Database Users

[GUIDE][No Root][5.0][4.X] Enabling LTE Without Root

EDIT: Clearly now that there are custom ROMs, this will be less likely an issue. But @icheyne pointed out a good method that will work on most ROMs I believe, since it uses Android's default testing menu.
For those seeking a permanent solution, you WILL need root.
Currently no permanent solution on LG Stock Lollipop.
Here is some information about my situation:
-Currently on Fido Network in Canada (LTE Band 7 [2600 MHz])
-I have achieved LTE speeds of 31mbps (Down) and 25mbps (Up).
-I am rooted, but it should work without root access.
-Firmware is stock V10h-TWN-XX
-Network mode only shows GSM / WCDMA
Before you begin, this is what you need:
-An LTE micro sim.
-Do some research on which LTE bands your network uses and if your variant has the ability to use that band.
-Correct LTE APN settings for your mobile carrier. Make sure it is LTE APN, my carrier has two separate ones (Regular, LTE).
-Mobile Network does NOT have to be turned off (You can keep data on during all of this).
-With Mobile Network on, go into Settings -> About Phone -> Network and remember what is written under "Mobile network type".
-Make sure you are in a location that has decent LTE connection.
METHOD FOR LG STOCK LOLLIPOP
1) Open up your Dialer, and type in the following to enter LG's Hidden Menu: "3845*#855#" for D855 (If your model is not listed, please do Google it!)
"3845*#850#" for D850
"3845*#851#" for D851
"3845*#852#" for D852
2) Go down and select "LTE-Only" and go into "Modem Settings"
3) Now select "RAT Selection" and click on "GSM/WCDMA/LTE auto"
4) Without rebooting, the data icon switched from "H" / "3G" to "4G" for the first time (Turn on Mobile Network if you haven't already)
5) Now go into Settings -> About Phone -> Network and under "Mobile network type" it should have "LTE" instead of what you had before
Currently no permanent solution, each time you reboot, switch to 2G/3G, or go into "Mobile Networks" menu, you will lose LTE
But it's okay, redoing steps 1 to 3 will get LTE back once again. Tedious, but at least it works
--------------------------------------------------------------------------​
QUICK METHOD (Working for all Jelly Bean ROMs & some Lollipop ROMs) (Thanks to @icheyne)
1) Go into Dialer -> Dial *#*#4636#*#* -> Phone Information
2) Scroll down to "Set preferred network type:" and click on the pull-down menu
3) Select what type of setting you want, I personally keep it on "LTE/GSM/WCDMA"
4) Select "LTE-Only" and go into "Modem Settings"
5) Without rebooting, the data icon switched from "H" / "3G" to "4G" for the first time (Turn on Mobile Network if you haven't already)
6) Now go into Settings -> About Phone -> Network and under "Mobile network type" it should have "LTE" instead of what you had before
7) [ROOT][Permanent LTE] For myself, I used a root explorer (ES File Explorer) and go into "/system/app" and delete (or move) LteConfigs.apk and LteConfigs.odex. Now you should be able to go into the "Mobile network" menu and it should have the "GSM/WCDMA/LTE auto" setting. Thus making LTE a permanent option.
Those without root access will lose LTE if they restart, switch to 2G/3G, or try to go into the "Mobile network" menu.
If you have any questions, please leave a reply. Hope this helped.
If anyone who cannot get this to work, please post with your details (firmware, carrier, LTE band, etc...).

i have heard some reports that updating some settings in the hidden menu will work, but after restart, it will just go back...hmmm.. this one retains the LTE option?

Yes, after having it on for a few days, restarts, as well as going to an area of weak reception will not affect it. It will sometimes jump back to 3g in weak signal spots (underground), but after I go outside, it will switch to LTE automatically. I should probably update the title since I've learned that this applies to other models as well.
EDIT: @chacho_2me So I found out what breaks the LTE, but it's not major unless you manually switch from LTE to 2g or something like that. Step 11 should say it all, just don't go into the mobile network menu, and you should be fine.

thanks dude..currently im roaming....will try this one when im at home
thank you so much sir.. hope i could help you sometime
I really dont know why LG didnt notice not having the LTE option on othe releases
anyhow...thanks again dude

@chacho_2me Very sorry, I don't know what happened, but unfortunately restarts reverts it back to 2G/3G. But I'll look around to see what I can do to get it to retain, will most likely need root.

If it already states LTE under Settings > About Phone > Network, would you still recommend going ahead with this tweak?

@Curleyyy Are you getting LTE reception though? If you are, then you don't need to do this. This isn't really that much of a tweak, more like just some hidden settings, that's all.

If I'm not mistaken > 2G > 3G >4G > 4G LTE ?? Reception around my place is usually 3G with a bit of 4G occasionally.

@Curleyyy In terms of speed, LTE is currently the fastest. But reception wise, it might not be the best choice. If you are in an area with poor 4G/LTE reception, it is best to go with 3G connection. If you like to find out exactly which regions have 4G/LTE, I'm sure your carrier will have that information on their website.

Thank you so much
It's working fine on Fido. A heartfelt Thank you
Cheers

I found a solution that doesn't require knowledge of the network's LTE bands:
Dial *#*#4636#*#*
Click Phone Information
Scroll down the page to the GSM/WCDMA dropdown.
Select LTE/GSM/WCDMA - the data icon should switch from H or 3G to 4G.
[ROOT ONLY] Using a root file manager (ES File Explorer) go into "/system/app" and rename LteConfigs.apk and LteConfigs.odex to LteConfigs.apk.bak and LteConfigs.odex.bak
Reboot
Go to Settings -> Tethering & networks -> Mobile Networks → Network Mode and select GSM/WCDMA/LTE auto.

@icheyne I confirm that works, I will change the post.

cannot open on android L

cant opened in android L too
chacho_2me said:
cannot open on android L
Click to expand...
Click to collapse
I need to change lte band. What way i have. Secret menu ont allowed me to do it in Android 5

Oh dear, that's inconvenient. I don't have lollipop installed yet, since it's been quite busy for me and I need my phone. I will try to update the guide for Lollipop.
When I can test it personally, but for now, if you could try to surf the forums. I am short on time lately, I do apologize.

O29C said:
Oh dear, that's inconvenient. I don't have lollipop installed yet, since it's been quite busy for me and I need my phone. I will try to update the guide for Lollipop.
When I can test it personally, but for now, if you could try to surf the forums. I am short on time lately, I do apologize.
Click to expand...
Click to collapse
On mine, only the .apk file was present, not the .odex file. I have flashed a stock-based lollipop rom. I renamed the .apk file and the lte was added to the mobile networks menu, but my phone is still not connecting to lte .
It is correct, the "phone information" menu loads on lollipop, but an error message pops up overtop and you can't get to the settings due to this.
I sure hope I can get this working or I'm going to have to get a different device!

@vinistois Thank you for reminding me about this. I do apologize in advance for not keeping up with this as I am still sticking with JB for the time being. I just flashed L to try to clear things up. Are you currently rooted? And do you have the D855 model?

help needed
O29C said:
EDIT: Clearly now that there are custom ROMs, this will be less likely an issue. But @icheyne pointed out a good method that will work on most ROMs I believe, since it uses Android's default testing menu.
For those seeking a permanent solution, you WILL need root.
Currently no permanent solution on LG Stock Lollipop.
Here is some information about my situation:
-Currently on Fido Network in Canada (LTE Band 7 [2600 MHz])
-I have achieved LTE speeds of 31mbps (Down) and 25mbps (Up).
-I am rooted, but it should work without root access.
-Firmware is stock V10h-TWN-XX
-Network mode only shows GSM / WCDMA
Before you begin, this is what you need:
-An LTE micro sim.
-Do some research on which LTE bands your network uses and if your variant has the ability to use that band.
-Correct LTE APN settings for your mobile carrier. Make sure it is LTE APN, my carrier has two separate ones (Regular, LTE).
-Mobile Network does NOT have to be turned off (You can keep data on during all of this).
-With Mobile Network on, go into Settings -> About Phone -> Network and remember what is written under "Mobile network type".
-Make sure you are in a location that has decent LTE connection.
---------- Post added at 10:49 PM ---------- Previous post was at 10:41 PM ----------
O29C said:
EDIT: Clearly now that there are custom ROMs, this will be less likely an issue. But @icheyne pointed out a good method that will work on most ROMs I believe, since it uses Android's default testing menu.
For those seeking a permanent solution, you WILL need root.
Currently no permanent solution on LG Stock Lollipop.
Here is some information about my situation:
-Currently on Fido Network in Canada (LTE Band 7 [2600 MHz])
-I have achieved LTE speeds of 31mbps (Down) and 25mbps (Up).
-I am rooted, but it should work without root access.
-Firmware is stock V10h-TWN-XX
-Network mode only shows GSM / WCDMA
Before you begin, this is what you need:
-An LTE micro sim.
-Do some research on which LTE bands your network uses and if your variant has the ability to use that band.
-Correct LTE APN settings for your mobile carrier. Make sure it is LTE APN, my carrier has two separate ones (Regular, LTE).
-Mobile Network does NOT have to be turned off (You can keep data on during all of this).
-With Mobile Network on, go into Settings -> About Phone -> Network and remember what is written under "Mobile network type".
-Make sure you are in a location that has decent LTE connection.
METHOD FOR LG STOCK LOLLIPOP
1) Open up your Dialer, and type in the following to enter LG's Hidden Menu: "3845*#855#" for D855 (If your model is not listed, please do Google it!)
"3845*#850#" for D850
"3845*#851#" for D851
"3845*#852#" for D852
2) Go down and select "LTE-Only" and go into "Modem Settings"
3) Now select "RAT Selection" and click on "GSM/WCDMA/LTE auto"
4) Without rebooting, the data icon switched from "H" / "3G" to "4G" for the first time (Turn on Mobile Network if you haven't already)
5) Now go into Settings -> About Phone -> Network and under "Mobile network type" it should have "LTE" instead of what you had before
Currently no permanent solution, each time you reboot, switch to 2G/3G, or go into "Mobile Networks" menu, you will lose LTE
But it's okay, redoing steps 1 to 3 will get LTE back once again. Tedious, but at least it works
--------------------------------------------------------------------------​
QUICK METHOD (Working for all Jelly Bean ROMs & some Lollipop ROMs) (Thanks to @icheyne)
1) Go into Dialer -> Dial *#*#4636#*#* -> Phone Information
2) Scroll down to "Set preferred network type:" and click on the pull-down menu
3) Select what type of setting you want, I personally keep it on "LTE/GSM/WCDMA"
4) Select "LTE-Only" and go into "Modem Settings"
5) Without rebooting, the data icon switched from "H" / "3G" to "4G" for the first time (Turn on Mobile Network if you haven't already)
6) Now go into Settings -> About Phone -> Network and under "Mobile network type" it should have "LTE" instead of what you had before
7) [ROOT][Permanent LTE] For myself, I used a root explorer (ES File Explorer) and go into "/system/app" and delete (or move) LteConfigs.apk and LteConfigs.odex. Now you should be able to go into the "Mobile network" menu and it should have the "GSM/WCDMA/LTE auto" setting. Thus making LTE a permanent option.
Those without root access will lose LTE if they restart, switch to 2G/3G, or try to go into the "Mobile network" menu.
If you have any questions, please leave a reply. Hope this helped.
If anyone who cannot get this to work, please post with your details (firmware, carrier, LTE band, etc...).
Click to expand...
Click to collapse
Lg g3 d855.. Lte working fine using *#*#4636#*#*.. Today i upgraded to android 5.0 software.. But now *#*#4636#*#* not working on my phone... And lte is not working too..
Pls advise how to activate lte now
Click to expand...
Click to collapse

I really don't want to be condescending, but it's hard not to. Did you read the post?

O29C said:
I really don't want to be condescending, but it's hard not to. Did you read the post?
Click to expand...
Click to collapse
Lol was going to say the same
Sent from my LG-D852 using XDA Free mobile app

Enable WiFi Calling & VoLTE on T-Mobile US onOP 5 w Original OxygenOS 4.5.5 Firmware

Enable WiFi Calling & VoLTE on T-Mobile US onOP 5 w Original OxygenOS 4.5.5 Firmware
Hi Everyone,
Just wanted to let you know that I was able to enable Wi-Fi Calling and VoLTE on T-Mobile US on OP 5 with the original OxygenOS 4.5.5 firmware by doing the following:
1.) Ignore for a moment that you are already on T-Mobile. This was preselected for you automatically by the virtue of inserting a T-Mobile SIM card.
2.) Go to settings and manually search for/select mobile network. Let the phone search for a mobile network for you.
3.) You will get T-Mobile to appear but the only connection choices you will be given are 2G, 3G and 4G. There will be no choice to select 4GLTE.
4.) Ignore the fact in 3.) and proceed to select the "plain" 4G option
5.) Go back to SIM & Network Settings. The preferred network type for you will appear to be 2G/3G/4G (automatic).
6.) The WiFi Calling and VoLTE options now appear on right under the Preferred network type. Select WiFi calling/or VoLTE
7.) Switch to WiFi. You will get a notification on the top right bar that you are on WiFi/VoLTE calling.
8.) Try it out - it works
9.) Now turn off WiFi. This will switch you to your T-Mobile network.
7.) Check your notification bar on top, it will show that you are on 4G LTE.
8.) Test your 4GLTE connection speed with a program like speedtest.net.
9.) Mine was ~ 55 mbps download and 12.4 Mbps upload - definitely 4GLTE speeds.
10.) Enjoy
Dr. P

You don't need to go thru any dance on this...my phone has always done this with out changing any thing... T-Mobile in Atlanta..

On my OP 5, VoLTE and VoWifi did work instantly.

All of this was enabled without any effort for me on TMobile.
I am curious though, are you saying that 4G (by itself) is an option for you on preferred network type?

Thailand carrier "AIS" Follow step notwork!!.
Sent from my ONEPLUS A5000 using Tapatalk

Many retail/unlock mobiles have "Wifi Calling" function but not any menu entry to enable , The APP can check the hidden function and enable it if can use.
https://play.google.com/store/apps/details?id=com.widget7.wifi.calling

whelmar said:
You don't need to go thru any dance on this...my phone has always done this with out changing any thing... T-Mobile in Atlanta..
Click to expand...
Click to collapse
Agreed, was immediately able to run on both wifi and T-Mobile​ LTE once the SIM card was inserted.
Sent from my ONEPLUS A5000 using Tapatalk

I followed the steps, but VOLte and WiFi calling even is not working. Furthermore the options are not displayed.
T-Mobile Germany.
My old Samsung S7 EDGE working fine with VOLte and WiFi calling at the same SIM card.
Is there any fix for this on my OP5?

[GUIDE] (jio) Workaround for VOLTE ISSUE, SIGNAL DROP ISSUE IN MIUIPRO 7.9.xx

Great and appreciated rom "MIUIPRO 7.9.xx" by @SagarMakhar . But many people getting volte issue & call drop. Here is workaround and please guys vote the poll so I know this is working or not as it is working fine for me.
Requirements-
Root
Network signal guru (NSG) - https://play.google.com/store/apps/details?id=com.qtrun.QuickTest
Instructions-
1. Open NSG and let it configure itself and grant root access.
2. Open 3 dot menu at top left and select "lock bands".
3. Now select only band 3:1800+ only.
4. And lock it and wait for sometime your phone will be blackout.
5. Power on and select "4g only" for Jio sim 1 in network types from settings.
Note - Don't interrupt the process while locking bands your phone will be automatically goes power off within 2minutes.
Default band for jio - band 3,5,40 ... Lock these 3 bands or all bands to get default.
Profit and volte issue solved.
Disadvantage-
Net Speed may vary upto 14mbps+. But still you can manage to get 1mbps download speed.
Vote and press thanks button...

veer.killerboy said:
Great and appreciated rom "MIUIPRO 7.9.xx" by @SagarMakhar . But many people getting volte issue & call drop. Here is workaround and please guys vote the poll so I know this is working or not as it is working fine for me.
Requirements-
Root
Network signal guru (NSG) - https://play.google.com/store/apps/details?id=com.qtrun.QuickTest
Instructions-
1. Open NSG and let it configure itself and grant root access.
2. Open 3 dot menu at top left and select "lock bands".
3. Now select only band 3:1800+ and 5:850 band.
4. And lock it and wait for sometime your phone will be blackout.
5. Power on and select "4g only" for Jio sim 1 in network types from settings.
Profit and volte issue solved.
Disadvantage-
Net Speed may vary upto 14mbps+.
Vote and press thanks button...
Click to expand...
Click to collapse
Will it stay if I unroot my mobile later?

veer.killerboy said:
Great and appreciated rom "MIUIPRO 7.9.xx" by @SagarMakhar . But many people getting volte issue & call drop. Here is workaround and please guys vote the poll so I know this is working or not as it is working fine for me.
Requirements-
Root
Network signal guru (NSG) - https://play.google.com/store/apps/details?id=com.qtrun.QuickTest
Instructions-
1. Open NSG and let it configure itself and grant root access.
2. Open 3 dot menu at top left and select "lock bands".
3. Now select only band 3:1800+ and 5:850 band.
4. And lock it and wait for sometime your phone will be blackout.
5. Power on and select "4g only" for Jio sim 1 in network types from settings.
Profit and volte issue solved.
Disadvantage-
Net Speed may vary upto 14mbps+.
Vote and press thanks button...
Click to expand...
Click to collapse
What is the status of SMS from JIO?

First thing is Jio is 4g only, whatever solution provided by you will not solve network drop because lock bend is not solve ROM issue. So provided solution will not work for MIUI PRO, I am using network signal guru from long time to lock band base on area and signal strength to get maximum speed when network signal is low

sahil.kalka said:
What is the status of SMS from JIO?
Click to expand...
Click to collapse
Negative sir...

guju83 said:
First thing is Jio is 4g only, whatever solution provided by you will not solve network drop because lock bend is not solve ROM issue. So provided solution will not work for MIUI PRO, I am using network signal guru from long time to lock band base on area and signal strength to get maximum speed when network signal is low
Click to expand...
Click to collapse
Lol.. listen man . This works for me so i share here... And seriously I didn't face any signal drop issue in miuipro 9.7.14 .. atleast give it a try.. may be it will work...

ashwani.shakya said:
Will it stay if I unroot my mobile later?
Click to expand...
Click to collapse
It will permanently lock band it doesn't matter you will unroot or even change rom or upgrade to newer Android. To change band lock you need NSG again...

veer.killerboy said:
It will permanently lock band it doesn't matter you will unroot or even change rom or upgrade to newer Android. To change band lock you need NSG again...
Click to expand...
Click to collapse
I seriously want to try this...but I fear slow internet speed.?

ashwani.shakya said:
I seriously want to try this...but I fear slow internet speed.?
Click to expand...
Click to collapse
Yeah . "May" be it could decrease....

No band 40 mean super slow network

edan lkr said:
No band 40 mean super slow network
Click to expand...
Click to collapse
Whatsoever band40 making jio volte crazy. Stay on band3.

veer.killerboy said:
Whatsoever band40 making jio volte crazy. Stay on band3.
Click to expand...
Click to collapse
Jio offers 50mbps in band 40, 18mbps in band 3 & 5 ...for Better speed: 2300Mhz > 1800Mhz band 40 And for Better coverage: 850Mhz > 1800Mhz > 2300 Mhz band 3&5

edan lkr said:
Jio offers 50mbps in band 40, 18mbps in band 3 & 5 ...for Better speed: 2300Mhz > 1800Mhz band 40 And for Better coverage: 850Mhz > 1800Mhz > 2300 Mhz band 3&5
Click to expand...
Click to collapse
Did you copied that from my another thread???

veer.killerboy said:
Did you copied that from my another thread???
Click to expand...
Click to collapse
Whatever...

edan lkr said:
Whatever...
Click to expand...
Click to collapse
Haha

whenever i am trying for a video call. network goes off and call drops automatically. by the way i followed your instructions

Kumarvicky12 said:
whenever i am trying for a video call. network goes off and call drops automatically. by the way i followed your instructions
Click to expand...
Click to collapse
I don't know what band is suitable for video call. Please confirm that another caller has miui too supporting video call. I Don't know whether miui video call supported by other ui. Try to call who have redmi phones.

veer.killerboy said:
I don't know what band is suitable for video call. Please confirm that another caller has miui too supporting video call. I Don't know whether miui video call supported by other ui. Try to call who have redmi phones.
Click to expand...
Click to collapse
yes my wife's redmi 3s prime is supporting video calls fully. no call drop nothing..

Kumarvicky12 said:
yes my wife's redmi 3s prime is supporting video calls fully. no call drop nothing..
Click to expand...
Click to collapse
Did you tried to do video call from other network i.e airtel, voda, etc???

Nokia 6 network selection.

I am using nokia 6 since 3 months. I failed to find network option where i can select 3g only or 4g only network. At my home location network switches every minute, m unable use data, this is annoying. M using idea n airtel on dual sim.
My other phone Xperia Z1 is having that option to select 3g only network... Where it wont loose connectivity.
To post this issue, i switched network twice. Pls help.

karanrk007 said:
I am using nokia 6 since 3 months. I failed to find network option where i can select 3g only or 4g only network. At my home location network switches every minute, m unable use data, this is annoying. M using idea n airtel on dual sim.
My other phone Xperia Z1 is having that option to select 3g only network... Where it wont loose connectivity.
To post this issue, i switched network twice. Pls help.
Click to expand...
Click to collapse
Er, have you tried going to Settings > More > Mobile network > Preferred network type?

crystal_ball said:
Er, have you tried going to Settings > More > Mobile network > Preferred network type?
Click to expand...
Click to collapse
i did that way, but this wont keep network in same mode for longer. my problem is network keep on changing from 3G to 4G, 4G to 2G. my other phone shows these options on phone. m seeking if same will available on Nokia 6View attachment 4319411

karanrk007 said:
i did that way, but this wont keep network in same mode for longer. my problem is network keep on changing from 3G to 4G, 4G to 2G. my other phone shows these options on phone. m seeking if same will available on Nokia 6
Click to expand...
Click to collapse
Try dialling *#*#4636#*#* and select the first entry (Telephone information). You can set your preferred network type there. On my phone there are a lot of options to choose from, including LTE only, WCDMA only, etc.

crystal_ball said:
Try dialling *#*#4636#*#* and select the first entry (Telephone information). You can set your preferred network type there. On my phone there are a lot of options to choose from, including LTE only, WCDMA only, etc.
Click to expand...
Click to collapse
No use....

crystal_ball said:
Try dialling *#*#4636#*#* and select the first entry (Telephone information). You can set your preferred network type there. On my phone there are a lot of options to choose from, including LTE only, WCDMA only, etc.
Click to expand...
Click to collapse
this code dosent work at all, i tired resterting phone 4-5 times. it shows nothing.
i googled codes as well, other codes working but this codes show nothing.

Pls help anyone... Network sucks here.....

I also feels this problem. When I watching youtube The connection is off for 5 seconds after that it's connecting again same problem. But now I just used the *#*#4636#*#* and I selected LTE/wcdma and I think now my problem was solved thanks

Nokia 6 4G 3G & 2G settings
For Nokia 6.
You can change network in simple 4 steps
1) Simply go to settings then press
2) "Network & Internet" then press
3) "Mobile network" then press option
4) "Advance" here you find three options
"4G (recommended)"
"3G"
"2G"
and Slect the network you want
Thanks

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.