is the T-Mobile modem better than the international? - OnePlus 6T Questions & Answers

is the T-Mobile modem better than the international?
I've been holding off on buying , I saw somewhere a few of you bought both models and we're going to follow up. But I haven't seen any posts yet on if there's any real difference on the modems and signal quality, Volte or VoWifi etc.
My Carrier is T-Mobile, and I've had some weird issues with my current OP3t on wifi calling and volte. And flashing stock or non stock ROMs seem to have no affect on those issues. Verified apn settings as well.
And doesn't seem to be limited to just the 3t. My coworker has the OP6 and has the same issues.
My other unlocked phones moto x4 & Moto g5s+ work great with both of those features.
So I'm hoping the 6t will work correctly but I would prefer to get the international version but if the TMobile version is more reliable on those settings then I might opt for that instead.
Thanks for any insight!

pyrochance said:
is the T-Mobile modem better than the international?
I've been holding off on buying , I saw somewhere a few of you bought both models and we're going to follow up. But I haven't seen any posts yet on if there's any real difference on the modems and signal quality, Volte or VoWifi etc.
My Carrier is T-Mobile, and I've had some weird issues with my current OP3t on wifi calling and volte. And flashing stock or non stock ROMs seem to have no affect on those issues. Verified apn settings as well.
And doesn't seem to be limited to just the 3t. My coworker has the OP6 and has the same issues.
My other unlocked phones moto x4 & Moto g5s+ work great with both of those features.
So I'm hoping the 6t will work correctly but I would prefer to get the international version but if the TMobile version is more reliable on those settings then I might opt for that instead.
Thanks for any insight!
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Click to collapse
Hi, did you find out if there was any T-Modem was better?

lokofly said:
Hi, did you find out if there was any T-Modem was better?
Click to expand...
Click to collapse
Unfortunately I never saw any updates on the threads I was following where someone bought both.
I ended up just buying the international version. I'm happy with it.
But I still have issues with MMS not working over the wifi calling when there is no cell signal. This apparently also affects the TMobile version so the issue looks like something one plus needs to fix. And not related to the modem. None of my other non 1+ phones have any trouble sending MMS over WiFi.
SMS works fine on wifi. As does Calling. It's strictly MMS that doesn't work.
So shouldn't matter which version you buy. Cellular looks to be the same on both.

Related

What setup for Verizon

Ok, I read that official support for the Axon 7 on Verizon's network is a no go. I've got one that I had active on VZW last year when I had to return my Note 7, but I just couldn't deal with the foibles (like constant roaming icon, and occasional LTE signal loss).
Question: if I want to use it again, what is recommended as far as rom, settings, tweaks, etc...to make it as trouble free as possible. My son is using it now on T-Mobile, but I want to move him over to our Verizon plan now that they offer unlimited again.
What are you using?
Any help is appreciated.
If you flash any custom room that is not based on stock miui, it will perfectly on Verizon, I myself use it on Verizon and as long as you change the room of the device it will run well on Verizon as it was a regular Verizon phone
tedkord said:
Ok, I read that official support for the Axon 7 on Verizon's network is a no go. I've got one that I had active on VZW last year when I had to return my Note 7, but I just couldn't deal with the foibles (like constant roaming icon, and occasional LTE signal loss).
Question: if I want to use it again, what is recommended as far as rom, settings, tweaks, etc...to make it as trouble free as possible. My son is using it now on T-Mobile, but I want to move him over to our Verizon plan now that they offer unlimited again.
What are you using?
Any help is appreciated.
Click to expand...
Click to collapse
Nougat fixed many of the Verizon issues, and even included Verizon VoLTE support. I've had no issues with Verizon on LOS, seen others use stock fine as well.
Verizon fully working on stock? In call web browsing, VoLte and LTE+?
xtermmin said:
Nougat fixed many of the Verizon issues, and even included Verizon VoLTE support. I've had no issues with Verizon on LOS, seen others use stock fine as well.
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Click to collapse
hey there sorry to bother you and I know this is an old thread but I need some direction here. I'm currently using L.o.s RR on the A2017U 64gb cause I was under the impression that it was the only way to get Verizon fully working. Maybe I missed understood you but did you say any nougat stock rom will also allow me to use Verizon fully? And if so can you point me to a good one? My phone is sluggish as hell right now with RR I'm using and I think I rather go back to stock. Not to mention I'm missing the great audio I had lol. Not worth it in my opinion. Thanks in advance.

U.S. ATT Compatibility experiences so far? And unlock experiences?

Hi folks,
Considering getting a 6T off the OnePlus site.
For those that got the devices early:
-Do you have experiences on AT&T Network to comment on how compatible it is? I've had some devices use to work well on ATT now not so good due to band migration; just curious to hear how the 6Ts fare.
-Please confirm: both SIM and BootLoader unlocks can be done immediately when purchasing from the OnePlus site (as opposed to the T-Mobile edition that's locked)
-Are there band/frequency differences between the T-Mo and ATT Versions? I'm on ATT but usually have bought "T-Mo" versions of devices because they were less likely to be BL locked; but my last phone (OP3T) broke me out of that cycle.
Any other AT&T-relevant experiences would be appreciated.
Interested in this as well.
I would like to know as well. It's kinda looking like we will have to test it out ourselves.
I am on AT&T with the 6t. I've only had mine for a week but have had no issues with anything network related. I came from a 3T and have better service with my 6T. There were 2 dead spots on my drive to / from work with the 3T that I no longer have with the 6T. I haven't had a chance to root or unlock mine yet due to being busy at work but so far I am happy. I loved the 3T but don't miss it a bit.
I have a 6t that I bought directly from OP that I use as my daily phone on Cricket, which uses AT&T towers. I have no signal problems, and download speeds are great. Anywhere I expect to have LTE I have it.
Phone is by far my favorite device I've had. Easy to unlock, install TWRP and flash kernels, and install mods through magisk!
I've bought my phone but don't get to open it until Christmas. It should arrive in a day or two. [emoji1360][emoji1360]
Sent from my ONEPLUS A3000 using Tapatalk
Works perfectly. Even gets VoLTE calls
Did you do anything special for volte per some of the threads? Also, does ATT visual voicemail work fine without a fuss? It's working well on my rooted 3T.
Sent from my ONEPLUS A3000 using Tapatalk
Funk2641 said:
Works perfectly. Even gets VoLTE calls
Click to expand...
Click to collapse
What did you do to get volte? Was your previous phone an att branded device? I came from an unlocked S8 that didn't get volte and I can't get volte on my 6T. Prior to my S8 I had the 6P which also didn't get volte.
I suggest reading this thread, https://forum.xda-developers.com/oneplus-6t/help/att-verizon-volte-vowifi-calling-t3860031. There's information on how to enable VoLTE settings on the phone. Most of the stuff in that thread pertains to Verizon, but some AT&T stuff too. Ultimately it's up to AT&T to provision your service properly. VoLTE is available. VoWiFi is not. Took me a couple of days & a couple of hours on the phone with AT&T support to get my line provisioned properly because the IMEI wasn't recognized. But that was only days after the phone was released. Would think that shouldn't be a problem now.
Once you get VoLTE working Visual Voicemail should work, but you need to use the AT&T app. However, for me it isn't always automatically retrieving VMs when I get them. My notifications will show I have a VM but I have to open the AT&T VVM app, go into the menu and Refresh. Only then does it pull the VM into the app.
This should be interesting. On my 3T I have ATT visual voicemail working, and it mostly works for transcribing messages (except long ones like my wife leaves...) But I don't think the phone is volte capable so I've never tried setting that up. I don't get to play we the phone til Xmas though!
Sent from my ONEPLUS A3000 using Tapatalk
Frankenscript said:
This should be interesting. On my 3T I have ATT visual voicemail working, and it mostly works for transcribing messages (except long ones like my wife leaves...) But I don't think the phone is volte capable so I've never tried setting that up. I don't get to play we the phone til Xmas though!
Sent from my ONEPLUS A3000 using Tapatalk
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Click to collapse
Yeah. I came from using a 5yo AT&T branded HTC One M7 and VVM worked fine on that. When I first got the 6T (unlocked int'l version) & popped in my sim, I had VoLTE but I couldn't get the VVM app to activate. That's what prompted my call to AT&T support. That's when they told me VoLTE was needed for VVM. I'm not entirely sure how accurate that statement is. The rep tried a bunch of stuff to get it working, including updating my line with the IMEI from the 6T. That's when things went bad. I lost all data completely. Actually, if I switched APNs, I could get 3G data. But it took two days before AT&T sorted it out and I got LTE back. Since then everything pertaining to AT&T service has been fine. I've never found the need for VoWiFi, although it would be cool to have, if necessary. And I wish their Advanced Messaging feature wasn't so limited.
Frankenscript said:
Hi folks,
Considering getting a 6T off the OnePlus site.
For those that got the devices early:
-Do you have experiences on AT&T Network to comment on how compatible it is? I've had some devices use to work well on ATT now not so good due to band migration; just curious to hear how the 6Ts fare.
-Please confirm: both SIM and BootLoader unlocks can be done immediately when purchasing from the OnePlus site (as opposed to the T-Mobile edition that's locked)
-Are there band/frequency differences between the T-Mo and ATT Versions? I'm on ATT but usually have bought "T-Mo" versions of devices because they were less likely to be BL locked; but my last phone (OP3T) broke me out of that cycle.
Any other AT&T-relevant experiences would be appreciated.
Click to expand...
Click to collapse
On att rn. Have been since the op2. No issues at all ? first thing I do is unlock bootloader
I got my 6T (Int'L) on or about Nov. 23, which I had purchased from OT - I am using it on a Family mobile plan which uses T-Mobile towers. VoLTE was not a part of my original service plan..but because I needed a New Nano-SIZED sim card for this phone, adding it to my account wasn't as straight forward as it normally is. Once I switch my number to the new sim card, I got an email saying if I wanted VoLTE/VoWiFi(?) features turned on - I'd have to go to another website (Cricket/Verizon/ AT&T?) to register my new sim card and this would "turn on" the VoLTE features. After all this I get a Bright "VoLTE" Icon on the status bar whever i get my LTE signals - So it is VoLTE capable. Perhaps AT&T is doing something similar to get your VoLTE activated?
My plan is to do some testing next week for basic stuff before transferring my flag from my 3T. Will report back how it goes. Appreciate any other Insights from other users!
Sent from my ONEPLUS A3000 using Tapatalk
Fired mine up yesterday when I got it. Got it all set up, then swapped out the SIM from
my Mate 9, to the OP6T this morning. Apparently the "speed" issues I had with the 9
are corrected with the 6T. I use a Straight Talk MVNO (tracfone) at&t card. Previously,
I was LUCKY to get between 9-10 meg down, 1-2 up. Now I'm getting 33 meg down, 15 up.
Guess the newer phone has a better modem, or the extra frequencies to work more proper
with the newer device.
So far, no issues, working good.
After my experience with the OnePlus One, I was still a little cautious about buying something
from them again, but, on the surface so far it appears they might have their act together.
Stay tuned.
I came from a OP3 been using the 6T with ATT prepaid for the past month and it works great. Far superior in speeds to the OP3. For example at my house I was getting download speeds of about 30mbps on my OP3 on the 6T I got over 90mbps LTE+ at home! I keep pissing off my buddy who just got the brand new iPhone XS on ATT and he is getting half the DL speeds that I am when comparing speed tests :victory:. Don't think VoLTE works on prepaid but I have yet to try to enable it. About to go to nebraska for vacation to test service out there.
Bootloader is very easy to unlock. Did it the second day of having the phone following the Official XDA employees youtube video.

Questions Re: International (or Latin) unlocked S10+ or Note10+ / T-Mobile

So I am looking to buy an international (or Latin) version of either the S10+ or the Note 10+.
I am on T-Mobile in the U.S.
1. How "bad" will it be if the phone has 3 out of T-Mobile's main bands? It only lacks 71, so what's the impact will be if I don't have band 71 on this phone with T-Mobile?
2. I read in the forum about flashing T-Mobile firmware on unlocked phones. How necessary is it? I prefer not to mess with flashing anything; done it in the past, I am not 'afraid' of it, but I just don't feel like going that route. Will I be missing anything from the T-Mobile network and services if I keep the phone in its stock ROM?
For example: Wifi Calling (important to me), VoLTE, etc. Will I have access to these features if I don't flash the carrier's firmware?
Thank you.
Band 71 is used only in rural areas where cell towers are very far apart . My phones have never used band 71. If you don't know what bands your phone typically is using you can download a free signal app from the Play Store that will show what band your phone is connected to. Unless you live in a very rural area or frequently find yourself in rural areas it's unlikely you need band 71.
Flashing T-Mobile firmware shouldn't be necessary. I don't have the international S10+ but rather the US unlocked model and I get both WiFi Calling and Volte fine without T-Mobile firmware.
I've used many different models of international unlocked phones from Xiaomi and Huawei on T-Mobile and always got both WiFi Calling and Volte to work with only one exception--the Mate 20 Pro. I had to get rid of that phone even though I really liked it because calls kept going to voicemail without the phone ever ringing first.
It turns out that on T-Mobile if your phone supports band 12 it also needs to support Volte or calls go straight to voicemail without ringing if the caller is using Volte . I never had that problem previously because in 5 years of using international unlocked phones the M20P was the first where Volte didn't work on T-Mobile.
There were lots of posts from T-Mobile customers in the XDA M20P threads about calls going straight to voicemail. I haven't read a single post about that issue with the S10+ so it's pretty safe to assume that the international S10+ works fine with Volte on T-Mobile.
Until the S8 Samsung didn't even sell a US unlocked model--everyone in the US with unlocked Samsung phones were using the international models with the Exynos chip and those phones always worked perfectly with T-Mobile which is very BYOP friendly (unlike AT&T).
The only thing you would be missing on the vanilla Samsung firmware is Visual Voicemail but last I checked you could just download the official T-Mobile Visual Voicemail app from the Play Store.
You would also receive your OTA updates from Samsung rather than T-Mobile but that's actually a plus because the unlocked Exynos models receive updates much more quickly than all of the US models including the unlocked Snapdragon models.
Sorry for the very long answer but I wanted to be thorough.
You should be fine with an international unlocked S10+ on T-Mobile. This is a much better phone than unlocked models from Google Pixel and One Plus so I would recommend going for it.
No manual flashing on your part will be necessary.
@jhs39 - Thank you for your extensive response. It is greatly appreciated!
OK, so I mostly use Band 4 with my current phone, which is one of TMB's main bands, so it seems like that indeed the lack of 71 won't be an issue.
However, how do I know if the Int. version will support VoLTE on the TMB network? I can't see anywhere any information about this phone even supports VoLTE (other than the carrier's model of course).
What about Video Calling?
Thanks again.
sbi1 said:
@jhs39 - Thank you for your extensive response. It is greatly appreciated!
OK, so I mostly use Band 4 with my current phone, which is one of TMB's main bands, so it seems like that indeed the lack of 71 won't be an issue.
However, how do I know if the Int. version will support VoLTE on the TMB network? I can't see anywhere any information about this phone even supports VoLTE (other than the carrier's model of course).
What about Video Calling?
Thanks again.
Click to expand...
Click to collapse
If the international model didn't support Volte on T-Mobile there would be posts on XDA complaining about calls going straight to voicemail without the phone ringing. There were multiple threads about that issue in the M20P section but I haven't seen a single complaint about that happening with the S10+.
This phone has been out since early Spring so if there was a problem using the international model with T-Mobile somebody would have reported it by now.
I don’t know anything about video calling though because I use T-Mobile's network via an MVNO and my carrier doesn't offer video calling.
jhs39 said:
Band 71 is used only in rural areas where cell towers are very far apart . My phones have never used band 71. If you don't know what bands your phone typically is using you can download a free signal app from the Play Store that will show what band your phone is connected to. Unless you live in a very rural area or frequently find yourself in rural areas it's unlikely you need band 71.
Flashing T-Mobile firmware shouldn't be necessary. I don't have the international S10+ but rather the US unlocked model and I get both WiFi Calling and Volte fine without T-Mobile firmware.
I've used many different models of international unlocked phones from Xiaomi and Huawei on T-Mobile and always got both WiFi Calling and Volte to work with only one exception--the Mate 20 Pro. I had to get rid of that phone even though I really liked it because calls kept going to voicemail without the phone ever ringing first.
It turns out that on T-Mobile if your phone supports band 12 it also needs to support Volte or calls go straight to voicemail without ringing if the caller is using Volte . I never had that problem previously because in 5 years of using international unlocked phones the M20P was the first where Volte didn't work on T-Mobile.
There were lots of posts from T-Mobile customers in the XDA M20P threads about calls going straight to voicemail. I haven't read a single post about that issue with the S10+ so it's pretty safe to assume that the international S10+ works fine with Volte on T-Mobile.
Until the S8 Samsung didn't even sell a US unlocked model--everyone in the US with unlocked Samsung phones were using the international models with the Exynos chip and those phones always worked perfectly with T-Mobile which is very BYOP friendly (unlike AT&T).
The only thing you would be missing on the vanilla Samsung firmware is Visual Voicemail but last I checked you could just download the official T-Mobile Visual Voicemail app from the Play Store.
You would also receive your OTA updates from Samsung rather than T-Mobile but that's actually a plus because the unlocked Exynos models receive updates much more quickly than all of the US models including the unlocked Snapdragon models.
Sorry for the very long answer but I wanted to be thorough.
You should be fine with an international unlocked S10+ on T-Mobile. This is a much better phone than unlocked models from Google Pixel and One Plus so I would recommend going for it.
No manual flashing on your part will be necessary.
Click to expand...
Click to collapse
That's odd. I'm using a mate 20X and the although it lacks bands 66 and 71 I don't get calls going to voicemail. In fact when viewing my historical phone signal via gsam app, it shows that I always receive a better signal than even the S10+ that I'm currently using. Both devices on T-Mobile USA.
Sent from my SM-G975U using Tapatalk
sbi1 said:
So I am looking to buy an international (or Latin) version of either the S10+ or the Note 10+.
I am on T-Mobile in the U.S.
1. How "bad" will it be if the phone has 3 out of T-Mobile's main bands? It only lacks 71, so what's the impact will be if I don't have band 71 on this phone with T-Mobile?
2. I read in the forum about flashing T-Mobile firmware on unlocked phones. How necessary is it? I prefer not to mess with flashing anything; done it in the past, I am not 'afraid' of it, but I just don't feel like going that route. Will I be missing anything from the T-Mobile network and services if I keep the phone in its stock ROM?
For example: Wifi Calling (important to me), VoLTE, etc. Will I have access to these features if I don't flash the carrier's firmware?
Thank you.[/QUOTE
I have the Hong Kong variant SM-G975 with T-Mobile. No issues with bands, VoLTE. Wifi Calling or 4G, no impact. You won't need to flash the device.
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Click to collapse
varcor said:
I have the Hong Kong variant SM-G975 with T-Mobile. No issues with bands, VoLTE. Wifi Calling or 4G, no impact. You won't need to flash the device.
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Click to collapse
Thanks @varcor . What about Video calling?
BTW - is it 975F or something else?
I use Skype for Video Calling, it works fine. Mine is an SM-G9750, the best price I've seen is on Ebay. The only issue is when you first get the device you'll need to change the language since it's setup in Mandarin. A bit challenging but not a big deal. The Ebay vendor is in Houston which is where the device ships from, only takes a few days.
https://www.ebay.com/itm/Samsung-Ga...im-FACTORY-UNLOCKED-6-4-8GB-RAM-/192846270776
varcor said:
I use Skype for Video Calling, it works fine. Mine is an SM-G9750, the best I've seen is on Ebay. The only issue is when you first get the device you'll need to change the language since it's setup in Mandarin. A bit challenging but not a big deal. The Ebay vendor is in Houston which is where the device ships from, only takes a few days.
https://www.ebay.com/itm/Samsung-Ga...im-FACTORY-UNLOCKED-6-4-8GB-RAM-/192846270776
Click to expand...
Click to collapse
Oh yeah, the legendary Never MSRP.
Sent from my SM-G975U using Tapatalk
Yep, I've bought a number of devices from them, won't use anyone else. Lowest prices, great customer service as well.
varcor said:
I use Skype for Video Calling, it works fine. Mine is an SM-G9750, the best price I've seen is on Ebay. The only issue is when you first get the device you'll need to change the language since it's setup in Mandarin. A bit challenging but not a big deal. The Ebay vendor is in Houston which is where the device ships from, only takes a few days.
https://www.ebay.com/itm/Samsung-Ga...im-FACTORY-UNLOCKED-6-4-8GB-RAM-/192846270776
Click to expand...
Click to collapse
I must the F model. I travel to Israel with a local SIM and they use the F model, and it's the only possibility I have to use their WiFi calling while there. I am not 100% sure it'll work because of firmware but better chances with F model.
Thanks.
Limeybastard said:
That's odd. I'm using a mate 20X and the although it lacks bands 66 and 71 I don't get calls going to voicemail. In fact when viewing my historical phone signal via gsam app, it shows that I always receive a better signal than even the S10+ that I'm currently using. Both devices on T-Mobile USA.
Click to expand...
Click to collapse
Not having bands 66 & 71 don't cause the problem with T-Mobile calls going straight to voicemail--if band 12 is supported on a phone T-Mobile assumes the phone also supports Volte and if it doesn't then you get calls going straight to voicemail.
I'm not familiar with the Mate 20X but before the M20P I had a P20 Pro, Mate 10 Pro and P10 Pro and none of those phones had an issue because T-Mobile Volte worked with all of them.
It's also possible the problem with the P20 Pro was fixed after I got rid of the phone since it was a firmware issue that was fixable in a software update . I kept mine for 6 months before throwing in the towel. The only workaround was to turn off 4G in the network settings. With 4G off you would receive all calls since Volte is a 4G function.
I personally love Huawei phones. Hopefully after Trump is gone all of the nonsense with Huawei being barred from using Google apps and bullied out of the US market will go away but they might decide selling their products here isn't worth the aggravation.
I've also used a bunch of unlocked Xiaomi phones on T-Mobile with no issues. A nice feature in MIUI is that if Volte doesn't work out of the box there's a dial code you can enter to manually enable it.
Band 66 is an offload for band 4 when band 4 traffic is high but if a phone doesn't have band 66 it just stays on 4 so not having 66 on an unlocked phone has never caused any problems for me.
Band 71 is only live in parts of the country and is relatively new. It can transmit a signal over unusually long distances and is used to provide cell coverage in rural areas where it would cost too much to build a full network of cell towers.
jhs39 said:
Not having bands 66 & 71 don't cause the problem with T-Mobile calls going straight to voicemail--if band 12 is supported on a phone T-Mobile assumes the phone also supports Volte and if it doesn't then you get calls going straight to voicemail.
I'm not familiar with the Mate 20X but before the M20P I had a P20 Pro, Mate 10 Pro and P10 Pro and none of those phones had an issue because T-Mobile Volte worked with all of them.
It's also possible the problem with the P20 Pro was fixed after I got rid of the phone since it was a firmware issue that was fixable in a software update . I kept mine for 6 months before throwing in the towel. The only workaround was to turn off 4G in the network settings. With 4G off you would receive all calls since Volte is a 4G function.
I personally love Huawei phones. Hopefully after Trump is gone all of the nonsense with Huawei being barred from using Google apps and bullied out of the US market will go away but they might decide selling their products here isn't worth the aggravation.
I've also used a bunch of unlocked Xiaomi phones on T-Mobile with no issues. A nice feature in MIUI is that if Volte doesn't work out of the box there's a dial code you can enter to manually enable it.
Band 66 is an offload for band 4 when band 4 traffic is high but if a phone doesn't have band 66 it just stays on 4 so not having 66 on an unlocked phone has never caused any problems for me.
Band 71 is only live in parts of the country and is relatively new. It can transmit a signal over unusually long distances and is used to provide cell coverage in rural areas where it would cost too much to build a full network of cell towers.
Click to expand...
Click to collapse
P20 pro was certified and worked fully on T-Mobile , most devices after that were not.
I don't think my mate 20x connected to band 12, but if it did, then yes it'll probably go straight to voicemail.
Sent from my SM-G975U using Tapatalk
sbi1 said:
I must the F model. I travel to Israel with a local SIM and they use the F model, and it's the only possibility I have to use their WiFi calling while there. I am not 100% sure it'll work because of firmware but better chances with F model.
Thanks.
Click to expand...
Click to collapse
The SM-G975F is the Exynos SoC variant for Europe. The SM-G9750 has the Snapdragon SoC and dual SIM's as well. Wifi Calling will work on both devices in any region, including Israel as long as the service provider offers it. The only thing I would recommend is you do some research on Exynos vs Snapdragon SoC's in the S10. Good luck!
varcor said:
The SM-G975F is the Exynos SoC variant for Europe. The SM-G9750 has the Snapdragon SoC and dual SIM's as well. Wifi Calling will work on both devices in any region, including Israel as long as the service provider offers it. The only thing I would recommend is you do some research on Exynos vs Snapdragon SoC's in the S10. Good luck!
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Click to collapse
I am aware of the differences between the two chips.
In regards to WiFi Calling - I am a bit skeptical. This provider does have WiFi calling services, however they have a list of devices that are supported. Clearly they list devices and firmwares that they sell, not BYOD phones, and they sell the F version. I currently use ZTE Axon 7, I have WiFi calling on T-Mobile but it does not work on the Israeli network and when I try to 'register' it for this service through their app, it clearly says that the device is not supported.
That being said - I can't tell you if my phone doesn't work on their WF calling because it's not even sold in Israel. It could very well be that any version of Galaxy S10+ will be supported regardless of firmware. simply because it is sold there. Clearly there is no way to know this beforehand. I asked them, they of course can only guarantee phones that are sold by them and are on the list.
BTW - the Israeli version of the 975F is single SIM, they don't have the D/S, although I can't imagine this should have any impact of phone supporting or not supporting WF calling.
What's the difference between the F and the O, other than the region they are sold in?
Thanks.
Limeybastard said:
P20 pro was certified and worked fully on T-Mobile , most devices after that were not.
I don't think my mate 20x connected to band 12, but if it did, then yes it'll probably go straight to voicemail.
Click to expand...
Click to collapse
Devices don't need to be certified by T-Mobile to work with Volte. All of my recent Xiaomi phones worked with Volte--none of the models were officially sold in the US or certified by T-Mobile. The P20 Pro was not sold in the US so there was zero reason for it to be certified by T-Mobile. The last Huawei phone officially sold here was the Mate 10 Pro. AT&T and Verizon require that devices be certified by them to work with Volte on their networks but T-Mobile does not. T-Mobile is very BYOP friendly.
jhs39 said:
Devices don't need to be certified by T-Mobile to work with Volte. All of my recent Xiaomi phones worked with Volte--none of the models were officially sold in the US or certified by T-Mobile. The P20 Pro was not sold in the US so there was zero reason for it to be certified by T-Mobile. The last Huawei phone officially sold here was the Mate 10 Pro. AT&T and Verizon require that devices be certified by them to work with Volte on their networks but T-Mobile does not. T-Mobile is very BYOP friendly.
Click to expand...
Click to collapse
Thanks for the clarification. So why is it then that same device , but using different sim card would show the Volte toggle or hide it from the user menu? Example, mate 20 does have Volte capabilities yet its missing the Volte toggle switch. I know on the Xioami devices one can enter a #*code to force it show that option. I think what makes it even more convulsing is that Huawei global versions have various region firmware via their Cust codes. Each one I noticed behaves slighly different using same T-Mobile SIM card. Cheers
You mentioned all calls went to VM on up 20pro, why do you think that was the case, you mentioned earlier that you thought possibly it may have been firmware related amongst other things.
Sent from my SM-G975U using Tapatalk
sbi1 said:
I am aware of the differences between the two chips.
In regards to WiFi Calling - I am a bit skeptical. This provider does have WiFi calling services, however they have a list of devices that are supported. Clearly they list devices and firmwares that they sell, not BYOD phones, and they sell the F version. I currently use ZTE Axon 7, I have WiFi calling on T-Mobile but it does not work on the Israeli network and when I try to 'register' it for this service through their app, it clearly says that the device is not supported.
That being said - I can't tell you if my phone doesn't work on their WF calling because it's not even sold in Israel. It could very well be that any version of Galaxy S10+ will be supported regardless of firmware. simply because it is sold there. Clearly there is no way to know this beforehand. I asked them, they of course can only guarantee phones that are sold by them and are on the list.
BTW - the Israeli version of the 975F is single SIM, they don't have the D/S, although I can't imagine this should have any impact of phone supporting or not supporting WF calling.
What's the difference between the F and the O, other than the region they are sold in?
Thanks.
Click to expand...
Click to collapse
You're correct regarding Single SIM for the SM-G975F, the Dual SIM option is available in the SM-G975F/DS. I personally wouldn't consider obtaining a device in Israel if the majority of the time I'm the US. The major differences are SoC's, a minor difference in CPU Clock Speed and Cores. The SM-G975F has no FM Radio and offers fewer Primary Network capabilities. You can view a back-to-back comparison here.
https://www.phonemore.com/compare/p...gb-vs-galaxy-s10-plus-sm-g9750-128gb/10134260
This is quite different than your original question but with that being stated I would be confident enough in the SM-G9750's compatibility with the Israeli network for Wifi Calling. The worst case is not having Wifi Calling in Israel, which isn't an absolute necessity however you'll have the Snapdragon SoC which is a far better chipset with fewer bugs. For me it's the obvious choice if I were faced with your considerations.
You're most welcome
varcor said:
You're correct regarding Single SIM for the SM-G975F, the Dual SIM option is available in the SM-G975F/DS. I personally wouldn't consider obtaining a device in Israel if the majority of the time I'm the US. The major differences are SoC's, a minor difference in CPU Clock Speed and Cores. The SM-G975F has no FM Radio and offers fewer Primary Network capabilities. You can view a back-to-back comparison here.
https://www.phonemore.com/compare/p...gb-vs-galaxy-s10-plus-sm-g9750-128gb/10134260
This is quite different than your original question but with that being stated I would be confident enough in the SM-G9750's compatibility with the Israeli network for Wifi Calling. The worst case is not having Wifi Calling in Israel, which isn't an absolute necessity however you'll have the Snapdragon SoC which is a far better chipset with fewer bugs. For me it's the obvious choice if I were faced with your considerations.
You're most welcome
Click to expand...
Click to collapse
SoC, meaning the chip?
You see, your definition of "worst case not having Wifi calling" is important to me , simply because where I usually stay in Israel there is almost no reception at all (inside the house I am staying in), that's the main reason I want a device that will be able to use their Wifi calling.
Also, I looked at the eBay seller that you mention and I don't even think he carries the O model any more, all I see is the F model, unless of course I am missing something.
Thanks.
sbi1 said:
SoC, meaning the chip?
You see, your definition of "worst case not having Wifi calling" is important to me , simply because where I usually stay in Israel there is almost no reception at all (inside the house I am staying in), that's the main reason I want a device that will be able to use their Wifi calling.
Also, I looked at the eBay seller that you mention and I don't even think he carries the O model any more, all I see is the F model, unless of course I am missing something.
Thanks.
Click to expand...
Click to collapse
SoC is System on Chip, same as Chipset. If Wifi calling is a top priority buy the Exynos device to be certain but be advised there are numerous concerns over the chipset on XDA and other sites, plus Network Aggrigaton for Exynos in the US has issues with some T-Mobile clients. You may lose Wifi Calling or VoLTE in the US.
https://forum.xda-developers.com/s10-plus/help/exynos-att-t-mobile-t3920491
They still offer the SM-G9750, the link I shared is correct, not sure you missed something. The also sell the SM-G975F and SM-G975F/DS.

Unlocked firmware to Verizon firmware for WiFi calling

I have an unlocked Moto g7 that I bought from Best buy. It is the stock firmware, and I know it is unlocked firmware because there was no bloatware.
The only problem is I live in a basement where my connection is spotty (at best) and Verizon doesn't allow unlocked firmware to use WiFi calling.
Is it possibly to get WiFi calling by flashing the Verizon firmware onto my device? If so, where would I look to get that firmware? All I can seem to find is lineage, which I don't think would solve my issue.
No such thing for Moto G7. You can either flash RETAIL, AMAZON, or RETUS firmwares from lolinetmirrors. They all work for Verizon
Sad day. I know this may be a dumby question, but is there a Verizon stock firmware I could flash to the Moto g7? Like, from the Moto g7 play/power? Or is that a big no-no?
No-No. Firmwares are not interchangeable between models.
Aight. Looks like I am doomed to live a life without WiFi calling.
I have Verizon. Moto G 7 river. Currently running Lineage. I have WiFi calling.
Interesting. Maybe I'll have to give lineage a try
Phalanx7621 said:
I have Verizon. Moto G 7 river. Currently running Lineage. I have WiFi calling.
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Click to collapse
@Phalanx7621 could you verify that WiFi calling actually does activate? I've read another forum that said they had the option listed, but when they switched it on, it would have switched back off when they returned to the setting. This makes me wonder if maybe LineageOS supports the option, but it still won't work with Verizon.
This is one of the other forums I read: https://www.reddit.com/r/LineageOS/comments/ah6290/enabling_wifi_calling/
ZZwanzig said:
@Phalanx7621 could you verify that WiFi calling actually does activate? I've read another forum that said they had the option listed, but when they switched it on, it would have switched back off when they returned to the setting. This makes me wonder if maybe LineageOS supports the option, but it still won't work with Verizon.
This is one of the other forums I read: https://www.reddit.com/r/LineageOS/comments/ah6290/enabling_wifi_calling/
Click to expand...
Click to collapse
I've installed a few hacks to and gotten as far as entering my address but wifi calling never actually works.
I tried to flash the vendor.img from the Verizon ocean version and no luck. I tried to extract the files form the vendor img from the Verizon ocean and make a magisk module but could not get it to work.
If WiFi calling actually works with LOS, please let us know. I would flash in a second as i have to use an old 1x extender at home because i live in the boonies and am too cheap to buy a new one.

Replacement for V20 - No VoLTE Outside of Stock

Hi guys,
I realize that the main carriers in the US will be dropping the old network protocols in 2022, which means my current V20 will no longer work for voice calls. From what I gather, I'd need to run a stock/stock-based ROM to get VoLTE working, which is a deal breaker for me. I need recent security updates and modern Android releases on my phones.
With that being said, any thoughts on a replacement device this coming year? I will certainly miss the replaceable battery the most. Is there a device you recommend that has a relatively easy battery to replace? Honestly, the phone is used for light browsing, email, etc. Pictures and movies are frequently taken from it, so a good camera is a must. The memory card is paramount today, but unsure how long this can last. A device with an active development history with root access, should it be needed, is required for this replacement.
I've been spoiled with the V20 for years now. I just don't know where to start replacing it. Your opinions are greatly appreciated!
The options in the U.S. for a proper replacement are slim to none, depending on your priorities. I don't know much about how easy it is to replace batteries for newer phones, but I can give you an overview for most of the other stuff:
- Phones with hand-removable batteries: Probably not worth going for at this point. Most have specs that are barely better than the V20 with lower screen resolutions, and spare batteries are much less common to find for them. And half of them are from Europe and therefore have almost zero usable LTE bands in the U.S.
- Phones with non-stock custom ROMs that have VoLTE working in the U.S.: Probably limited to the Google Pixels, Motorola, and OnePlus models. Forget about all LG and Samsung phones here since they both use closed-source proprietary files that makes it pretty much impossible for anyone to figure out how to get VoLTE and other stock features to work on AOSP or LineageOS-type ROMs. And unfortunately, Pixels and the higher end OnePlus phones have no microSD card slots, and Motorola phones haven't been known for top quality cameras in a long time.
- Others: There are also Sony phones, but their higher end models are so expensive that I never bothered looking far into any of them.
So, it looks like you'll have to decide which features are must-haves for you and which are OK to let go in order to widen your options a bit.
C D said:
The options in the U.S. for a proper replacement are slim to none, depending on your priorities. I don't know much about how easy it is to replace batteries for newer phones, but I can give you an overview for most of the other stuff:
- Phones with hand-removable batteries: Probably not worth going for at this point. Most have specs that are barely better than the V20 with lower screen resolutions, and spare batteries are much less common to find for them. And half of them are from Europe and therefore have almost zero usable LTE bands in the U.S.
- Phones with non-stock custom ROMs that have VoLTE working in the U.S.: Probably limited to the Google Pixels, Motorola, and OnePlus models. Forget about all LG and Samsung phones here since they both use closed-source proprietary files that makes it pretty much impossible for anyone to figure out how to get VoLTE and other stock features to work on AOSP or LineageOS-type ROMs. And unfortunately, Pixels and the higher end OnePlus phones have no microSD card slots, and Motorola phones haven't been known for top quality cameras in a long time.
- Others: There are also Sony phones, but their higher end models are so expensive that I never bothered looking far into any of them.
So, it looks like you'll have to decide which features are must-haves for you and which are OK to let go in order to widen your options a bit.
Click to expand...
Click to collapse
Thanks for taking the time. I really appreciate the input. Yeah, this is pretty much what I expected. The reason I am leaving the V20, and also a Samsung Note 4 isn't because they no longer work for me, but because of the VoLTE push. It makes me sad. ;(
I have looked at the removable battery options, and to your point, the specs are horrible. I don't think a truly removable battery will work. However, if there's a phone with a non-removable battery that doesn't take an act of God to change, that would be an option.
I do not want to spend hundreds and hundreds of dollars every couple of years for a new device. Custom ROMs have made these devices last years and years. It's also better for the environment. I don't need 20 cores and a TB of RAM in a phone based on my use cases unlike everyone seems to think they do. Without the ability to custom ROM, once the manufacturer ditches the device, it forces one to spend again even though it could last many more years. It seems many aren't really too worried or informed about running a computer in your pocket missing critical security updates. These truths irk the **** out of me!
I wonder if a Pixel would suffice despite the lack of external storage... I know they get updates pretty quickly, are being supported for like 5 years by Google, etc. I think development is pretty active for them too, but I'll have to investigate. The Sony suggestion was a good one to mention, but yeah, ridiculous in price.
I guess I'll start there. If anyone else has other suggestions or advice, I greatly appreciate it. I haven't had to stay up with things because of these wonderful devices and the plethora of options over the years. All good things must come to an end...
I, too, would like to find a more current phone with an easily replaceable battery (pref. without using a heat gun). But it needs to be rootable.
The Galaxy Xcover Pro looked promising (replaceable battery), but isn't rooted.
Wish the Fairphone would come to the states.
Anyone else care to share?
From what I have read, any device that has 3g, phones or other devices - are screwed. All forced upgrade.
Mysticblaze347 said:
From what I have read, any device that has 3g, phones or other devices - are screwed. All forced upgrade.
Click to expand...
Click to collapse
Yup, exactly. So, coming from a V20, and based on my loose requirements above, have you any suggestions for a new device?
DaCHeF36 said:
Yup, exactly. So, coming from a V20, and based on my loose requirements above, have you any suggestions for a new device?
Click to expand...
Click to collapse
I wish I did. Removable battery and specs is key. Then features. All phones in the US are non removable battery that are 5G able which is required at most if not all carriers. I personally am with Sprint - well now Tmobile. I still have my V20 (out of service). Free downgrade was Samsung A71 5G. It sucks. Decent specs with no OEM Unlock. No current support anywhere to root.
I have been looking but no luck so far.
Mysticblaze347 said:
I wish I did. Removable battery and specs is key. Then features. All phones in the US are non removable battery that are 5G able which is required at most if not all carriers. I personally am with Sprint - well now Tmobile. I still have my V20 (out of service). Free downgrade was Samsung A71 5G. It sucks. Decent specs with no OEM Unlock. No current support anywhere to root.
I have been looking but no luck so far.
Click to expand...
Click to collapse
Yeah, North American Samsung phones have locked bootloaders. The only current way to get some of them rooted is if they haven't been updated past a certain date due to anti-rollback (Sounds awfully familiar to us LS997 owners, doesn't it?) and then go through a paid service like this one (you can see the supported devices and required software versions – bootloader version numbers are the 5th digit from the right in the baseband version – in the 2nd post).
My understanding is that our phones (V20) will continue to work for now since they have 4g. Yes, we can also access the 3g band, but my phone rarely switches to it. We should be fine for a while on the V20 on 4g.
PS - That's presuming our phones are stock or near-stock and still have functioning VoLTE / HD calls. Stock Android and A_O (Alpha Omega) ROM has this. I believe these phones are safe to use in 2022 and beyond when 3g drops.
baldybill said:
My understanding is that our phones (V20) will continue to work for now since they have 4g. Yes, we can also access the 3g band, but my phone rarely switches to it. We should be fine for a while on the V20 on 4g.
PS - That's presuming our phones are stock or near-stock and still have functioning VoLTE / HD calls. Stock Android and A_O (Alpha Omega) ROM has this. I believe these phones are safe to use in 2022 and beyond when 3g drops.
Click to expand...
Click to collapse
Right, but it also depends on what the carrier supports as AT&T and Verizon use whitelists.
In the U.S., VoLTE support on the American V20 models goes something like this (and of course stock-based ROMs are a must for this):
- H910 gets VoLTE on AT&T and its MVNOs
- H918 gets VoLTE on T-Mobile and its MVNOs
- VS995 gets VoLTE on Verizon and its MVNOs
- US996 may get VoLTE on some of the above. I've gotten it to work on T-Mobile, 1 out of 2 T-Mobile MVNOs (worked on Tracfone's T-Mobile card but not Liberty Wireless), and an AT&T MVNO (Red Pocket's GSMA).
- LS997 is not configured to have VoLTE out of the box, so any LS997 that has been updated past May 2017 will for sure soon be useless in the U.S. for making and receiving phone calls. For the few of us who still have the older rooted LS997 models, I will soon look into installing Alpha Omega ROMs from the US996 to see if VoLTE can get enabled through there since the hardware is likely present, but I'm not getting my hopes up.
baldybill said:
My understanding is that our phones (V20) will continue to work for now since they have 4g. Yes, we can also access the 3g band, but my phone rarely switches to it. We should be fine for a while on the V20 on 4g.
PS - That's presuming our phones are stock or near-stock and still have functioning VoLTE / HD calls. Stock Android and A_O (Alpha Omega) ROM has this. I believe these phones are safe to use in 2022 and beyond when 3g drops.
Click to expand...
Click to collapse
I'm not 100% sure about the V20, but I know the Note 4 has 4G, but for data only. It requires calls over 3G on non-stock ROMs. I don't run stock LG ROMs because they are way behind on security updates. Just upgraded to LOS 18.1 giving me security updates from 12/2021. It's much safer.
If you mean that VoLTE will work on a stock-base ROM, you are probably correct. However, that's not an option for me, and in reality, it really shouldn't be for others too! Many, many people are either ignorant to or just don't care about security. There are so many vulnerabilities, including RCE ones, addressed constantly. This is a handheld computer, so it's just like leaving unpatched systems on your network. If you're running Windows 7 still, for example, you're asking to get owned. Bad idea.
Thanks for your feedback though. It is appreciated! If you have any replacement recommendations, I am all ears!
I'll be watching this thread to see where others land, as far as their next device.
Both my wife and I have US996's on Verizon. I'm on A-O Oreo with HD calling enabled. Hers is not on A-O Oreo, hd calling is enabled in the account, but I can't get the toggle in the settings to be "un-greyed". Tried the trick to turn it on and off online, but the page errors out everytime. Guess I'll have to make the time to get her phone flashed to see if that fixes it.
All that aside, I too have been facing the same dilemma as the OP. SD card, root, and straight forward disassembly would be my main needs. IR blaster would be nice. I don't mind replacing a non-removable battery, have disassembled many devices requiring heat.
pistacios said:
I'll be watching this thread to see where others land, as far as their next device.
Both my wife and I have US996's on Verizon. I'm on A-O Oreo with HD calling enabled. Hers is not on A-O Oreo, hd calling is enabled in the account, but I can't get the toggle in the settings to be "un-greyed". Tried the trick to turn it on and off online, but the page errors out everytime. Guess I'll have to make the time to get her phone flashed to see if that fixes it.
All that aside, I too have been facing the same dilemma as the OP. SD card, root, and straight forward disassembly would be my main needs. IR blaster would be nice. I don't mind replacing a non-removable battery, have disassembled many devices requiring heat.
Click to expand...
Click to collapse
Sorry to hear you're in the same predicament...
I'm trying to justify my SD requirement these days. Why is it one for you exactly?
DaCHeF36 said:
Sorry to hear you're in the same predicament...
I'm trying to justify my SD requirement these days. Why is it one for you exactly?
Click to expand...
Click to collapse
Mainly because if anything happens where I can't access internal phone storage due to hardware failure, at least I know I can salvage data from the SD card externally.
C D said:
Right, but it also depends on what the carrier supports as AT&T and Verizon use whitelists.
In the U.S., VoLTE support on the American V20 models goes something like this (and of course stock-based ROMs are a must for this):
- H910 gets VoLTE on AT&T and its MVNOs
- H918 gets VoLTE on T-Mobile and its MVNOs
- VS995 gets VoLTE on Verizon and its MVNOs
- US996 may get VoLTE on some of the above. I've gotten it to work on T-Mobile, 1 out of 2 T-Mobile MVNOs (worked on Tracfone's T-Mobile card but not Liberty Wireless), and an AT&T MVNO (Red Pocket's GSMA).
- LS997 is not configured to have VoLTE out of the box, so any LS997 that has been updated past May 2017 will for sure soon be useless in the U.S. for making and receiving phone calls. For the few of us who still have the older rooted LS997 models, I will soon look into installing Alpha Omega ROMs from the US996 to see if VoLTE can get enabled through there since the hardware is likely present, but I'm not getting my hopes up.
Click to expand...
Click to collapse
Crossing my fingers that my US996 (w/AO Rom) will work with Verizon. So far, I can toggle the "HD Calls" switch in the settings, so I'm hopeful.
If not, I'll prob. use the VS995.
pistacios said:
Mainly because if anything happens where I can't access internal phone storage due to hardware failure, at least I know I can salvage data from the SD card externally.
Click to expand...
Click to collapse
That makes perfect sense. BTW, pistachios rock! lol..
baldybill said:
Crossing my fingers that my US996 (w/AO Rom) will work with Verizon. So far, I can toggle the "HD Calls" switch in the settings, so I'm hopeful.
If not, I'll prob. use the VS995.
Click to expand...
Click to collapse
My US996 w/A-O on Verizon has made calls over 4gLTE. The only way I'm able to confirm that is if the recipient of the call is also "HD calling", it will show an "HD" icon in green during the call.
Really wish I could figure out WIFI calling. That would probably take flashing a VS995 ROM, and that still is a gamble.
Another wish would be if LG would have just released the propietary files to make it all work with a Lineage based ROM, since they are no longer in the mobile game and have closed the bootloader unlock service as of late November.
Does anyone share concerns over running stock-based software that hasn't been updated for years to continue using these devices? Are you aware of the critical vulnerabilities released monthly for Android OSes? I just want to make sure everyone understands the risks of such an approach.
pistacios said:
Really wish I could figure out WIFI calling. That would probably take flashing a VS995 ROM, and that still is a gamble.
Click to expand...
Click to collapse
Wi-Fi calling is heavily carrier-based, and since there never was a universal all-carrier USA V20 model, you almost certainly have to be on VS995 firmware to get it. Another lesser-known thing to try would be changing your US996's IMEI number to another one that still passes Verizon's IMEI check if you happen to have a phone like that around. I cannot openly discuss the method here since it's illegal in some countries (but not the U.S. – more info here) but it's quite simple to do, and you can message me if you need some pointers. This can be done on my LS997 and US996 but not the H918.
DaCHeF36 said:
Does anyone share concerns over running stock-based software that hasn't been updated for years to continue using these devices? Are you aware of the critical vulnerabilities released monthly for Android OSes? I just want to make sure everyone understands the risks of such an approach.
Click to expand...
Click to collapse
To me, it mainly depends on what you do on your phone. My usage is likely quite different from yours. You can see my view on this and what my post-V20 daily driver phone has been since September in a similar topic thread on the V20 Subreddit from a few months ago.
And if you want to have a deeper look, you can see most of the stuff of what I've been running on my V20s over here.

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