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I just purchased 2 moto g4 (amazon prime edition ) phones. Both were successfully activated on verizon using sim cards from the phones they were replacing. Voice mail is not working on either phone. If i dial*86 I get a message that i do not have permission to use thus service . If I call the phone it just rings and never goes to voicemail. Has anyone else had this problem? Any suggestions for fixing it? Thanks!
I'm able to access my Verizon voicemail fine on both VoLTE and CDMA. Phone app (bottom-left corner) > keypad (bottom-middle) > press and hold 1
In my case, downloading the 'my verizon' app after vvm seemed to make it work (connect to voicemai). The only other thing I did at the same time was to change the network setting from global to cdma/4g lte.
I just switched from ATT to Tmobile. Currently I have the OnePlus 5 but I am looking for a phone for my wife. I bought her the Samsung S8 as a surprised for her but she does not like the shape of it. It is too skiny compared to her Note 5. The Note 8 would be the perfect phone for her but I am not spending $1,000 on a phone for her to go on facebook and read the new. I am looking at the LG G6, the unlock US997 model from bhphoto. Right now the have it for $450 unlocked. Since witched from ATT, Tmobile has been great except my house which has very poor reception. I know the tmobile version of the G6 supports wifi calling but does the unlock US997 support it? I tried to research it but I didn't get an answer. The closest was, the Unlock version is the same with some restricted service.
So does anyone have the LG G6 US997 on the tmobile network and does it support wifi calling?
Recently reordered the G6 from BandH for $450 and I'm happy to inform you that both VoLTE and VoWifi do work on T-Mobile. I'm receiving my unit on Friday so I'll check on Visual Voicemail but I do recall having VoLTE and VoWifi working out of the box.
wifi calling
gcd23 said:
Recently reordered the G6 from BandH for $450 and I'm happy to inform you that both VoLTE and VoWifi do work on T-Mobile. I'm receiving my unit on Friday so I'll check on Visual Voicemail but I do recall having VoLTE and VoWifi working out of the box.
Click to expand...
Click to collapse
wondering if you have an update on this? am interested in the unlocked variant of this phone but need the wifi calling. Have you received your unlocked G6? can you confirm that the wifi calling works? Thanks!
Does B&H sell US997 support unlock the bootloader，Can you check it for me
---------- Post added at 06:26 AM ---------- Previous post was at 06:22 AM ----------
gcd23 said:
Recently reordered the G6 from BandH for $450 and I'm happy to inform you that both VoLTE and VoWifi do work on T-Mobile. I'm receiving my unit on Friday so I'll check on Visual Voicemail but I do recall having VoLTE and VoWifi working out of the box.
Click to expand...
Click to collapse
Does B&H sell US997 support unlock the bootloader，Can you check it for me
US997
gcd23 said:
Recently reordered the G6 from BandH for $450 and I'm happy to inform you that both VoLTE and VoWifi do work on T-Mobile. I'm receiving my unit on Friday so I'll check on Visual Voicemail but I do recall having VoLTE and VoWifi working out of the box.
Click to expand...
Click to collapse
US997 absolutely does NOT have Wi-Fi calling - Volte yes, but I guess (if you ever received phone) you have by now figured out that point. Lucky you, B&H will take it back with first 4 weeks...
I did have wifi calling enabled as well as VoLTE on my unlocked G6. I'm not sure why you don't have that option but I did.
Wifi Texting?
I have the US997 unlocked model (not us cellular) on T-Mobile. Wifi Calling works no problem.
However, using the LG messages app, it won't let me text unless I have service. Anyone else run have that issue?
I installed Google Messages, which does let me text via Wifi. I'd rather stick with LG messages as it has a dark theme, which I like better.
I have the same phone using on T-Mobile but I don't have WiFi calling
lemmyslender said:
I have the US997 unlocked model (not us cellular) on T-Mobile. Wifi Calling works no problem.
However, using the LG messages app, it won't let me text unless I have service. Anyone else run have that issue?
I installed Google Messages, which does let me text via Wifi. I'd rather stick with LG messages as it has a dark theme, which I like better.
Click to expand...
Click to collapse
I have the same phone from sprint got it unlocked to use on T-Mobile but don't have Wi-Fi calling or even good service or data also can you help?
I have the US997 sold by B&H. Wi-fi calling works on T-Mobile.
Jonstambaugh said:
I have the same phone from sprint got it unlocked to use on T-Mobile but don't have Wi-Fi calling or even good service or data also can you help?
Click to expand...
Click to collapse
I got mine from B&H. It may be because yours is "Sprint", the software (ROM) is slightly different. I don't have any idea what you would have to do to get wifi calling working. At this point you can't unlock the bootloader to flash a different rom, so your only option would be checking with T-Mobile to see if it is provisioned properly.
On a side note, I may have to try a different SMS app, as Google Messages way over compresses picture messages to they point they are garbage.
A couple of quick tests (using hangouts / google voice number), Signal will receive sms via wifi, but will not send. Textra will both receive and send via wifi. Picture quality for MMS is fine using either Signal or Textra.
Just as the title says, has anyone successfully used an unlocked, Verizon branded LG G6 (VS988) with a third party sim (for data and making phone calls? Which country are you in, which sim cards are you using, any attempts abroad/traveling, etc?
Bought a mint unlocked Verizon LG G6, confirmed it was unlocked by two Verizon reps over the phone, and one in-person Verizon rep in my city. With the in-person rep (as well as on my own of course), we could not get my T-mobile, Three (a UK sim), and Project Fi to work with the phone, for data/phone/SMS.
Not surprisingly, when he inserted a Verizon Sim, of course it worked. The rep genuinely tried his best to help, but in the end was like "sorry, ¯_(ツ)_/¯ " and said it was probably an unresolveable network problem, and yes, that the phone was definitely unlocked (checked his database).
Before I came to his shop, though, I spent a couple hours at home tinkering with ALL the phone settings (set up a verified APN, toggle global/LTE-GSM-CDMA options, set data roaming ON), and the best I could get was the G6 successfully connecting to T-Mobile for all of 30 seconds (I could surf the web, but NO phone calls), then losing all bars of connection and cutting out entirely. Toggling airplane mode allows you to connect for at most 30 seconds at a time, also, weirdly enough.
What gives? I confirmed the sim cards worked on my other unlocked devices (LG G5, 1+5, Xiaomi Redmi), and I really want to use this G6 here (USA), but more especially, while I am traveling abroad and looking to use whatever country's local sim cards.
Lastly, do you think rooting this phone and installing a custom ROM would help the issue? I prefer not to return this phone because I got a decent deal on it (through ebay's 20% off) and everything else about it is awesome.
Hi
While not strictly the same, I have Verizon LG V20 VS995 with a similar problem with my EE sim which will not register properly and when it does it is only 3G instead of 4G/LTE but keeps dropping off. Where I differ from you is that I can use an O2 sim and get both calls and 4G/LTE data with it. I live in UK. Hope this might help.
Sent from my VS995 using Tapatalk
My G6 is the unlocked us997, but the wifes is the Verizon Unlocked G6. UNFORTUNATELY I have yet to get her MMS messages working on it for her but everything else works perfectly fine, on TracFone sim (on AT&T network), ... And FYI, only the bootloader unlocked LG G6 can be rooted, all the carrier version, whether they're network locked or unlocked, they're most definitely bootloader locked, thus no root :<P
I got the same phone as you...I live in the Dominican Republic using a Claro chip...Bought the phone from ebay unlocked. So there is something you must talk with verizon so they unlock it. On the other hand we cant root our phones only the europe and US version can be rooted.
Have you checked if this phone has a region locked on it? And if it's removed by placing that 5 minutes-long phone call?
Also, once the SIM (non-Verizon SIM) did you check the APN settings if they are the correct one for your carrier?
I have a similar problem
I bought an unlocked Verizon G6 vs988 on ebay (the listing actually said US997).
I managed to get it to work for phone calls and sms but could not set the data.
I manually set the APN but it would not stay "chosen".
I got all the settings but when I chose it and closed the screen it got unchosen (unchecked) and I did not get a data connection.
is there any custom rom for this model?
would a firmware for the us997 work on this model?
Bump
physics.dor said:
I bought an unlocked Verizon G6 vs988 on ebay (the listing actually said US997).
I managed to get it to work for phone calls and sms but could not set the data.
I manually set the APN but it would not stay "chosen".
I got all the settings but when I chose it and closed the screen it got unchosen (unchecked) and I did not get a data connection.
is there any custom rom for this model?
would a firmware for the us997 work on this model?
Click to expand...
Click to collapse
If you are in U.S. it should work fine with AT&T and T-mobile, as long as correct APN has been entered. once you enter the new APN, you must select the 3dots, on top right and save, once the new SIM inserted, just go back to APN and select the correct APN.
If you are outside U.S, the LG G6 Verizon unlocked does not have B1 (2100) which is required by most GSM carriers out side US, so you can get 3G or in most cases 2G (E) network only. LG G6 AT&T unlocked works fine outside US, but it does not have CDMA technology and can't be use with Verizon or Sprint. hope that helps
Hi , I have a similar problem. I bought vs988 verizon version and popped in a MINT sim. I had issues setting it up but eventually got it work via the pull down menu in the 'settings' at the top that said 'mobile data off - turn on?' - now this has vanished- can I get this back ?
The mobile data button in the notification tab and the actualy mobile button in the mobile data section in 'settings' do not work (and never have) - they always ask me to contact verizon.
So what do i do ? I have no mobile data now. And it's a pain.
My issue is partially solved in that when I 'reset network settings' and then re-add my APN (for mint) it automatically turns on mobile data. Using the other 'mobile data' buttons (as I mention below do not work).
And now that mobile data is on - I use airplane mode to turn it off, and turn on wifi (because i have google voice I still get voice calls). Anyway this works if you have a similar problem.
I am wondering if this issue would exist if I used a Verizon MVNO (instead of Mint/t-mobile) ?
(so by it being offically "unlocked" actually is not really true - when i first bought the phone I messaged LG and they suggested i needed to send it into them so it could be re-flashed. They would charge me for it and I would lose my phone for about 2 weeks - which is a pain, and not worth the expense)
sammyDC said:
Hi , I have a similar problem. I bought vs988 verizon version and popped in a MINT sim. I had issues setting it up but eventually got it work via the pull down menu in the 'settings' at the top that said 'mobile data off - turn on?' - now this has vanished- can I get this back ?
The mobile data button in the notification tab and the actualy mobile button in the mobile data section in 'settings' do not work (and never have) - they always ask me to contact verizon.
So what do i do ? I have no mobile data now. And it's a pain.
Click to expand...
Click to collapse
I have the verizon version of lg g6 and it works perfectly fine in Nigeria with all nigerian sims:mtn,airtel,glo,9mobile and even works on 4g let but I set the network mode to global and I receive calls and sms promptly
Hi all. Posting this for users looking for answers on VoLTE and WoWifi on the 6T on AT&T & Verizon. If users with access to the OP6T could please test and report, that would be very helpful. Since the pixel 3 now supports both VoLTE & VoWiFi (on AT&T) there is perhaps some hope that OnePlus will also support it.
1: On AT&T, is there an option for Voice over LTE and Wifi calling and does it work?
2: On Verizon, I know Voice over LTE will work, but what about Wifi Calling?
Screen shots welcome I will have my hands on the device as soon as its available and will report since I have all the carriers, but thought maybe someone might get their hands on one early and could report. It might make a big difference on whether or now some users buy the device.! Thanks guys!
Yeah, whether or not I get the OP6T depends entirely on whether VoLTE and VoWiFi work on AT&T.
Eagerly waiting for updates!
hosss870 said:
Yeah, whether or not I get the OP6T depends entirely on whether VoLTE and VoWiFi work on AT&T.
Eagerly waiting for updates!
Click to expand...
Click to collapse
Same here!
AT&T & Verizon VoLTE and VoWiFi calling/texting thread
Same here. I’ve got a spot in SC where I got for holidays annually where, without Wi-Fi calling, my phone is a paperweight. I’ve always wanted to try a OnePlus but if there’s no Wi-Fi calling I’ll have to pass and stick with my XS Max.
I’ve already ordered but it’ll be a quick turnaround if that doesn’t work.
Sent from my iPhone using Tapatalk
This question came up in the AMA with the OP team in their community forums last week, and Pei himself said VoWifi isn't supported at the moment.
Just got my device today so update time..
1: VoLTE works on Verizon by default as soon as you pop in the SIM. All the Verizon LTE bands seem to work fine.. in this area, 2,4,13, & 66. no option in the menu for wiFi calling, even though it works fine in my pixel 3 where my verizon SIM just was.
2: Neither VoLTE or VoWiFI work on AT&T by default. No option for either in the settings at all. So no change there from OP5/5T/6 ETC. However, if you go do the dialer, dial *#800# and hit enter, select oneplus logkit, scroll down to function switch and select it, and check the box for VoLTE switch and Vowifi switch and then reboot, it puts the VOLTE setting and VoWiFI setting in for both the Verizon and AT&T SIM. and while you can enable VoWIFI on both Verizon and AT&T, it DOES NOT work on either. On AT&T however, as long as you have a VOLTE capable/recognized IMEI on your AT&T account for your line, VoLTE/HD voice work just fine.
So, while it is amazing to have, for the first time ever a DUAL SIM phone that supports both VZW & AT&T at the same time, it is a too bad that VoWiFI does not work on either, Especially now that the Pixel 3 Supports it on both carriers.
crowsnestitsupport said:
Just got my device today so update time..
1: VoLTE works on Verizon by default as soon as you pop in the SIM. All the Verizon LTE bands seem to work fine.. in this area, 2,4,13, & 66. no option in the menu for wiFi calling, even though it works fine in my pixel 3 where my verizon SIM just was.
2: Neither VoLTE or VoWiFI work on AT&T by default. No option for either in the settings at all. So no change there from OP5/5T/6 ETC. However, if you go do the dialer, dial *#800# and hit enter, select oneplus logkit, scroll down to function switch and select it, and check the box for VoLTE switch and Vowifi switch and then reboot, it puts the VOLTE setting and VoWiFI setting in for both the Verizon and AT&T SIM. and while you can enable VoWIFI on both Verizon and AT&T, it DOES NOT work on either. On AT&T however, as long as you have a VOLTE capable/recognized IMEI on your AT&T account for your line, VoLTE/HD voice work just fine.
So, while it is amazing to have, for the first time ever a DUAL SIM phone that supports both VZW & AT&T at the same time, it is a too bad that VoWiFI does not work on either, Especially now that the Pixel 3 Supports it on both carriers.
Click to expand...
Click to collapse
proof
crowsnestitsupport said:
Hi all. Posting this for users looking for answers on VoLTE and WoWifi on the 6T on AT&T & Verizon. If users with access to the OP6T could please test and report, that would be very helpful. Since the pixel 3 now supports both VoLTE & VoWiFi (on AT&T) there is perhaps some hope that OnePlus will also support it.
1: On AT&T, is there an option for Voice over LTE and Wifi calling and does it work?
2: On Verizon, I know Voice over LTE will work, but what about Wifi Calling?
Screen shots welcome I will have my hands on the device as soon as its available and will report since I have all the carriers, but thought maybe someone might get their hands on one early and could report. It might make a big difference on whether or now some users buy the device.! Thanks guys!
Click to expand...
Click to collapse
Has anyone used the dialer code *#*#4636#*#* & try to toggle VoLTE &/OR VoWI-FI ?
Thanks for the info. I'm looking to get the 6T to use on AT&T. I've never used an unlocked/non-AT&T branded phone on my line. Are there any other limitations that AT&T implements on non-AT&T branded devices? Do they throttle data speeds? Any issues with SMS/MMS working like some Verizon users are experiencing? Would I need to contact AT&T to have any special provisioning just to get it to work? I appreciate any insight on this.
sharksfan7 said:
Thanks for the info. I'm looking to get the 6T to use on AT&T. I've never used an unlocked/non-AT&T branded phone on my line. Are there any other limitations that AT&T implements on non-AT&T branded devices? Do they throttle data speeds? Any issues with SMS/MMS working like some Verizon users are experiencing? Would I need to contact AT&T to have any special provisioning just to get it to work? I appreciate any insight on this.
Click to expand...
Click to collapse
I'm not on AT&T so,I'm not gonna speculate.
Perhaps someone will chime-in soon for more definitive information.
My OnePlus 6t came in today. Took sim out of my Pixel 3 XL and popped it in. Everything is working except I can't SEND text messages. I can receive them and make calls, data is fine (actually amazing 44.5 mbps d/l, which is good for around here.)
I've tried chatting with Verizon, but after I told them what device, there was a long pause and then she asked if it was an iPhone
Here are my troubleshooting steps I've followed.
-deleted app cache and storage
-reset device
-factory reset device
-cleared cache partition in recovery
Any suggestions? I put the sim back in my Pixel and all the messages came through. I've tried both slots.
Mobile network state-Connected
Service state-In service
Mobile voice network type-4g
Mobile data network types-4g
EID-unknown (??)
There is another thread discussing why a lot of people using 6T on Verizon having problem receiving SMS and MMS. Something the phone being LTE only on Verizon. Maybe you are having the same problem? Worth reading that thread.
akmsr said:
There is another thread discussing why a lot of people using 6T on Verizon having problem receiving SMS and MMS. Something the phone being LTE only on Verizon. Maybe you are having the same problem? Worth reading that thread.
Click to expand...
Click to collapse
Yes. that would be best. I didn't need to do anything with mine, it just worked. However, I do have the latest version the the Verizon SIM card. Not sure if that matters. I was using a Pixel 3 before.
sharksfan7 said:
Thanks for the info. I'm looking to get the 6T to use on AT&T. I've never used an unlocked/non-AT&T branded phone on my line. Are there any other limitations that AT&T implements on non-AT&T branded devices? Do they throttle data speeds? Any issues with SMS/MMS working like some Verizon users are experiencing? Would I need to contact AT&T to have any special provisioning just to get it to work? I appreciate any insight on this.
Click to expand...
Click to collapse
I have used AT&T for years on unlocked devices. I have tested everything Data speeds are just fine. no issues there. the OP6T supports all the bands on AT&T so coverage should be just fine for you. The limits are as follows:
1: built in visual voicemail will not work, you will need to use the AT&T visual Voicemail app from the store.
2: Wifi calling/texting will not work
3: VoLTE/HD Voice will only work with the above mentioned trickery. Root is NOT needed. just the *#800# thing
the only provisioning you may need is the AT&T imei for VoLTE (Easiest to do online) after installing your AT&T SIM in the OP6T, if VoLTE doesn't work after following the instruction in this thread, log into your AT&T account and update your IMEI to one of your past AT&T phones that support VoLTE and update, reboot you OP6T and bingo, it will work. No other provisioning or limitations that I know of. And if VoLTE/HD Voice isn't important to you, you can ignore all this. Your existing AT&T SIM just needs installed in your OP6T and your good to go!
KOLIOSIS said:
Has anyone used the dialer code *#*#4636#*#* & try to toggle VoLTE &/OR VoWI-FI ?
Click to expand...
Click to collapse
The *#800# enables all those options. But it doesn't help anything on Verizon, and on AT&T it does work for VoLTE if a VOLTE enabled IMEI is on your AT&T account, but it doesn't work for wifi calling. I wish it was just illegal for the carriers to block services just because its a non branded phone
natypes said:
My OnePlus 6t came in today. Took sim out of my Pixel 3 XL and popped it in. Everything is working except I can't SEND text messages. I can receive them and make calls, data is fine (actually amazing 44.5 mbps d/l, which is good for around here.)
I've tried chatting with Verizon, but after I told them what device, there was a long pause and then she asked if it was an iPhone
Here are my troubleshooting steps I've followed.
-deleted app cache and storage
-reset device
-factory reset device
-cleared cache partition in recovery
Any suggestions? I put the sim back in my Pixel and all the messages came through. I've tried both slots.
Mobile network state-Connected
Service state-In service
Mobile voice network type-4g
Mobile data network types-4g
EID-unknown (??)
Click to expand...
Click to collapse
Here are various threads.. Not sure if there are answers. But again, it just worked for me.. Sorry I'm not more help.
https://forum.xda-developers.com/oneplus-6t/help/verizon-oneplus-6t-im-happy-one-t3863258
https://forum.xda-developers.com/oneplus-6t/help/feeling-6t-verizon-t3861188
https://forum.xda-developers.com/oneplus-6t/help/wifi-calling-incoming-phone-calls-text-t3863595
https://forum.xda-developers.com/oneplus-6t/help/verizon-to-to-sms-t3863352
crowsnestitsupport said:
Just got my device today so update time..
1: VoLTE works on Verizon by default as soon as you pop in the SIM. All the Verizon LTE bands seem to work fine.. in this area, 2,4,13, & 66. no option in the menu for wiFi calling, even though it works fine in my pixel 3 where my verizon SIM just was.
2: Neither VoLTE or VoWiFI work on AT&T by default. No option for either in the settings at all. So no change there from OP5/5T/6 ETC. However, if you go do the dialer, dial *#800# and hit enter, select oneplus logkit, scroll down to function switch and select it, and check the box for VoLTE switch and Vowifi switch and then reboot, it puts the VOLTE setting and VoWiFI setting in for both the Verizon and AT&T SIM. and while you can enable VoWIFI on both Verizon and AT&T, it DOES NOT work on either. On AT&T however, as long as you have a VOLTE capable/recognized IMEI on your AT&T account for your line, VoLTE/HD voice work just fine.
So, while it is amazing to have, for the first time ever a DUAL SIM phone that supports both VZW & AT&T at the same time, it is a too bad that VoWiFI does not work on either, Especially now that the Pixel 3 Supports it on both carriers.
Click to expand...
Click to collapse
So glad that I found this post. I am coming from an AT&T branded Galaxy S8 to my new OnePlus 6T. The above instructions worked like a charm for AT&T. I ran some tests. The OnePlus displays "HD" when I call my wife on her phone on AT&T and VoLTE shows in the status bar. When I toggle it back off I lose "HD" on the phone call screen. Also, LTE stays on during calls with VoLTE turned on and I ran a speedtest with it on and off and I definitely get 4G speed with it on and it downgrades to HSPA+ with VoLTE off and speed goes way down. Hopefully VoWIFI will be supported soon but that's not a deal breaker for me as I get great reception most of the time where I live, work and travel.
KOLIOSIS said:
Has anyone used the dialer code *#*#4636#*#* & try to toggle VoLTE &/OR VoWI-FI ?
Click to expand...
Click to collapse
I am on att had it all working on my unlocked NOTE 8. Now I can't even get volte cause it's all grayed out.
The service providers don't want you to buy unlocked phones. They make zero on them!! So that's why they block stuff. It's an antitrust lawsuit waiting to happen!! A$$h0!€$
Sent from my SM-N960U using Tapatalk
I've got AT&T as my primary and Verizon as #2. I just got off the phone with Verizon, told them I needed to add the CDMA Less feature to fix my texting. He checked a box on his end and I got a flood of texts in...what was even better, it was a work phone on a business account. I didn't even have to provide any real information to him and he was able to fix me up. He was aware of the issue though, he'd asked if it was a 6T from T-Mobile...so someone sent out a bulletin somewhere that he had read.
Anyway, I left Verizon to go to AT&T specifically for this plan of having one phone to cover 2 lines while one being fully functional (AT&T), so far it's been working well switching between SIMs for texting and making phone calls.
What were you specifically looking to find out?
Edit: found what you're looking for...however I'm not sure where those settings are even at.
I posted this ? on reddit as well; however, this device is on its last legs so there's not much interest for it. I've gotten some good answers here and there on this website, but a dedicated thread to gather all the good info might be more helpful.
I still use my AT&T H910 as I don't really do much gaming on it. Calling, texting, and YouTube is what I mostly utilize it for. I just heard about the whole VoLTE requirement on specific devices after 2022 for AT&T, and 2021 for T-Mobile.
I spoke to AT&T, and they re-assured that the H910 was going to be one of the devices supported after 2022; however, I've been thinking about changing to T-Mobile (my family has a great plan with them, and I always switch back and forth between carriers based on who gives me the best deal) but I can't seem to get a straight answer from T-Mobile about whether my unlocked H910 will work with them after 2021; some didn't even know about the 2021 specifics of it.
I know AT&T will have to allow devices to be used on their network after 2022 even if they're VoLTE capable already. By the looks of it, T-Mobile won't go to that extreme; however, does anyone know exactly how VoLTE works? Specially in regards to using the AT&T H910 model on T-Mobile? Does my H910 has the required Bands to utilize VoLTE on T-Mobile? Or is it one of those things like "Wi-Fi Calling" where T-Mobile Wi-Fi calling only works with the LG V20 model from T-Mobile, and AT&T Wi-Fi calling only works with the LG V20 model from AT&T?
You need band 12 support which H910 has. Also a rom with IMS services working so no AOSP roms.
Volte works by using IMS processes in the rom to route phone calls over IP. No volte = no phone calls. But the device will still "work".
In theory the ATT software will work, unlock it and borrow someone else's sim. In theory a partial cross flash (just system, no modem/aboot/etc) could work if it doesn't.
nxb said:
You need band 12 support which H910 has. Also a rom with IMS services working so no AOSP roms.
In theory the ATT software will work, unlock it and borrow someone else's sim.
Click to expand...
Click to collapse
I was recommended to use an app called Network Mode Universal on reddit for VoLTE testing purposes, and after inserting a T-Mobile SIM card that I borrowed on my unlocked H910 and using the application, the Voice Network Type tab says "LTE". Which is supposed to be a sign that VoLTE might be working on the H910 using a T-Mobile SIM, but that's all I know; just what people tell me.
Update:
The person who recommended that Network Mode Universal app forgot to mention that you have to actually make a call to know whether the phone supports VoLTE with the SIM card in use. When actually making a call, the Voice Network Type tab changes from "LTE" to "UMTS". Which means the H910 is not VoLTE capable on T-Mobile.
Sent from my LG-H910 using Tapatalk
Could also be how his sim is set up. Volte has to be enabled there and in the phone. My suggestion would be to force LTE only on the device as well. Does it use VOLTE on his phone?
Also look at IMS registration in the phone and see if it's registered.
nxb said:
Could also be how his sim is set up. Volte has to be enabled there and in the phone. My suggestion would be to force LTE only on the device as well. Does it use VOLTE on his phone?
Also look at IMS registration in the phone and see if it's registered.
Click to expand...
Click to collapse
The person I borrowed the T-Mobile SIM from uses an iPhone on iOS 13. According to him, the option for turning on/off VoLTE from the settings is gone. He used to be able to turn it on and off at will; not anymore after iOS 13. It should be enabled by default on an iPhone though, I don't see why it would be off. It's almost a necessity on an iPhone I would think.
The LG V20 seems to be more limited in that sense, as on my previous Samsung phone I could enable 2G, 4G, LTE, etc, individually to force only one. I don't see any of those settings on my H910. I don't see any IMS info either.
Either way, I doubt T-Mobile would bother servicing my AT&T branded H910 phone in case IMS needed to be registered; in the case that it wasn't already. I've had really bad luck in the past dealing with T-Mobile on phones that are not T-Mobile branded.
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IMS has a phone component and a sim component.
you can check status in the service menu of IMS on the H910. Hope it works on my Tmo phone, getting my sim upgraded
nxb said:
IMS has a phone component and a sim component.
Hope it works on my Tmo phone, getting my sim upgraded
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It should work if it's a T-Mobile phone. The H918 is 40% more expensive, so it would be great if the H910 worked with T-Mobile; however, it's not looking good.
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Eh, kinda. I'm having trouble too. My IMS services aren't connecting. Going to try a few different roms. I'm through an MVNO so still trying to get them to understand ISIM vs USIM.
see: https://www.quora.com/Are-4G-SIM-cards-of-two-types-VoLTE-and-LTE?share=1
https://www.slideshare.net/ikwe22/understanding-telecom-sim-and-usim-isim-for-lte
nxb said:
Eh, kinda. I'm having trouble too. My IMS services aren't connecting. Going to try a few different roms. I'm through an MVNO so still trying to get them to understand ISIM vs USIM.
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Click to collapse
Gotcha, I hope it works. I was mentioning to @C D which has helped me understand a lot about VoLTE, that I'm starting to give in to the system of using whatever carrier my phone supports, as long as I can keep using my H910. The removable battery & IR blaster era has come to an end, and I don't think I need another phone right now other than the V20. I might even consider going back to the AT&T MVNO I was using before.
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Latest result: oreo works but not nougat.
IMS never registers. Maybe I can fix it. At least now OK sim-wise. Unfortunately doing the sim swap broke tethering.
Hi guys, I am sorry for reviving the old thread.
I too owned H990DS Sea version on latest nougat. It has volte option but just couldn't switch on.
Please take a look at this thread on LG G8
https://forum.xda-developers.com/t/...ther-qualcomm-powered-lg-devices-too.4343655/
I tried on my H990DS using the above thread's method and it didn't work. I was informed that the mbn files are for LG G8. We need mbn files that are specific for LG V20. I have searched up and down and I couldn't find any.
So I hope that I have provided some insights and I hope any member/master/guru out there can help where to find the mbn file (collection of all international carriers mbn) and make volte works for H990DS.