So I went to Telcel service center and then instantly It got to work (calls, data), I thought it was because there is a good reception, Then 20 minutes after I was gone, things got the same, again.

I see just a little few people claims to got a solution, with another firmware.... Does somebody know if the previous versions I mentioned above are one of those? Because it doesnt has logic, The C one was the one who came out of the box, then the ota was for the G one..so I think the C one that you guys talk varies for the model right?

Thank you for reading, and I apologize for some mistakes in my redaction! :angel:

PS. here is a picture with the app mentioned in the post:
[G2 Q&A, Help & Troubleshooting] XERO_Racer:
D800 here and I started getting the no signal bug every few times throughout the day, after a long conversation on the phone itll do it, never had such issue, reverted back to stock ATT rom, still does it, whats funny is i never had the problem when i go to the city which is 15 miles from here, however they just recently put new LTE towers over there. However where i live its still just 4G, but i have yet to replicate the problem over there in the city. I do believe it started after i flashed one of the early ported Flex ROMs but i wouldnt be too sure if that was the culprit, I'll have to call customer service and see if its a tower issue
[G2 Q&A, Help & Troubleshooting] apvikes28:
My phone is doing it as well, no root or Rom. I would say it's not the Rom that caused it. This is literally the only bug on the phone that bothers me a lot. I hope the 4.4 fixes this. I love this phone, but dropping signal does not make the battery life worth it.

---------- Post added at 03:58 PM ---------- Previous post was at 03:54 PM ----------

Can you post a build number? I am on d800 att. Just trying to see if mine is on the same. Or would build numbers be different between carriers as well?
[G2 Q&A, Help & Troubleshooting] robogo1982:
I updated my D802 to SEA 10F and this issue is almost gone completely. I get 1% of the number of signal losses I had before, and to me that's a good result. :)
[G2 Q&A, Help & Troubleshooting] joanjgm:
My D802 doesnt seem to have that issue
[G2 Q&A, Help & Troubleshooting] babar86:
Where can I get the radio of this SEA 10F? For European could just flash the radio to see if that improves things?That do you think about it?

Thank you for your help
[G2 Q&A, Help & Troubleshooting] robogo1982:
There is a Dutch 10F modem in the modems thread.
[G2 Q&A, Help & Troubleshooting] babar86:
Where can i find the modem thread? I just found this link but it does not correspond!!!:crying:

http://xdaforums.com/showthread.php?t=2451426
[G2 Q&A, Help & Troubleshooting] robogo1982:
That's the one. Dig around the thread a bit, it's there. :)
[G2 Q&A, Help & Troubleshooting] Sir Alphonse:
Even after the spark update, my sprint g2 still has this problem. I'm starting to lose hope on this device :(
[G2 Q&A, Help & Troubleshooting] :
If users haven't reported it lg wouldn't know what to fix. Or spark, no idea what that is
[G2 Q&A, Help & Troubleshooting] GraphMusic:
Page 20 ;)

http://www59.zippyshare.com/v/19984974/file.html
[G2 Q&A, Help & Troubleshooting] cristy7610:
Hi guys

I have the same problem with signal on 802 international rooted and stock rom with custom recovery instaled(twrp).I want to flash a new modem for Europe but I don't know how to do that.Is is possible to flash only modem, radio to fix this problem?
[G2 Q&A, Help & Troubleshooting] babar86:
thank you very much!!!:D and i don't forget roboo1982!!!;)
[G2 Q&A, Help & Troubleshooting] cristy7610:
So I can flash this zip file for my lg 802 stock rom rooted and twrp recovery installed?
[G2 Q&A, Help & Troubleshooting] robogo1982:
Yes, you can. Keep in mind that the signal drops also depend on the ROM version, mine were fixed completely with 10F/UK open 10B.
[G2 Q&A, Help & Troubleshooting] cristy7610:
My software version is D802 10b-SEA-XX and Baseband version is M8974A-AAAANAZM-1.0.190036 ,Build number JDQ39B.

Now I flash the radio,maybe it will fix the signal problem.

---------- Post added at 11:55 PM ---------- Previous post was at 11:35 PM ----------

I flashed this and I have the same radio version like before.Were I was wrong?
[G2 Q&A, Help & Troubleshooting] babar86:
Do you have your answer!!;) The new modem work's fine ?
[G2 Q&A, Help & Troubleshooting] iXNyNe:
My wife is experiencing this issue on her vs980 Verizon lg g2. Calls frequently drop. There is no specific length of time (sometimes only a few seconds into the call, sometimes 20 minutes). It's not a touchscreen issue because it happens on speakerphone and Bluetooth.

I've tried the 12a 12b and 10b radios with no luck.

I've tried omnirom and CyanogenMod, both KitKat Roms, haven't tried stock yet but it seems people in this thread have.

Has anyone found any kind of solution? Is it a bad setting in the software? Or is this leaning towards a hardware issue?

Has anyone checked a logcat right after a a dropped call? I wouldn't know how to read the logcat, but most devs seem to recommend logcats
[G2 Q&A, Help & Troubleshooting] jonstrong:
I'm assuming it's not a general hardware issue with the design of the G2 -- I've got a VS980 on Verizon as well -- had it since Cyber Monday and have used the hell out of it -- fully stock, not rooted yet (I know, almost embarrassing!), and I've had NO dropped calls so far -- I'm based in central NJ, near Princeton, and have used it up and down the northeast corridor, down to DC, up into New England, in and out of Manhattan, etc. If it were a general issue with the hardware design, I should have experienced it. So...it might be a hardware issue that affects *some* of the devices, or it might be a firmware / ROM issue (or kernel, etc)...

I have no idea if a SIM could cause this -- maybe someone could comment on that? If that's even a possibility, it would be quick and easy to try out a new one.

Re: logcats -- it would be helpful if you could try to snag one yourself after an incident, and then post it here. That might (might) offer some clues...
[G2 Q&A, Help & Troubleshooting] rpedrica:
I have the same issue; although I don't think it's been mentioned here but mine does not reconnect to network until I restart the phone. So it just shows no bars with the 'searching for signal' circle over the bar area.

Android version: 4.2.2

Baseband version: M897A-AAAANAZM-1.0.190036

Build: JDQ39B

Software version: D80210b-ZAF-XX

Country: South Africa

I've switched to gsm/wcdma to see if this solves the issue temp until a new software release comes out. As far is I've heard, KK should be out shortly.
[G2 Q&A, Help & Troubleshooting] apvikes28:
Finally got the official 4.4.2 for mine, had a modem update in there and mine seems to be resolved.
[G2 Q&A, Help & Troubleshooting] :
try 10f, the ones people posted it got fixed.
[G2 Q&A, Help & Troubleshooting] Vasilis_S:
I'm running on version D80210E in Greece WIND Provider and I still experience this signal problem :(
[G2 Q&A, Help & Troubleshooting] rpedrica:
Ok so the change to gsm/wcdma only did not make any difference. There were no OTA updates so I checked using the LG support tool and it updated the phone to:

Android version: 4.2.2

Baseband version: M8974A-AAAANAZM-1.0.190036

Build: JDQ39B

Software version: D80210d-ZAF-XX

Country: South Africa

And things have been pretty good today so far. I haven't had any issues yet. Let's see how it goes.
[G2 Q&A, Help & Troubleshooting] MuzakaTheBeast:
i almost have the same problem as you do, though in my part, i got full signal and 4G running but, there is no internet. net will only come back if i restart my phone.
[G2 Q&A, Help & Troubleshooting] saroj_patra:
some minor help

I tried changing the "preferred n/w mode" to "GSM only" and signal reception is much much better and I am happy. This setting is present under Mobile Networks.

See screen shot.
[G2 Q&A, Help & Troubleshooting] drdnght mrk lazarus:
I'm also getting a variant of this, small moments when the cell phone is searching for connections...

Happens a lot less on stock, 10f kdz Flash.

When I'm on a custom Rom like cm11 it happens a lot more and the phone reboots completely...
[G2 Q&A, Help & Troubleshooting] ndnesh:
try updating to KITKAT and see if issue persists... KITKAT comes with a new modem
[G2 Q&A, Help & Troubleshooting] ku5ma:
Has anyone solved the problem of losing moderate signal? Upgraded to KK but still have no signal from time to time in the areas where other phones just have a weak signal. Has anyone any ideas whether it software bug or hardware issue?
[G2 Q&A, Help & Troubleshooting] drdnght mrk lazarus:
Just flashed a kitkat rom including the new modem file. problem is, can't really test it at the moment cause I depleted my monthly volume and if I dare use more data I get overcharged...

just 2 more days...

on other news, according to the new tool posted in development

I'm sporting a lg g2 with Region Suffix: A6GBBK

which is an 1 6GB/UNITED KINGDOM one

but I live in belgium ...

I'll update this post when I have news or make a new reply
[G2 Q&A, Help & Troubleshooting] Sultan yavuz:
I m from Turkey , have 16gb LG G2 . Im my home gsm reception is weak , I have problem with signal drop . Example I look there is 3 bar signal on table , I do not touch phone 3-5 minutes later ı look there is no signal , after 3-5 minutes signal comes back again but during signal loss they can not call me , I will sold G2 and never buy LG again . :(
[G2 Q&A, Help & Troubleshooting] drdnght mrk lazarus:
All right, tested,

Kitkat was even worse, periods with no service and even hang ups

so I returned to stock again and recorded the issues I'm having video

so yea, not the best way to have a cellphone

Hoping LG finds something to repair or replace or I'm moving to another nexus device
[G2 Q&A, Help & Troubleshooting] cherry676:
Data connection dropping when it goes to sleep

Hi all. A flagship phone with a signal drop issue is unexpected. But unavoidable as we already own it.

Coming to the point, I didn't notice signal drop but I am loosing my data connectivity once my phone stays in sleep mode for long. For instance, today I have noticed it when it wasn't used for two hours with its data on. When I unlocked it, data connection was lost. I retried connecting it, used airplane off and on but in vain. Only restarting will make it get back. And I am in C version. Most of u had ur issue resolved with C update but I still have it.

Sometimes without even going to sleep it just looses it's connectivity and never gets it back until I restart.

Here are my questions :

1. Is this bug cleared in kitkat update for D802, I am from India.

2. Anyone else experiencing slow charging issue? My phone takes around four to five hours for 30% to 80%. Any solution for this? I am using everything provided by lg.

3. I hear some static interference in the headphones, especially when I hear to radio. This is okay but had some noise interference while I am in call. Any solution for this?

I read the whole thread but still I need confirmation from fellow D802 user. It would be of great help for me. I will swap this if kitkat update has no solutions for this issue. It's been one week and I am completely disappointed coz I chose this over HTC One, Z1 and nexus 5.

2.
[G2 Q&A, Help & Troubleshooting] robogo1982:
D802 user, never had those problems ever since 10E.
[G2 Q&A, Help & Troubleshooting] cherry676:
So it is my device which is having issues. I think I need to swap. Thanks..

Expecting reply for my other questions as well.
[G2 Q&A, Help & Troubleshooting] Binoy2080:
Signal Drop

I am also in a similar situation, using an international D802 32GB.f**g its always droping signal. I had full signal in my home with my Nokia phone before using this ****t. Now its hardly showing 1 bar. Call drops and low quality voice is continues story for me. Dont know what to do with this f***k.
[G2 Q&A, Help & Troubleshooting] Binoy2080:
Anti G2 campaign

Folks

Infact My story also same, What I am thinking is, we have to aware other people about this rubbish toy, make them aware that never go for this piece. Let’s start a campaign through our Face book Twitter and other social media websites. Then only LG will consider our worries. We all have owned one G2 and decided never again an LG phone.
[G2 Q&A, Help & Troubleshooting] theflamemaster:
SIgnal wont stay

its annoying my iphone 5s stay connected on areas where signal is low one or to bars (edge) but my lg g2(d802 white 32gig) wont stay connected.its frustrating as im about to switch to it as my daily phone, went back to iphone until they sort this thing out, btw it doesnt matter whether your on stock or custom firmware, tried everything. hell my lumia is the best when it come to signal department.
[G2 Q&A, Help & Troubleshooting] DS-1:
I live in Italy and i've just bought a LG G2 16gb (Vodafone branded).

I've upgraded the system to KK stock ROM via OTA (it's the 20b firmware) and I've found that sometimes the phone results as turned off: if I call it from another phone, it just doesn't ring.

After trying 2-3 times, it's on signal again.

Is this the same problem you have?
[G2 Q&A, Help & Troubleshooting] :
not after the update modem f and later. I recommend warranty request. As that shouldnt happen anymore.
[G2 Q&A, Help & Troubleshooting] erto90:
Also on my italian d802 using vodafone and kk the signal is a bit unstable, but never lost it or lost a call..

So your phone guys got some serious problem..
[G2 Q&A, Help & Troubleshooting] xyliatos:
for the signal lost you must go to tethering & networks-->mobile networks-->network mode and set the preferred network type to GSM only
[G2 Q&A, Help & Troubleshooting] Magnus23:
Possible new input

Hey guys, i have the same issue, but slightly different. My device is ISAI LGL22, which is G2 for Japan market.

So, the issue: usually, if i have at least 3 bars - the connections os perfectly fine. But if it is less then that - phone can often loose connection and i also miss calls and sms because of that.

Some of the tricks mentioned in the thread sometimes work for me, for example switching off WiFi and then back ON - gives 4 to 5 bars in the same place! But, not for long. After a while - iºm back to the same poor/no signal in that area.

Today i have noticed one thing:

One of the poor signal areas is in fact in my appartment, right where i sit at my PC desk and here i miss most of my calls(very annoying), so today, when i was trying different tricks and watching signal change, the biggest difference i saw when simply connecting it to PC via usb cable!

Now i have STABLE 3-4 bars without moving an inch!

If i disconnect usb - signal goes under 2 bars and in two seconds it is gone. Switch on again... aaaaand stable 3-4 bars.

Any ideas on the possible causes or fixes?

Hopefully it will help and someone might be able to understand what is going on.
[G2 Q&A, Help & Troubleshooting] LG_G2_hacker:
LG G2 latest stock rom

-----------------------------------

Have anyone emailed you the latest stock rom for LG G2 ?
[G2 Q&A, Help & Troubleshooting] LG_G2_hacker:
LG G2

-------------------------------------------------------------------------------------------------------------------------------------------------

I have LG G2, Android version is 4.2.2 , Baseband version is M8974A-AAAANAZM-1.0.190036 , Kernel version is 3.4.0 , Build number is JDQ39B , Software version is D80210b-ZAF-XX (South Africa).

Where can I get latest kdz or stock rom (assume V20D) from ?

Where do I get the LG flash tool from ?
[G2 Q&A, Help & Troubleshooting] Sensamic:
Is this bug solved in 4.4?
[G2 Q&A, Help & Troubleshooting] Krayfish404:
I have searched a lot of posts to solve my problem - the same as all of you are experiencing. I did switch my phone to GSM as one of the guys have recommended, yes my phone still goes to No Service, but it does fix itself when there is signal again, this never happened before so I am somewhat stoked.

But the reason I am commenting - this is not an LG issue. I've had it on my S3, my S4, and the place it always happened was in my office - it also happened on my boss' iPhone 4s, and now on his S5.

My S3 was the worst - but this problem was quickly solved. Lots of research, and it ended up needing a replacement SIM, the previous was faulty. So try that first, also it is very common to have a faulty one. Then also very importantly - this specifically also happens if LTE is not enabled on your contract. Do not ask why. <<<Aliens OK?!!>>> But that did the trick for me. Apparently that is also a known issue. The latter could be country/network specific.

So right now this happens about once a month. It is not device or version of Android specific. I also don't see it being solved soon. My pain is that Android is not alarming you of being "offline" in long periods of time. I would say it should have an alarm if if goes on Emergency Calls Only mode for longer than 5 minutes. Not hide away like it does.
[G2 Q&A, Help & Troubleshooting] createben:
lg g2 signal drops when i hold

When I hold my G2 802 in my hand signal drops and network loss.Is that a problem of Mother board. i tried with different carrier sim's. But all are same. The problem mainly occurred in low signal area,where my motorola defy get full signal.should i give it for warranty repair? Please help me guys.
[G2 Q&A, Help & Troubleshooting] createben:
why nobody is replying
[G2 Q&A, Help & Troubleshooting] cherry676:
4.4 kitkat update is believed to solve the issue. So majority of people are having a good time with the phone. But I can still see a drop in the connectivity few time a day.. No solution.. Just be with it..

Sent from my LG-D802
[G2 Q&A, Help & Troubleshooting] Mr.Armaani:
Same problem on Lg G2 F320 LTE

when phone is on 2g coverage, It start dropping calls and delay text messages and when I use it in 3g or 4g coverage area even I get 1 bar signal level there is no drop calls and phone works perfect.

Any Idea how to improve 2G signal or antenna power etc ?
[G2 Q&A, Help & Troubleshooting] createben:
Did u'r bad reception problem solved?

---------- Post added at 01:12 PM ---------- Previous post was at 01:10 PM ----------

is it a problem of motherboard? any fixes for that?
[G2 Q&A, Help & Troubleshooting] roberto010:
Same issue for me. (LG-D802 32 GB White). The phone drops signal when in area with poor signal strength.

I'm from Italy and my operator is Wind. The phone is not branded.

Changing mode to 2G only doesn't fix the problem.

Here some information:

- KitKat 4.4.2

- Baseband M8974A-AAAANAZM-1.0.190084

- SW D80220d-EUR-XX

Any help? Can I try to flash a different ROM or just the radio module?

Thanks in advance.

Rob

Tested with stock rom D80220f-EUR-XX. Same problem.
[G2 Q&A, Help & Troubleshooting] xatzistnr:
Any updates on this

I have the same issue after I had my screen repaired. The problem is that My screen broke right after the update:)
[G2 Q&A, Help & Troubleshooting] sayi77:
Aynı sorun

Selam Yavuz, aynı şebeke sorununu bende yaşıyorum sen bu soruna bir çözüm bulabildin mi? yoksa çözülemeyecek bir sorun mu? ben telefonu yeni aldım gerekirse geri vereceğim veya satacağım senin tavsiyen nedir.
[G2 Q&A, Help & Troubleshooting] jadugur:
i using d80220b version on my d802 32gb and i have same problem like others weak signel strength.

i live in pakistan.

so can i try this 10e of any country on my phone ? or where i can find this can you provide us a link to download this rom.? thanks..

or how i can flash this with usind recovery or with something else ?

regrads.
[G2 Q&A, Help & Troubleshooting] vishal11in:
Bro, I use to have signal lost issue with my s2 with wifi on. My analysis, it is issue with the battery cells at particular percentage slab. Try to note that problem happens when you are at a particular % slab like between 0 to 30. If this is the case then I am afraid that one of the battery cells could have gone week which looses signal during that slab zone on high cpu demand
[G2 Q&A, Help & Troubleshooting] jedisurfer:
is this also a problem with the vs980 verizon version? I think the g2 signal quality isn't so great compared with my sony zperia z where I get LTE in most areas and on the verizon vs980 I'm constantly in edge 2g or 3g mode.
[G2 Q&A, Help & Troubleshooting] deep750:
Have any one found any solution to the issue?

I have to restart my phone when it looses signal, as it isn't able to reconnect to network.

I mostly occurs when I travel through areas with weak signal, eg. subway-tunnel in Oslo.
[G2 Q&A, Help & Troubleshooting] njaycl:
I've tested all baseband versions for the d802 to no avail. Ended up sending it in for repairs and got a replacement. Guess it's a hardware fault as I have no problems whatsoever now. Running stock, OptimusG3 and CM11/12 with different kernels and basebands all work great (aside from incompatible baseband-rom combos now and then).
[G2 Q&A, Help & Troubleshooting] yasser_fernandez:
Tips?

Hello everyone.

I recently got an ATT D800 LG G2 after having a Moto X for a while. I love this phone but the signal strengh on GSM 900Mhz and 850 Mhz is bad on low-med signal areas.

In my opinion this mobile has been optimized for LTE signals, and it has also 4 bands...but in my coutry (Cuba) we use just GSM 850/900 Mhz...sooooo

while the signal is low, there is an algorithm, in the RADIO/RIL that promotes the use of a prefered network...LTE, 4G, 3G or whatever...The result is that from 2 bars, instead of staying at 2 bars it goes to no signal...searches in LTE, 4G, 3G and all the bands, and after noticing no other choice goes back to 900mhz with two bars....and the loops goes again, causing problems on low signal areas..

I am sure the is some job we can do on build.prop to "disable" the kind of network we don't have, in order to prevent nonsense network searches. " http://xdaforums.com/showthread.php?t=595108 "

I hope some of you, after reading this can give us all further and most usefull tips.

Best regards to all!
[G2 Q&A, Help & Troubleshooting] slowdyve:
Started having this problem recently. Here's the post i made on general:
[G2 Q&A, Help & Troubleshooting] birkopf:
Perhaps the specification of local GSM/3G network ? Assuming the mobile phone producer is bound by network regulations in each country and each device has to have homologation, it is quite likely that each country varies slightly on network specification and best effect you will have on local ROM/radio. This is just my assumption, however your observations are very helpful - thank you!
[G2 Q&A, Help & Troubleshooting] subwrc:
Continuing my story from here :

I reinstalled german vodafone rom 30d, rooted, installed recovery and restored my backup from v30a open baltics (6ba). So now i have a v30a baltics with the baseband from german vodafone rom 30d and signal is OK now!

Someone else could stay with the german vodafone v30d and debloat it this way. While in vodafone v30d i backed up the modem partition in order to try it and flash it over a full installation of baltics .kdz rom, but i don't need to experiment now.
[G2 Q&A, Help & Troubleshooting] yasser_fernandez:
It is very interesting how different firmwares can change the signal strenght. I wich I could flash a firmware for the d800 that could improve GSM 900 signal strenght
[G2 Q&A, Help & Troubleshooting] 4Freedom:
I always flashed the same firmware of my country and i have never had a problem with signal, in both KK and LP firmware.

Just for share, i use just 3g(wcdma) i set it in setting so the phone dont go to 2g :)