lg g3 have 4g/sms but not 3g/2g/calling - G3 Q&A, Help & Troubleshooting

i try install all modem and all rom but problem is continue
and my best trying stock 30n rom but This ROM is also i have %10 signal how to solve this

How to solve 3g and calling problem

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[Q] WiFi signal low on KitKat ROM

Hi
I have an issue about the wifi signal. When I use 4.4.2 KitKat Rom the wifi signal of my device seems to be lower than usual compares to
4.2.2 Rom at the same distance and the same router. Same In every 4.4.2 Kitkat Rom but 4.2.2 works fine. Please help.
Thanks.
Im too have that issue? and i think solution know dev like K2WL

[Q] How to install Custom ROM on F240s Korean Variant

Hey Guys!
Before I move to my main question, I have very important thing to share that may help you understand the problem I am facing. I had a LG Optimus G pro E988 purchased few days ago. The phone have jellybean installed on it. So I decided to upgrade it to KitKat. But I could not find LG Update Software on my phone. So after browsing through XDa forums for an entire day, I have figured it out that my phone is actually F240s (Korean) and not E988 (as its software version reads). I guess that the some earlier user had replaced the stock ROM with custom ROM. But, it seems that flashing was not 100% successful as I am having facing several problems like low incall volume, frequent signal drop and wifi dis-connectivity, radio app missing.
I just want to know if there is any custom ROM available for my phone. And if installing the custom ROM will resolve most or any of the problems I am facing with this phone. Its my fourth thread and I am still unable to recieve a single reply to my problem. :crying: I hope that this time, I will get a reply.
Thanks
waqas657 said:
Hey Guys!
Before I move to my main question, I have very important thing to share that may help you understand the problem I am facing. I had a LG Optimus G pro E988 purchased few days ago. The phone have jellybean installed on it. So I decided to upgrade it to KitKat. But I could not find LG Update Software on my phone. So after browsing through XDa forums for an entire day, I have figured it out that my phone is actually F240s (Korean) and not E988 (as its software version reads). I guess that the some earlier user had replaced the stock ROM with custom ROM. But, it seems that flashing was not 100% successful as I am having facing several problems like low incall volume, frequent signal drop and wifi dis-connectivity, radio app missing.
I just want to know if there is any custom ROM available for my phone. And if installing the custom ROM will resolve most or any of the problems I am facing with this phone. Its my fourth thread and I am still unable to recieve a single reply to my problem. :crying: I hope that this time, I will get a reply.
Thanks
Click to expand...
Click to collapse
Hi. Please check my thread:
http://forum.xda-developers.com/showthread.php?t=2786566

[Q] problems calling on any rom D855

Hi there
since lollipop i change my official 4.4.4 stock rom to 5.0 leaked stock rom from skin 1980 and then i changed it to his chupachups rom, everything was going very good in both roms very fluid, and without having calls issues, then i try the cyanogenmod 12 rom from manusps4e, thats when im starting to have this issue:
everytime i try to make a call the screen goes black and i cant re-activate it, i can make the call but i have to reboot the G3 so i can use the phone again. its the same thing when i receive a call.
so then after many nightlies from this rom i try the cloudy and go back to stock but al got the same problem in every rom.
what you guys think it is?
do you think its firmware problem? rom problem? or hardware problem?
NOTE: sorry if i couldnt explain myself perfectly but im latin american so my English its not very good. and this is my first post

d852 issue with Lollipop and rogers internet. please help

Hi All,
I've been reading a lot of the development post and could not fix my issue yet. Hopefully someone can help here.
I have a Rogers d852 with kitkat and rooted.
I'm trying to install a candy5 lollipop custom rom and when I do that, I cannot connect to the roger internet.... it also does not allow me to connect to 5ghz wifi until I install the lp_modem... anyways, after installing the modem, the wifi works but still no roger internet at all... even after selecting the right APN.
I also tried installing the modem and then the stock lollipop rom and it works fine....
when I put the candy5 rom on after, I lose the networks again...
What am I missing here to have custom roms other than the stock lollipop rom working with the right modem?
thanks
My info
Lg g3
my info cont
d854 10b (what it said when I had kitkat installed).
provider is rogers, canada
update
I decided to try another roms too...
Cyanogen mod had the same issue... no internet at all. even with the baseband instaled prior to it.
update 2
I'm getting close...
with the rom bliss pop (also 5.1.1 based) I can get internet H. but still no LTE...
if someone can help me on getting the lte, I appreciate.
thanks again
c0br3tii said:
I'm getting close...
with the rom bliss pop (also 5.1.1 based) I can get internet H. but still no LTE...
if someone can help me on getting the lte, I appreciate.
thanks again
Click to expand...
Click to collapse
I have a d852 on Rogers and the rom AICP works fine with LTE. I got 2 random reboot though in less than a day. Battery life is way better than Cloudy G3 2.5.
After s second random reboot with AICP, I went back to cloudy g3 though. The wife said she called but nobody picks up the call. But I had the phone on me the whole time and no call whatsoever. So I have doubts on the rom
all good with blisspop except lte
I'm realy happy with the image I have... Blisspop 3.9.
the only problem is the LTE... but I get it is a problem on all the images based on 5.1.1 I tested... at least with this I get H+...
other than that, all works fine so far... and I tested pretty much everything I need...
can also say that battery life is 2x better than with kitkat...
again, if someone is able to help me with the lte on rogers, I appreciate.
thanks
it works now!
not sure why... but LTE works now... tested at 50mbits!
more funny is that I did not change anything...
today I when for some shopping and when I was checking the phone I notices that for the 1st time with this image it had LTE instead of H/H+.
I thought that perhaps somehow at how I had lost LTE reception... but no, for my surprise, when I got home there it was again... LTE.

3g and 4g not working in fulmics

I have lg g3 d850. I have successfully installed fulmics rom 6.0. But my 3g and 4g is not working now, it was working before in stock rom. What should i do now? Plz cooperate
inamqazi96 said:
I have lg g3 d850. I have successfully installed fulmics rom 6.0. But my 3g and 4g is not working now, it was working before in stock rom. What should i do now? Plz cooperate
Click to expand...
Click to collapse
Try reflashing the rom. Or use the newer version of it. ie, fulmics 6.5.
Check your apn also
G3 D855---ROM : #DU ---Xposed
Yesterday i updated to latest version. But still 3g and 4g are not working
Apn is fine also
inamqazi96 said:
I have lg g3 d850. I have successfully installed fulmics rom 6.0. But my 3g and 4g is not working now, it was working before in stock rom. What should i do now? Plz cooperate
Click to expand...
Click to collapse
Use RootExplorer app and navigate to /system/app and delete folder LTEConfig, reboot after deleting.
There is no such folder
I'm having this issue too. Help somehow.
Same bug here D850
In my case its sim card fault. check it! It's not a phone fault!
I was able to get mine to work but it keeps cutting out no matter what I do on my d850. I switched to N&N. It's been running really well.
Same issue here..
LG d852 using in India. After flashing fulmics (no addon, stock settings) 3g is not working anymore.
Initially was lg d852g and after flashing fulmics it bacame lgd852. Now updated apn and installed latest OTA but no luck..
any one can please suggest how to make 3g work again on vodafone india. with fulmics rom
jacob05 said:
Same issue here..
LG d852 using in India. After flashing fulmics (no addon, stock settings) 3g is not working anymore.
Initially was lg d852g and after flashing fulmics it bacame lgd852. Now updated apn and installed latest OTA but no luck..
any one can please suggest how to make 3g work again on vodafone india. with fulmics rom
Click to expand...
Click to collapse
It might be the wrong modem that you have installed for your phone. I remember that the first time I flashed Fulmics I had the same issues.
You need to find and flash the correct modem for your phone and country. In my case it's modem 21C, otherwise I get connection problems.
You can find a flashable ZIP of the modem on the forum.

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