Import a dual sim variant to UK? - HTC U Ultra Questions & Answers

Hi,
There are lots of dual sim models on eBay. Not clear which country they are sourced from but they *seem* to support U.K. LTE bands?
Any issues with importing? Not worried about tax etc I am referring to the software experience. I assume it's in English with google play store etc? Anything to worry about?
Thanks,
Neil

RealEvil said:
Hi,
There are lots of dual sim models on eBay. Not clear which country they are sourced from but they *seem* to support U.K. LTE bands?
Any issues with importing? Not worried about tax etc I am referring to the software experience. I assume it's in English with google play store etc? Anything to worry about?
Thanks,
Neil
Click to expand...
Click to collapse
Hey Neil.
Most of the dual sim ones would be from either Taiwan or Hong Kong, and should carry the model number of U-1u. They shouldnt be any different from your local UK model, bar the exception of:
1. Warranty - You would not receive support locally from UK based retailers or HTC without additional cost.
2. VoLTE / VoWiFi or other carrier dependent features - Specific features such as VoLTE or VoWifi would require a handset running firmware that has been customised by a local carrier. If you're using a carrier that isnt carrying the U Ultra, then there wouldnt be a difference here. You will still be able to access LTE (via the correct APN setting) and make phone calls via 3G, as per 95% of phones out there.

Related

Using on At&t?

I'd like to buy this and use on AT&T.
What hoops do I have to jump through to make this happen?
The frequencies are supported (don't care about LTE).
For example if I buy unsubsidized on Amazon, do I have to call Verizon up and get a code from them that will let me use it on AT&T and other GSM carriers?
It's locked for US GSM bands, as far as I know. P3Droid has said that they're working on getting it unlocked. I'm sure we'll hear about it when it happens.
I bought my RAZR M at Amazon (Verizon, without contract) and i use it in Germany with O2 Provider.
No Problem, nothing needed. It´s not locked.
Sam_11 said:
It´s not locked for international GSM bands.
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Click to collapse
Fixed that for you.
freak4dell said:
Fixed that for you.
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Click to collapse
Correctamundo (sp). In further searching it looks like they block the MNC for at&t and t-mobile inside the radio firmware NV settings. Also there is a pesky "unknown sim" or something that pops up every bootup.
Working in India/Asia ?
Hi,
I'm planning to buy one in my visit to US next week. I intend to use it with GSM India.
Has anyone used the phone with GSM provider in India or other asian countries? I was told that GSM capabilities works only in european countries , so wanted to make sure of it before I buy it.
Thanks
Just check and make sure the bands that your network uses are supported. It supports all the standard GSM bands, so I don't see why it wouldn't work.

[Q] Help! What version?

I want to use the phone on Lycamobile, or possibly Pageplus in the US, once they accept 4G phones, and use local sim cards in Europe.
What version would be the best one to get?
Unlocked N9005?
T-mobile version?
Verizon?
I have several EU sim cards that I could use to activate the unlocked EU version, which should prevent any region lock problems, from what I've been reading.
But I could also unlock a US version (by paying for it, since I won't sign up with any carrier in the US and just use pay as you go providers)?
Which one of the many versions would be the best bet for international use?
I'd go with T-Mobile, although with the N9005 you won't be able to use LTE/4G in the US. Only H+
radicalisto said:
I'd go with T-Mobile, although with the N9005 you won't be able to use LTE/4G in the US. Only H+
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And with the T-Mobile version, you can get LTE/4G in the US and Europe?
Only in the US - In Europe it'd be H+ only -
radicalisto said:
Only in the US - In Europe it'd be H+ only -
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Click to collapse
Thanks!
So, there is no version that will get you LTE/4G everywhere?
Can bands be unlocked by rooting?
Nope can't get LTE everywhere, no way to change the bands currently on the Note 3 that I have seen. It may be possible but I don't think it is.
siskiou said:
Thanks!
So, there is no version that will get you LTE/4G everywhere?
Can bands be unlocked by rooting?
Click to expand...
Click to collapse
So for the answers are negative
So IMHO you should look at something:
- ideally without a locked bootloader
- ideally with a clear statement of warranty regarding the Knox flag
- the phone can be network-locked to provider as long as you can find one of the services giving you an network-unlock code for 15-20$ or so
- the region-lock could be a problem - on unlocked phones it is very hard to remove without rooting; surprisingly it is said that on network-locked phones the region lock is also removed when you enter the network-unlock code
- the phone should at least work over LTE in the countries where you HAVE it (or afford it) and where you NEED it.

[Q] Please help me figure out which model to get

I’m coming from a Nexus 5 and trying to figure out which model of Note 4 to get. I've read a lot on this and am still finding it all very confusing with so many Note 4 models and rumors of region/continent-locking.
I'm in Canada and need something penta-band 3G support and support for LTE on at least Bell in Canada. I regularly use a T-Mobile SIM in the US and other SIMs in Asia-Pacific and Europe when I travel. I have read that the Note 4 models are region-locked by continent.
Fortunately it does look like CanadaGSM is selling a bunch of different unlocked models including the W8 and the T. From their site it seems that the W8 model would give me the most frequency support but isn't this the model that Bell, Rogers, and other Canadian carriers are selling? If that's the case, why do the sites of those carriers list fewer bands (e.g. no 1700 support except from Wind).
Is it true that the Note 4 is continent-locked? For example if I get a W8 can I use it with SIMs in Asia-Pacific and Europe when I travel as I do with my Nexus 5?
If I'm going to spend $800 on an unlocked Note 4 it had be truly unlocked.
Thanks in advance for any helpful answers.
I think the N910W8 is the model for you. http://pdadb.net/index.php?m=specs&id=6798&c=samsung_sm-n910w8_galaxy_note_4_lte-a_samsung_muscat
The carriers not listing 1700 support probably don't use 1700 to begin with. The W8 definitely supports 1700.
Not entirely sure about the continent locking issue. I've heard about it but I think it only applies to carrier models.
910u.
So in theory if I get a W8 and unlock it I should be fine. That would actually be helpful as I could get it on contract from Bell a lot cheaper.
2xbass said:
Is it true that the Note 4 is continent-locked? For example if I get a W8 can I use it with SIMs in Asia-Pacific and Europe when I travel as I do with my Nexus 5?
If I'm going to spend $800 on an unlocked Note 4 it had be truly unlocked.
Thanks in advance for any helpful answers.
Click to expand...
Click to collapse
Yes, your Note 4 is region locked.
BUT the lock works this way: you buy your phone in the US and it's locked to any other SIM other than a US one. Once you insert a US sim into it and make a 5-minute call, it will be unlocked for all SIM cards and you can use it anywhere in the world.
What a lot of people don't know -and it's not their fault, so much misinformation on the internet- is that the lock is not supposed to prohibit users from using their phones while travelling or anything crazy like that. It's Samsung's attempt against grey imports. So that, for example, a device meant to be sold in Europe would not be sold in the US and vice versa. Once you get your phone and activate it with a SIM from your region, you can freely use it anywhere you go.
Thanks for the clarification.
iridaki said:
Yes, your Note 4 is region locked.
BUT the lock works this way: you buy your phone in the US and it's locked to any other SIM other than a US one. Once you insert a US sim into it and make a 5-minute call, it will be unlocked for all SIM cards and you can use it anywhere in the world.
What a lot of people don't know -and it's not their fault, so much misinformation on the internet- is that the lock is not supposed to prohibit users from using their phones while travelling or anything crazy like that. It's Samsung's attempt against grey imports. So that, for example, a device meant to be sold in Europe would not be sold in the US and vice versa. Once you get your phone and activate it with a SIM from your region, you can freely use it anywhere you go.
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Click to collapse
Just want to confirm that this does all work as expected. I got a Note from Bell yesterday and it's an SM-910W8. As expected it would not take a SIM from another carrier. I made a call on it and then unlocked it with a code from cellunlocker.net and after that it was able to take a SIM from Vodafone in Australia as well as one from T-Mobile.
Loving this phone so far!

Will Korea version of V20 be usable outside Korea?

I plan for vacation in South Korea next month and I assume the device will be available there and I plan to buy it there.
But I heard issues that smartphone bought in South Korea cannot be used in other country. Is that true?
Sent from my LG-D802 using Tapatalk
simorangkir_dcs said:
But I heard issues that smartphone bought in South Korea cannot be used in other country. Is that true?
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Click to collapse
I don't know about that, but here are some things to consider:
1) Make sure that it has all the bands for your other country carrier
2) At least in the USA, the V20 is expected to be available only through the carriers (E.g. T-Mobile, AT&T) and without a general unlocked version that works with all the supported carriers. That means that a Korean phone may not have specific software for USA such as VoLTE and VoWiFi.
I would recommend getting the V20 version from/for the carrier you plan to use it on unless you can verify all the other carrier's features are supported using the Korean version.
haris163 said:
I don't know about that, but here are some things to consider:
1) Make sure that it has all the bands for your other country carrier
2) At least in the USA, the V20 is expected to be available only through the carriers (E.g. T-Mobile, AT&T) and without a general unlocked version that works with all the supported carriers. That means that a Korean phone may not have specific software for USA such as VoLTE and VoWiFi.
I would recommend getting the V20 version from/for the carrier you plan to use it on unless you can verify all the other carrier's features are supported using the Korean version.
Click to expand...
Click to collapse
B&H Photo/Video typically sells unlocked flagship phones that work with US GSM Networks (AT&T/T-Mobile & the MVNO's that operate on their networks).
https://www.bhphotovideo.com/c/buy/smartphones/ci/24039/N/3955685938
I wouldn't rule out the possibility,unless you're using VZW or Sprint as your service provider.
all Korean phones are unlocked internationally, just locked region. if you buy kt you cant use it on sk or LG U+. i made sure when i bought the lg v20 because ill be in the Philippines for vacation. KT phones seem to always work with AT&T

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.
Click to expand...
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
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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!
Click to expand...
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.
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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
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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.
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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.

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