Database Users

[Q] SHV-E300S LTE woes

Hi all
I'm new to LTE and the korean S4 is actually my first ever LTE capable phone I've ever owned.
At first, it was already puzzling that "Automatic" network selection in the SKT hidden menu excludes LTE.
Then to find out that picking "LTE ALL" meant that I could get online at LTE speeds BUT not make and receive calls?
So I did a bit of homework and learned about LTE IMS and LTE CSFB and sort of realised partly what my problem is.
Currently my network does not support IMS so picking "LTE All/only" means I'd have no voice call capabilities at all because it's unable to to use CSFB, because 3G is not connected.
But my real question is, can this be fixed? i.e. with a custom ROM? custom-made hidden menu.apk? phone.apk? or with some direct access ussd code even? (my understanding is- skt hidden menu replaces service mode *#0011#)
I also tried messing around with build.prop and added in "ro.telephony.default_network=8"
and that did squat.
can someone please help?

yellowchilli said:
Hi all
I'm new to LTE and the korean S4 is actually my first ever LTE capable phone I've ever owned.
At first, it was already puzzling that "Automatic" network selection in the SKT hidden menu excludes LTE.
Then to find out that picking "LTE ALL" meant that I could get online at LTE speeds BUT not make and receive calls?
So I did a bit of homework and learned about LTE IMS and LTE CSFB and sort of realised partly what my problem is.
Currently my network does not support IMS so picking "LTE All/only" means I'd have no voice call capabilities at all because it's unable to to use CSFB, because 3G is not connected.
But my real question is, can this be fixed? i.e. with a custom ROM? custom-made hidden menu.apk? phone.apk? or with some direct access ussd code even? (my understanding is- skt hidden menu replaces service mode *#0011#)
I also tried messing around with build.prop and added in "ro.telephony.default_network=8"
and that did squat.
can someone please help?
Click to expand...
Click to collapse
Any help?

i think we're stuck with how it is lol

i got a shv e300s too and used the lte all mode, but a few days ago it suddenly does not support lte cause it doesnt receive signals from my network. im from the philippines and

iamcru3l said:
i got a shv e300s too and used the lte all mode, but a few days ago it suddenly does not support lte cause it doesnt receive signals from my network. im from the philippines and
Click to expand...
Click to collapse
Bro I am in the Philippines too and using E300s have this issue been fixed?? I just realized that my LTE was not supported anymore when I updated to android 4.3

adix82 said:
Any help?
Click to expand...
Click to collapse
Hi , I just want to you know, now you can work the LTE , all you have to do download 4.4.2 and unzip it than open odin go to phone in side the firmware you gonna see moden and sboot choice modem and hit start and that wait tell you phone start turn on network you well see LTE working and you call and recive call thats it good luck.

Note 3 LTE no option for 4G network connection

Hello people,
I have recently acquired a Note 3 LTE (Snapdragon 800) model of the phone which is 4G compatible but for some reason, I get no option to select a 4G network. The only options I have to chose from is 3G/2G (auto connect) and 3G only. I have attached a screenshot below showing what I mean. On other Note 3 LTE phones, I've seen a different set of options such as LTE/WCDMA/GSM etc...
Why is it so? I am running the latest version of android according to Samsung update which is version 4.3. So is this a software issue or what? My service provider says that samsung should release a software update to solve this issue but I don't understand why this is the case. If anyone can clarify this issue for me I would be very glad.
Thanks!

Dimitri Stephan said:
Hello people,
I have recently acquired a Note 3 LTE (Snapdragon 800) model of the phone which is 4G compatible but for some reason, I get no option to select a 4G network. The only options I have to chose from is 3G/2G (auto connect) and 3G only. I have attached a screenshot below showing what I mean. On other Note 3 LTE phones, I've seen a different set of options such as LTE/WCDMA/GSM etc...
Why is it so? I am running the latest version of android according to Samsung update which is version 4.3. So is this a software issue or what? My service provider says that samsung should release a software update to solve this issue but I don't understand why this is the case. If anyone can clarify this issue for me I would be very glad.
Thanks!
Click to expand...
Click to collapse
What region are you in?
What firmware version are you on?
Has your LTE been activated by your provider yet?

radicalisto said:
What region are you in?
What firmware version are you on?
Has your LTE been activated by your provider yet?
Click to expand...
Click to collapse
I am in Beirut, Lebanon.
I also have a Galaxy S4 with the latest updates and I get a 4G connection in certain areas. So yes, 4G had already been activated by my provider.
I've attached another screenshot because I am not sure what you mean by firmware version.

Can you compare the S4 and Note 3 "apn settings" to see if they are the same? You might have to manually input your carrier's apn settings into the note.

440bro said:
Can you compare the S4 and Note 3 "apn settings" to see if they are the same? You might have to manually input your carrier's apn settings into the note.
Click to expand...
Click to collapse
Yup try this and see ^^^ :good:

440bro said:
Can you compare the S4 and Note 3 "apn settings" to see if they are the same? You might have to manually input your carrier's apn settings into the note.
Click to expand...
Click to collapse
The apn settings are the same since they have been both configured automatically when the service provider sent the settings to be saved.
What else could it be?

Dimitri Stephan said:
I am in Beirut, Lebanon.
I also have a Galaxy S4 with the latest updates and I get a 4G connection in certain areas. So yes, 4G had already been activated by my provider.
I've attached another screenshot because I am not sure what you mean by firmware version.
Click to expand...
Click to collapse
Try flashing one of the other LTE N9005 roms and see if you get the listings under settings appear( backup first). I know some roms take this option out like at&t here in the states.
---------- Post added at 10:01 AM ---------- Previous post was at 09:55 AM ----------
Better yet try this:
open your dialer and type *#2263# and see if you get the lte option.

daraj said:
Try flashing one of the other LTE N9005 roms and see if you get the listings under settings appear( backup first). I know some roms take this option out like at&t here in the states.
---------- Post added at 10:01 AM ---------- Previous post was at 09:55 AM ----------
Better yet try this:
open your dialer and type *#2263# and see if you get the lte option.
Click to expand...
Click to collapse
Alright so good news. I received a message telling me that there is a new firmware update available, so I downloaded and installed it. Now I get a 4G option even though I never once got a 4G signal during the day. I guess waiting is my only option now. What do you think?

Dimitri Stephan said:
Alright so good news. I received a message telling me that there is a new firmware update available, so I downloaded and installed it. Now I get a 4G option even though I never once got a 4G signal during the day. I guess waiting is my only option now. What do you think?
Click to expand...
Click to collapse
thats good but still you should have the lte option. did u try the code?

daraj said:
thats good but still you should have the lte option. did u try the code?
Click to expand...
Click to collapse
I did but got this message: "Connection problem or invalid MMI code". What is this code supposed to tell me?

Hi guys.
I am facing a somewhat similar issue. What makes it different is that I had the LTE option when I bought the Note 3, although there was no 4G service in the country at that time. However, I think it was after an update that I no longer have the LTE option available to in my network settings. Right now, in my home country, LTE hasnt yet been introduced. But like I said, there was no LTE in my previous country of residence either yet I had the LTE option.
By the way, the code *#2263# does nothing at all on my set.
Appreciate any feedback and resolutions.
Thanks

Dimitri Stephan said:
Hello people,
I have recently acquired a Note 3 LTE (Snapdragon 800) model of the phone which is 4G compatible but for some reason, I get no option to select a 4G network. The only options I have to chose from is 3G/2G (auto connect) and 3G only. I have attached a screenshot below showing what I mean. On other Note 3 LTE phones, I've seen a different set of options such as LTE/WCDMA/GSM etc...
Why is it so? I am running the latest version of android according to Samsung update which is version 4.3. So is this a software issue or what? My service provider says that samsung should release a software update to solve this issue but I don't understand why this is the case. If anyone can clarify this issue for me I would be very glad.
Thanks!
Click to expand...
Click to collapse
If your phone is rooted (seems like it isn't) then you can manually edit a config file to enable LTE. If not, you'll be waiting for another OTA update I think.

Dimitri Stephan said:
Alright so good news. I received a message telling me that there is a new firmware update available, so I downloaded and installed it. Now I get a 4G option even though I never once got a 4G signal during the day. I guess waiting is my only option now. What do you think?
Click to expand...
Click to collapse
sadi2e you have to go Touch or Alfa to replace your SIM with a 4g compatible one, btw ignore the costumer support telling you that you won't receive any signal if you get out of 4g zones,they are total idiots
I replaced mine and now getting 13 14 mb/s speeds
Contact me here if you need any further assistance

lesalloum said:
sadi2e you have to go Touch or Alfa to replace your SIM with a 4g compatible one, btw ignore the costumer support telling you that you won't receive any signal if you get out of 4g zones,they are total idiots
I replaced mine and now getting 13 14 mb/s speeds
Contact me here if you need any further assistance
Click to expand...
Click to collapse
Nice to see a Lebanese on these forums. I've already changed my sim card to the 4G capable one but I still don't see a 4G icon wherever I go.

Dimitri Stephan said:
Nice to see a Lebanese on these forums. I've already changed my sim card to the 4G capable one but I still don't see a 4G icon wherever I go.
Click to expand...
Click to collapse
Im from there too originally. Did you change your modem at some point? It could be that your current modem is not LTE capable. Or let me ask you this: Did you install a stock rom from a different country other then the one that your device is intended to? bas bi beirut fi LTE aw wen maken?

daraj said:
Im from there too originally. Did you change your modem at some point? It could be that your current modem is not LTE capable. Or let me ask you this: Did you install a stock rom from a different country other then the one that your device is intended to? bas bi beirut fi LTE aw wen maken?
Click to expand...
Click to collapse
What modem are you talking about? The rom is stock. LTE is only available in Beirut and some other places surrounding it.

hi
i have got same issues with LTE
please help

how ?
Dimitri Stephan said:
Alright so good news. I received a message telling me that there is a new firmware update available, so I downloaded and installed it. Now I get a 4G option even though I never once got a 4G signal during the day. I guess waiting is my only option now. What do you think?
Click to expand...
Click to collapse
Hello , I have a USIM, and note3 4G ( bought from KSA and tried on 4G in Dubai and KSA) . I did not get any updates on wifi nor through kies .
Did you change you upload a new platform ( kitkat) before you got the update ? or did you just wake up and found an update ?
PS : I live in Beirut Lebanon too .
Thanks

Me too with the same problem
I bought my phone from Dubai.. i saw the LTE option when i used my phone there.. but then i flashed Poland's latest firmware and rooted my device.. now i am in South Asia , and my phone doesn't show any LTE option..! :silly: weird..

I'll say it again: Each CSC has a different list of 4G activated providers that are not directly related to the region they are in.
Which means that a device can have 4G activated for 50 providers, just not the one your SIM belongs to. As such, if you insert the SIM, the 4G toggle is disabled.
Each provider has to individually pass on the fact that they have 4G to Samsung. Even then it's not activated for each CSC.
As such, my DBT Note 3 had 4G on T-Mobile NL months before the TL and PHN ROMs had it.
Also, South Asia uses a different frequency your EU firmware can't detect.

[N9005] 4G was working. Now it's not. Help!

One morning when I woke up my N9005 was stuck in the boot animation. I waited a while but I had to hold the power button in to force a power off. Since then I have had no 4G at all. 4G was working before this. Can anyone suggest anything that might re-enable 4G?

Contact your operator.

AndrOmega said:
Contact your operator.
Click to expand...
Click to collapse
It's nothing to do with my operator. I have tried two different SIMs from two different operators that both worked with 4G before. I own the phone, it came from eBay but as I said it was doing 4G before.
--
Brian G. (In the UK)

More info
See attached screenshots:
I'm not sure why "Available CSC Codes" is blank.
Could that be part of the problem?

bdg2 said:
See attached screenshots:
I'm not sure why "Available CSC Codes" is blank.
Could that be part of the problem?
Click to expand...
Click to collapse
Reflash your phone with the latest version from sam mobile

AndrOmega said:
Reflash your phone with the latest version from sam mobile
Click to expand...
Click to collapse
I already did that. At least I think I did it right. Afterwards it started up exactly as usual. There was no extra optimising apps like after an upgrade. I used Odin. Do you think I did it right? I also tried a factory reset. Still no 4G.
--
Brian G. (In the UK)

bdg2 said:
I already did that. At least I think I did it right. Afterwards it started up exactly as usual. There was no extra optimising apps like after an upgrade. I used Odin. Do you think I did it right? I also tried a factory reset. Still no 4G.
--
Brian G. (In the UK)
Click to expand...
Click to collapse
I can't help anyhow but what I do if I loose LTE connection I force it back with 4G Switcher app. You choose LTE only and it should connect (though I can't call or receive calls in LTE only mode) so what I do is when LTE conects I swap mode to LTE/Gsm auto and LTE stays as long as I'm on LTE area (until I somehow loose LTE again in area where LTE is available). Try that out maybe it will drive you to some new conclusions what the issue may be.

boloboss said:
I can't help anyhow but what I do if I loose LTE connection I force it back with 4G Switcher app. You choose LTE only and it should connect (though I can't call or receive calls in LTE only mode) so what I do is when LTE conects I swap mode to LTE/Gsm auto and LTE stays as long as I'm on LTE area (until I somehow loose LTE again in area where LTE is available). Try that out maybe it will drive you to some new conclusions what the issue may be.
Click to expand...
Click to collapse
Do you mean this one?
https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher
It says it's incompatible with my device!
Also it sounds like you had the situation where you lose the ability to select "LTE/WCDMA/GSM (auto connect)" and can only select "WCDMS/GSM (auto connect)". I have not lost the ability to select "LTE/WCDMA/GSM (auto connect)".

bdg2 said:
Do you mean this one?
https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher
It says it's incompatible with my device!
Also it sounds like you had the situation where you lose the ability to select "LTE/WCDMA/GSM (auto connect)" and can only select "WCDMS/GSM (auto connect)". I have not lost the ability to select "LTE/WCDMA/GSM (auto connect)".
Click to expand...
Click to collapse
1- Yes, that's the one
2- It works on my Note 3
3- As to your assumption...well I'm not sure what you talk about. I'll explain my issue. Sometimes when I'm on LTE available area my phone connects to HDSPA+. Then I do what I described (I choose LTE on this app to force connect via LTE). I don't know do I loose "ability to select "LTE/WCDMA/GSM (auto connect)" as you said. To be specific what are you reffering with it to? To phone settings or to this app setiings? All I can choose on phone settings is 2g,3g and 4g. There's no X/Y auto connect. This option is in apps settings though and I don't really care what I loose there as long as it works when I want to force LTE with it. I'm courius why it's not compatible with your device. What phone do you have?
All in all in the end use of this app won't solve your issue permanently but with it you could make sure LTE receiver and LTE drivers on your phone system works. Then you could dig down further. You would just know that LTE works at all on your phone.

boloboss said:
1- Yes, that's the one
2- It works on my Note 3
3- As to your assumption...well I'm not sure what you talk about. I'll explain my issue. Sometimes when I'm on LTE available area my phone connects to HDSPA+. Then I do what I described (I choose LTE on this app to force connect via LTE). I don't know do I loose "ability to select "LTE/WCDMA/GSM (auto connect)" as you said. To be specific what are you reffering with it to? To phone settings or to this app setiings? All I can choose on phone settings is 2g,3g and 4g. There's no X/Y auto connect. This option is in apps settings though and I don't really care what I loose there as long as it works when I want to force LTE with it. I'm courius why it's not compatible with your device. What phone do you have?
All in all in the end use of this app won't solve your issue permanently but with it you could make sure LTE receiver and LTE drivers on your phone system works. Then you could dig down further. You would just know that LTE works at all on your phone.
Click to expand...
Click to collapse
"LTE/WCDMA/GSM (auto connect)" is a setting on my phone. See my Screenshot_A.png above. It tells the phone to automatically switch between LTE (4G), WCDMA (3G) and GSM (2G). The other choices don't include 4G. I reach it by Settings / Connections / More networks / Mobile networks / Network mode.
Is you phone rooted? Mine isn't. Could that be why the app doesn't like my phone?

Further info: apparently the phone was originally Portuguese but has been flashed with UK BTU firmware. However as I said before it definitely did do 4G when I first got it. Samsung tried to tell me there was some kind of update that might has disabled 4G in the UK for this device. Sounds like a made up excuse to me.
--
Brian G. (In the UK)

What baseband and bootloader are on the phone? Do they match the uk firmware?

audit13 said:
What baseband and bootloader are on the phone? Do they match the uk firmware?
Click to expand...
Click to collapse
I think so. Isn't the info in my screenshots of Samsung Phone Info Plus (in a post a further up the thread) enough to confirm?
If not could you guide me how I can check. Thanks.

I compared it to uk firmware on sammobile.com and it seems to match. Maybe you need to flash the entire uk firmware again in Odin?

Still same. I've taken it to a Samsung service centre now.
--
Brian G. (In the UK)

bdg2 said:
Still same. I've taken it to a Samsung service centre now.
--
Brian G. (In the UK)
Click to expand...
Click to collapse
It's back, and it's working fine now. And, nice surprise, it was apparently just inside it's guarantee period so I didn't have to pay.
I'm not sure what they did but it's back on Portuguese firmware, which doesn't seem to matter, I just select English (UK) after factory reset and all is well.
Oddly the WiFi adapter has a new MAC address but the magnetic field sensor must be the original one since it's calibration is way off exactly as it was originally. (You have to calibrate it after every reboot by rotating the device in three axis if you want compass functions to work).
--
Brian G. (In the UK)

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

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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
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