[SOLVED] D838 Not Getting 4G/LTE

sinoako123 · Feb 9, 2015

My D838 is currently on D83820c-TWN
I am getting 4G/LTE on other phones when I move my simcard.
I have tried different ROMS but still cannot get 4G/LTE
Tried to edit my buildprop before and it caused a bootloop.
Help would be greatly appreciated.
Thank you.

See Post #20 for my solution

Screenshots:

jabi_james · Feb 11, 2015

My D838 is currently on D83820c-TWN too.. but i Do not have LTE option in mobile network... strange..

sinoako123 · Feb 11, 2015

jabi_james said:
My D838 is currently on D83820c-TWN too.. but i Do not have LTE option in mobile network... strange..

My D838 has "GSM/WCDMA/LTE auto" but only gets H.

candyman993 · Feb 11, 2015

Mine is the same
Sent from my LG-D838 using XDA Free mobile app

Franco203 · Feb 11, 2015

sinoako123 said:
My D838 has "GSM/WCDMA/LTE auto" but only gets H.

Does your sim card support LTE?

sinoako123 · Feb 11, 2015

Franco203 said:
Does your sim card support LTE?

Yes it does. Tested on other devices and got it replaced 2 times to be sure.

letschky · Feb 12, 2015

My GP2 is Taiwan Version 466-92,Lte works fine with D83820c

sinoako123 · Feb 12, 2015

candyman993 said:
Mine is the same
Sent from my LG-D838 using XDA Free mobile app

letschky said:
My GP2 is Taiwan Version 466-92,Lte works fine with D83820c

Do you know how to make 4G/LTE work?

letschky · Feb 12, 2015

sinoako123 said:
Do you know how to make 4G/LTE work?

I install the D83820c with Lg Tool 2014 with CSE Flash (Factory Reset),and after install works Lte without any Problem.
I am in Austria (Vienna),my Network Operator is HG Three

sinoako123 · Feb 17, 2015

I tried my sim on a note 3 and i am getting 4G but no luck on my D838.
Currently on D83820c TWN

Any suggestions?

Franco203 · Feb 26, 2015

I went back to kitkat D838 10b with LG FlashTool CSE flash, because of the poor battery life of lollipop, but now there is no LTE option in network settings!?! I tried to enable it in the hidden menu, but no success. What else can I try?

Sent from my LG-D838 using XDA Free mobile app

bjscott55 · Feb 27, 2015

Franco203 said:
I went back to kitkat D838 10b with LG FlashTool CSE flash, because of the poor battery life of lollipop, but now there is no LTE option in network settings!?! I tried to enable it in the hidden menu, but no success. What else can I try?

Sent from my LG-D838 using XDA Free mobile app

don't know if this will help but when I first got 4G I had problems this fixes it for me
Also what happened in hidden menu when you try to change to global/LTE it changes back to what is was on before?

try doing a full reboot when phone turns on put 5457#*838# in to access hidden menu scroll down to network mode and select global + LTE (if that works) next scroll to the top where LTE MULTI BAND test mode is, select it and choose LTE BAND ALL and select yes (this works best for me)

After go into settings and in the network tab select tethering & networks then mobile networks and change GSM / WCDMA preferred to GSM / WCDMA / LTE auto if still not getting 4G (I don't all the time in this settings just every known and again) try changing it to LTE / CDMA this forces 4G on but you do loose signal so if you or someone trys to ring it won't work although I always get 4G when doing this.

I've attached some pictures for reference.

Sometimes LTE / CDMA sticks so I have to reboot and change setting again in hidden menu.

I hope any of this helps if you give more details ill try and help

Franco203 · Feb 27, 2015

Thanks for your help mate, I just flashed the SEA version of D83810b over the original firmware for my device, which was 6WT/CHUNGHWA TELECOM_16G(TAIWAN), and now I have 4G option in network settings. However, I can't get LTE to work on my GP2. I will try my sim card on another phone and see if the issue depends on it.

sinoako123 · Mar 14, 2015

I have kept trying to get my 4G/LTE to work but still can't. Any other suggestions would be appreciated. Thank you.

Franco203 · Mar 14, 2015

sinoako123 said:
I have kept trying to get my 4G/LTE to work but still can't. Any other suggestions would be appreciated. Thank you.

Most probably your operator uses the 800mhz frequency where you live, which our device doesn't support, I have the same issue here. My sim card works perfectly on 4g with an xperia z2, it's just the lack of that frequency in D838 that keeps you from getting LTE.

Sent from my LG-D838 using XDA Free mobile app

sinoako123 · Mar 15, 2015

Franco203 said:
Most probably your operator uses the 800mhz frequency where you live, which our device doesn't support, I have the same issue here. My sim card works perfectly on 4g with an xperia z2, it's just the lack of that frequency in D838 that keeps you from getting LTE.

Sent from my LG-D838 using XDA Free mobile app

I got 4G when I first got my D838, with the same operator and simcard. When I updated via OTA, I lost 4G and can't get it back.
I tried my simcard on a note 3 and it got 4G.
I know the D838 is compatible and there is just maybe something wrong with the software after the OTA update that messed up the 4G.

Franco203 · Mar 15, 2015

sinoako123 said:
I got 4G when I first got my D838, with the same operator and simcard. When I updated via OTA, I lost 4G and can't get it back.
I tried my simcard on a note 3 and it got 4G.
I know the D838 is compatible and there is just maybe something wrong with the software after the OTA update that messed up the 4G.

Ok now you made me curious. Actually I haven't tried the 4G when I first got the phone, I just flashed the lollipop firmware and I've never been able to connect with lte, so I thought it depends on the lack of the 800mhz frequency.
If you say you got 4G right out of the box, I would like to know what keeps it from getting it back too.

Sent from my LG-D838 using XDA Free mobile app

enkhtwshn · Mar 15, 2015

Franco203 said:
Ok now you made me curious. Actually I haven't tried the 4G when I first got the phone, I just flashed the lollipop firmware and I've never been able to connect with lte, so I thought it depends on the lack of the 800mhz frequency.
If you say you got 4G right out of the box, I would like to know what keeps it from getting it back too.

Sent from my LG-D838 using XDA Free mobile app

Maybe you can get the frequency based where you are and what operator you use. Technically the 6th stage optimizes everything for the region
http://xdaforums.com/general/general/remove-korean-symbols-lg-dailer-t3054350

sinoako123 · Mar 16, 2015

enkhtwshn said:
Maybe you can get the frequency based where you are and what operator you use. Technically the 6th stage optimizes everything for the region
http://xdaforums.com/general/general/remove-korean-symbols-lg-dailer-t3054350

Thanks for your suggestion. I will try to look for my carrier's target operator and country then try this out.

sinoako123 · Mar 16, 2015

Finally!

After a lot of trials, I finally was able to get 4G on my D838!

This is what I have done:
1. Go to hidden menu > 3845#*838#
2. Select "WCDMA-Only"
3. Select "Modem Settings"
4. Select "Network Mode"
5. Select "Automatic"
6. Yay 4G

I hope this could also help others that faced this problem.

[SOLVED] D838 Not Getting 4G/LTE

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