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Hi, I cant seem to switch my phone to 4g / LTE. I've tried the various *# hacks like LTE only, but i only get 'Not supported'. Anyone else experiencing this? I was using 4g and getting 4g speeds on my N5. The phone was previously locked and I unlocked it straight away after receiving it.
The software version is D80210g-234-30
Anyone?
im also interested on how to fix this. anyone?
Turns out it was just a problem with the sim / network I was using (Tesco (o2)). When I tried with another 4g sim the options for LTE showed just fine
Wezi said:
Hi, I cant seem to switch my phone to 4g / LTE. I've tried the various *# hacks like LTE only, but i only get 'Not supported'. Anyone else experiencing this? I was using 4g and getting 4g speeds on my N5. The phone was previously locked and I unlocked it straight away after receiving it.
The software version is D80210g-234-30
Click to expand...
Click to collapse
Can you find any solution for this?
I can't switch my phone too *# hack like LTE only --- not supported ://
ozhanbas said:
Can you find any solution for this?
I can't switch my phone too *# hack like LTE only --- not supported ://
Click to expand...
Click to collapse
It was a problem with my network provider, nothing to do with the phone. Try another 4g sim from another network and see if you get 4g / LTE
I contacted LG today about the 4G issues that many experience and I thought I should share the official response:
Many Thanks for your email regarding your LG G2, I am sorry to hear you are experiencing problems in receiving 4G.
Can I just ask whom your network provider is? All main UK network providers bar a couple are receiving 4G via our handset, there are only a few 4G networks at the moment who are yet to approve the software on the G2. Please note it is not a limitation of the handset but is network dependent
The above will also explain why some other people in the area are getting it, their networks are almost certainly among those whom have approved the software on the G2 handset.
I look forward to your earliest response with the network provider, once received we should be able to clarify this for you.
Click to expand...
Click to collapse
So it seems it is indeed a carrier issue.
errikosd said:
I contacted LG today about the 4G issues that many experience and I thought I should share the official response:
So it seems it is indeed a carrier issue.
Click to expand...
Click to collapse
Hi, I have recently upgraded my phone to a sim free LG G2 also, and in doing so spoke to Tesco Mobile about receiving a new 4G sim to match my upgraded tariff.
This has all been put in place but I still have no ability to select LTE in the preferred network section. New APN settings were sent out by Tesco but this didnt make any additional setting options available, has anyone got any more info on this issue or advice?
zeus_01504 said:
Hi, I have recently upgraded my phone to a sim free LG G2 also, and in doing so spoke to Tesco Mobile about receiving a new 4G sim to match my upgraded tariff.
This has all been put in place but I still have no ability to select LTE in the preferred network section. New APN settings were sent out by Tesco but this didnt make any additional setting options available, has anyone got any more info on this issue or advice?
Click to expand...
Click to collapse
You probably also have an non-EUR software version installed on your G2. Where did you buy it from?
If the above stands, the solution is to flash the EUR software version, although I haven't as I do not really need 4G for the time being. 3G is completely fine.
errikosd said:
You probably also have an non-EUR software version installed on your G2. Where did you buy it from?
If the above stands, the solution is to flash the EUR software version, although I haven't as I do not really need 4G for the time being. 3G is completely fine.
Click to expand...
Click to collapse
The handset was purchased from Expansys in the UK and the software is version D80220b-EUR-XX.
So I would not have expected that this issue would come up, it seems to be a unique blend of Tesco(UK) carrier settings and the handset software.
I won't be flashing any new ROM as a solution for a problem which sits with the carrier. Though I am keen to hear if any other users have found an alternative work around.
zeus_01504 said:
The handset was purchased from Expansys in the UK and the software is version D80220b-EUR-XX.
So I would not have expected that this issue would come up, it seems to be a unique blend of Tesco(UK) carrier settings and the handset software.
I won't be flashing any new ROM as a solution for a problem which sits with the carrier. Though I am keen to hear if any other users have found an alternative work around.
Click to expand...
Click to collapse
You already have a EUR software version, so you do not have to flash.
There is a problem with some carriers in the UK not approving the G2 4G software as I have stated above.
Had the same problem.
Changed the SIM for a new one (still labelled 3G 128k) and 4G is fine now (stock JB D802 SIM free).
My previous SIM was almost from the turn of the century (cut to fit microSIM)
I'm having the same problem, no LTE option, here's a solution:
Enter Android test menu by dialing *#*#4636#*#*
Go to Phone Information ... Set preffered network type ... f.e. to LTE/GSM/WCDMA ... if LTE is available, my phone switches to LTE ( showing 4G ) immediately without restarting.
This is what I did
http://mightyintelligence.blogspot.co.uk/2014/06/lg-g2-d802-international-using-4glte-on.html
New Working method to fix 4g on D802
Hello,
I am currently with T-Mobile and own a Galaxy Note 4 SM-N910U model, the exynos variant. Is there a way to enable voLTE on this device through some menu? My carrier supports this feature and I know my phone does as well, but it is disabled because the data drops to 3g whenever I make a call.
Anyone?
On mine is in the menu
Sent from my SM-N910T using XDA Free mobile app
darekz said:
On mine is in the menu
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
Hmmn.. Mine isn't in the call menu. It must be in some hidden menu.
Have you used the search function in settings?
arisgoku said:
Have you used the search function in settings?
Click to expand...
Click to collapse
Yes I have, but it is no where could be found. I am going to contact Samsung later.
Don't see it on my sm-n910c either.
Craleb said:
Don't see it on my sm-n910c either.
Click to expand...
Click to collapse
I confirmed with Samsung that the device indeed has support for voLTE if your carrier supports it. They informed me that it should be turned on by default, which is a lie because my carrier has voLTE and whenever I make a call, the data drops to 3g.
hhhh1973 said:
I confirmed with Samsung that the device indeed has support for voLTE if your carrier supports it. They informed me that it should be turned on by default, which is a lie because my carrier has voLTE and whenever I make a call, the data drops to 3g.
Click to expand...
Click to collapse
In Japan......if we bring a self acquired device and use it on their network.......certain feature will not work.
Like VOLTE....as I just discovered. They have a separate APN for other devices and it does not support VOLTE.
The other APN that their carrier branded phones use....recognizes the phones based off of their IMEI number.
So.....it might not be a phone issue. Could be your carrier skimming on certain features for phones purchased elsewhere.
Don't see it on my sm-n910f either
hi all, i don't see the menu in my SM-N910F
In your opinion, Is it possible that VOLTE works only on Note4 Exynos? and doesn't works on Snapdragon based Note4 ?
umarino said:
hi all, i don't see the menu in my SM-N910F
In your opinion, Is it possible that VOLTE works only on Note4 Exynos? and doesn't works on Snapdragon based Note4 ?
Click to expand...
Click to collapse
It works on snapdragon also with custom or stock 6.0.1 rom
RaipurBoy said:
It works on snapdragon also with custom or stock 6.0.1 rom
Click to expand...
Click to collapse
I have a stock ROM 6.0.1 (TIM italy branded) but it does not works with Vodafone SIM
and there is not the menu. in settings
umarino said:
I have a stock ROM 6.0.1 (TIM italy branded) but it does not works with Vodafone SIM
and there is not the menu. in settings
Click to expand...
Click to collapse
Try custom rom there are many
thanks but i don't want to invalidate the guarantee.
Guys I also have a N910C Exynos Variant and its quite frustrating to know that a flagship device doesn't support VoLTE !
You won't find it in system settings
hhhh1973 said:
Hello,
I am currently with T-Mobile and own a Galaxy Note 4 SM-N910U model, the exynos variant. Is there a way to enable voLTE on this device through some menu? My carrier supports this feature and I know my phone does as well, but it is disabled because the data drops to 3g whenever I make a call.
Click to expand...
Click to collapse
Just go to 'Phone' & then tap on 3 vertical dots and then select 'settings' and then select 'call' and after that enable VOLTE
can someone explain me what is the purpose of Volte? for what you use this?
jjoeshua said:
can someone explain me what is the purpose of Volte? for what you use this?
Click to expand...
Click to collapse
volte is Voice Over LTE. It is basically what it says on the tin. You can make voice calls over LTE internet connections.
VoLTE (HD voice) and Wifi Calling WORKS with the SM-N910T.
I am currently using this device, with "MetroPCS by T-Mobile". As of 01-29-2021, T-Mobile will only allow the SM-N910T to work on their network. The "T" variant only, because it is T-Mobile's own device. VoLTE (HD voice) will work if you use OEM stock Android 6.0.1.
Here's how I enabled VoLTE (HD voice) and Wifi Calling:
Backed up ALL my files.
Removed SIM and SD cards.
Made sure battery had at least 80% !!
(If using a generic battery, it must be 100%. They drain faster!)
Used Odin (v3.13.1) to flash/install lastest Stock Android 6.0.1. (This wiped everything, even storage, pics, etc.) First boot took over 20 mins!
After reboot, connected to WIFI.
Went to phone's Settings, About Device, Software Updates, and tapped Download Updates Manually. This caused it to find a modem (baseband) update. I chose to install it NOW. It did just that, and rebooted.
Powered off phone.
Reinstalled SIM and SD cards.
Turned phone on, and VoLTE (HD voice) was fixed. Whenever I speak with another HD caller, "HD" appears next to their name.
To enable Wifi Calling, go to Settings, More Networks, Wi-Fi Calling, and enable it.
CAUTION / Extra Info:
A few days ago, I broke the screen on my primary SM-N910T. The screen would not light up, and it did not respond to any touches. I went to a MetroPCS store, to move my account to another SM-N910T. The sales rep said he could not move my account to the other device, showed me his computer screen as "proof", and said it needed to be HD voice compatible. I told him both phones are identical, and both had VoLTE working perfectly. Then he offered to try it anyway for $29 (non-refundable). I politely declined, went home, and swapped the motherboards. All is fine again. I shared this story in case you encounter similar resistance, and need to tell the sales rep you are willing to take a (non-refundable) chance. And to warn you that T-Mobile might have made some changes, that I am not aware of. However, I am currently using the SM-N910T.
Dear brother,
As I know some mobile services providers have some VOWIFI provided to their users. Provided that the customer's mobile phone has VoLTE function. Unfortunately I cannot find how to setup my V20 so that it can work with the VIWIFI. Do I need to install any software or VOWIFI is only for iPhone?
Voice over wifi = WiFi calling
stevenwtchan said:
Dear brother,
As I know some mobile services providers have some VOWIFI provided to their users. Provided that the customer's mobile phone has VoLTE function. Unfortunately I cannot find how to setup my V20 so that it can work with the VIWIFI. Do I need to install any software or VOWIFI is only for iPhone?
Click to expand...
Click to collapse
We have 2 AT&T branded LG V20s. Setting up WiFi calling was easy you go to settings>wiFi Calling. After clicking that, you are asked (in the US) to enter a 911 (emergency calling) address. It works fine. If you are on a WiFi network and your cellular signal is weak, the phone will switch to WiFi calling automatically during calls. All was well until I brought my V20s to T-Mobile and (as far as I know) not being able to flash the T-Mobile firmware (H918? on my H910) on my AT&T phone WiFi calling hangs in the setup phase, Everything thing else works fine though. So I guess it depends on which V20 model you are using and which carrier you are using with it.
Thank You for your indormation. My services provider is China Mobile Hong Kong (CMHK). The services provider can provide this function for iPhone only. Perhaps my V20 LG H990 cannot use it. That's why I ask how to set this page.
I'm using the same provider as well. Is this service an additional subscription?
If you are using CMHK and has a iphone, you can use it.
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.
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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.
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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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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.