No LTE on VS980 through multiple ROMS - G2 Q&A, Help & Troubleshooting

Hey guys,
So my Verizon LG G2 hasn't had 4G service for quite some time. I was running the Cloudy ROM and lost it. I flashed different ROMs in an attempt to get it back to no avail. I flashed back to stock through TWRP and still nothing. I came across a thread that gave instructions to flash using kdz or tot files but couldn't get those to work. My phone wasn't being recognized by the programs. I don't have access to another computer to test either so I'm stuck there. I've checked APNs and they all seem fine. I'm getting 3G service just fine and everything else about the phone is great. I'm currently running SlimROM but no 4g still. Anything I can do? Any input is appreciated!
Thanks,
Bewb

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[Q] Not Reading Sim Card

Hey so i updated my LG G2 from 24A to 39A, but once I got to 39A my sim card could no longer be read. In the network settings tab it now says unknown and under Mobile network type it says disconnected. I tried bringing it back to stock 24A but it still did not work. I tried another sim card but nothing. Before I updated my phone I made a backup, but when I loaded it up it still did not work. I tried flashing different Roms but no dice. Its weird because I can use wi-fi calling and everything works. It is only when I am not on wi-fi where nothing gets read. Can anyone help me? Any help would be greatly appreciated.
Thanks
are you by any chance having this problem when you try vexxoaosp?
Im not entirely sure which one that is, but I dont think so. Could you provide a link to it so I can try it?
I don't think you should try it then.
Sorry mate, did you do a stock reset with a kdz file fitting your model?
I recommend you to use LG Flash Tool 2014 with a stock kdz file. There is a thread about it here.
I tried that...multiple times lol
Did you contact your service provider? Any warranty left?
I bought it second hand, so unfortunately no warranty

[Q] LG G2 D802 no lte connection after LOLLIPOP update

Hey guys. I really need some help now, becoming more and more desperate!
So the thing is, everything was working fine. Then I made mistake, flashed wrong ROM, softbricked the phone, returned to stock, still wrong KDZ (but phone booted), and then based on my IMEI and location finaly got the right KDZ (V30a-AME-XX). Everything works! Except, for some weird reason, the phone won't connect to LTE. That's the only thing - no LTE (It was working fine before)
Does anybody know what should I try to flash to get it working? I would check several variants if I just knew what to look for.
Thanks in advance
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Problem connecting to T-Mobile network on unlocked ATT G2 after Lollipop update

I have a D800(At&t) G2 that I have unlocked, before I had 4.4.2 CloudyG2 2.2 with no problems with network, but then I updated to their LP update (3.3) which bricked my device. After hours of trying to get out of bootloop I manage to get into recovery and reinstall the ROM. Now it boots up and works fine, but I get no service from my T-Mobile sim, I have added the APN correctly but cannot select it for some reason. There's no button to check, only lets me edit the APN. Not sure what I'm missing here, I have flashed the D800s newest radio as well, still no luck. There are no APNs in my list and I really need my phone to be working !!
Any help would be greatly appreciated.

Cannot get data from VS980 on Tmobile

I cannot get data using Tmobile SIM on VS980 (although I get voice). APN is set correctly. I tried editing the build.prop with these values but that didn't work. In the 4636 phone menu I can select the GSM options and when selected, it tries to connect but doesn't succeed. Only luck I've had is if I set the phone to 3G, then reset the phone, on reboot I'll have HSPA and it works but only for a minute or two and then it disconnects.
I have latest Paranoid Android ROM (and have also tried latest Euphoria). I have tried 26a modem and 39a modem; same results.
This video shows a person successfully getting LTE on Tmo on a VS980 (Although it's KitKat, is that the trick?)
I tried flashing stock LP TMobile ROM ported to VS980 and that actually works; I get LTE. Tethering works strangely though, only some sites respond. I really hate the stock ROM though, hoping for another solution, especially since tethering is borked.
Update: Success! Not sure exactly what did it but here's what I have done: flashed xdadebb 39a bootstack. Flashed Euphoria 20150630. Set to GSM/LTE Auto in 4636 menu.

Vs980 doesn't connect to LTE anymore

My two year contract with Verizon expired last week and I'm yet to sign up for a new plan. So currently I'm on the same data plan but on the month to month pricing.
Within 24 hours of my contract expiring, I noticed I can't connect to 4g/lte.I can however get a 3g signal and WiFi is fine. I tried flashing a couple of roms, reflashed bootstacks, and tried playing around with APN settings, but I still haven't been able to get a LTE signal. And it's not the location. I've had no success within a 20 mile radius from my home location.
I don't know if coming out of contract has anything to do with it, buy the timing of it seems to be too much of a coincidence to not consider it.
Any suggestions /tips are much appreciated.
I am having the same problem on my VS980. I have tried a 39A ... KDZ flash.. and still in 3g on the stock rom.
before the KDZ i tried Slim Saber, Cloudy 2.2, Extreme.
Could it be the sim card?
Thanks!
UPDATE:
KDZ back to 24A and 4G is back. I will step it back upto 39A and then get back to XDABBEB's rom. Hope this helps.
Thanks for the update. Glad it worked out for you.
I replaced the Sim card today and no luck. Tried the Sim in another phone and got LTE. So it's not my account. Even tried switching to another 39a bootstack.
Will update after trying 24a tomorrow. Thanks again
Still working great. I didn't try just flashing the boot stack I did a full CSE KDZ flash of the 24A firmware.
If just flashing the bootstack and modem work for you that would be great and you wouldn't have to copy all your files to the computer before wiping the phone. Good luck.
I finally got it working. Ended up flashing the 39a kdz and got 4g back. Lg_root and the 39a freedom tool got me back to flashing roms. Thanks for the direction on going the kdz route.
What I noticed is that if I flashed my TiBu update.zip file to get all my apps back, it puts me in the same situation. I lose 4g. And I have to do the whole thing over again. Ended up downloading all my apps and restoring data from TiBu individually.

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