Develop Bugs

LTE/CDMA in ro.radio.networkmode screws up phone.

Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
UPDATE... looks like as long as i dont try to make a call the option to switch it back to auto is still there. One a call is attempted and fails the option to set to auto disappears.

fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.

hyelton said:
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.
Click to expand...
Click to collapse
I understand but after it's been on LTE for a while it doesn't give you the option to switch back.

fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
fastwanabe said:
I understand but after it's been on LTE for a while it doesn't give you the option to switch back.
Click to expand...
Click to collapse
Depending on what rom your using under mobile networks there is network selections with
LTE/WCDMA/GSM
GSM Only
WCDMA Only
and LTE only

hyelton said:
Depending on what rom your using under mobile networks there is network selections with
LTE/WCDMA/GSM
GSM Only
WCDMA Only
and LTE only
Click to expand...
Click to collapse
Right, thats what normally the options are however after about 5 min after selecting LTE/CDMA the only options that appear were.
LTE/CDMA
CDMA
thats it.

fastwanabe said:
Right, thats what normally the options are however after about 5 min after selecting LTE/CDMA the only options that appear were.
LTE/CDMA
CDMA
thats it.
Click to expand...
Click to collapse
How are you changing it? Changing it via Build.Prop? Then there is your problem, JUST change it using the setting under mobile networks..

hyelton said:
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.
Click to expand...
Click to collapse
hyelton said:
How are you changing it? Changing it via Build.Prop? Then there is your problem, JUST change it using the setting under mobile networks..
Click to expand...
Click to collapse
I'm changing it under mobile networks.

Stop changing it to lte/cdma and you're phone will no longer mess up. Leave it on gsm/wcdma/lte auto. You're phone will switch when the appropriate network is available!!!
Sent from my LG-E980 using XDA Premium 4 mobile app

fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
Simple fix. Just select airplane mode for a few and then toggle it off and you'll see your network options come back once data roaming turns off and your carrier logo appears. I typically run lte/CDMA to get consistent lte speed bit when a callsade I have the same issue as you. But I just gave your the fix so your good
Sent from my LG-E980 using Tapatalk 2

Jammol said:
Stop changing it to lte/cdma and you're phone will no longer mess up. Leave it on gsm/wcdma/lte auto. You're phone will switch when the appropriate network is available!!!
Sent from my LG-E980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks a lot captain obvious, the point of the thread wasn't to "not switch it" dude, it's finding a work around and make everybody aware of what happens.

fastwanabe said:
Thanks a lot captain obvious, the point of the thread wasn't to "not switch it" dude, it's finding a work around and make everybody aware of what happens.
Click to expand...
Click to collapse
It would happen on any phone!!!!!

[Q] LG G3 D855 LTE issue problem in UK

Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun

lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
You probably have the wrong band version i maybe wrong

jaythenut said:
You probably have the wrong band version i maybe wrong
Click to expand...
Click to collapse
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.

lunlun99 said:
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.
Click to expand...
Click to collapse
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated

jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ?

jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ? and it's show up Connection problem or invalid MMI code

lunlun99 said:
what's activated mean ?
Click to expand...
Click to collapse
If you have 4G it will say under band i think
And you do have 4G contract with your carrier

Yes. the SIM work my other phone in LTE network
jaythenut said:
If you have 4G it will say under band i think
And you do have 4G contract with your carrier
Click to expand...
Click to collapse

I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.

lewisco said:
I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.
Click to expand...
Click to collapse
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app

Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.

There was a discussion about this in the UK thread, some phones came with 4G deactivated (on the 800MHz band used by 3 and Vodafone) that had to be activated at every boot. Replacing it fixed the problem as its not supposed to happen. But since the phone is from Asia who knows. Im not sure if flashing the eur version of the rom would work?

lewisco said:
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.
Click to expand...
Click to collapse
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.

Lennyuk said:
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.
Click to expand...
Click to collapse
Can you recommend which FW to use?

Same here d855 version 3gb ram from Hong Kong no lte in the settings

stinkypoo said:
Same here d855 version 3gb ram from Hong Kong no lte in the settings
Click to expand...
Click to collapse
LTE will work from the hidden menu, or download 4G switcher from the Play store which will take you to the menu also. Just change it to LTE/GSM/WCDMA and it will work on the 4G network (at least on 3 UK). LG UK support will not help as it came from HK. I still want to know if I can flash a Euro 32GB ROM to my phone to get it working natively.

make sure u have activate your LTE with your carrier,i you have done it,and still didnt have LTE, try the hidden menu,or try 4G switch frm playstore,rooting and deleting lteconfig from system/app would be your last option (i prefer this)

Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
thank you, this fixed my problem!
my lte/3g/2g settings was everytime reset to 2g/3g modus when i got back to settings. i deleted lte config.apk and the .odex file, rebooted and BAM! it keeps on lte/3g/2g

Solved
I had the same issue (no LTE option in Networks configuration menu), until today: My phone installed firmware V10i-HKG-XX, and now I have the "GSM/WCDMA/LTE auto" option in Preferred Network Mode.
Cheers

LG G3 Asian D855 no 4G
lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
Do the following -
1. From the dailer, type in 3845#*855#
2. Select LTE Only
3. Modem Setting
4. RAT Selection
5. GSM/WCDMA/LTE Auto
You should now receive 4G but everytime you reboot, you have to repeat this procedure

Enable bands

My friends has a g920p and wants to enable some bands so lte from telcel can work now he has only H+. Can that be done. I know that the s3 can with some magic. Thanks
Enviado desde mi SM-N920C mediante Tapatalk

Just put the phone on automatic in mobile network settings and set up two apns one for hspa and another for lte but make sure the lte apn has the bearer option set to lte the other just leave it how it is.

Didnt get it my friend.... here in mexico we use same apn for 3G or 4G LTE. We just need a sim v6.x and will get the lte bands.
Enviado desde mi SM-G920F mediante Tapatalk

george241312 said:
Just put the phone on automatic in mobile network settings and set up two apns one for hspa and another for lte but make sure the lte apn has the bearer option set to lte the other just leave it how it is.
Click to expand...
Click to collapse
Can you explain this a little more im using sprint on tmobile and only getting h+ also

bighleo114312 said:
My friends has a g920p and wants to enable some bands so lte from telcel can work now he has only H+. Can that be done. I know that the s3 can with some magic. Thanks
Enviado desde mi SM-N920C mediante Tapatalk
Click to expand...
Click to collapse
I know how to do this, but you would need to have the MSL number, if you don't then Google idoneapps, this guy sells an app that unlocks phone and extract that number.

So i need the msl number so how can i get it. Friends phone is already unlock.
Enviado desde mi SM-G920F mediante Tapatalk

MSL number is needed to edit data settings in sprint hidden menu. Install shortcut lite master and then search for PST, launch that application. Then look for ##Data#menu. You'll see there if your LTE is enabled or not. If it is not the only way to enable it is having MSL number.

Hidden Menu
there is no need for app for shortcut. Go to setting and go to Activate this device. Phone will load some info then look at top right for MORE. Click on it then click on PST. This will take to hidden menu,

To get LTE working all you have to do is create two separate APN's one with your regular APN settings and another that is identical APN settings but on the "Bearer" setting put it on LTE and you're good to go also make sure your phone is set to automatic and not gsm / umts
Sent from my SM-G920P using XDA Free mobile app

Also the phone will automatically switch to the apn that's needed. No need to keep switching apns
Sent from my SM-G920P using XDA Free mobile app

george241312 said:
Also the phone will automatically switch to the apn that's needed. No need to keep switching apns
Sent from my SM-G920P using XDA Free mobile app
Click to expand...
Click to collapse
what you stated here is correct. but have you tried it yourself?
I did, but there issue with send text messages. incoming sms works, outgoing - no.
there is no need to set to automatic. in service menu there is point where you can set preferred network type LTE_GSM_UMTS., but again, sms does not work.

fixmewireless said:
what you stated here is correct. but have you tried it yourself?
I did, but there issue with send text messages. incoming sms works, outgoing - no.
there is no need to set to automatic. in service menu there is point where you can set preferred network type LTE_GSM_UMTS., but again, sms does not work.
Click to expand...
Click to collapse
Works perfect for me I'm using T-Mobile it does not even switch to 3g when sending a msg idk why yours is not working I'm on oh1 stock no root maybe if you have root it can screw things up because different kernel?
Sent from my SM-G920P using XDA Free mobile app

george241312 said:
Works perfect for me I'm using T-Mobile it does not even switch to 3g when sending a msg idk why yours is not working I'm on oh1 stock no root maybe if you have root it can screw things up because different kernel?
Sent from my SM-G920P using XDA Free mobile app
Click to expand...
Click to collapse
no root. i`m on stock oh1. i`m on metro pcs.

fixmewireless said:
no root. i`m on stock oh1. i`m on metro pcs.
Click to expand...
Click to collapse
No clue maybe do ##72786# it will reset the phones modem settings and it will nag about activation again and relock the phone but I did it since I can unlock it myself again and never had an issue.
Weird thing is that my phone after unlock it wanted activation popup and then it actually went through and it went away with my T-Mobile sim.
Sent from my SM-G920P using XDA Free mobile app

sadfsadf
Ok found something out for some reason if you do not get LTE after setting it to Automatic switch to LTE/CDMA let it reboot and Reswitch it to Automatic reboot again then LTE+GSM_WCDMA should work.

Do you mean in service mode select cdma/lte then reboot and then go back to service mode n select gsm/wcdma/lte? Because ive been trying that fkr hkurs since reading your post lol. If this works your a beast . We need a gsm rom for this phone tho

george241312 said:
Ok found something out for some reason if you do not get LTE after setting it to Automatic switch to LTE/CDMA let it reboot and Reswitch it to Automatic reboot again then LTE+GSM_WCDMA should work.
Click to expand...
Click to collapse
George, do you have a legit way to get lte working on our device ? I haven't seen any proof from anyone claiming lte working on att or tmobile.

george241312 said:
Ok found something out for some reason if you do not get LTE after setting it to Automatic switch to LTE/CDMA let it reboot and Reswitch it to Automatic reboot again then LTE+GSM_WCDMA should work.
Click to expand...
Click to collapse
hmmm, been in the same boat with T-Mobile and a G920P, with only 3G being picked up but after switching it to automatic, it picked up LTE! Thanks for the poiter. However, have you been able to get MMS enabled or working as I seem to have issues with that and not sure why it isn't downloading the messages. Not sure if I need to give T-Mo a call and get something enabled or what. BTW, how did you manage to make that annoying activation screen go away as the moment I got it unlocked and popped in my sim card, it can't ever activate, but works fine though

any one succeeded in unlocking bands
Has anyone had any success enabling additional bands on a Sprint S6? Basically the bands it comes unlocked with are useless for Europe 4g and would love to unlock bands 3, 7, 20, 28, however 3 & 7 would be enough.

jeff83nz said:
Has anyone had any success enabling additional bands on a Sprint S6? Basically the bands it comes unlocked with are useless for Europe 4g and would love to unlock bands 3, 7, 20, 28, however 3 & 7 would be enough.
Click to expand...
Click to collapse
Same here. seems to me Samsung does not give us open source to edit Exynos settings. As I'm aware, our phones' hardware is capable to get those bands

LG G4 H818N, can't get LTE working

Hi, I have a LG G4 H818N LTE model with dual sim running firmware v10c.
According to the mobile carrier, they support 900MHz and 2100MHz, yet I am unable to obtain 4G connection on my phone. I have enabled the option in the sim settings for "4G/3G/2G" on the SIM that I want to use for data and set that sim as the sim to use for data connection but it still only connects at H+.
Perhaps the carrier is using Cat 6 LTE. Is there a way to enable Cat 6 LTE on the H818N?
Is there a way that I can test LTE connectivity on the phone or are there perhaps any settings that I may have missed to force LTE connection?
I previously had an LG G3 D855 which connected to 4G without any issues.
Is there a file where I can manually edit the 4G bands for my phone?
Finally, slightly off topic. Can anyone explain to me what a KDZ file is?
Assistance would be highly appreciated. Thanks.

mine has a working LTE on both sim 1 and sim 2 but not simultaneously. i found out that the apn is alittle bit buggy. check your apn and set the primary.

Thanks, would you mind walking me through the steps that you followed please?

enter 277634#*# in dialer and go to field test > modem settings > lte band selection

sampathkumar2811 said:
enter 277634#*# in dialer and go to field test > modem settings > lte band selection
Click to expand...
Click to collapse
on three UK i could only get H+, but after using your instructions and choosing band 3, i now get lte, many thanks! Wiki has all the bands for countries/operators

reg66 said:
on three UK i could only get H+, but after using your instructions and choosing band 3, i now get lte, many thanks! Wiki has all the bands for countries/operators
Click to expand...
Click to collapse
Your welcome

sampathkumar2811 said:
Your welcome
Click to expand...
Click to collapse
hmm, just went to my dads (no lte there) and came home again (lte here) and it would not turn back to lte, had to use the info you gave again. seems it's not sticking. any suggestions?

Hi all, thank you so much for the answer. I'm actually having the same problem with my LG G4 H818N. I'd be grateful if anyone can advise what kind of setting I should choose for my phone to work on Vodafone UK 4G network. I'm so frustrated to pay 4G plan but only get up to H+

Wannato said:
Hi all, thank you so much for the answer. I'm actually having the same problem with my LG G4 H818N. I'd be grateful if anyone can advise what kind of setting I should choose for my phone to work on Vodafone UK 4G network. I'm so frustrated to pay 4G plan but only get up to H+
Click to expand...
Click to collapse
Can't provide link as using xda app, but Google 'wiki Europe lte bands' and it should come up with what you want. I'm on three UK and there was two different bands to try, turned out to be band 3 for me. Hope this helps

reg66 said:
Can't provide link as using xda app, but Google 'wiki Europe lte bands' and it should come up with what you want. I'm on three UK and there was two different bands to try, turned out to be band 3 for me. Hope this helps
Click to expand...
Click to collapse
Sorry for my late reply! I did Google however, Vodafone is on Band 20. When I choose this option, it said Fail. Is anyone know why?

Wannato said:
Sorry for my late reply! I did Google however, Vodafone is on Band 20. When I choose this option, it said Fail. Is anyone know why?
Click to expand...
Click to collapse
switch 2nd sim to gsm n try again
---------- Post added at 01:10 AM ---------- Previous post was at 01:09 AM ----------
reg66 said:
hmm, just went to my dads (no lte there) and came home again (lte here) and it would not turn back to lte, had to use the info you gave again. seems it's not sticking. any suggestions?
Click to expand...
Click to collapse
im not sure of setting up it permanently.

sampathkumar2811 said:
switch 2nd sim to gsm n try again
Thanks. I just tried in the FieldTest -> Network Mode-> set SIM 2 to GSM 850 and try Band 20 again under the LTE Band Selection, but still Fail.
Are these steps correct?
Click to expand...
Click to collapse

Wannato said:
sampathkumar2811 said:
switch 2nd sim to gsm n try again
Thanks. I just tried in the FieldTest -> Network Mode-> set SIM 2 to GSM 850 and try Band 20 again under the LTE Band Selection, but still Fail.
Are these steps correct?
Click to expand...
Click to collapse
try changing the 2nd sim to gsm from settings other than hidden mode
Click to expand...
Click to collapse

sampathkumar2811 said:
Wannato said:
try changing the 2nd sim to gsm from settings other than hidden mode
Click to expand...
Click to collapse
However, I only have 1 SIM inserted at the moment. In order to change to Band 20, does it need to have 2 SIMs inserted and follow your instruction?
Click to expand...
Click to collapse

I'm having a similar issue with my 818N. I can't get 4G/LTE.
Has anyone worked out why or how to fix it?

The hidden menus don't allow me to select lte bands they all just say fail after I select them.
In the RAT menu I am unable to select LTE only, it also fails.
It's as if LTE is disabled?

I tried installing 818P software into the phone which worked fine however I still couldn't connect to 4G.
I give up

It turns out that my phone was faulty and I've returned it to HK for a full refund. DWI were good to deal with and were fast to refund me my money once they confirmed that it was DOA.

No mobile data on LTE

Hi,
I have a problem with my LG G3. I can't connect to mobile data, while network is connected to LTE. On LOS 14.1 everything is working fine. But on any stock ROM (v21a, v21c, v30b, v30d, v30n) phone is connected to LTE, but mobile data doesn't work. On CDMA only I have mobile data through 3G+ or H+. Reflashing through LG UP or flashtool doesn't help. Any suggestions? On custom ROMs LTE is working flawlessly, so it is clearly software issue.

Also enabling or disabling fast dormancy didn't help.

I found that the Access Point Name (APN) defined for my carrier on the phone didnt work. I had to manually define it - after which mobile data worked.

The simple answer is - some or all LTE bands are disabled. You have to enable it. To enable it:
1) go to play store and download "Network signal guru".
2) open the app with an active internet connection.
3)tap on the 3 dots on the top right corner.
4) tap on band locking.
5) tap on lte.
6) select all lte bands. Done.
No reboot required. If the network bars still don't show up, then reboot your phone.
Also make sure that you have the proper APN.

I have the same problem. I want to fix it without root.

Cienky02 said:
I have the same problem. I want to fix it without root.
Click to expand...
Click to collapse
All LG phones come with a hidden menu. To enable lte bands there. If it still doesn't work, try resetting network settings.

I bought an LG G3 about 6 months ago. Everything was great and everything was working until I rooted and changed ROMs to Fulmics ROM 5.6. I got back to stock (30b Global), because I didn't like it and I discovered that my LTE isn't working. Like I mean GSM/WCDMA provides me Internet but only (H and 3G), but when I switch to GSM/WCDMA/LTE auto it doesn't even try to connect to the internet. I flashed cyanogen 13, and other AOSP roms and guess what?! I had LTE. So then I thought, that if i have it on custom roms, i need to have it on the stock one. So I flashed about 5 versions of the stock rom and still no luck.
I still have guarantee, but will they do something else then reflashing the stock?
I've also messed about in the Hidden Menu with those fixes that I found on XDA Forums, but still.. No luck at all.
I really want to have fast internet (My carrier supports LTE, and on the box from the phone it has "LTE" on it. Is it possible to be a hardware problem or software? It's soo slow that I can't even upload this.
Also is there any way of fixing this issue without Root?

farhanshaikh671 said:
The simple answer is - some or all LTE bands are disabled. You have to enable it. To enable it:
1) go to play store and download "Network signal guru".
2) open the app with an active internet connection.
3)tap on the 3 dots on the top right corner.
4) tap on band locking.
5) tap on lte.
6) select all lte bands. Done.
No reboot required. If the network bars still don't show up, then reboot your phone.
Also make sure that you have the proper APN.
Click to expand...
Click to collapse
Network Signal Guru require root, but I don't want to root How to fix it through hidden menu?

Magnum44pl said:
Network Signal Guru require root, but I don't want to root How to fix it through hidden menu?
Click to expand...
Click to collapse
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
Cienky02 said:
I bought an LG G3 about 6 months ago. Everything was great and everything was working until I rooted and changed ROMs to Fulmics ROM 5.6. I got back to stock (30b Global), because I didn't like it and I discovered that my LTE isn't working. Like I mean GSM/WCDMA provides me Internet but only (H and 3G), but when I switch to GSM/WCDMA/LTE auto it doesn't even try to connect to the internet. I flashed cyanogen 13, and other AOSP roms and guess what?! I had LTE. So then I thought, that if i have it on custom roms, i need to have it on the stock one. So I flashed about 5 versions of the stock rom and still no luck.
I still have guarantee, but will they do something else then reflashing the stock?
I've also messed about in the Hidden Menu with those fixes that I found on XDA Forums, but still.. No luck at all.
I really want to have fast internet (My carrier supports LTE, and on the box from the phone it has "LTE" on it. Is it possible to be a hardware problem or software? It's soo slow that I can't even upload this.
Also is there any way of fixing this issue without Root?
Click to expand...
Click to collapse
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.

farhanshaikh671 said:
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.
Click to expand...
Click to collapse
I know how to acces hidden menu. Which option in it I have to change?

farhanshaikh671 said:
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.
Click to expand...
Click to collapse
I tells me that i need to root. I dont want to do that, any way to do it without?

On Fulmics there is also no LTE. LTE works only on AOSP/CM ROMs. What the hell?

Magnum44pl said:
I know how to acces hidden menu. Which option in it I have to change?
Click to expand...
Click to collapse
I'm assuming that you have full network bars and you only cannot access the internet.
Accessing hidden menu comes in use ONLY when no network bars are appearing after changing from GSM/HSPA to LTE and it also requires root.
If you ONLY cannot access the internet but have full network bars after changing to LTE, you have to change the APN in settings. APNs are carried specific, so they differ from carrier to carrier. APNs act like a gateway between the phone and the internet. So, APNs are necessary in order to use the internet.
To get your APN, open Google and search "apn settings for [carrier name] 4g"
---------- Post added at 03:26 PM ---------- Previous post was at 03:20 PM ----------
Magnum44pl said:
On Fulmics there is also no LTE. LTE works only on AOSP/CM ROMs. What the hell?
Click to expand...
Click to collapse
If you're already rooted, use the app 'network signal guru'. Download the app, open the app, tap on the 3 dots on the top right corner of the screen. Tap on band selection. Tap on lte. Enable all lte bands. Done.

farhanshaikh671 said:
I'm assuming that you have full network bars and you only cannot access the internet.
Accessing hidden menu comes in use ONLY when no network bars are appearing after changing from GSM/HSPA to LTE and it also requires root.
If you ONLY cannot access the internet but have full network bars after changing to LTE, you have to change the APN in settings. APNs are carried specific, so they differ from carrier to carrier. APNs act like a gateway between the phone and the internet. So, APNs are necessary in order to use the internet.
To get your APN, open Google and search "apn settings for [carrier name] 4g"
---------- Post added at 03:26 PM ---------- Previous post was at 03:20 PM ----------
If you're already rooted, use the app 'network signal guru'. Download the app, open the app, tap on the 3 dots on the top right corner of the screen. Tap on band selection. Tap on lte. Enable all lte bands. Done.
Click to expand...
Click to collapse
Changing APN's and even after rooting using this app didn't help. I am sending phone to repair, because it's still on guarantee.

Magnum44pl said:
Changing APN's and even after rooting using this app didn't help. I am sending phone to repair, because it's still on guarantee.
Click to expand...
Click to collapse
First try claiming a replacement for your sim card. If it still doesn't work, ask for a replacement for ur phone itself.

With new SIM card the problem still exists.