Database Users

[Q] Updated FW to JM5, now phone is trying to access WCDMA

First off I've tried searching for a similar topic and couldn't find anything.
So here's my issue. I updated my SGS which I bought from a local O2 store here. Checked that is was indeed unlocked and went ahead to follow the instructions that can be seen here in the forums.
After installation, the language was set to an Eastern European locale, which conveniently was easy to change back to English.
I could not connect to any network, so did all the app installations via WiFi. It wasn't until early this morning when going to work that I noticed that I didn't have any DATA going through.
Checking on the settings, I now have the option to connect to CDMA networks, instead of the option to disable 3G (Only connect to 2G networks).
What do I do to get that option back?
Thanks in advance for your assistance.

You need to manually install your phone network details or AP (Access Point) details.
Firstly check you have any details entered.
Settings > Wireles and network > Mobile networks > Access Point Names
If you don't have any details in here then you need to find the information and put them manually in.
Other then this you can check your Network Mode the next entry below Access Point Names and select the mode you wish.
Mine is GSM/WCDMA auto.
Wish you luck with it.

That's the thing, there are APN's on there and all. It's just that the setting for 3G had now changed to CDMA. Is there a way to just flash the specific CSC and not affect the PDA & PHONE?

The.Opethian said:
That's the thing, there are APN's on there and all. It's just that the setting for 3G had now changed to CDMA. Is there a way to just flash the specific CSC and not affect the PDA & PHONE?
Click to expand...
Click to collapse
PDA must always be flashed. THe other two you can add if required.
WCDMA is the same thing just make the selection you want. No need to flash a different CSC. I'm using JM1 at present and it's WCDMA as it's from Europe but it doesn't effect the phones capability. It's just a name.

Thanks for the reply. So what you're saying is, even if it is saying WCDMA, it WILL connect to HSDPA? Flashing my phone now back to JM5. All other FW's I've tried just show WCDMA instead of 3G.

Eventually settled for JFF and 2G option is back. Now I have the problem of the APN's working. Off to weed through these forums again.
Different question, same problem unresolved. So my original problem is that I seem to have lost all data connectivity (apart from WiFi) after the very first FLASH. OH well. Thanks for your assistance Ancient_One.

WCDMA is not CDMA. It might be confusing a bit, but it's actually two different things. WCDMA is basically just another name for 3G.
(Well, it's a bit more complicated than that, but for the sake of simplicity, let's just leave it at that.)

Yes, WCDMA is 3G. It's not CDMA as used by Verizon and Sprint in the US (they just share some of the radio-level technology).

Thanks for clarifying the bits regarding WCDMA. My how things have changed. Anyway, I'm going back to JM5 and am hoping to get internet up and running. It is so annoying to not have everything working as they should, even after the APN's been added and all.
Much appreciated guys.

[Q] How to get 4G/LTE on N9005

Hi,
I can't seem to figure this out, I have the N9005 and currently reside in the US. Anyone knows how to turn on the 4G/LTE on the phone? My provider has 4g/LTE here and want to be able to use 4G/LTE instead of H/H+ that shows on the phone.
Would really appreciate any help. :crying:
Thanks!

mrpug said:
Hi,
I can't seem to figure this out, I have the N9005 and currently reside in the US. Anyone knows how to turn on the 4G/LTE on the phone? My provider has 4g/LTE here and want to be able to use 4G/LTE instead of H/H+ that shows on the phone.
Would really appreciate any help. :crying:
Thanks!
Click to expand...
Click to collapse
Enter *#2263# and select LTE Mode.

Check your APN settings in more networks/mobile network/APN. Make sure your on the providers LTE APN.

mrpug said:
Hi,
I can't seem to figure this out, I have the N9005 and currently reside in the US. Anyone knows how to turn on the 4G/LTE on the phone? My provider has 4g/LTE here and want to be able to use 4G/LTE instead of H/H+ that shows on the phone.
Would really appreciate any help. :crying:
Thanks!
Click to expand...
Click to collapse
N9005 does not support many of the LTE frequencies in US.

mrpug said:
Hi,
I can't seem to figure this out, I have the N9005 and currently reside in the US. Anyone knows how to turn on the 4G/LTE on the phone? My provider has 4g/LTE here and want to be able to use 4G/LTE instead of H/H+ that shows on the phone.
Would really appreciate any help. :crying:
Thanks!
Click to expand...
Click to collapse
1. Change with a root explorer of your choice (e.g. Root Explorer, Solid Explorer or EF File Explorer) the value“false”*in file*persist.radio.lteon*into*“true”*by way of build-in text editor of the root explorer. The file is located in root/data/property. Be sure permissions of*persist.radio.lteon*are set to rw, after altering the file save the file and make it read-only. Reboot your phone, now you will see and be able to pick the option* “LTE/WCDMA/GSM *(auto connect)” in Network Mode menu.*Important: before altering ANY file on your phone be sure you have a copy of the original, unaltered file!!!*Advantage of this solution: even after a phone reboot the option* “LTE/WCDMA/GSM *(auto connect)” will remain visible/activated.
2. When you are afraid or not tech-savvy enough to alter phone files you can download*“Advanced Signal Status” on Google Play. Start the app, go into*Advanced Info*located on bottom of the app and subsequent choose *LTE/GSM/CDMA auto (PRL) in the first sub-menu of Advanced Info. In phone Network Mode menu option* “LTE/WCDMA/GSM *(auto connect)” will still not be visible but nevertheless you will be able to use LTE/4G. Disadvantage of this solution will be that after every phone reboot you have to start “Advanced Signal Status app” and reactivate LTE/GSM/CDMA option.
Please remember that LTE/4G will only work in area’s with LTE and your phone data-plan includes the use of LTE. Good luck and have fun!
Source: http://smokeys.wordpress.com/2014/04/06/how-to-enable-lte4g-on-samsung-galaxy-note-3-sm-n9005/
Sent from Galaxy Note 3 SM-N9005

"Enter *#2263# and select LTE Mode."
I tried this and when I select LTE, I end up having no service.

xclub_101 said:
N9005 does not support many of the LTE frequencies in US.
Click to expand...
Click to collapse
Yes I know it doesnt support many of the LTE frequencies but I thought there was a way to enable that, but I'm not sure how.
thahim said:
1. Change with a root explorer of your choice (e.g. Root Explorer, Solid Explorer or EF File Explorer) the value“false”*in file*persist.radio.lteon*into*“true”*by way of build-in text editor of the root explorer. The file is located in root/data/property. Be sure permissions of*persist.radio.lteon*are set to rw, after altering the file save the file and make it read-only. Reboot your phone, now you will see and be able to pick the option* “LTE/WCDMA/GSM *(auto connect)” in Network Mode menu.*Important: before altering ANY file on your phone be sure you have a copy of the original, unaltered file!!!*Advantage of this solution: even after a phone reboot the option* “LTE/WCDMA/GSM *(auto connect)” will remain visible/activated.
2. When you are afraid or not tech-savvy enough to alter phone files you can download*“Advanced Signal Status” on Google Play. Start the app, go into*Advanced Info*located on bottom of the app and subsequent choose *LTE/GSM/CDMA auto (PRL) in the first sub-menu of Advanced Info. In phone Network Mode menu option* “LTE/WCDMA/GSM *(auto connect)” will still not be visible but nevertheless you will be able to use LTE/4G. Disadvantage of this solution will be that after every phone reboot you have to start “Advanced Signal Status app” and reactivate LTE/GSM/CDMA option.
Please remember that LTE/4G will only work in area’s with LTE and your phone data-plan includes the use of LTE. Good luck and have fun!
Source: http://smokeys.wordpress.com/2014/04/06/how-to-enable-lte4g-on-samsung-galaxy-note-3-sm-n9005/
Sent from Galaxy Note 3 SM-N9005
Click to expand...
Click to collapse
I tried this but it doesnt seem to work, My phone already has the option LTE/WCDMA/GSM, so the wouldnt really apply to it.

mrpug said:
"Enter *#2263# and select LTE Mode."
I tried this and when I select LTE, I end up having no service.
Click to expand...
Click to collapse
Try this: http://forum.xda-developers.com/showpost.php?p=56086191&postcount=4

☆Jamie☆ said:
Check your APN settings in more networks/mobile network/APN. Make sure your on the providers LTE APN.
Click to expand...
Click to collapse
how would you know if your on the LTE APN? mine currently just say T-mobile US

mrpug said:
how would you know if your on the LTE APN? mine currently just say T-mobile US
Click to expand...
Click to collapse
Nope, don't care about APN at this step.
APN settings does not affect at this step.

mrpug said:
Yes I know it doesnt support many of the LTE frequencies but I thought there was a way to enable that, but I'm not sure how.
I tried this but it doesnt seem to work, My phone already has the option LTE/WCDMA/GSM, so the wouldnt really apply to it.
Click to expand...
Click to collapse
I have n9005 note 3 I had to do this to get lte option.
If you have it goto network settings and change mode to LTE.
Sent from Galaxy Note 3 SM-N9005

So you have LTE mode selected in settings, but it still doesn't go past H+, and you're sure you're in a 4G area?
Firmwares and secret codes aren't going to solve this.
Your provider likely uses a different frequency than the phone supports.
You could simply look up your provider frequencies and check them against the phone specs. If they don't match, game over.
Sent from my SM-N9005 using Tapatalk 2

ShadowLea said:
So you have LTE mode selected in settings, but it still doesn't go past H+, and you're sure you're in a 4G area?
Firmwares and secret codes aren't going to solve this.
Your provider likely uses a different frequency than the phone supports.
You could simply look up your provider frequencies and check them against the phone specs. If they don't match, game over.
Sent from my SM-N9005 using Tapatalk 2
Click to expand...
Click to collapse
Well I have the n9005 and currently is on the T-mobile US carrier. I thought n9005 has one frequency that is the same as the T-mobile 4G/LTE unless im mistaken?

mrpug said:
Well I have the n9005 and currently is on the T-mobile US carrier. I thought n9005 has one frequency that is the same as the T-mobile 4G/LTE unless im mistaken?
Click to expand...
Click to collapse
The LTE frequencies for the N9005 are 800/850/900/1800/2100/2600.
T-Mobile US uses 700/1700/1900/(2100)
The 2100 overlaps, but unfortunately T-Mobile US only uses it as a support network. Meaning it's not active by default. 1900Mhz is the main network.

mrpug said:
Well I have the n9005 and currently is on the T-mobile US carrier. I thought n9005 has one frequency that is the same as the T-mobile 4G/LTE unless im mistaken?
Click to expand...
Click to collapse
Follow this topic to add required bands to your phone.

Wait a moment is your SIM is LTE/4G supported?

Some providers only allow you to connect to the 4G, if you have such contract. For example, I am customer of Tele2 in Estonia and I can not use 4G either, because I currently have such contract, which only permits me to use speeds upto HSPA+.

meawww said:
Wait a moment is your SIM is LTE/4G supported?
Click to expand...
Click to collapse
yes my sim is 4G/LTE supported

Someguyfromhell said:
Some providers only allow you to connect to the 4G, if you have such contract. For example, I am customer of Tele2 in Estonia and I can not use 4G either, because I currently have such contract, which only permits me to use speeds upto HSPA+.
Click to expand...
Click to collapse
I tried using my sim card on a T-mobile phone and was able to get 4G/LTE at no problem

vndnguyen said:
Follow this topic to add required bands to your phone.
Click to expand...
Click to collapse
Thanks for link, I tried doing it but something is not working, I'm not sure if its cause I need to change the modem or maybe the rom is not working or maybe something else.

UMI Super 3G instead of 4G

Hi,
did anyone using Umi Super have any problems with using 4G at 800MHz? Im on giffgaff and even though Umi Super is supposed to work at 4G under 800MHz (thats what the specification states) i cant manage to make it work. I have perfect 4G coverage, 4G sim, 4G tariff, even gave my sim to a friend with S7 edge and it worked on his phone. Maybe new update will fix that? I tried with different sim from different operator (LYCA) and it works but 4G in LYCA is at 2100MHz so I didnt really check the 800. I tried everything and still nothing. Did anyone have similar problem?

I actually bought 2 phones of the same model so I decided to check if 4G worked on the other one and as I put the sim card in I just remembered something and realized same thing happened with my phone. When I put the SIM card in for the first time it DID automatically go to 4G, ok, when I looked for available networks it found O2 4G, granted BUT!!! when i got to "preferred network type" there is only 3G to pick, and THE MOMENT I PICK IT there is not possible to go back. Every network I find from that moment is only 2G or 3G. Now i reckon that a software problem right? See attachments

It is a software bug and I think I sort it out after flashing the phone. For now I sorted out the problem using Networks app by Philipp Mangalov and switching network to LTE/GSM auto

Well it seems the data part of the UMI SUPER is not so super, is it? I face a similar problem but worse. The 4G band of 800 doesn't work(despite being advertized by UMI as supported) but luckily the band of 2100 works without any issues. The problem comes when I'm out of 2100 band coverage and phone must switch to 3G - then I lose all data connectivity completely. So basically whenever I'm out of 4G 2100 coverage(which is often) I am without any connectivity! Anyone facing the same? Solution?

Indopilot said:
Well it seems the data part of the UMI SUPER is not so super, is it? I face a similar problem but worse. The 4G band of 800 doesn't work(despite being advertized by UMI as supported) but luckily the band of 2100 works without any issues. The problem comes when I'm out of 2100 band coverage and phone must switch to 3G - then I lose all data connectivity completely. So basically whenever I'm out of 4G 2100 coverage(which is often) I am without any connectivity! Anyone facing the same? Solution?
Click to expand...
Click to collapse
I only have 3G and the phone shows that I have internet, but when I try to actually use the data it just says no connection on apps.

zbysogi said:
Hi,
did anyone using Umi Super have any problems with using 4G at 800MHz? Im on giffgaff and even though Umi Super is supposed to work at 4G under 800MHz (thats what the specification states) i cant manage to make it work. I have perfect 4G coverage, 4G sim, 4G tariff, even gave my sim to a friend with S7 edge and it worked on his phone. Maybe new update will fix that? I tried with different sim from different operator (LYCA) and it works but 4G in LYCA is at 2100MHz so I didnt really check the 800. I tried everything and still nothing. Did anyone have similar problem?
Click to expand...
Click to collapse
I don't have this issue at all. My UMi Super connects perfectly to my 4g network under 800MHz without an issue here in Uganda. You can install the MTK Engineering app from the play store and check the band compatibility on ur device and you can also set the mode using the same app under android settings.
You could also try updating to the latest OTA which is 20160810 or the one before it by downloading the files from forum post here and saving them to ur phone and updating manually if you don't have the current OTA

sachak said:
I don't have this issue at all. My UMi Super connects perfectly to my 4g network under 800MHz without an issue here in Uganda. You can install the MTK Engineering app from the play store and check the band compatibility on ur device and you can also set the mode using the same app under android settings.
You could also try updating to the latest OTA which is 20160810 or the one before it by downloading the files from forum post here and saving them to ur phone and updating manually if you don't have the current OTA
Click to expand...
Click to collapse
GravityBox is a perfect solution for this problem. You can set up an icon in notification bar allowing You to toggle between 2G/3G/4G

zbysogi said:
I actually bought 2 phones of the same model so I decided to check if 4G worked on the other one and as I put the sim card in I just remembered something and realized same thing happened with my phone. When I put the SIM card in for the first time it DID automatically go to 4G, ok, when I looked for available networks it found O2 4G, granted BUT!!! when i got to "preferred network type" there is only 3G to pick, and THE MOMENT I PICK IT there is not possible to go back. Every network I find from that moment is only 2G or 3G. Now i reckon that a software problem right? See attachments
Click to expand...
Click to collapse
same problem

This is indeed a software issue, one I have come accross many times - using an app to toggle between the service types is the best workaround!
There are many apps that work to resolve this, some great ones have already been mentioned.

TerryWebbs said:
This is indeed a software issue, one I have come accross many times - using an app to toggle between the service types is the best workaround!
There are many apps that work to resolve this, some great ones have already been mentioned.
Click to expand...
Click to collapse
Could you tell me some app that resolve this?
Thanks

I've got a UMI Super and had this issue as well:
try this app:
Network by Philipp Mangelow
https://play.google.com/store/apps/details?id=de.mangelow.network

4g Umi Super on Giff Gaff
You need Giff Gaff settings in access point name. If you try and use O2 4g it doesn't work even though Giff Gaff uses O2 network. Settings are really easy to input but MUST be Giff Gaff not O2.
zbysogi said:
I actually bought 2 phones of the same model so I decided to check if 4G worked on the other one and as I put the sim card in I just remembered something and realized same thing happened with my phone. When I put the SIM card in for the first time it DID automatically go to 4G, ok, when I looked for available networks it found O2 4G, granted BUT!!! when i got to "preferred network type" there is only 3G to pick, and THE MOMENT I PICK IT there is not possible to go back. Every network I find from that moment is only 2G or 3G. Now i reckon that a software problem right? See attachments
Click to expand...
Click to collapse

There is a fix on rooted phones by using GravityBox and switching between 2G/3G/4G
Thread can be closed.

4G on a Umi Super on GiffGaff.
zbysogi said:
There is a fix on rooted phones by using GravityBox and switching between 2G/3G/4G
Thread can be closed.
Click to expand...
Click to collapse
All that's needed is GiffGaff settings inputing manually. Very easy to do. O2 settings that the phone recognises when a GiffGaff sim is used WILL NOT WORK. The Network is O2 but the APN settings for GiffGaff are totally different.
All you guys that think you know what you're doing obviously don't.
No need to Root or use GravityBox or any other App.

Maz Jones said:
All that's needed is GiffGaff settings inputing manually. Very easy to do. O2 settings that the phone recognises when a GiffGaff sim is used WILL NOT WORK. The Network is O2 but the APN settings for GiffGaff are totally different.
All you guys that think you know what you're doing obviously don't.
No need to Root or use GravityBox or any other App.
Click to expand...
Click to collapse
Well said. I just shake my head in despair when I see how totally clueless people try to be teachers and Internet gurus with very limited knowledge about the task at hand. These comments should come with warning stickers.

For those who want to be able to switch between 3G/4G and LTE only, use this nifty little APK that I've attached below. It will allow you to enter engineer mode without using the dial code.

Hi
This is a bug implemented in Android 7.0.
I had the same.
1 Just force in your parameters 2G/3G networks
2 wait for network authentification (no more excalamtion mark)
3 go back to 4G
Every thing will be OK to next switch off or plane mode.
Rgds,

LTE band 7 (2600) not working
I recently received my new Umi Super and updated to the last firmware V7.01_20170413, everything works fine except for the 4G. I live in an area where band 7 (2600) is available but the phone can't connect to it. Of course, my preferred network type is set to 4G/3G/2G (auto).
I read a lot about the issue on the internet but I can't find a solution.
I checked the BandMode on the phone by dialing *#*#3646633#*#*, band 7 is included and checked. However, when I tried to remove the other LTE bands and keep only band 7, I got a message explaining that the list can't be empty ("Failed. The band is changed from not null to null, it is illegal"), though the list was not completely empty because band 7 was still selected.
Also, I tried to change the radio band by dialing *#*#4636#*#*, but process com.android.phone stopped working when I pressed "select radio band", even after I cleared cache in phone and sim apps.
Can anyone tell me how to fix the problem and get connected to 4G.
BTW, Network by Philipp Mangelow is not available anymore. Switching between 3G/2G and 4G/3G/2G settings doesn't fix the issue. I tried the giffgaff settings, but the APN gets deleted as soon as I try to save it.
Thanks

bemo00 said:
I recently received my new Umi Super and updated to the last firmware V7.01_20170413, everything works fine except for the 4G. I live in an area where band 7 (2600) is available but the phone can't connect to it. Of course, my preferred network type is set to 4G/3G/2G (auto).
I read a lot about the issue on the internet but I can't find a solution.
I checked the BandMode on the phone by dialing *#*#3646633#*#*, band 7 is included and checked. However, when I tried to remove the other LTE bands and keep only band 7, I got a message explaining that the list can't be empty ("Failed. The band is changed from not null to null, it is illegal"), though the list was not completely empty because band 7 was still selected.
Also, I tried to change the radio band by dialing *#*#4636#*#*, but process com.android.phone stopped working when I pressed "select radio band", even after I cleared cache in phone and sim apps.
Can anyone tell me how to fix the problem and get connected to 4G.
BTW, Network by Philipp Mangelow is not available anymore. Switching between 3G/2G and 4G/3G/2G settings doesn't fix the issue. I tried the giffgaff settings, but the APN gets deleted as soon as I try to save it.
Thanks
Click to expand...
Click to collapse
You may try to force 3G and then try to force 4G
You may try to user another IMEI number from a UMI device with 2600 support (of course backup/write down the original one before just in case)
http://www.ucc.co.ug/data/imei/2
After the update to Nougat 7.x how long does it take to do a full recharge?
Do you still have fast charge feature (< 1 hour) or do you lost it like all users reported so far?
What about your GPS? Do you have a fast fix after cleaning history and is it reliable (not losing signal often?).

SimurghXDA said:
You may try to force 3G and then try to force 4G
You may try to user another IMEI number from a UMI device with 2600 support (of course backup/write down the original one before just in case)
http://www.ucc.co.ug/data/imei/2
After the update to Nougat 7.x how long does it take to do a full recharge?
Do you still have fast charge feature (< 1 hour) or do you lost it like all users reported so far?
What about your GPS? Do you have a fast fix after cleaning history and is it reliable (not losing signal often?).
Click to expand...
Click to collapse
Is it safe to change the IMEI number? and where can I find another number for a UMI device?
GPS is working fine, it fixes pretty fast, but I'm not sure about interruption in the signal because I haven't used it enough yet

Can´t recive calls with 4G signal

I'm new in this forum, but I recently bought a Moto X Pure edition and everything is great except for the simple task of recive calls, I have tried everything that comes to my mind eaven make a hard reset, but I can't get the cel take a call, are sended right to the voicemail the only "solution" is work with 3G but the internet speed is too slow.
There is a way to fix it or should I think about change the phone?

RodoRock1 said:
I'm new in this forum, but I recently bought a Moto X Pure edition and everything is great except for the simple task of recive calls, I have tried everything that comes to my mind eaven make a hard reset, but I can't get the cel take a call, are sended right to the voicemail the only "solution" is work with 3G but the internet speed is too slow.
There is a way to fix it or should I think about change the phone?
Click to expand...
Click to collapse
Check your APN settings and ensure they Match to what your provider says.
Sent from my XT1575 using Tapatalk

Cdub1976 said:
Check your APN settings and ensure they Match to what your provider says.
Sent from my XT1575 using Tapatalk
Click to expand...
Click to collapse
I also do that and everyting is matching ?

Stock ROM?
Sent from my XT1575 using Tapatalk

APN has nothing to do with voice calls, or SMS...
@RodoRock1 What carrier/SIM, model, and region?

acejavelin said:
APN has nothing to do with voice calls, or SMS...
@RodoRock1 What carrier/SIM, model, and region?
Click to expand...
Click to collapse
Movistar lte México... I have been making reserch and is a problem with the change between 3g and 4g. The phone should change from LTE to H to be able to recibe the call, but its not doing it, I dont know why..

RodoRock1 said:
Movistar lte México... I have been making reserch and is a problem with the change between 3g and 4g. The phone should change from LTE to H to be able to recibe the call, but its not doing it, I dont know why..
Click to expand...
Click to collapse
That is the correct behavior... if you dial *#*#4636#*#* and go to Phone info and scroll down, is your "Set preferred network type" set to "LTE/GSM/CDMA auto (PRL)"?

acejavelin said:
That is the correct behavior... if you dial *#*#4636#*#* and go to Phone info and scroll down, is your "Set preferred network type" set to "LTE/GSM/CDMA auto (PRL)"?
Click to expand...
Click to collapse
The configuración is there ? any idea?

RodoRock1 said:
The configuración is there any idea?
Click to expand...
Click to collapse
Reboot into Safe Mode and try it... Press the power button until the Power Offn button appears, then long press the Power Off button and in the "Reboot to safe mode" screen, select OK. Once it is rebooted into safe mode, test again.
Are you stock, rooted, or running a custom rom?

acejavelin said:
Reboot into Safe Mode and try it... Press the power button until the Power Offn button appears, then long press the Power Off button and in the "Reboot to safe mode" screen, select OK. Once it is rebooted into safe mode, test again.
Are you stock, rooted, or running a custom rom?
Click to expand...
Click to collapse
I'm in safe mode still not working. I have stock and unrooted

RodoRock1 said:
I'm in safe mode still not working. I have stock and unrooted
Click to expand...
Click to collapse
Hmm... Odd... I haven't heard of this issue on the X. Any chance of trying with another SIM, say borrow one from a friend long enough to test, or getting a replacement?
Otherwise, factory reset and test again.
Sent from my Motorola XT1575 using XDA Labs

acejavelin said:
Hmm... Odd... I haven't heard of this issue on the X. Any chance of trying with another SIM, say borrow one from a friend long enough to test, or getting a replacement?
Otherwise, factory reset and test again.
Sent from my Motorola XT1575 using XDA Labs
Click to expand...
Click to collapse
I already done that the factory reset do not work, and if I change the sim to my old celphone (moto X 1) works perfecto, when I use a sim fom Telcel ( another service provider) the phone works normal, its weird because should be the same Ting, the only diference that I see is that the signal bar change from LTE to 4G (I touthg that was the same) with the Telcel provider.

RodoRock1 said:
I already done that the factory reset do not work, and if I change the sim to my old celphone (moto X 1) works perfecto, when I use a sim fom Telcel ( another service provider) the phone works normal, its weird because should be the same Ting, the only diference that I see is that the signal bar change from LTE to 4G (I touthg that was the same) with the Telcel provider.
Click to expand...
Click to collapse
The Style will show 4G instead of LTE... It's normal I believe. You can verify with LTE Discovery or Network Signal Info app, but I don't think it's relevant. Sorry, but I'm running out of ideas.
What version Android, firmware, and radios (Build number and baseband info)?
Sent from my Motorola XT1575 using XDA Labs

acejavelin said:
The Style will show 4G instead of LTE... It's normal I believe. You can verify with LTE Discovery or Network Signal Info app, but I don't think it's relevant. Sorry, but I'm running out of ideas.
What version Android, firmware, and radios (Build number and baseband info)?
Sent from my Motorola XT1575 using XDA Labs
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I think that there is all the information that you ask if not, let me know. And thank you So much for your time

I ran into a problem where I couldn't connect to the voice network but data worked, and I discovered that I had accidentally flashed the US modem firmware when I changed ROMs. This probably isn't the case here, as its fully stock, but I think it's worth mentioning. Go to Settings->About Phone->Status->SIM Status and make sure that both voice and data are labeled "In Service".

Ok might need expansion of problem explanation, but here's the deal.....
If getting LTE on and off call, that's true LTE your carrier is supporting.
If getting LTE when not on call and H+ while on a call, then your carrier does not have VoLTE enabled and this is normal. H+ should be plenty fast.
However, if you are getting LTE while not on call but 3G/UMTS/CDMA1900/EVDO/edge/etc(2-3g), then the same rule as above applies, only difference this time is the tower you're connected to does not support H+ or your phone does not support your carrier's H+ frequency.
Who is your carrier?

LTE does not work anymore (G600K)

Hi All,
I bought this LG G6 (G600K) from HK a month ago. It was working perfectly until few days ago when the LTE stopped working. In the notification bar I can see LTE, but there is no data going through. E.g.: messenger shows "Connecting...". Basically no 4G internet any more. So I did my research and these are my findings:
If there is no LTE coverage, the phone switches to 3g and it works - so the problem is only with LTE, but LTE is everywhere nowdays
In this Korea Telecom ROM there is no way to configure to only use 3g (CDMA only), not even in hidden menu - this could be a remedy, but would not solve the issue
Wifi also works
I did Factory Reset twice (also Network settings reset), did not help
I waited for an update from KT, maybe contains a fix, but did not help
I went to my operator (TELENOR Hungary), and they have checked my subscription, and they said everything is ok, but they can see that my phone does not connect to the LTE system.
I tried my SIM in an other phone, and LTE works perfectly
So based on these facts, I can't think of other than the phone has a hardware issue. Do you have any idea how can I investigate further?
Thanks for any suggestion.

pepejazz said:
Hi All,
I bought this LG G6 (G600K) from HK a month ago. It was working perfectly until few days ago when the LTE stopped working. In the notification bar I can see LTE, but there is no data going through. E.g.: messenger shows "Connecting...". Basically no 4G internet any more. So I did my research and these are my findings:
If there is no LTE coverage, the phone switches to 3g and it works - so the problem is only with LTE, but LTE is everywhere nowdays
In this Korea Telecom ROM there is no way to configure to only use 3g (CDMA only), not even in hidden menu - this could be a remedy, but would not solve the issue
Wifi also works
I did Factory Reset twice (also Network settings reset), did not help
I waited for an update from KT, maybe contains a fix, but did not help
I went to my operator (TELENOR Hungary), and they have checked my subscription, and they said everything is ok, but they can see that my phone does not connect to the LTE system.
I tried my SIM in an other phone, and LTE works perfectly
So based on these facts, I can't think of other than the phone has a hardware issue. Do you have any idea how can I investigate further?
Thanks for any suggestion.
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Have you made sure data roaming is turned on as you have Korean model, I had to enable data roaming to get mobile data as the device thinks that's exactly what it's doing.
Sent from my LG-H870 using Tapatalk

nookcoloruser said:
Have you made sure data roaming is turned on as you have Korean model, I had to enable data roaming to get mobile data as the device thinks that's exactly what it's doing.
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Unfortunately it is grayed out. But 3g works and 4g worked before. I have not changed any settings, just went away.

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pepejazz said:
Unfortunately it is grayed out. But 3g works and 4g worked before. I have not changed any settings, just went away.
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Did you fix the problem yet?? I also have same situation like you.........

Hi, sorry to hear. I could not solve yet. I went to the 3rd line support of the operator, but they say everything is fine from their side. So I'm waiting for a custom ROM, or I will change my operator. If you can, send back your phone.

pepejazz said:
Hi, sorry to hear. I could not solve yet. I went to the 3rd line support of the operator, but they say everything is fine from their side. So I'm waiting for a custom ROM, or I will change my operator. If you can, send back your phone.
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Click to collapse
Well i just found temporary fix for grayed out data roaming..this method worked to me
download quickshortcutmaker from playstore open app and switch to normal search find roaming click on roaming - global roaming - create... you can enable data roaming from there..
And for manual network switch LTE /3G : quickshortcutmaker - normal view - network -networksettings global
Hope that helps
Sorry for my bad English..

Wow, thanks. This is working as a remedy. You are the hero of the day

Found the solution !
Google Search : how to fix 3g/4g high on android
(can't put a link since this is my first comment)
Its something related to APN . I've tried it and it works .
Hope this helps . Cheers