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Force phone to stay connected to LTE instead of dropping to 3g

I have a stock Sprint Note 5 SM-N920P with latest Nougat update. I changed jobs and the service isn't very good there. According to signal apps I get about 53% LTE signal at my office with a whopping 250 Kbps. Randomly throughout the day it just drops down to 3g and stays there and Sprint's 3g is useless. If I turn on airplane mode and then off again it will usually reconnect to LTE. How do I prevent the phone from dropping to 3g? I don't see that option in the network settings only LTE/CDMA in preferred settings. I signed up for the Magic Box but haven't heard back from them yet. I might just buy my own personal signal booster if Sprint doesn't come through. I was looking at this one: https://cellphonesignalbooster.us/weboost-home-4g-470101-desktop-booster-kit/ or this: https://www.signalbooster.com/products/ez-4g Anyone have any experience with boosters? It has to have an internal antenna for my situation.

When i had a Note 4, i could force LTE connection by hitting *#2263# and entering the service mode.

You need to be rooted for this to work.
1. Download Shortcut Master
2. Open and go to Secret Code Explorer
3. Select 2263 and option 0 (root)

jfracine said:
You need to be rooted for this to work.
1. Download Shortcut Master
2. Open and go to Secret Code Explorer
3. Select 2263 and option 0 (root)
Click to expand...
Click to collapse
Thanks but I am not rooted and no longer need this. I was lucky and got a Magic Box and wouldn't you know... it actually IS Magic. I'm certain this thing is going to give me cancer but at least I have fast LTE!

Force LTE / 4G Only On Samsung Galaxy J7 Pro , Prime, max etc

these tips and tricks is works on other type of samsung galaxy series
please follow these steps :
1. You must be Using SIM 1 as Mobile data internet connection
2. Download and Install the MTK Engineer App" on google playstore;
3. RUN the App that you have installed above
4. those are 3 menu : 1. MTK Engineer MOde ( for Chipset Mediatek ) ; 2. Android Testing ; 3. LTE Switcher . We shouls choosing the third menu ( LTE Switcher ). You will go to Phone info user interface
5. in the phone info . choosing the LTE only at set preferred network section.
For more detail information , video tutorial and Screenshot please go to How To Lock 4G Only or LTE Only On SAMSUNG

Not Working
Hi,
I DLed the MTK Eng App. I go to the LTE Switcher page and select LTE or LTE/WCDMA (or any setting actually). After I exit the page and come back it reverts to WCDMA Prefered.
I am definitely in an LTE covered area (I know because my wife's J5 is connected to LTE).
Any ideas? TIA!

you need to setting SIM 1 as mobile data defaults. it will work with no get back to lte wcdma preferred.

richb01 said:
Hi,
I DLed the MTK Eng App. I go to the LTE Switcher page and select LTE or LTE/WCDMA (or any setting actually). After I exit the page and come back it reverts to WCDMA Prefered.
I am definitely in an LTE covered area (I know because my wife's J5 is connected to LTE).
Any ideas? TIA!
Click to expand...
Click to collapse
you need to settiing SIM 1 as mobile data default.

Samsung S10e Signal Fix Sprint (If Needed)

1.)Remove third party potential threating apps just to be sure.
2.)Always make sure the phones up to date on the latest firmware.
3.)The next step is to go to the dialer ##72786# that forces the phone to reactivate.
4.)Next step go back to the dialer and dial ##3282#
4.2)Go to edit
4.3)Then type 000000
4.4)Then go to LTE
4.5)Then go to band 41 that is enabled and uncheck to disable.
4.6)Then go to band 25 that is enabled and uncheck to disable.
4.7)Then go to band 41PCII that is enabled and uncheck to disable.
5.)Reboot the phone don't expect full LTE service yet there are still some more steps...
6.)Go to settings find VOLTE and enable. Search VOLTE in the search bar to enable it.Swipe right on the button to turn it on. New icon will pop up at the top of the phone if done correctly.
7.)Then go back to the dialer and type ##3282#
7.2)Go to edit
7.3)Then type 000000 again
7.4)Then LTE again
7.5)Then go to band priority
7.6 & 7.7)Set both bands 41 and 25 to the bottom of the list by typing the number 17 on band 25 and 18 on band 41 and that pushes them down the list. Make sure band 26 is set to 1 on the priority list.
7.8)Then turn off your phone and turn it back on.
This fix is broken from a network reset or ##72786# update or Samsung software update. So reapply the fix after each update or network reset

First, I'd like to say thank you for this information. My phone was showing 1 bar and it now showing 3. Recently while in Costco, it took a long time for me to connect to a website and I had 0-1 bars, while my brother on his Galaxy S6 had full speed and bars. I hope this fixes that issue.
Why the hell is this a thing?

What if I can't find VoLTE in my settings? Will this still work?

Cannot force 3g since Android 12

Phone: Unlocked 4a. Network: Verizon
I have a macro that enabled me to switch between 4g LTE and 3g by toggling the value of the the system setting "preferred_network_mode" between 8 (LTE,CDMA,and EvDo and 4 (CDMA and EvDo). I also would toggle preferred_network_mode1 and 2 as well. Then, switching off and on airplane mode would enable the setting.
After the upgrade to android 12 (or possibly one of the monthly security updates) I can no longer force 3g. The preferred_network_mode value gets updated to 4, but the phone does not change from LTE, even after a restart.
Is there another setting that must be changed in 12 to enact that network change or did they kill that functionality altogether?
And before anyone asks - I know 3g is dying, but I live in AZ and many rural areas have no 4g but still get coverage fine with 3g. I'd like to keep using it until VZW turns it off completely.

PhxCliff said:
Phone: Unlocked 4a. Network: Verizon
I have a macro that enabled me to switch between 4g LTE and 3g by toggling the value of the the system setting "preferred_network_mode" between 8 (LTE,CDMA,and EvDo and 4 (CDMA and EvDo). I also would toggle preferred_network_mode1 and 2 as well. Then, switching off and on airplane mode would enable the setting.
After the upgrade to android 12 (or possibly one of the monthly security updates) I can no longer force 3g. The preferred_network_mode value gets updated to 4, but the phone does not change from LTE, even after a restart.
Is there another setting that must be changed in 12 to enact that network change or did they kill that functionality altogether?
And before anyone asks - I know 3g is dying, but I live in AZ and many rural areas have no 4g but still get coverage fine with 3g. I'd like to keep using it until VZW turns it off completely.
Click to expand...
Click to collapse
Can't you just change that on SIM settings?
There's an option there to choose the preferred connection type. If you choose 3G there, it doesn't work as preferred?
I thought that was that option porpouse.
Cheers!

The SIM settings only allow Global, LTE/CDMA, or LTE/GSM/UMTS.
There is no CMDA/EvDo option.
Manually setting the preferred network mode to 4 should override those options and force CDMA mode, unless the system variable that determines network mode has changed with Android 12.

LG velvet 4g volte on Tmobile?

I have LG velvet 4g dual sim LM-G910EMW, is there any way to enable volte for use on t-mobile?

im having the same problem with my carrier (simple mobile). they are saying my LG Velvet 5g is not compatible with their network upgrade to VOLTE. The specs for my model, do indeed show that it is compatible. They keep trying to get me to "upgrade" to a new phone. Whats going on here?

So I followed the below directions from reddit and it worked great and I now have Volte, however phone still drops to 3g when it makes a call any thoughts on how to fix that?
There is a way to force enable VoLTE on the "LG Velvet 4G Dual Sim" specifically your version which is the "LM-G910EMW".
By default the feature is disabled on this model variant for who knows why.
Follow the steps below: 1. Click on the "Phone" app and dial "##4636##" -If done correctly it'll automatically bring you to the "testing" settings menu.
Click on "Phone Information" -you should see a list of VoLTE settings however by default they are disabled and greyed out but don't worry there's a way to reactivate VoLTE. (You Will Come Back to this Menu later)
Go to your file app and create a file named "enable_ue" -thats all you need to do just create the file, nothing more nothing less.
Go back to the "Phone" App and dial "#*462633*#910#" -This code is specific to the variant and will not work on other non LM-G910EMW Phones. Dialing this should bring up the "Hidden LG Menu"
Select Field Test>Universal Enabler>Create New Config -a menu with check boxes for VoLTE options appearing
Select the boxes as follows "VoLTE" "ViLTE" "VoWifi" "ViWifi" And finally hit "Confirm" -a prompt will appear stating "Vo Services Updated"
Immediately restart your phone to allow the settings to kick in
After your phone has restarted go into your Settings>Network & Internet>Mobile Networks -If done correctly the VoLTE option will now be unlocked and available.
Switch on the "VoLTE"
Now to double check that your phone now truly has VoLTE enabled, repeat steps 1-2. If done correctly the menu should now say "VoLTE Provisioned Video Calling Provisioned Wifi Calling Provisioned " -if these 3 are all switched on then you have successfully force enabled VoLTE on your LG Velvet 4G Dual Sim LM-G910EMW, congratulations!

Sorry I'm not so good, can you help me please regarding this:
Go to your file app and create a file named "enable_ue" -thats all you need to do just create the file, nothing more nothing less.
I would like to know how to create this file, as I think I didn't do the job so I'm block when I enter Unviersal Enabler, it say: not supported
Thanks in advance for your help

In the upper right of your file manager there should ne three dots, click on that and it will show new folder, new file, etc.
Some file managers do not have a new file option so you may have to download a different file manager. I used 3c as my file manager.

Hi,
Can you please share the path where we need to add the file name as "enable_ue" and it will be 0 byte file right?

I just added it to the main storage and yes it was 0 byte

Will this work on the 900TM variant? I used 900 instead of 910 to get the hidden menu and it came up but i can't seem to get the volte button to enable in the menus.

If you have one variant of a Qualcomm LG Velvet can you turn on VOLTE by selecting the stock firmware for a different Velvet variant? Basically I wondere if an lmg900tm can be turned into an lmg900um. [NOTE: upon further investigation, the VOLTE feature may depend more on the SIM card and not on the firmware. There is an explanation here from Quora.com:
Is VoLTE activation dependent on the SIM card or just on the device model and the operator?​
The phone has to be VoLTE compatible, that is the hardware itself must be able to handle VoLTE in terms of what it implies: band, frequencies and so on.
Then, the phone has to be provisioned to operate with VoLTE, in simple terms that means that the phone must be enabled or allowed to work with VoLTE, this is done wither by the manufacturer or by the operator. There are phones that even while they are VoLTE capable, the manufacturer of the operator won’t provision them to use VoLTE. One such case are the Google Pixel phones that are perfectly capable of VoLTE. but, if you insert a SIM card of a country where Pixels are not officially sold and supported, then Google has the phone set to disable VoLTE (and 5G as well).
Then, the SIM used in that VoLTE capable phone and VoLTE provisioned phone has to be of the right version. Some operators won’t provide VoLTE service if you don’t have a SIM with a minimum version (and thus SIM firmware and configuration).
Lastly, you have to be physically present on the network that has VoLTE capabilities. You could have all of the above, but, if you are in the middle of a desert or in the middle of the Atlantic Ocean, probably VoLTE is not going to work…and neither 4G or 5G…
Is VoLTE activation dependent on the SIM card or just on the device model and the operator?
Answer: VoLTE activation is controlled by the device depending on the SIM and network operator. Of course the phone has to be VoLTE capable in the first place. Each device has an internal database that uses one or more of the SIM files as key to retrieve various parameters about the operator own...
www.quora.com
There you have it, that is pretty much in simple terms, what is needed to enjoy VoLTE with your smartphone.