yashsingh1/xdaforums huggingface dataset:
[G2 Q&A, Help & Troubleshooting] gold3ndrag0n:
Ok, a few things. Had you not started deflecting and alluding to individual experiences and telling me to analyze when I'm not the one that failed at analysis of this thread, I wouldn't have had to talk to you like that. And until now you still fail to see what's plainly obvious, that even the person you responded to (masteril) was talking about what we were discussing, LTE to 4G handoff, which is nothing more than speculation at this point. Again you keep failing to understand... ours is not a problem of losing signal in low reception areas. Ours is a loss of signal in good or even high reception areas. Yet you keep coming to the same conclusion that our problems are the same. I really don't know how else to explain it to you. You keep saying your phone loses signal when "And with phone its under those exact circumstances. When cell signal is extremely low." We lose signal even when we have 3/4 bars, I've lost signal having 5 full bars of 4G. Do you see the difference? You're expecting your phone to maintain signal in a low reception area, that's not a problem with the phone, it's a problem with absurd expectations. Unless English is your second language in which case I apologize for being condescending, either take a reading comprehension class or just go away.

The article you linked was written in January of 2011 and is 2 years old, in terms of mobile phone technology that's like a decade. And even then the third reason the article lists, which is what you're referring to, was probably a problem circa 2008, as a phone's signal strength hasn't been determined by a passing bus or automobile at least since the advent of the smartphone. Today even if you were standing close enough to a bus to be road rashed I doubt you'd notice a difference in signal strength. And lastly, I hope I don't offend any Australians but... that article was written by Gizmodo Australia, last I checked (about June this year) Australia still operates on a 3G network, most third world developing countries have 3G.

Lastly, if you want people (namely me) to be nicer to you then... again, heed your own advice, read and analyze what I've said and respond with some comprehension, critical thinking, and analysis of your own.

---------- Post added at 10:45 AM ---------- Previous post was at 10:38 AM ----------

From your thread I'm thinking you've got 2 problems. The "Phone not allowed MM6" could be a botched root or carrier problem. And the second problem is probably what's going on with us. Does your phone ever get back signal at all or us it totally unusable now? How long does the loss of signal last usually? And does it happen to you in GOOD reception areas too? Sorry about the last question but as you can see from the last few posts, I have to ask it because apparently to a select few, your phone is supposed to retain signal in bad/low reception areas too. Oh and apparently it's also required to cook and clean for you and does laundry on Sundays. :confused:
[G2 Q&A, Help & Troubleshooting] jonstrong:
Since the OS itself is the same for all users within a given carrier (except for pushed upgrades and/or custom ROMs), but only some people seem to be experiencing the problem (that's a guess -- maybe all, but only a few are aware enough of the issue to report it in a place like this?), I'd suggest that the issue is probably not hardware, and probably not the OS itself.

That would narrow it down, potentially, to the radio img and/or the RIL (radio interface layer). Also wondering if there's any chance the specific PRL you've got on the phone is impacting the phones connectivity with various towers and radio bands. If these haven't already been investigated, I'd suggest that it might be helpful if the folks with issues -- and those on the same carriers, but without issues -- add the following info to their posts:

-- radio img version

-- RIL version (I think there are apps like GetRIL that may be usable to at least read the RIL info without root)

-- PRL

Maybe we'll see a pattern that will help us determine whether any of these might be related to the issue.
[G2 Q&A, Help & Troubleshooting] gold3ndrag0n:
From what you said I thought of several things... Like you said, the OS is basically the same with each manufacturer and carrier adding their own flavor to it, and since only some of us are experiencing the issue, it leads me to the conclusion that it's a hardware issue. Since each of us on the same carrier, all of our phone software for all intents and purposes are identical, so if there was something funky with the software it'd affect all our phones, not just a few. For example if all AT&T's phone are on the same radio image, and only a few exhibit the problem, it must not be the radio image. Unless it's a corrupted image, it must be another problem. If everything being equal, it can't function for some and exhibit problems for others.

Now it's been a while since I've done anything with my phone, been running stock for a few years, refresh my memory again? The radio is the baseband right? I dunno what RIL is but I read on another forum that might have been the problem for a Nexus 5 and some people had success using that app, I've downloaded it before but it doesn't support the LG G2, well at least not the AT&T D800 version, can't speak for other versions since I don't have them. And last I remember, and correct me if I'm wrong, but isn't PRL a CDMA only thing? That GSM doesn't have a PRL list that I can update? If not where do I find the option to update PRL list as it's not anywhere in the Service Menu or Hidden Menu that I could find.
[G2 Q&A, Help & Troubleshooting] jonstrong:
Re: radio / baseband - essentially yes -- I may be off a bit in this specific case (don't know) but typically, the baseband processor handles the radio functions in a cell phone, and the "radio" file is the firmware that resides in and operates the baseband processor. Across the life of a phone,carriers will sometimes release new radio files, typically to fix glitches, radio performance, etc. RIL's are generally two parts, with one part in particular determined by the vendor, and these serve as interface layers between the radio (baseband processor) and the phone hardware. From what I've seen, people on the exact same phone, with the same OS version, may wind up with different radio img's or RIL's, and various combinations of these - some working better than others. Hence my suggestion to see if we can get folks who are experiencing problems to let us know which versions they've got installed for radio's and RIL's.

For radio -- check (as you suggested) "Baseband version", under Settings / About phone / Software information. I don't think non-GSM phones are affected by this issue at the moment, but as an example, my baseband version (on Verizon Wireless - CDMA / LTE) is:

VS98012B-M8974A-AAAANAZM-1.0.190050

RIL is going to be a bit more problematic. There's an app in play store called "GetRIL" that would fetch the RIL and baseband version -- and even tell you if they match, and if you're rooted allow you to correct a mismatch. BUT...the current version doesn't support the G2 just yet. We'll have to search a bit more to see how we can read the RIL on the phone and, hopefully, determine whether RIL and baseband version match.

BUT -- if we can figure out how to read RIL, I go back to the idea that folks with issues like this should post baseband / radio version and RIL, so we can start to compare notes and see if either or both of these are associated with the problems.
[G2 Q&A, Help & Troubleshooting] gold3ndrag0n:
Right, but there's a problem. Like I said, I've had 4 if these brand new LG G2s straight from AT&T. My original one didn't have this problem, the 3 later ones did including the one I'm using right now. My original I swapped in for a different problem. So being that they're all AT&T so they'd use the same radio, why would some function perfectly fine while others exhibit this problem. And on top of that there's probably thousands of AT&T customers out there on the same radio that don't have this problem. Now it could be a problem if the mismatching RIL like you said, that's the only possible explanation because like I said, all things being equal, all AT&T D800 running the same radio should either all be affected or none be affected because being that they're all the same they can't be different. I can't root my phone because well... I'd rather not so I cant get the RIL right now to compare so it appears we're at an impasse.

Either way I'll post my baseband here, but like I said. All AT&T D800 run off the same baseband stock.
[G2 Q&A, Help & Troubleshooting] secondskin:
These signal issues are really beginning to anger me. I'm on Sprint and am loosing phone calls in areas where I didn't normally on my Galaxy S3.

I've noticed that I seem to automatically go into roaming if my phone is on 4g LTE before I make or receive a call such as when I'm running GPS with data on and then make or receive a phone call. I also seem to just drop signal out of no where and then get it right back after the phone call drops.

Now, Sprint's LG G2 is utilizing a new tri-band LTE chip so simultaneous voice and data over 3g and 4g isn't possible like it was on some previous phones. I'm wondering if there's a hand off issue when a call is received while data is on. However, it seems as though this may still happen even if my data isn't on.

I just tried a PRL and Profile update and will see if that helps. For those of you on GSM networks I understand that may not do you any good however, I don't really think this will solve the issue. I'm beginning to think the G2 just has crappy hardware. On a side note while my GPS locks it takes longer than my GS3 and definitely isn't as accurate. When I look at my location on Google Maps I'm several feet off my exact location in comparison with my girlfriend's GS4. I know there's another thread on GPS my point is just that the hardware on this phone seems crappy.
[G2 Q&A, Help & Troubleshooting] jonstrong:
I understand the frustration -- had my own share over the years. I'd just hesitate to assume the basic hardware is crap because you and a few others are experiencing as-yet-unexplained issues.

I don't know if the quality of the radio hardware is dramatically different between AT&T, Sprint and Verizon, but I'm finding that my Verizon VS980 is performing beautifully, especially in comparison to the Galaxy Nexus I used for the last 2 years. I no longer ever get the "robotic voice" effect that used to be fairly common with low signal on the GNex. No echo, much clearer voice, less background noise. The VzW variant doesn't seem to be suffering the hand-off issues that are described in this thread. But...as discussed, it might be the hardware, radio firmware / baseband, RIL or something else.

Over the years so many newly released phones suffer odd issues, not unlike this, and people tend to jump to the conclusion that the phone is crap...when after a couple of software and/or firmware revisions, many of the issues wind up resolved. It would be nice if the vendors could actually put out fully polished software on release day, but that's exceedingly rare these days. No doubt this is all very irritating -- I'm just suggesting that we don't know what the problem is just yet, and that it may wind up being resolved with future updates.
[G2 Q&A, Help & Troubleshooting] franz_cr:
Very interesting about the MM6 notification, I went to the carrier and they checked for more than an hour and assured me that from their side everything is fine and the phone should work. So the other way here is that the root was screwed up somehow, although I got no errors report in cmd window running adb. Thanks for the advice! :good:

On the other hand I have no signal all the time, meaning that the empty signal icon with a red 'x' is always showing in the status bar above, although I'm a very good reception area or no matter if I move to other areas in my city. When I reboot the phone and OS starts up completely and the window for entering the sim code is shown, the signal icon shows several bars, but 1 second after entering the sim code, and the phone does an authentication (I assume is something like that), the signal icon shown the empty bars and the red 'x', this happens no matter the carrier's sim I'm using (I have 2 different sims both from different carriers). Both sims work perfectly on other phones (I can make and receive calls) but not when inserted in the G2.

I discovered yesterday 2 annoying behaviors the one described above happens whenever there's the APN defined for that carrier (I mean under Network > APN) but if I delete the carrier's APN and reboot phone and then after entering the sim's code the signal icon shows empty but couple of seconds after shows the signal bars and I never loose signal, short after the "Phone not allowed" message is displayed. If I try to call I get the "Emergency calls only" message is shown.
[G2 Q&A, Help & Troubleshooting] gold3ndrag0n:
So I've some more information on this. I've been in contact with Tier 2 tech support over at AT&T and they referred me to a Case Management Team. They said the phone is indeed dropping off the network as it shows on my phone, they've checked around with the towers and said everything was functioning normally. They said it's either the phone or user error. Their solution: Swap the phone again, and if still the same thing then swap a different model. So at least it's a confirmation that it's not a network issue, all signs points to some sort of radio issue, whether hardware or software because the phone is indeed dropping off the network. Really like the phone and would rather not have to go with a different model but if this last swap still doesn't work, I might have to do that.

---------- Post added at 04:52 PM ---------- Previous post was at 04:42 PM ----------

Yeah sounds like something funky with the root and unlocking of that phone. Like it was an incomplete unlock or something. Have you tried reflashing to stock AT&T and then doing the root+unlock yourself? Or have somebody that knows how to do it do it for you? That's the only thing I can think of, like something went wrong with the unlocking so that when you've got an APN entered it's locking the phone out of the network, and when you take out the APN it maybe tries to do an automatic search or something so you get on the network but then your phone gets locked out. I dunno, I'm just guessing from what you're saying. But I doubt it's the same problem we're experiencing. Our phones just randomly drops signal but we do get it back and it does work most of the time. From what you're saying, it seems like your phone doesn't work at all.

Here's the go back to stock thread:

http://xdaforums.com/showthread.php?t=2432476

And this should be the correct rooting thread:

http://xdaforums.com/showthread.php?t=2448887

Good luck.
[G2 Q&A, Help & Troubleshooting] gold3ndrag0n:
Well... this is probably my last post in this topic. I was at AT&T today to swap out the G2, I REALLY liked that phone. The girl that was helping also happened to have the G2 as her work phone. She asked me about the problem and said she uses the G2 and hasn't seen it. I asked her if I could test her phone. After the 3rd call to VM, lo and behold--our bug appears. She said she's never noticed it but wonders if because it gets reception back in a few seconds that it's happened before but she just never noticed it. This leads me to believe it's some sort of a software glitch, whether with LG's Optimus UI or AT&T's crap over it. That would make 5 different phones that exhibit the bug, 4 AT&T replaced for me and the one she was using.

That being said, I really liked that phone. There are some advantages to the new model I selected, but in a a lot of categories it falls short to the G2 in my opinion. But AT&T and LG isn't even aware of the bug, how long will it take for it to be fixed? The feel of the G2's screen feels so smooth compared to this. If I could have 2 phones I'd definitely pick the G2. I want to support LG and let them know that they got it right and made a great phone, both in terms of design and feel, but at the same time I can't stand the bug. Sorry LG. Good luck guys.
[G2 Q&A, Help & Troubleshooting] skakub:
Exactly the same issue. H2o wireless, USA. I have paranoid android installed. Could this be the case?
[G2 Q&A, Help & Troubleshooting] ndnesh:
I have a similar issue here in Bangalore, India.

Though to be clear, it only happens in my house in my bed room. I have a very weak 3g signal there so to mitigate that I use the setting in network options to keep it to 2g only. However, even after selecting that, This phone keeps losing signal. Whereas my old Nokia phone running symbian has solid 3 or 4 bars in the same place.

---------- Post added at 02:32 PM ---------- Previous post was at 02:31 PM ----------

This is utterly unexpected from a flagship phone
[G2 Q&A, Help & Troubleshooting] blueknight1960:
I just got my sprint lg g2 on Jan 3, last night it started with the signal loss. I called sprint and no help really. Now I know this is going to sound totally unrelated to the problem,but it has worked so far for me because I have full signal now.I updated the PRL,nothing. I dl'ed gps fix and have had full signal since. I don't know and will not say the two have anything to do with each other, but hey it worked.
[G2 Q&A, Help & Troubleshooting] smudgy456:
Ive had my g2 since xmas and I've experienced these problems as well and i live in northern Ireland so ive the European model. Im losing signal in areas i shouldn't be, ive answered calls and they have cut off after a couple of seconds, my phone will advise me that I'm roaming in areas i shouldn't be and ive had good signal in previously. When i lose signal i have to search for networks again to select my network from the list. It will not refresh itself as quick as it should. So glad i found this post now....thought it was a faulty phone and was ready to send it back for a replacement. It doesn't happen a lot but enough for me to notice it and try research the issue. I actually thought it was other people's phones were the problem when calls would cut out cos i would look at my phone and would show good signal.
[G2 Q&A, Help & Troubleshooting] djjohn2:
Lg G2 from Norway

Hi,i have had 2 Lg G2 with the same problem losing signal..to wake my phone up i have to make a call to send a sms..mine is like up and down all the time..hope Lg G2 soon have a fix for this bug!!
[G2 Q&A, Help & Troubleshooting] ndnesh:
Hey guys... This may be too early to say, but I got an OTA update yesterday morning. I went from D80210B TO D80210C. It looks as though the issue is resolved. I get full signal in places I didn't before and it doesn't disconnect and it's all solid. Will monitor and report.
[G2 Q&A, Help & Troubleshooting] djjohn2:
Great!!

I have D80210a,no updates yet.
[G2 Q&A, Help & Troubleshooting] Aiki123:
Same here

Verstuurd vanaf mijn LG-D802 met Tapatalk
[G2 Q&A, Help & Troubleshooting] :
beware custom recoveries and root.

there is also a LG kdz tool that you can try. http://xdaforums.com/showthread.php?t=1073827 Just enter model and the serial(notimei) from your box. That's how I found the update.

flashing it via return to stock way in general section, be sure to backup your fotos as it will format or require a format after flash of all partitions.

---------- Post added at 05:51 PM ---------- Previous post was at 05:40 PM ----------

can confirm it's fixed on my clean flash of d802 c firmware, woot woot.

Lost signal and no crash :)
[G2 Q&A, Help & Troubleshooting] Aiki123:
I can confirm this.

Updated manually yesterday and issue seems to be fixed!

I did have to activate LTE via the secret menu because it is not an option in settings anymore but after that all works fine.

I can finally enjoy my phone!

Verstuurd vanaf mijn LG-D802 met Tapatalk
[G2 Q&A, Help & Troubleshooting] djjohn2:
Do you think we in Norway(europe) will get this update soon?
[G2 Q&A, Help & Troubleshooting] :
don't know actually
[G2 Q&A, Help & Troubleshooting] ndnesh:
Just as an update, I reiterate that the update to 10c has fixed the signal loss issues.

Cheers and hope everyone gets the update soon
[G2 Q&A, Help & Troubleshooting] Life Engineer:
Thanks bro for the update!

Currently I'm on custom ROM based on 10B on which I still have the bug!

Do you know what was exactly updated in 10C?! Is it a kernel or a radio? Can we flash something to fix it?

Thank you!
[G2 Q&A, Help & Troubleshooting] gold3ndrag0n:
Wonder if that update would hit AT&T before KitKat. At this rate KitKat would probably be here first which makes that update irrelevant. I miss the beautiful screen of the G2 and the nice ergonomic design. Kinda wished I'd held out a bit longer and waited for the fix for the G2.
[G2 Q&A, Help & Troubleshooting] ndnesh:
I am quite sure that the modem must have been updated. I do not know for certain, but I can say that the kernel has also been updated as the performance of the phone has improved. Things open faster, no micro lags etc.

Previously, in my bed room I had a lot of issues with signal drops and not being in network. Now I do not have that problem at all.

So I recommend flashing 10c and having a new start from there.

Cheers!
[G2 Q&A, Help & Troubleshooting] Life Engineer:
But I'm on custom recovery and rom so I can't take any OTA! Do you know any rom based on that!?

Can you please go to dialer and dial *#*#4636#*#* and pick first option then go down to see what is the network option you are on!?

Thanks a lot!
[G2 Q&A, Help & Troubleshooting] adev111:
Can you tell me what serial number I can input in order to get the d802c Firmware. When I type my in my serial number I get a down load for D80210f

The version on my phone is D80210f-EUR-XX and I still have the same problem so wanted to try the d802c to see if it fixes the problem?

Can anyone help please ?

Also if I do install 802c, on a phone that has 802f , will there be a problem?

Many thanks

Adev111
[G2 Q&A, Help & Troubleshooting] :
I dont have it on the f, maybe a reflash with factory reset.

also sometimes there just is bad reception :)
[G2 Q&A, Help & Troubleshooting] ndnesh:
I believe the 10f is newer than the 10c. The 10c is the Indian version. Not sure about Serial numbers etc.

For me it was not about the bad reception as my trusty Nokia had a constant signal in places this super smart phone used to lose signal.

---------- Post added at 04:17 AM ---------- Previous post was at 04:15 AM ----------

Hmmm download the kdz and flash using the LG flash tool. You don't need to depend on an OTA.

that doesn't seem to be working for me. The key code that you gave.
[G2 Q&A, Help & Troubleshooting] kodde:
Hey guys,

Just found this thread since it had struck me as weird that such a new phone as this had poor reception. Usually I would have few reception bars and sometimes people could not reach me and also getting SMS messages way late. I am using latest stable Cyanogenmod 10.2 rom, live in Sweden on Telia network.

I tried messing about switching the "Network Mode" setting from the default LTE/GSM/WCDMA to instead use GSM/WCDMA. Seems to work way better for me so far. Will try running this for a few days to see how this fairs. LTE/GSM/WCDMA was showing LTE and one bar, performed 6.74Mbit/0.21Mbit in a speed test. GSM/WCDMA had H and four bars, performed 14.77Mbit/2.41Mbit.