Database Users

Disable GSM, use LTE/WCDMA only

I tried searching however could not find anything. Perhaps I may be using the wrong wording.
What I am trying to accomplish is to disable the GSM mode. What I find is the phone likes to jump to the GSM network and with that the internet connection just doesn't move at all. If I force the phone to WCDMA mode it work just fine standing in the same spot, so the phone is still picking GSM over WCDMA even when there is a good signal for WCDMA.
Current modes:
LTE/WCDMA/GSM (auto connect)
WCDMA/GSM (auto connect)
WCDMA Only
GMS only
Is it possible to have a LTE/WCDMA option?

MrDerrickC said:
I tried searching however could not find anything. Perhaps I may be using the wrong wording.
What I am trying to accomplish is to disable the GSM mode. What I find is the phone likes to jump to the GSM network and with that the internet connection just doesn't move at all. If I force the phone to WCDMA mode it work just fine standing in the same spot, so the phone is still picking GSM over WCDMA even when there is a good signal for WCDMA.
Current modes:
LTE/WCDMA/GSM (auto connect)
WCDMA/GSM (auto connect)
WCDMA Only
GMS only
Is it possible to have a LTE/WCDMA option?
Click to expand...
Click to collapse
I miss this option. The Xperia Z had this mode, I loved it. It was reachable via the common code *#*#4636#*#*. But this code doesn't work on the GT-I9505 with stock Samsung ROMs. But even with custom ROM, and working code. This special mode is missing. There are 2 switches for "LTE only" and "WCDMA only" but not both

Try this:
https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher&hl=de

MrSpiceGuy said:
Try this:
https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher&hl=de
Click to expand...
Click to collapse
App doesn't seem to work, when I hit "Select Radio Band" it comes up with "Set GSM/UMTS Band" and nothing else.

MrDerrickC said:
App doesn't seem to work, when I hit "Select Radio Band" it comes up with "Set GSM/UMTS Band" and nothing else.
Click to expand...
Click to collapse
You have to use "prefered network type" as seen here
https://lh5.ggpht.com/y1CQbSg9Wf8J3q3klA3GNi_IgVtluML2jwhW38ldPpExSPTQ_SEu6iWJa3kRNaiSfcg
This should work

Here is my screenshot. It only has "LTE/CDMA", which only allows me to use LTE. There is no "LTE/WCDMA" option.
Perhaps, this might be an idea for rom creators?

also interested in this.

yes, please add this function LTE/WCDMA only into ROM CYANOGENMOD.
because LTE/GSM auto (PRL) connect to 2G/3G/4G, and i'm not interested for 2G.

Did anyone ever find a solution to this?

fergietime said:
Did anyone ever find a solution to this?
Click to expand...
Click to collapse
Solution please ! I have the same problem also

True. I am able to use the following:
LTE/GSM (prl)
WCDMA (prl)
GSM Only (prl)
I am unable to use LTE/WCDMA/GSM
I am using XXUGNG8 modem, and I am unable to use 2G (network won't connect).
3G works in most cases, but it is still dropping. Only technology which works correctly is LTE...stable and fast.
I am unable to switch the network band to any other one. I tried it with service menu tool, but it does not work either (allows me to change to defined items above, and reverts back to LTE/GSM if I'll select anything else).
Is there a way to add support for more network modes? I am confident that my issues are not related to HW, as both bootloader, GSM modem and LTE modem are all of the same version - XXUGNG8, and I do have very good reception for whole band. I am just unable to switch over to 2G, and 3G is still dropping.
I live in Prague, Czech Republic, and I own GT-9505i variant

Any solutions guys?

any solution to this date? im interested in the same thing.

I finally found a solution that works on my Samsung Galaxy S5. Enter code *#2263# into your dialer. An option menu will open with "LTE/WCDMA Mode" only as an option. Works like a charm!

Wrong posted.

Hi,
Sorry to bump this but I have the same issue. I have a Galaxy S4 and it is very weird with its network selection.
The default setting is LTE/GSM auto, which I believe is LTE combined with the GSM Auto mode that everyone knows about - this being, prefer 2G instead of 3G in weak signal areas.
I have the following options:
LTE Only
LTE/GSM Auto
GSM Auto
WCDMA Only
GSM Only
WCDMA Preferred
Plus a load of other stuff about CDMA and EvDo (I'm sure that the GT-I9505 doesn't support CDMA or EvDo?).
The problem I am having is as follows:
Immediately when I got the S4, I realized that it was preferring GSM over WCDMA/HSPA. This was confirmed when compared with a Samsung Galaxy Ace Plus, on the same network, in the same location, and the Ace Plus (S7500) was choosing 3G, whilst the S4 chose 2G. Doing a bit of Googling led me to find the WCDMA setting, and after choosing that, the S4 chose 3G.
So all was good for the last 2 years, using WCDMA Only mode on my S4, as my mobile operator (Virgin Mobile) didn't have 4G access. Losing LTE wasn't a problem.
However, now I have switched to the EE network, I now face a problem. As mentioned above, there is the WCDMA Only mode, and the LTE Only mode - meaning that I am unable to have both 3G (WCDMA) and 4G (LTE) without also having GSM, and there is no way that I want to ever use GSM again, especially since that EDGE/GPRS are barely usable as data connections, GSM has sub-standard voice quality, and the S4 is choosing GSM over WCDMA.
A couple of examples, once on my way home, the S4 dropped from 4G to 2G and completely ignored 3G - despite being right next to a 3G mast operated by EE (albeit on the old Orange code). On WCDMA mode, the phone always connects to the Orange 3G mast. Thankfully, a bit later on, it did pick up 4G again, but if I was streaming Tunein Radio, that would have been a disaster (it would have dropped the stream).
A bit later on, on the same journey, the phone also went to 2G, from 4G - despite being in a reasonable signal area for 3G. Why didn't the phone choose 3G? I'd had enough by then and switched to WCDMA Only mode; result? 28% 3G signal (3 bars)!
It's also happened on my local mast, until a few weeks ago. The S4 was choosing 4G from a more distant mast (strength 50%), instead of 3G from the local mast (strength 60%). When I went downstairs, to the kitchen, the signal strength dropped and the phone went straight to GPRS! GPRS is likely to give about 30kbps max, so I don't know why the phone was doing this - although about 20-30 seconds later, it did then go to the 3G from the local mast.
I can't use LTE Only mode as (a) the 4G rollout isn't complete, and (b) the S4 does not support Voice Over LTE (VOLTE), meaning that in 4G only mode, I have no way of accepting or receiving calls.
I need a 3G/4G mode (LTE/WCDMA) on my S4, that doesn't use 2G at all, because 3G/4G signals are present virtually everywhere on the EE network, and it would stop the S4's crazy behavior.
Any suggestions to remedy this would be appreciated. I am not rooted, though if someone knew how to root the phone for me, it could be a possibility, as it is out of warranty.

935p unlocked and flashed to 935u but can't pick up cdma bands

So maybe this was a bad idea but I'm on boom mobile (verizon mvno) and thought I could save some money and picked up a sprint s7 edge on sale, I just had it unlocked and they flashed it to the 935u unlocked version. The problem is I can't connect to the verizon network, after playing around with it a bit I got it to connect to the verizon lte network but still no voice. In my meager attempts to troubleshoot I noticed I have the options under network mode of
LTE/3g/2g -->> this picks up all networks in my area (Verizon, Sprint, ATT, Tmobile, US Cellular)
3g/2g --> only shows ATT and Tmobile
3g --> only shows ATT and Tmobile
2g --> only Tmobile
So I'm thinking my phone isn't setup right to connect to cdma networks which I thought the 935u rom was supposed to do. Anyone have any tips on how i can further troubleshoot this?
Thanks in advance.
edit: Well I installed a program called 4g LTE switch and set it to cdma only and I was able to make a phone call (3g data also worked) like that but changing it to LTE/cdma wouldn't let me make a call but LTE data worked, if i leave it set to LTE/cdma and reboot it switches back to LTE only.
edit2: Maybe it's trying to connect to volte which isn't offered for Verizon MVNO's yet but i don't see any settings available to disable that.
edit3: When set to LTE/CDMA I could sometimes make outgoing calls, sometimes I would get the double dial prompt, it was very slow to switch between LTE and CDMA so I would miss incoming phone calls.
I threw in the towel and just flashed the latest Verizon rom and it's working properly.

How to force 'LTE only' on LG V20

This is a guide for those who want to force 'LTE only' on LG V20 Global dual sim version.
As anyone knows, *#*#4636#*#* WILL NOT work with LG V20 and all LG phones starting with Lollipop and later Android versions except for the LG-Nexus releases. LG has locked this menu. Samsung and Huawei are also notorious for locking this menu. These phones will show 'access denied' when you try to force 'LTE only' using the *#*#4636#*#* service menu.
There are however phone manufacturers who do not lock this menu. These include Sony, Asus, Oppo, Vivo, Xiaomi, Google Pixel, and Nexus phones (various manufacturers). I don't know why manufacturers lock this menu when it is very helpful to users in areas with weak but consistently available LTE signal. By being able to force 'LTE only', you get dramatically better speeds as compared to 3G only.
Anyway, the good news for LG V20 H990 (dual sim version) users is there's a way to force 'LTE only' despite LG locking out the *#*#4636#*#* service menu:
I've outlined here the steps for the workaround:
Note: For LG V20 (H990 dual sim model) only
How to set ‘LTE only’ data mode for SIM1 slot on
LG V20 H990 dual sim version:
Important:
1. When on ‘LTE only’ – you cannot receive calls but you can receive texts. If you go out of an LTE area, your SIM1 (on ‘LTE only’) will be off or will not have any network signal; it will not do automatic switching to 3G or 2G under ‘LTE only’ so you lose the ability to send/receive text messages as there is no LTE signal.
2. This setting only applies to SIM1 slot of the dual SIM model of LG V20 H990. This will not work on SIM2 slot so be sure to place your ‘data-only’ sim to SIM1 tray while placing your ‘call and text’ sim to SIM2 tray (so it won’t be affected by the ‘LTE only’ setting).
Here’s the code to input on your dialer:
*#546368#*990#
Field Test
Modem Settings
RAT Selection
Choose LTE only
If you want to revert back to auto network settings, you can follow the same procedure but choose 'GSM/WCDMA/LTE auto' or other settings instead.

It works, but sometimes it makes the signal to no signal.

Great
I trie many things to changing roms...None of them worked. I'm very thankfull to this simple solution. I chose LTE/GSM and now network problems completetely finished.

APK
The app LTESwitch will work. I uncheck all options in the program, and just use the dropdown setting from the status bar to select (L)TE or (A)uto.
A side benefit for me is that if I set it to LTE Only, the phone rejects all incoming calls. That way, if I'm downloading something, a phone call won't interrupt the download.
The unfortunate issue is that it breaks my ability to make/receive calls if I select "(G)SM Only". I'm sure that is because my market is almost exclusively HSPA/HSPA+ for calls.
However, if I need to force LTE, it does it immediately.
I then set to "Auto" for normal operation.
HTH

Looking for a solution for my new used H800K that is now rooted. Sadly *#546368#*990# does work on my old Hong kong model that I am leaving yet *#546368#*800# menu does not show Field Test, although my H990N can do it in the menu so I always had it on 3G only because radiation is very low compared to 4G, and even 2G is higher then 3G as testing. 4G is nearly always in the RED!!! Whereas 3G is in the GREEN nearly always.
Also helps not downloading to fast to burn up the mobile and make it slow.
So... Looking for a way to get only 3G on my H800K... Sad with all the nonsense they do to phones and waste so much time of ours. Tyrants is what they are, coding Tyrants!

Hash-82 said:
APK
The app LTESwitch will work. I uncheck all options in the program, and just use the dropdown setting from the status bar to select (L)TE or (A)uto.
A side benefit for me is that if I set it to LTE Only, the phone rejects all incoming calls. That way, if I'm downloading something, a phone call won't interrupt the download.
The unfortunate issue is that it breaks my ability to make/receive calls if I select "(G)SM Only". I'm sure that is because my market is almost exclusively HSPA/HSPA+ for calls.
However, if I need to force LTE, it does it immediately.
I then set to "Auto" for normal operation.
HTH
Click to expand...
Click to collapse
Indeed it seemed it does work!!! YEEAAAAAA THANKS SO MUCH. F800K now running 3G or WCDMA only
Found it here And am running 3G only now Ha ha ha, nice. Unto next problem! As usual a line of them.
4G LTE Switch for Android - APK Download (apkpure.com)

Jesus is God Almighty said:
Looking for a solution for my new used H800K that is now rooted. Sadly *#546368#*990# does work on my old Hong kong model that I am leaving yet *#546368#*800# menu does not show Field Test, although my H990N can do it in the menu so I always had it on 3G only because radiation is very low compared to 4G, and even 2G is higher then 3G as testing. 4G is nearly always in the RED!!! Whereas 3G is in the GREEN nearly always.
Also helps not downloading to fast to burn up the mobile and make it slow.
So... Looking for a way to get only 3G on my H800K... Sad with all the nonsense they do to phones and waste so much time of ours. Tyrants is what they are, coding Tyrants!
Click to expand...
Click to collapse
Thanks I was looking for that!!!

don brian said:
This is a guide for those who want to force 'LTE only' on LG V20 Global dual sim version.
As anyone knows, *#*#4636#*#* WILL NOT work with LG V20 and all LG phones starting with Lollipop and later Android versions except for the LG-Nexus releases. LG has locked this menu. Samsung and Huawei are also notorious for locking this menu. These phones will show 'access denied' when you try to force 'LTE only' using the *#*#4636#*#* service menu.
There are however phone manufacturers who do not lock this menu. These include Sony, Asus, Oppo, Vivo, Xiaomi, Google Pixel, and Nexus phones (various manufacturers). I don't know why manufacturers lock this menu when it is very helpful to users in areas with weak but consistently available LTE signal. By being able to force 'LTE only', you get dramatically better speeds as compared to 3G only.
Anyway, the good news for LG V20 H990 (dual sim version) users is there's a way to force 'LTE only' despite LG locking out the *#*#4636#*#* service menu:
I've outlined here the steps for the workaround:
Note: For LG V20 (H990 dual sim model) only
How to set ‘LTE only’ data mode for SIM1 slot on
LG V20 H990 dual sim version:
Important:
1. When on ‘LTE only’ – you cannot receive calls but you can receive texts. If you go out of an LTE area, your SIM1 (on ‘LTE only’) will be off or will not have any network signal; it will not do automatic switching to 3G or 2G under ‘LTE only’ so you lose the ability to send/receive text messages as there is no LTE signal.
2. This setting only applies to SIM1 slot of the dual SIM model of LG V20 H990. This will not work on SIM2 slot so be sure to place your ‘data-only’ sim to SIM1 tray while placing your ‘call and text’ sim to SIM2 tray (so it won’t be affected by the ‘LTE only’ setting).
Here’s the code to input on your dialer:
*#546368#*990#
Field Test
Modem Settings
RAT Selection
Choose LTE only
If you want to revert back to auto network settings, you can follow the same procedure but choose 'GSM/WCDMA/LTE auto' or other settings instead.
Click to expand...
Click to collapse
You need to install this app for FREE
at Google Play
https://play.google.com/store/apps/details?id=com.teknokia.force4glteonly
pro version : https://play.google.com/store/apps/details?id=com.teknokia.force4glteonlypro
galaxy store: https://apps.samsung.com/appquery/appDetail.as?appId=com.teknokia.force4glteonly
pro version : https://apps.samsung.com/appquery/appDetail.as?appId=com.teknokia.force4glteonlypro

not receiving incoming calls...

just got the phone yesterday and updated it to the P beta. everything works amazingly well for a beta in my opinion, BUT i cant receive calls. outgoing calls, texts, web and apps are just fine.
spent almost 2 hours at tmobile flipping all the settings around and no luck. any ideas would be appreciated.

Same issue here bro...Incoming don't ring but I get voicemail notifications.... Really annoying, even if it is a DP.

Turns out the beta doesn't play well with the essential LTE. Switch to 3g and calls will come through. Hopefully it doesn't take long to find a work around for it

I believe the people having this issue have volte enabled...try and disable volte (it's broken anyway and more than likely why calls won't ring through) and see if that works

Got same issue... My experience was that I could solve the problem with reboot.
Issue came after playing on settings for mobile network.
Is meaning, when you do this you have to reboot afterwards otherwise you can't receive calls
Try it.

vergilbt said:
Got same issue... My experience was that I could solve the problem with reboot.
Issue came after playing on settings for mobile network.
Is meaning, when you do this you have to reboot afterwards otherwise you can't receive calls
Try it.
Click to expand...
Click to collapse
Tried rebooting multiple times while changing settings around. The only way I can get the calls to come through is by going without LTE completely.

knotjeff said:
Tried rebooting multiple times while changing settings around. The only way I can get the calls to come through is by going without LTE completely.
Click to expand...
Click to collapse
Settings/network settings/mobile network/advanced/enhanced LTE?

I had the same issue and to fix mine I just enabled Wifi Calling.
When on wifi I didn't get a call, just missed call notification. After enabling wifi calling, it comes through without issue.
I tested calling off wifi and on wifi and all calls come through good now.
This could be similar, so you guys might want to look at that also.
Good luck!

Heard from a few that this was solved by going into phone app settings -> calls -> calling accounts, then turning on "receive incoming calls". Seems it's disabled to save battery? Can't confirm as I just flashed to try it out and then went back to 8.1 because I like themes too much. Lol.

I'm on Sprint and was never able to make or receive calls regardless of Network settings in the easily accessible options menu.
The following fixed my issue. You can access this menu without downloading an app but I forget how so it's easier to just download the free app https://play.google.com/store/apps/details?id=com.xsquarestudio.forcelte
I had my network mode set to LTE/CDMA when first using this app, and somewhere in the middle I changed it to CDMA but I'm not sure how much that impacted the actual fix.
These were my steps. I'm not responsible for any damage this may cause to your device as I'm not sure if messing with these settings is foolproof or not.
First, opened previously linked app "Force LTE" then under "Set Preferred Network Type" I changed to CDMA only. Enabled/disabled airplane mode. This seemed to do nothing as LTE was still showing in statusbar.
I then chose CDMA auto (PRL), airplane mode on/off, didn't seem to do much either. LTE still showed in statusbar and couldn't make calls. Also "Voice Network Type" showed "Emergency Calls only" inside the app.
I then chose the 3 dot menu and chose "select radio band". I changed that to United States, without resolving problem. Then selected "Cellular 800" and this may have solved the problem, but I continued on and selected PCS, fiddled with some settings in Phones settings menu. Was finally able to receive calls and my signal indicator showed 3G. In app Voice Network Type was listed as 1xRtt. I decided to select radio band once more and chose Class 10.
Calls were still functioning fine. So I went into Main settings menu and changed mobile network from CDMA to LTE/CDMA. LTE kicked in and calls still work!
Again, these settings may only work for Sprint hence the PCS Network option, and I believe Sprint may utilize the 800mhz frequency. The app might show you different options depending on your carrier. I don't know.
Anyway, fully functioning! Woohoo!!

Forgetfull said:
Settings/network settings/mobile network/advanced/enhanced LTE?
Click to expand...
Click to collapse
I don't have anything in my settings that says "enhanced LTE" .
Tried using the 4g/LTE and the LTE only options. Neither would let calls through.

I have this problem using the Essential PH-1 with Android 9 Pie in South Korea on the KT network. It should be fully compatible, according to radio specifications, however it only works when I change the following setting:
Settings | Network & Internet | Mobile network | Advanced | Preferred network type | 3G
This is not ideal, since it makes the Internet slow, but at least I can make/receive voice calls. I submitted a support ticket to Essential requesting their official help (I'm well within warranty).

I had the same issue when I use my Att prepaid plan. The problem is caused by wrong network type, you can send text and browse internet, because they use the different channel. My PH-1 wrongly recognized the sim as CDMA/LTE mode, just switch it to 4G/LTE, it will be work. Go to Settings, then search "wi-fi calling", point "advanced" then you can see an opinion "Preferred network type" if you are ATT or T-mobile user, and your preferred network type is "LTE/CDMA“ then your phone cannot make call. Switch it to "4G/LTE", you phone will be work. BTW, Verzion uses CDMA, so if you are Verzion user, CDMA/LTE will work for you phone.

LTE in DoCoMo does not work.

I got this (i9190) mobile for my kid, and it fits kids hand perfectly. But I can not make it connecting to LTE in Japanese DoCoMo. It is set in Auto mode, looks like LTE should be supported there (it is present in the APN config, and it was working in Europe).
The sim card is OCN mobile (DoCoMo subsidiary), "new contract"(made in 2022)
SIM type: voice + LTE.
The mobile works with voice and SMS. but data connection does not work. According to setup-info network is always in HSDPA mode.
I tried the same settings on Galaxy A3, and it worked perfectly; the mobile was in LTE mode from the beginning.
I may be mistaken, but before getting OCN/Docomo SIM, I tried my old Softbank LTE sim for iPhone 5 in this S4-mini, and it seemed working with "jpspir" APN fine.
Both mobiles are non-locked, brought from Europe.
Is there a way to make it work with LTE? Like making it more flexible in selecting data modes, making LTE preferred, or blocking HSDPA?
In the service menu (*#0011#) I found LTE_ONLY, and something like CDMA_...LTE_ONLY modes.. but it looks like it should disable the main UMTS voice mode. Now it is in GSM_WCDMA_ONLY, which may be the problem. But I do not know which is correct.
So, I appreciate if you have any guess on the problem

Really, I came to thinking that that LTE in APN, and in the service menu are just some rudiments left from the main platform, not available in the equipped Qualcom baseband chip.