[Q] [VZW] VS98012B LTE Connectivity Problem? - G2 Q&A, Help & Troubleshooting

Updated my phone (VZW LG G2) to the latest software patch that went out recently (Dec 20/21?) and now my phone will default to 3G service more often than 4G LTE. My home gets very strong LTE service and I could speedtest up to 20mbps at times on it. After I updated, however, my phone will connect to 3G about 90% of the time. Rarely does it connect to LTE. This isn't just at my home, so I don't think it's a local tower issue as I've had the same problem in town as well.
Has anyone else encountered a problem with LTE connectivity after updating to VS98012B?
edit: If I switch on airplane mode and then turn it off, sometimes it will switch back to LTE.

Flashed modem only here, no problems.

If you are still on pure stock, call Verizon and let them address it for you.

I've been searching for this problem as well. My wife's HTC One is sitting beside my G2 Rick solid on LTE, and mine is stuck on 3g. This only seems to happen in the house, so maybe hers just gets a better signal than the G2. On the rare occasion I do get lte, my speed tests are always much slower than hers. I know it's not an lte problem because out in town with a stronger signal I can get about 40 Mb d/l
Sent from my VS980 4G using xda app-developers app

Yup, I have the same issue after upgrading to vs98012B. Mine is rooted by the way.
Sent from my VS980 4G using Tapatalk

I'm not seeing this problem. In fact, it's the opposite for me. I'm rooted and didn't want to go through the hassle of losing my custom recovery, so I waited until a stock, rooted version of 12B released. I flashed it as well as the corresponding 12B modem zip. I live in a fringe LTE area and it was not uncommon for me to see 3G in my house. Since the upgrade I've only been seeing LTE. I'm very happy with this update.

I've noticed today seems like I'm stuck on 3g
Sent from my VS980 4G using XDA Premium HD app

Related

3G constantly disconnects with excellent signal

I am in the Philadelphia area (excellent coverage of 3G & 4G according to Sprint) with a 2 month old Evo 4G. Everything in the beginning was peachy (I left ATT/3GS for Sprint) but now with full 3G bars, my connection constantly resets. Internet will not load, Pandora stops and pick a new track minutes later, nothing updates. I want to know if this is a widespread problem and what I can do about it.
I am running the most updated stock rom with Launcher Pro. I haven't really changed anything else. It is starting to annoy me. I am familiar with the 4G issues but never had a problem with 3G till now.
Any ideas or advice? I would say it started in the last week or so.
After you update your prl and profile, call sprint tech support since you're stock.
Ive been having problems like this for the last 2 days. Its just been slow, stuttering for no reason. I called sprint. Update profile and prl. Its been a little better today.
Sent from my PC36100 using XDA App
Been having this same issue out here in the Seattle area, not sure why. I'm rooted but it just started even though I haven't changed anything...

Modem issue or something wrong with my phone?

Have had the AT&T Galaxy S4 for a few days now and I have noticed that in my area if I go from a 4G area to a 4G LTE area the phone doesn't seem to prefer to connect to the LTE band.
Perfect example being I can sit next to a friend who has a Lumia 920 and he has LTE signal. On my S4, it shows plain 4G.
If I put the phone into Airplane mode and then take it back out, it will show the 4G LTE.
It seems to also do this if I go from a Wireless network the phone will prefer 4G over 4G LTE.
Any thoughts on this?
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
I noticed this also. It takes a significant amount of time for my phone to switch to LTE. I used to have great LTE signal at my university with S3, but now with S4 I only get 2 bars of regular HSPA 4G.
No problems here but I'm on rogers in Canada
Sent from my SGH-I337M using xda premium

Terrible Connection Issues

Hey all,
I'm having loads of problems with my connection lately. I've got a T-Mobile sim, and a Nexus 4 I bought from the Play Store. This problem's been happening for the last couple weeks, at least.
My connection has been slow, if it connects at all. Text messages come in minutes/hours/days later, if they come in at all. At first, I was running PA 3.60, without the 4.2.2 radio (I was running the one before it). I realized that I hadn't flash the new radio and bootloader, so I did that. Still no luck. So now, I'm running PA 3.60, with the 4.2.2 radio. I love in Southern California, where T-Mobile has always had brilliant coverage for me. Is there anything I can do? I've already tried a factory reset.
What area do you live in? The modding of their towers to add LTE messed up coverage real bad in most areas. It is still super bad here in Valencia but since they added LTE I just enabled LTE and now I get solid coverage.
I live in north SD county. That's interesting! I'll figure out how to enable LTE, and try that! Thanks!
I have had some pretty bad coverage with Tmobile lately too. I'm not aware that they are doing anything with lte in my area though.
Sent from my Nexus 4 using Tapatalk 4 Beta
Doesn't matter if it's in your area, they're leaning on surrounding towers for the traffic while they do all this crap

[Q] Data Issue VS980 - Verizon

Basically I have tried stock reset using LG Flashing tool i have rooted and tried numerous roms, but the problem is i boot my phone it has 4gLTE full then 5 minutes in it switches to 3g network. I have called verizon and tried everything they told me. Also i have even tried and made sure it was on the correct network which is Global or CDMA/LTE
I wanted to know if any deveopler can help me here to figure out the issue with why its not staying connected to 4g?
One of two things. There is issues with the towers around u which would be a Verizon problem. Or its hardware related
Sent from my VS980 4G using XDA Premium 4 mobile app
Esteway.619 said:
One of two things. There is issues with the towers around u which would be a Verizon problem. Or its hardware related
Sent from my VS980 4G using XDA Premium 4 mobile app
Click to expand...
Click to collapse
its sounding like its hardware related before i upgraded to the LG g2 i had .. i even dialed *228 to locate towers my area is all red on 4glte and im right next to the tower
can someone please help me with this issue it is irritating me very much because i pay for 4glte not 3g ****
so no update on this no one having the same issues as me loosing 4glte and connecting to 3g
Have you tried a new SIM card? On some LTE devices dialing *228 can actually screw up the SIM data. You should try a new card.
Sent from my VS980 4G using Tapatalk
Have you tried any of the different radios / modems? Might be worth a shot.
richielasalsa said:
so no update on this no one having the same issues as me loosing 4glte and connecting to 3g
Click to expand...
Click to collapse
Just got my G2 a couple days ago and I can confirm that I am having the same issue. I haven't found any fixes yet. It does seem that as long as I am actively using the data network, I keep 4g. Once I quit using data or go to wi-fi though, I switch back to 3g after a short period. Quick toggle of airplane mode and almost instantly connects back to 4g again, with the same results of dropping shortly thereafter.
I'm in a spotty area, 4G sticks on one bar and rarely reverts to 3G. Signal loss very rarely. Always comes back auto. Faulty modem sw, SIM, hardware, or towers.
I called lg about the issue they say it was Verizon's fault and there radios .. So they sent me the international version works perfect now I would recommend anyone here to drop Verizon they are **** and highly overpriced

Note 3 lte won't log on to 4g help please

I had 4g and was looking at the service mode and now it won't pick 4g up i'm running lollipop any help would be great.
I am afraid I can't help you other than writing that I too had severe LTE/4G problems on lollipop. Samsungs lollipop that is. Wouldn't stay on the network, terrible signal strength and so on. No tethering or hotspot when I somehow managed to use LTE. Had to change manually to 3G to get my tablet to connect to the internet. Weird. Ever since I'm running cm 12.1 and dumped the Samsung firmware I get stronger signals, am on 4G all the time and am very happy. None of my peripherals has issues to reach internet now. To me theae problems seemed to be Samsung related. Which firmware do you use?
Sent from my SM-N9005 using Tapatalk
sorehammer said:
I had 4g and was looking at the service mode and now it won't pick 4g up i'm running lollipop any help would be great.
Click to expand...
Click to collapse
I have same problem.after some change in *#0011# to lock on 4g only now I do not have 4g.
Sent from my SM-N9005 using Tapatalk

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