5G problem of US variant in other country - Sony Xperia 1 II Questions & Answers

I'm in US and want to buy a X1 ii now. But I do have some questions:
1. I know the US version does not support 5G. But is it the carrier issue or the US version lacks some hardware? If I use the US version in Hong Kong or Taiwan, will it work on 5G or should I flash some ROM to enable it? (in other words, are the hardwares all the same in different versions?)
2. The US version only has one SIM while I prefer a dual SIM version. So if I managed to get a HK version or EU version, can I use it in US without too much trouble? Will the other versions have 5G in US?
Thanks!

1. The US model is the same as the single SIM EU model. It works with 5G when flashed with the correct FW.
2. You can only use it with US carriers with US FW, since you need that to enable VoLTE provisioning on US carriers which will soon drop 3G in favor of VoLTE only. And US FW doesn't support dual SIM, though it can be flashed on a dual SIM model.

nebula9 said:
1. The US model is the same as the single SIM EU model. It works with 5G when flashed with the correct FW.
2. You can only use it with US carriers with US FW, since you need that to enable VoLTE provisioning on US carriers which will soon drop 3G in favor of VoLTE only. And US FW doesn't support dual SIM, though it can be flashed on a dual SIM model.
Click to expand...
Click to collapse
Thanks! According to your answer, if I'm going to stay in US for a while, a US version with US firmware is necessary to enjoy VoLTE (but never 5G in US). And I could flash it with, say Asian firmware, to use 5G in other regions than US. The dual SIM version, although not sold in US, can be used in the same way as mentioned here. Am I right?

MJosephJ said:
Thanks! According to your answer, if I'm going to stay in US for a while, a US version with US firmware is necessary to enjoy VoLTE (but never 5G in US). And I could flash it with, say Asian firmware, to use 5G in other regions than US. The dual SIM version, although not sold in US, can be used in the same way as mentioned here. Am I right?
Click to expand...
Click to collapse
Yes, though when running the US firmware it will ignore a second SIM.

nebula9 said:
Yes, though when running the US firmware it will ignore a second SIM.
Click to expand...
Click to collapse
Thanks a lot! It seems like Sony's marketing is pretty bad. Customers need to DIY a lot.

Related

How to change SM-N9500 CSC to T-mobile for VoLTE and Wifi Calling?

My note 8 is SM-N9500 TGY Hong Kong (Un-branded Chinese Snapdragon 835 Dual SIM, Unlocked Bootloader) How do I change the CSC in order for VoLTE and wifi calling to work with US T-Mobile?
I have the same problem. I'm very curious
I have same problem
Hello, I've seen on french forum that it's not possible
Can you guys confirm LTE works on T-Mobile in the US?
Hi!
I have also SM-N9500 csc is TGY(HONGKONG)
you can check here
http://www.phonemore.com/compare/phones/galaxy-note-8-sm-n950fd-vs-galaxy-note-8-sm-n9500/6303040
it is only Rom problem,
normaly SM-N9500 much more capable from SM-N950FD,
but i think china don't give a permissions for video calling,
and our SM-N9500 has a software barrier for this.
Are there any people will solve this problem?
Yes I also have hk sm-9500 with no video call button on dialpad and no wifi calling feature. Pls help enable them both. Thanks.
I would imagine you should be able to flash a T-Mobile N950U ROM on the 9500 if it is also Snapdragon, and that should in theory make it essentially the same as a 950U, though I am not sure if the 9500 has the right LTE bands. T-Mobile primarily uses LTE bands 2, 4, and 12 in most areas (mostly band 4 near me).
So far as I know you can use Korean Rom (N950N I guess) on N9500 but ODIN will not allow it, you need to root and flash by TWRP
Jester646 said:
So far as I know you can use Korean Rom (N950N I guess) on N9500 but ODIN will not allow it, you need to root and flash by TWRP
Click to expand...
Click to collapse
This will probably brick his phone.
The 9500 is Snapdragon like the 950U, while the N and F are Exynos.
Hi Guys, did so far anyone find any solution for this issue? i'm sitting in 2019 and still looking for a solution. please help!

Recommended Exynos Galaxy Note 8

Hello everyone,
I'm looking to buy the best possible Exynos Galaxy Note 8, and I'm surprised and lost on the number of models available.
Would N950N be a good choice? I would like to replace the ROM by a stock-based one as usual, install TWRP, root, etc.
Would this model work in Brazil and USA on roaming?
Any help is greatly appreciated!
david.lynch said:
Hello everyone,
I'm looking to buy the best possible Exynos Galaxy Note 8, and I'm surprised and lost on the number of models available.
Would N950N be a good choice? I would like to replace the ROM by a stock-based one as usual, install TWRP, root, etc.
Would this model work in Brazil and USA on roaming?
Any help is greatly appreciated!
Click to expand...
Click to collapse
it works, but you'll end up flashing a 950F-based ROM anyway as all the development is using those as a base.
as for "works in Brazil and USA on roaming" that entirely depends on which bands you need.
Kalm_Traveler said:
it works, but you'll end up flashing a 950F-based ROM anyway as all the development is using those as a base.
as for "works in Brazil and USA on roaming" that entirely depends on which bands you need.
Click to expand...
Click to collapse
So we could assume that N950F would be a better choice or doesn't matter anyway?
david.lynch said:
So we could assume that N950F would be a better choice or doesn't matter anyway?
Click to expand...
Click to collapse
They are identical hardware, and if you are flashing a ROM anyway the software won't matter either.
The only real consideration I can think of is internal storage, since I believe the 950F is still only available as 64gb, while the N can be bought in a 256gb version.
Get the UK or UAE unlocked dual sim 64 gb version. I have the UK one from Samsung UK. I have my UK EE sim and AT&T sim active. I'm on rooted magisk Dr. Ketan Rom N4 with Iron Kernel 1.1.2. OEM UNLOCK available immediately and still post rom install. Wonda Mobile has the UAE version.
You can get the 950F 128GB in mexico
I really prefer to have the 6GB/256GB Exynos version, so N950N seems a good choice.
david.lynch said:
I really prefer to have the 6GB/256GB Exynos version, so N950N seems a good choice.
Click to expand...
Click to collapse
No such thing as a 256GB Exynos version, it'll be a Snapdragon.
wilcouk said:
No such thing as a 256GB Exynos version, it'll be a Snapdragon.
Click to expand...
Click to collapse
Yes, there is. Single sim Korean variant. https://forum.xda-developers.com/galaxy-note-8/help/n950n-note-8-256gb-att-t3675577
You're thinking of the Chinese variant N9500, which is Snapdragon.
http://www.teamandroid.com/2017/08/29/samsung-galaxy-note-8-model-numbers-variants/
wilcouk said:
No such thing as a 256GB Exynos version, it'll be a Snapdragon.
Click to expand...
Click to collapse
Quite a few of us have the 256gb N950N from Korea which is Exynos.
Ah my bad, i was thinking a dual sim 256gb Exynos for some reason...

Accidentally bought SM-G9730 variant

Hi all! I bought the S10 from eBay not knowing it was the Chinese variant.
I have at&t, and it supports all but two of ATT's bands, so I'm fine there.
I just have one question: Will I be able to flash a stock ROM of a different variant through Odin? Like the US Snapdragon variant for example.
So.. No one knows? I wanna verify before I try to flash a ROM
No you will not really be able to do as you wish without substantial customization and editing of the files you want to flash.
What you are asking is as unlikely as being able to flash the TMO version with the AT&T software.. BUT.. AS I UNDERSTAND IT, unlike the other dual SIM variants the unit you purchased comes with a unlocked bootloader out of the box -- whereas all the other variations -- the bootloader is locked so you will be able to flash custom roms down the road which should cover you.
Samsung pay in a few other things those won't work as I understand it.
---------- Post added at 08:23 PM ---------- Previous post was at 08:10 PM ----------
oh and I forgot this nugget of very important information
If you flash anything other than dual SIM variant software you will lose the dual-sim functionality.
Further, I'm not sure how that might affect your micro SD card slot since the hardware is a little different on that device.
Summary: i wouldn't recommend using anything other than dual SIM variant software.
I was wrong however, from like hardware to like hardware there is a way -- see this post. an example of single Sim to single-sim how to do it.
https://forum.xda-developers.com/galaxy-s10/help/flash-t-mobile-firmware-unlocked-s10-t3917709/
SuperBrolySSJ said:
So.. No one knows? I wanna verify before I try to flash a ROM
Click to expand...
Click to collapse
O my good god what are you asking:x You are asking how to flash wortheless murican firmware on unlocked bootloader phone. It will not work though. With this phone you can later have root when it will be available.
SuperBrolySSJ said:
So.. No one knows? I wanna verify before I try to flash a ROM
Click to expand...
Click to collapse
As others have said, do not do this or you may brick your phone. The model number and bootloader are different between US and non-US Snapdragon versions. I had tried it on my S8 and it won't boot.
SuperBrolySSJ said:
Hi all! I bought the S10 from eBay not knowing it was the Chinese variant.
I have at&t, and it supports all but two of ATT's bands, so I'm fine there.
I just have one question: Will I be able to flash a stock ROM of a different variant through Odin? Like the US Snapdragon variant for example.
Click to expand...
Click to collapse
It is only possible to flash other other SM-G9730 models, not 973U like the US models. As there is only one other firmware you can flash, I think you can flash the Hong Kong version as it is closer to the US version than the chinese version is (Chinese and Hong-Kong have the same version)

[Question] My chilean Note9 in New Zealand

Fellas
I will move soon to New Zealand but I want to use my note 9 bought in Chile. The question is this:
If I flash the NZ firmware on my note could I be able to use a NZ sim and use it?
Thanks in advance! And a happy new year :laugh:
Conito11 said:
Fellas
I will move soon to New Zealand but I want to use my note 9 bought in Chile. The question is this:
If I flash the NZ firmware on my note could I be able to use a NZ sim and use it?
Thanks in advance! And a happy new year :laugh:
Click to expand...
Click to collapse
they are already unlocked, you just need to check if they use the same bands in NZ.
I used my N9 in England without a problem with the stock firmware.
Regards . Saludos.
Danikin said:
they are already unlocked, you just need to check if they use the same bands in NZ.
I used my N9 in England without a problem with the stock firmware.
Regards . Saludos.
Click to expand...
Click to collapse
Thanks bro, going to check :highfive:
What model is your device sm-n960F or SM-N9600 i am in NZ and have SM-N9600 which is the Asia and south american variant
there is no NZ Firmware for it and you wont be able to receive VOLTE (Some helpful error about not being supported on this software version) but you can get Wifi Calling from 2degrees
ms_office_95 said:
What model is your device sm-n960F or SM-N9600 i am in NZ and have SM-N9600 which is the Asia and south american variant
there is no NZ Firmware for it and you wont be able to receive VOLTE (Some helpful error about not being supported on this software version) but you can get Wifi Calling from 2degrees
Click to expand...
Click to collapse
Mine is n9600 too, so could I use my phone over there? That could be excellent if it's true! :highfive:
Thanks you so much! :laugh:
It works on the relevant bands including rural 700mhz 4g so long its not carrier locked it works 98% (no VOLTE)

Question Help to clarify doubts about CSC changing with Samkey

Greetings folks, i have been reading a bit about changing the csc of the phone, I own a s21 Ultra G998B version and its branded with a owo rom, i live in Chile, and the Claro company of course is not up to date with the otas, and also i want to flash a clean rom with no bloatware. I read that with samkey i can change the CSC to an OXO (mine is owo) rom so i can then flash the muti csc rom. I also read that in order for samkey to work i have to roll back to may update? i'm currently on august update. am I correct in the process? can anyone recommend to which csc i can change so i won't turn my phone into a mess
thanks to all who can provide some light jeje
Isn't CHO the Multi-CSC Firmware for Chile?
varcor said:
Isn't CHO the Multi-CSC Firmware for Chile?
Click to expand...
Click to collapse
hi, yes it is, but i looked in samfirmware and the cho version is until august, so i think it would be the same? mine is chl which is for CLARO company and is also in august update, i would like september updates so i can try the andy 12 beta
When I bought it, it had May firmware. I changed CSC before any other update .
So , may update is working for SamKey.
Otherwise, you need to flash with latest Odin the may firmware of your CSC you want (downgraded)
Hello, could someone please tell me, is it possible to flash g998u1 with Thailand firmware, Chinese, etc?
Lexabogdanov said:
Hello, could someone please tell me, is it possible to flash g998u1 with Thailand firmware, Chinese, etc?
Click to expand...
Click to collapse
No to both. Thailand FW is configured for the Exynos SoC. The China FW, even though it's configured for the Snapdragon SoC it's not compatible with the US Unlocked variant. Do you live in Thailand? If so I'm curious why you aquired a US device. We often see users buying non native devices, maybe they got a good price, maybe they moved out of their region, maybe it's a company issued phone but it's a pain when call features or 5G don't align with your service provider. Flashing non stock firmware often causes more problems than it solves. Samsung is moving closer and closer to proprietary software for individual models, mix and match is becoming a thing of the past.
varcor said:
No to both. Thailand FW is configured for the Exynos SoC. The China FW, even though it's configured for the Snapdragon SoC it's not compatible with the US Unlocked variant. Do you live in Thailand? If so I'm curious why you aquired a US device. We often see users buying non native devices, maybe they got a good price, maybe they moved out of their region, maybe it's a company issued phone but it's a pain when call features or 5G don't align with your service provider.
Click to expand...
Click to collapse
I live in Kaliningrad, Russia. This device I've bought for 30usd, new, boxed,, here, in Russia, so I was looking for ways to make it work as a Russian device(full menu translation, bands, etc.). Actually no matter, which language is used, at first I had troubles using android 11-there was no esim. Than using abd I flashed it to oneui 4.0, esim works, all lte bands are supported.
Lexabogdanov said:
I live in Kaliningrad, Russia. This device I've bought for 30usd, new, boxed,, here, in Russia, so I was looking for ways to make it work as a Russian device(full menu translation, bands, etc.). Actually no matter, which language is used, at first I had troubles using android 11-there was no esim. Than using abd I flashed it to oneui 4.0, esim works, all lte bands are supported.
Click to expand...
Click to collapse
And 5G is not supposed for some years )))
Lexabogdanov said:
I live in Kaliningrad, Russia. This device I've bought for 30usd, new, boxed,, here, in Russia, so I was looking for ways to make it work as a Russian device(full menu translation, bands, etc.). Actually no matter, which language is used, at first I had troubles using android 11-there was no esim. Than using abd I flashed it to oneui 4.0, esim works, all lte bands are supported.
Click to expand...
Click to collapse
$30 USD is an awesome deal! If all bands and esim are functional that's probably as good as it gets. Unfortunately Exynos compatible FW which is dominant in Russia can't be installed on your device. Gboard may be your best option for Russian Language.

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