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so i installed TWRP on mu unlocked and S-OFF phone, and rooted the phone. then from the recovery, i made a nandroid backup, wiped the phone, and installed this ROM. even though all traces of Verizon software is now wiped off the phone (i hope!), it still only connects when the Verizon SIM card is in (and it shows the Roaming sign; fyi, i am in Canada now). it won't give me a voice nor a data connection with my Telus SIM card nor with my Rogers SIM card. so, i went into recovery, wiped cache, and afterwards, the phone was stuck in the boot...i had to go to recovery again, wipe everything, and restore my nandroid backup. the phone is now back to stock Verizon software, and it still only connects when the Verizon SIM card is in. it should at least give me voice connection with the Telus or Rogers SIM card, but it won't. something must have happened to the radio when i flashed the ROM, and i can't figure it out.
do you guys have any troubleshooting ideas? can anybody guide me towards a fix/troubleshooting method? i'd appreciate any help...
darxider said:
so i installed TWRP on mu unlocked and S-OFF phone, and rooted the phone. then from the recovery, i made a nandroid backup, wiped the phone, and installed this ROM. even though all traces of Verizon software is now wiped off the phone (i hope!), it still only connects when the Verizon SIM card is in (and it shows the Roaming sign; fyi, i am in Canada now). it won't give me a voice nor a data connection with my Telus SIM card nor with my Rogers SIM card. so, i went into recovery, wiped cache, and afterwards, the phone was stuck in the boot...i had to go to recovery again, wipe everything, and restore my nandroid backup. the phone is now back to stock Verizon software, and it still only connects when the Verizon SIM card is in. it should at least give me voice connection with the Telus or Rogers SIM card, but it won't. something must have happened to the radio when i flashed the ROM, and i can't figure it out.
do you guys have any troubleshooting ideas? can anybody guide me towards a fix/troubleshooting method? i'd appreciate any help...
Click to expand...
Click to collapse
This ROM is still very early and has some bugs. Making it work for people not using it on Verizon isn't a concern of Santods at the moment. Switch to something that does work for you until he gets the rom further along.
darxider said:
so i installed TWRP on mu unlocked and S-OFF phone, and rooted the phone. then from the recovery, i made a nandroid backup, wiped the phone, and installed this ROM. even though all traces of Verizon software is now wiped off the phone (i hope!), it still only connects when the Verizon SIM card is in (and it shows the Roaming sign; fyi, i am in Canada now). it won't give me a voice nor a data connection with my Telus SIM card nor with my Rogers SIM card. so, i went into recovery, wiped cache, and afterwards, the phone was stuck in the boot...i had to go to recovery again, wipe everything, and restore my nandroid backup. the phone is now back to stock Verizon software, and it still only connects when the Verizon SIM card is in. it should at least give me voice connection with the Telus or Rogers SIM card, but it won't. something must have happened to the radio when i flashed the ROM, and i can't figure it out.
do you guys have any troubleshooting ideas? can anybody guide me towards a fix/troubleshooting method? i'd appreciate any help...
Click to expand...
Click to collapse
Cm has apn support for other carriers.
dottat said:
Cm has apn support for other carriers.
Click to expand...
Click to collapse
thank you all for your help. it's not just APN though; with that ROM, i cannot even have a voice connection, let alone data. and even though i restored my stock backup (and now running the original ROM that came with the phone), the voice still doesn't work; it only functions with a Verizon SIM card.
darxider said:
thank you all for your help. it's not just APN though; with that ROM, i cannot even have a voice connection, let alone data. and even though i restored my stock backup (and now running the original ROM that came with the phone), the voice still doesn't work; it only functions with a Verizon SIM card.
Click to expand...
Click to collapse
Well.. when you were on cm you couldn't get any service? Is your carrier lte/cdma or gsm based? Are you showing global mode when on cm? It also can be a case where some qpst work needs done to enable the extra radio bands needed to pickup your carrier.
dottat said:
Well.. when you were on cm you couldn't get any service? Is your carrier lte/cdma or gsm based? Are you showing global mode when on cm? It also can be a case where some qpst work needs done to enable the extra radio bands needed to pickup your carrier.
Click to expand...
Click to collapse
i'm guessing by CM you mean CyanogenMod, right? if so, i was never on CM. i was using the stock ROM (4.4.3, Sense 6.0, Verizon bloatware), and then i flashed the Lollipop ROM by santod. the phone initially could connect to Rogers and i had voice and very slow (i.e., EDGE) data speeds, but after flashing the ROM, my phone lost the ability to provide any sort of voice connection except when i'm using my old Verizon SIM card (that shows the Roaming icon, because i'm in Canada now).
i could try CM, if you think it has less possible bugs. do you suggest i do a factory reset while on stock ROM and then flash CM?
darxider said:
i'm guessing by CM you mean CyanogenMod, right? if so, i was never on CM. i was using the stock ROM (4.4.3, Sense 6.0, Verizon bloatware), and then i flashed the Lollipop ROM by santod. the phone initially could connect to Rogers and i had voice and very slow (i.e., EDGE) data speeds, but after flashing the ROM, my phone lost the ability to provide any sort of voice connection except when i'm using my old Verizon SIM card (that shows the Roaming icon, because i'm in Canada now).
i could try CM, if you think it has less possible bugs. do you suggest i do a factory reset while on stock ROM and then flash CM?
Click to expand...
Click to collapse
Yes. Factory reset on stock recovery. Then flash twrp and sideload the latest cm build. I would probably stay with cm11 for now too.
dottat said:
Yes. Factory reset on stock recovery. Then flash twrp and sideload the latest cm build. I would probably stay with cm11 for now too.
Click to expand...
Click to collapse
yeah, sure. i have flashed MDMower TWRP 2.8.1.1; do you suggest i use 2.7.1.2? also, what do you exactly mean by "sideload"? i'm just a newbie; this is my first ROM flash experience. thank you
darxider said:
yeah, sure. i have flashed MDMower TWRP 2.8.1.1; do you suggest i use 2.7.1.2? also, what do you exactly mean by "sideload"? i'm just a newbie; this is my first ROM flash experience. thank you
Click to expand...
Click to collapse
Well you can do a factory reset on stock Rom and let it boot up and then copy cm over to phone storage for flashing.....or...adb sideload.
When you boot into twrp under the advanced options there's an adb sideload feature. Once the phone is in this mode you can use you pc to send a Rom over using the command "adb sideload nameofROM.zip". Your pc will send the Rom over and the phone will flash it once it's copied over.
Backup the internal sd card of your phone before you factory reset. I've forgotten so many times it isn't funny.
dottat said:
Well you can do a factory reset on stock Rom and let it boot up and then copy cm over to phone storage for flashing.....or...adb sideload.
When you boot into twrp under the advanced options there's an adb sideload feature. Once the phone is in this mode you can use you pc to send a Rom over using the command "adb sideload nameofROM.zip". Your pc will send the Rom over and the phone will flash it once it's copied over.
Click to expand...
Click to collapse
ok, i did all that with MDMower TWRM 2.7.1.2 this time. CM11 is up and running now, but i still have the same issue. my Telus and Rogers SIM cards lead to a "No Service" icon, whereas my old Verizon SIM gives the Roaming indicator. funny thing is that with all three SIM cards, the correct set of APNs is loaded by default when i boot the phone, but selecting those APNs don't change anything. i also tried Global, GSM only, WDCMA preferred, and some combinations of those modes to no avail (the only SIM that leads to service is Verizon's). it seems like the phone is hard-coded for that particular SIM card, no matter what.
any other ideas? could the radio have become corrupted somehow during unlocking/S-OFF'ing/flashing? if so, what is a workaround for this?
darxider said:
ok, i did all that with MDMower TWRM 2.7.1.2 this time. CM11 is up and running now, but i still have the same issue. my Telus and Rogers SIM cards lead to a "No Service" icon, whereas my old Verizon SIM gives the Roaming indicator. funny thing is that with all three SIM cards, the correct set of APNs is loaded by default when i boot the phone, but selecting those APNs don't change anything. i also tried Global, GSM only, WDCMA preferred, and some combinations of those modes to no avail (the only SIM that leads to service is Verizon's). it seems like the phone is hard-coded for that particular SIM card, no matter what.
any other ideas? could the radio have become corrupted somehow during unlocking/S-OFF'ing/flashing? if so, what is a workaround for this?
Click to expand...
Click to collapse
I would bet they are using a frequency that's not currently unlocked on your radio. There is a lengthy how to posted on Google about how to enable Qualcomm radio bands.
dottat said:
I would bet they are using a frequency that's not currently unlocked on your radio. There is a lengthy how to posted on Google about how to enable Qualcomm radio bands.
Click to expand...
Click to collapse
aha, great! i know that Verizon HTC One M7 uses
CDMA 800/1900 MHz
GSM/GPRS/EDGE 850/900/1800/1900MHz
UMTS/HSPA 1900/2100MHz
LTE 700MHz (Band 13)
according to this Wikipedia page, Telus has a HSPA+ network on 850/1900 MHz (so at least the 1900 Mhz band should give me something, shouldn't it?), it has CDMA service that's supposed to shut down completely in 2015 (it is out of service in some places in Canada, but i'm not sure about my area), but has no GSM service at all.
thanks for the tip about enabling radio bands; i'll search for it...
Hello guys.
After a couple of days reading on the internet without success I decided to share my problem here.
I bought a LG g3 D850 32 gb on eBay, once I received it I was so happy enjoying the 4g LTE network, the speed was amazing.
Regrettably, one day all this happiness disappeared, now I only have Edge connection, I don't have 3g, hsdpa or 4g, I only get the awful Edge.
I have tried using my sim card on other phone and I get 3g and hsdpa (that phone does not have 4g) so the problem is on the G3.
I have to say that I have the phone with the stock rom and the only change I've done was to root it with kingroot and deleted (disable) some at&t apps. I thought this was the problem so I restored to factory defaults but the problem did not disappear.
I was thinking in to return the phone but I am in Chile so is a little hard.
I will be grateful if some one could help me with this issue.
I will be waiting for your comments
Thanks on advance
:crying:
What model number/version/baseband/etc.
What's your base network and are you sure your APN settings are correct?
nickf4rr said:
What model number/version/baseband/etc.
What's your base network and are you sure your APN settings are correct?
Click to expand...
Click to collapse
Hi Nick,
This is the Software info:
Android Version: 5.0.1
Baseband Version: MPSS.DI.2.0.1.c1.13-00058-M8974AAAAANPZM-1
Kernel Version: 3.4.0
Build Number: LRX21Y
Software Version: D85021r
Security Software Version: MDF v1.1 Release 3
I do not understand what the base network is. Is my cellullar provider?
The APN settings are OK. I didn't change anything.
I had all the connections and suddenly I lost 3 and 4 g and only get Edge.
I didn't change anything. I rooted the phone with KingRoot but I am not sure if the problem started in that moment.
I have made the Factory Data Reset a couple of times and the problem continues.
My Sim Card works fine in other cell phone.
Please Help!!!!
Oyopio said:
Hi Nick,
This is the Software info:
Android Version: 5.0.1
Baseband Version: MPSS.DI.2.0.1.c1.13-00058-M8974AAAAANPZM-1
Kernel Version: 3.4.0
Build Number: LRX21Y
Software Version: D85021r
Security Software Version: MDF v1.1 Release 3
I do not understand what the base network is. Is my cellullar provider?
The APN settings are OK. I didn't change anything.
I had all the connections and suddenly I lost 3 and 4 g and only get Edge.
I didn't change anything. I rooted the phone with KingRoot but I am not sure if the problem started in that moment.
I have made the Factory Data Reset a couple of times and the problem continues.
My Sim Card works fine in other cell phone.
Please Help!!!!
Click to expand...
Click to collapse
I had the same problem when I switched the operator. Went there and the man there tried everything but nothing helped. Last thing he suggested was to do a software update, did it an 4G speed came back
jeanette1986 said:
I had the same problem when I switched the operator. Went there and the man there tried everything but nothing helped. Last thing he suggested was to do a software update, did it an 4G speed came back
Click to expand...
Click to collapse
I am waiting for Marshmallow update, I hope not to kill my self while I am waiting
I think I will try changing the ROM.
But is so weird the problem because I had 4g and I did't change anything :crying:
I do not understand what the base network is. Is my cellullar provider?
Click to expand...
Click to collapse
Yes, your cellular provider. What's your cellular provider and what's your APN? Is your sim from AT&T, a foreign provider or from a Chilean network? Does the APN match the SIM provider's APN?
I'm thinking that it's either an APN problem or a band switching problem (since you disabled some AT&T apps) or you just ran through your allotment of 4G data under your contract.
If you've tried your SIM very recently in a friend's phone and it works just fine, then it's probably not a data allotment problem.
nickf4rr said:
Yes, your cellular provider. What's your cellular provider and what's your APN? Is your sim from AT&T, a foreign provider or from a Chilean network? Does the APN match the SIM provider's APN?
I'm thinking that it's either an APN problem or a band switching problem (since you disabled some AT&T apps) or you just ran through your allotment of 4G data under your contract.
If you've tried your SIM very recently in a friend's phone and it works just fine, then it's probably not a data allotment problem.
Click to expand...
Click to collapse
I am using a chilean provider with the correct APN, the same I used from the first day when 4g were working fine and the same.
Yesterday I tried mi sim card in other cellphone and I got 4g without problem. I checked the apn and they was the same.
Now I tried with tho different ROMs, I changed the kernel and the modem and I'm still get only EDGE :crying::crying:
I do not know what to do. I think the cellphone is bad
I'm guessing that you may have disabled something when you were deleting the AT&T bloatware. You've got a D850, right?
As @trickie69r has mentioned in a previous thread, try downloading your KDZ direcly from LG's Servers using: http://csmg.lgmobile.com:9002/csmg/b...XXXXXXXXXXXXXX
(Replace XXXXXXXXXXXXXXXXX with your own IMEI, which can be found by dialing *#06* in Dialer)
Take a screenshot of your About Phone > Software Info tab before and after and see if anything changes.
Buena suerte!
nickf4rr said:
I'm guessing that you may have disabled something when you were deleting the AT&T bloatware. You've got a D850, right?
As @trickie69r has mentioned in a previous thread, try downloading your KDZ direcly from LG's Servers using: http://csmg.lgmobile.com:9002/csmg/b...XXXXXXXXXXXXXX
(Replace XXXXXXXXXXXXXXXXX with your own IMEI, which can be found by dialing *#06* in Dialer)
Take a screenshot of your About Phone > Software Info tab before and after and see if anything changes.
Buena suerte!
Click to expand...
Click to collapse
Thank you Nick.
I have flashed some Roms, and the problem did not solve.
I have tried to download the stock rom but I can't download it from the link you send me. I can't find D850 stock rom.
Do you have other link to get it?
Oyopio said:
Thank you Nick.
I have flashed some Roms, and the problem did not solve.
I have tried to download the stock rom but I can't download it from the link you send me. I can't find D850 stock rom.
Do you have other link to get it?
Click to expand...
Click to collapse
Did you try using the ROM in this thread, or just installing the AT&T apps to see if those worked?
nickf4rr said:
Did you try using the ROM in this thread, or just installing the AT&T apps to see if those worked?
Click to expand...
Click to collapse
Yes I tried that rom and stock kit kat and nothing works.
I think the cell phone is defective because I have other LG g3 and works fine
I got Verizon Note 4.
Verified that it is unlocked. Not stolen. No contract binded from Verizon store and through phone (Clean phone)
Android Version : 5.0.1
Location: Las Vegas
Insert AT&T sim card. No signal.
Change APN setting following the information on AT&T website. Still not working. No signal.
At&t store rep. said I need to l unlock the phone ( I already check with Verizon via phone and store)
Verizon rep. on phone said: I should be able to use the phone with At&t sim card
Verizon Rep. in store said : Galaxy note 4 won't work on AT&T. It needs to be rooted by an expert. Only Galaxy S5 or later version will work.
I searched websites and many say that they are using Verizon Note 4 on AT&T network (At&t sim card)
I just need to use phone and text message. No data needed.
Anybody can help me?
I was able to use SIM from AT&T before yesterday, but after trying to update the firmware using Software Upgrade Assistant tool on Windows 10, it's now stuck at 'searching for service'.
Did you change the network settings from global to lte/GSM?
I am reading this. Maybe a solution.
Did you try to insert a different carrier sim card and entering the unlock code?
---------- Post added at 09:27 PM ---------- Previous post was at 09:24 PM ----------
After reading post i see you have a att sim sim on verizon phone. This could be a problem as verizon and att dont play nice. Stupid question is did you actually pay for service?
cozmohoot said:
Did you change the network settings from global to lte/GSM?
Click to expand...
Click to collapse
I did. Not working
It is not working. No verizon sim card message is gone but still no signal.
sam369 said:
I am reading this. Maybe a solution.
Click to expand...
Click to collapse
Yes I did. Not working
cozmohoot said:
Did you change the network settings from global to lte/GSM?
Click to expand...
Click to collapse
dayse said:
It is not working. No verizon sim card message is gone but still no signal.
Click to expand...
Click to collapse
Yeah. Me either.
Did you do a factory reset after software update. Usually helps. Also mess with APN settings. Reboot after changing APN.
Problem solved.
Changing APN settings and reboot did not work. I just inserted the Verizon SIM came with the phone and made a phone call. Of course it's not activated, so I hang up when it reached Verizon automated system. Guess what, now SIM from Lycomobile works. H2O Wireless SIM also works. It means that it now can work with AT&T and T-Mobile network.
sam369 said:
Problem solved.
Changing APN settings and reboot did not work. I just inserted the Verizon SIM came with the phone and made a phone call. Of course it's not activated, so I hang up when it reached Verizon automated system. Guess what, now SIM from Lycomobile works. H2O Wireless SIM also works. It means that it now can work with AT&T and T-Mobile network.
Click to expand...
Click to collapse
I'm in a similar boat as you (4.4.4 on Cricket Wireless, wanting to upgrade to 5.1.1). I just want to make sure I understand what you did to restore service:
1. You had phone working on AT&T with an older Android version (KK?)
2. You upgraded to a newer version via the Verizon upgrade tool (I assume 5.0.1 since 5.1.1 is not yet available via the tool)
3. You lost AT&T service after upgrade
4. You were able to restore AT&T service by using an inactive Verizon SIM and making a phone call
Is this correct? TIA
ftkftw said:
I'm in a similar boat as you (4.4.4 on Cricket Wireless, wanting to upgrade to 5.1.1). I just want to make sure I understand what you did to restore service:
1. You had phone working on AT&T with an older Android version (KK?)
2. You upgraded to a newer version via the Verizon upgrade tool (I assume 5.0.1 since 5.1.1 is not yet available via the tool)
3. You lost AT&T service after upgrade
4. You were able to restore AT&T service by using an inactive Verizon SIM and making a phone call
Is this correct? TIA
Click to expand...
Click to collapse
Mostly, except that I tried to upgrade from 5.0.1 to 5.1.1, but found that 5.1.1 was not yet available via the tool, but the process of installing the software on windows 10 and maybe I also used the Verizon SIM during the process which might have messed something up. I updated the firmware to 5.1.1 by downloading the zip file in a thread here and flashed it through recovery. The network connection problem was then solved by making a phone call with the SIM came with the phone.
sam369 said:
Mostly, except that I tried to upgrade from 5.0.1 to 5.1.1, but found that 5.1.1 was not yet available via the tool, but the process of installing the software on windows 10 and maybe I also used the Verizon SIM during the process which might have messed something up. I updated the firmware to 5.1.1 by downloading the zip file in a thread here and flashed it through recovery. The network connection problem was then solved by making a phone call with the SIM came with the phone.
Click to expand...
Click to collapse
I just updated via the Verizon tool (BPA1 finally showed up) and it was, surprisingly, perfectly fine. I first backed up as much as I can (via Smart Switch and Helium app), then pulled my mSD card, left my SIM card in the phone, and proceeded to update. After the first boot stuff (app optimization, etc.) I soon saw the AT&T sign in the notification bar, and I was able to make a phone call without doing anything else. With all the reports of SIM card locking after updating I was worried that I might run into the same issue, but was pleasantly surprised that I didn't. I had to re-enter the APN setting as the upgrade seemed to have removed it, but after re-adding Cricket's APN I was able to get cellular data as well.
Thanks again for your help
You need to access the hidden menu and change your radio and modem protocols. There's a forum on XDA called domestic and internation sim or network unlock for spring but should work the same on verizon
fyi, i got my note 4 working on gsm using 2 different freedompop sims-the at&t lte sim gets lte via band 4.
the global sim based on t-mobile did get hpsda+
just change the apn
My friend brought an original refurbish Samsung N910v android version 5.01 which was working with GSM 2G if not 3G until when I tried to update to new version android v6.0.1. In the menu>setting>about when I checked first before anything it showed me N910 F v5.01 but in boot mode Odin it was N910v.The problem started when I just typed *#9090# the phone immediately started reboot loop. I have managed to unlock the boot loader and root the phone installed custom rom version 6.0.1 by Paul Pizz rom VRU2CPJ2.r-1 but still can not have 2G or 3G GSM network. Please help to revive the phone again whether it meant to go back to 5.0.1 that would work with gsm cause am full stack now.
Have you checked to ensure you have the APN information in place? I have a Galaxy Note 4 N910V now (just got it a few days ago) and when I put my T-Mobile SIM in it from the very first time I have to manually put in the APN data - on custom ROMs it's usually picked up and there automagically but not always so, my suggestion is that you check to make sure your APN information is currently there as it should be.
Settings - More - Cellular networks - Access Point Names - make sure the one you need to be using is selected and if it's not then you'll have to put that info in manually and save it.
As for the actual model number, take the battery out and see what the model number is on the sticker in the battery compartment area - if the sticker isn't there then it could be a device that someone has done some experimenting with because that info can be changed. The sticker should be there, of course, but sometimes people take 'em out when they're mucking around with stuff, who knows.
Initially the phone is from Verizon but was working on 2G ,3G GSM network with N910F firmware version 5.0.1.it was working on airtel network until when I wanted to update. May I have the Apn settings,please
gruka said:
Initially the phone is from Verizon but was working on 2G ,3G GSM network with N910F firmware version 5.0.1.it was working on airtel network until when I wanted to update. May I have the Apn settings,please
Click to expand...
Click to collapse
The APN will be your network. Are trying to use Verizon? If so, you should have a spot to tic the VZWINTERNET. If not, then you have a sim card issue.
ziggy the how do i sort out the sim card issue ,Since phone says this sim card is not from verizon
gruka said:
ziggy the how do i sort out the sim card issue ,Since phone says this sim card is not from verizon
Click to expand...
Click to collapse
Is the sim from verizon? If you have a good account go to a corporate store and have them give you a new one. It's free.
Also, what are your APN settings and I will compare to mine. Everything works on mine.
the fone I have came from china ,am in Africa and remember I told you it was working woth N910f firmware version 5.0.1.All am asking is there anyway I could make this fone work again on Gsm network, cause all it says after re flash is the card is not from verizon
I now rooted this n910v android version 5.1.1 still no network, am in Africa where there is 2G&3G GSM network, how would I make this fone to work again with the gsm network now that I rooted. On the network bar I get a circle with a cross ,how to make this work
gruka said:
I now rooted this n910v android version 5.1.1 still no network, am in Africa where there is 2G&3G GSM network, how would I make this fone to work again with the gsm network now that I rooted. On the network bar I get a circle with a cross ,how to make this work
Click to expand...
Click to collapse
https://www.androidfilehost.com/?fid=457095661767122226
- N910VVRU2CPJ2_FullFirmware_NoAboot<--- Full Framework with no aboot so you will not re-lock bootloader, but will unroot and restore back to 100% stock. once your on the full stock check if your connections are working fine, if they are then install custom rom, otherwise change the sim card
go in settings, connections and select network mode to global, should be fine
Ht c 10
Sprint
Unlocked
S-On
When i purchased this phone it was running Viper nougat rom with functional LTE
I updated to oreo firmware and lte gone. It would only show 3g where as i am in full lte coverage zone
I flashed different oreo and pie roms but fruitless
I tried to fix by erasing modemst1 and 2 but it always give error of 35 partition
Today i downgraded to Nougat and erase persist but it is still same
i can only get 3g no 4g or lte
I tried network reset by ##72786# but it eventually sim locked my phone and i had to unlock it manually
Any suggestion or possible fix
Thanks in advance
did you find the answer?
I have also lost connection. Except mine is both 3G and 4G. Oddly I can still call, text, use wifi and putting the sim in my other phone works just fine. I have no clue what's wrong. I've tried everything at this point.
Here's a link to my thread if you wish to follow any solutions provided if someone comments.
https://forum.xda-developers.com/htc-10/help/internet-connectivity-htc-10-please-help-t3946949
It had same situation but eventually I solved it. Now LTE is working. First of all, need to be S-OFF and then after unlocking SIM, you can install any firmware with any ROM that supports the encryption...Either US unlocked or UK International Roms will fix the LTE issue. One thing to notice: you must keep the data partition unformatted for keeping the SIM lock status and need to use SPRINT or VERIZON radio. I am using stock Oreo from with Verizon radio + Magisk.
In addition, I unlocked LTE bands as well with DFS Qualcomm tool