LG G2 critical bug regarding signal

Hi,

There are options in wifi setting that may help especially the low signal setting. Have you play around with it?




-LG G2

Hi,

I think I discovered what seems to be a critical software bug regarding the signal of the LG G2 in weak signal environments.

In my house, the signal is generally very weak. However, it is usable. But when the phone shows 0 bars of signal due to it being placed in a very weak signal spot or hands covering the antenna, the signal strength never comes back and my number cannot be called until I take one of the following actions:

If I turn the Wi-Fi off, the signal comes back instantly. If I make a call, the signal comes back instantly and I can make the call. And if I turn the airplane mode on and then off, the signal reappears.

This has never happened on my Nexus 4, and it only happens inside my house where I have a weak signal.

Any ideas regarding the resolution of this ? Can I boost the signal sensitivity from somewhere in a secret menu ?

I hope that this issue will be solved in an upcoming update, but I can't be sure.

PS: I am running the International version of the G2, on Vodafone Romania.

Klotar said:

It sounds like it's working as intended. Wait -- before you lynch/stone me, here's what I mean.

First off, and I mean it sincerely, it does suck that the G2 does not perform as you might expect in low signal areas and that some feel that it is a piece of junk under those circumstances. I can understand that.

But look at it this way... in a decent signal area, the phone probably checks for signal at regular intervals (which varies by device), pretend for this example it's every 30 seconds. If the user is in a low to no signal area, and the last ten checks every 30 seconds still had no signal or low signal, "odds are" that the next signal check 30 seconds from now isn't going to be much different. So, the phone might increase the interval before checking again, to maybe every two minutes. Why? To conserve the battery, checking every 30 seconds (in the example) uses a certain amount of battery power. Checking more often would use more, less often would use less, and checking at current interval is "likely" pointless (not necessarily true but has merit).

So it may have increased it's interval to like every 10 minutes (again, just a made up example), and now you step outside the house and into a good signal area. But wait, it's still zero bars when there should be full bars, arrrgggghhhh!!!! Well, my long winded example is just to illustrate that it might be on it's 10 minute signal check interval. However, doing anything with the radio's (wifi on/off, airplane mode, make a call, etc.) will be enough to trigger it to recheck signal now.

I may have oversimplified it but I believe that this is a layman's explanation of what is happening. So to answer the hardware/software question... software.

Click to expand...

Click to collapse

You obviously have not read the thread and what it's about. This problem isn't exhibiting itself in low signal areas as you've suggested. This problem happens everywhere. From your post it seems you think the rest of us are stupid and have no clue what's going on. As if this is our first phone, so when we see something like this we go running and screaming "ahhhhh my phone has no signal, it must be a bug!!!" If I sound heated that's because I am, had you taken the time to read what was said, you'd understand that this is a problem that exhibits itself with ONLY the G2. Did you see that a few posts back a user actually uploaded a picture of his G2 side-by-side with his GS4 and the GS4 has signal with no problems? Did you bother reading what I stated? That for me it happens AFTER I made a phone call and hung up. Which means I HAVE signal. This happens when I'm AT the AT&T store. Why do you think they're willing to swap out 3 different phones for me? This problem happens in my house where AT ALL TIMES I get 4GLTE signal, EVERYWHERE in my house. It ONLY happens after I hang up from a phone call. There's a GS4 and an iPhone 5 in my house also, THEY'RE FINE. They don't lose signal after a phone call. And it only happens SOMETIMES, which means it's not a signal issue. If this area HAD a signal issue, it would happen ALL THE TIME or at least damn near close to it.

People like you just piss me off, before you make a comment, EDUCATE yourself on the the topic, then THINK BEFORE you write. Don't know how you can open your mouth and talk about low signal areas when a few posts back somebody actually uploaded a picture of their G2 side-by-side with a GS4. Nobody said this phone is a piece of junk in any circumstances. Obviously we love our phone and that's why we're here, to find out if it's a bug with the phone itself, software, whatever. Because we want to keep our phones. Do you happen to work in a carrier's wireless store by any chance? You sound like what the employees of those stores would say.

Tell you what, I'll even link the picture for you:
http://xdaforums.com/attachment.php?attachmentid=2448738&d=1386794259

And to the user above this idiot, yeah so far judging from this thread I'd say it happens only to GSM users... but as in the picture above, it happens while on Wi-Fi and also on 4GLTE... so I'm not sure what the problem is. Something funky with the radio I would think, or in the hand-off somewhere after it finishes with a phone call in my case. As I said in my previous posts, it's happened to 3 of the 4 D800s I've had. Had it been an isolated incident or had it ALSO happened to my first G2 I'd be inclined to believe it's some sort of bug with all GSM models. But because it's happened to 3 different phones, bone stock out of the box without so much as even entering in a Google account or anything, yet didn't happen to my original... I don't know what to think. It happens on AT&T's original firmware D80010d AND the update D80010o. So far it seems THIS THREAD is the only place I've been able to find on the internet that even talks about this problem. So this problem might not be widespread.

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!

I have seen a similar issue at times, on international version!

Sent from my LG-D802 using xda app-developers app