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I've really enjoyed my S7 and want to upgrade to the S9. Later in the year I'll be overseas for almost a year, so I want something that will work with all Verizon bands of LTE, but also not have a firmware lock that would cause it to not work on other bands of LTE overseas. (planning to just use prepaid dataplan sim cards overseas)
I think my two options are to either get a US 'unlocked' version or wait for the 'international' version. My understanding is the primary differences between the unlocked and international version is the 2G/3G coverage for CDMA and possibly slightly different hardware. I'd rather have a phone with CDMA backwards capability, but my prime concern lacking full access to all LTE bands available wherever I am.
I'm not really interested in going any route that would require me to root the phone if there is a way to do it without.
Well the only way to get VZW compatibility is the VZW phone or a US unlocked model. So you're looking at the US Unlocked model at this point.
A listing of all the different model numbers available (per country and carrier) is available here: https://www.techwalls.com/samsung-galaxy-s9-sm-g960-g965-model-number-differences/
You will probably want to get the phone that works with your primary location the most. I am not sure which countries use which frequencies for LTE in Europe; you will need to research that to see what you may be missing out on.
With my T-Mobile S7, I haven't had any issues when traveling in Europe or Asia. It connects to LTE usually.
So I just did a deep dive of that list:
It looks like the Verizon and Unlocked versions are almost identical (the unlocked US version has B46(5200) 4G TDD LTE, but I'm not sure anyone who uses it)
Looking at 4G FDD LTE it looks like a Verizon or US unlocked phone will have almost complete coverage around the world, notable gaps are B30(2300) in China/Canada/US AT&T, B32(1500) in UK and B71(600) (US Tmobile). I thought that was a bit confusing as you'd expect a US Unlocked phone to service all LTE bands available in the US yet it lacks AT&T and Tmobile bands.
So based on all that information looks like I should just get an unlocked US phone to be totally safe, and I'd likely also be fine getting a Verizon version also.
StykerB said:
Well the only way to get VZW compatibility is the VZW phone or a US unlocked model. So you're looking at the US Unlocked model at this point.
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Relcan said:
So I just did a deep dive of that list:
It looks like the Verizon and Unlocked versions are almost identical (the unlocked US version has B46(5200) 4G TDD LTE, but I'm not sure anyone who uses it)
Looking at 4G FDD LTE it looks like a Verizon or US unlocked phone will have almost complete coverage around the world, notable gaps are B30(2300) in China/Canada/US AT&T, B32(1500) in UK and B71(600) (US Tmobile). I thought that was a bit confusing as you'd expect a US Unlocked phone to service all LTE bands available in the US yet it lacks AT&T and Tmobile bands.
So based on all that information looks like I should just get an unlocked US phone to be totally safe, and I'd likely also be fine getting a Verizon version also.
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So I'm new to Android but i use Verizon prepaid. Will I lose anything by going with the unlocked version or should i stick with a Verizon S9?
I don't use video calling. All i do is text and talk but I've heard that people on Verizon prepaid have issues with unlocked Android phones.
Thanks
Would Wifi Calling work with the US unlocked on verizon? I thought that required a Verizon FW to be flashed. I imagine all the other features such as voLTE / HD calling, etc to work on the US unlocked.
testinguser said:
Would Wifi Calling work with the US unlocked on verizon? I thought that required a Verizon FW to be flashed. I imagine all the other features such as voLTE / HD calling, etc to work on the US unlocked.
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Curious about that also
testinguser said:
Would Wifi Calling work with the US unlocked on verizon? I thought that required a Verizon FW to be flashed. I imagine all the other features such as voLTE / HD calling, etc to work on the US unlocked.
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Throwinrocks said:
Curious about that also
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I did a cursory review of the wifi-calling FAQ on their website. They don't mention anything about compatibility with Unlocked versions of phones (that I saw). I'd call tech support to ask, but I'd expect there to be a 50% chance of getting the wrong answer from the tech based on my interactions with their support.
There might be some good experience based anecdotes in the Galaxy S8 forum, if it works on an unlocked S8 its a safe bet it will work on an unlocked S9
I think I'll ask in the Verizon subreddit, it seems like they normally have really good information as well.
I'm mostly curious about the LTE TDD Band 46 (5200) - its the only band an unlocked US phone has that a Verizon phone doesn't. 5200 is in the U-NII frequency range, no cellphone service providers use it, but I wonder if it may be used for local LTE networks in the near future. The other advantage is avoiding all the verizon bloat wear, but that may be what allows the Wifi Calling to work!
All this has me thinking I might have to add the extra $80 and just buy the Verizon version. I don't get phones on contract and I've always just paid full price. (Page 2 404 error?)
Apparently the Nov/Dec Samsung s8 firmware update added an option for BYOD carrier provisioning for unlocked s8. Given the similarity, I'd imagine the same to be true for s9. Can someone who has an unlocked s8 confirm?
Well after a little more research I see that if you use Verizon prepaid you lose visual voicemail and WiFi calling even if you use a Verizon phone so there's no need in me paying extra for a Verizon S9. Unlocked it is.
Throwinrocks said:
Well after a little more research I see that if you use Verizon prepaid you lose visual voicemail and WiFi calling even if you use a Verizon phone so there's no need in me paying extra for a Verizon S9. Unlocked it is.
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You might wanna check this as Verizon is starting to implement network locks on some devices as to deter thefts more
Dont know when or what devices but it was a statement Verizon made
So, you're saying the prepaid SIM might not work in an unlocked S9?
I don't think Verizon is keeping Verizon prepaid SIMS from working in unlocked phones they are just locking their phones like Sprint and AT&T still do.
I had no problems with my unlocked Pixel 2 XL that I purchased from Google and my Verizon prepaid, just no visual voicemail.
Hi,
If I take a AT&T S9, Unlock the bootloader (if possible), root it, and flash a custom rom on it will I then be able to use it on Verizon?
Thank you in Advance.
Kc0r8y said:
Hi,
If I take a AT&T S9, Unlock the bootloader (if possible), root it, and flash a custom rom on it will I then be able to use it on Verizon?
Thank you in Advance.
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ATz&T is GSM Verizon is CDMA incompatible
Perhaps @sw1173 is a dinosaur or a forum troll?
Verizon 4G LTE is not CDMA. It's 4G LTE and fully compatible with 4G LTE used by other carriers around the globe. Verizon 2g and 3g is CDMA, and only still exists to support older cellular data and IoT devices and some dinosaurs using ancients relics for devices. Verizon announced they were planning on completely shutting down their CDMA network the end of 2019, but just recently decided to postpone the shutdown for up to another year. Verizon has been permitting activation of an ever expanding list of unlocked phones for some time now, including devices like the OnePlus 6T that has no CDMA support, just 4G LTE. If you already have a 4G LTE device activated, you can swap the SIM into another 4G LTE device and as long as it has radio band support for Verizon's spectrum (use frequencycheck.com) as well as software support for Verizon's VoLTE settings, you're good to go. They don't seem to have a VoLTE whitelist like AT&T.
Sadly, the bootloader on the US Snapdragon S9 can not be unlocked at this point (no hacks) like the foreign SM-G960F(D)/965F(D) (Exynos with unlocked bootloader) or the SM-G9600/9650 (Snapdragon with unlocked bootloader) in order to install custom ROMs. I suggest everyone avoid US Samsung phones, period, because of this, and be sure to share your discontent with Samsung. Personally, if I were you, I would get the SM-G9600 or SM-G9650 (China / Latin America Version), root it (easy), and flash the files here to get Verizon support:
https://forum.xda-developers.com/galaxy-s9/how-to/guide-sm-g9600-sm-g9650-verizon-t3890695
If you buy or have a carrier unlocked US S9, including from AT&T, you can use it with any US carrier, including Verizon. You'll probably want to flash the Verizon firmware on it to get Verizon features including WiFi calling though:
https://www.reddit.com/r/GalaxyS9/comments/85ci7c/convert_atttmosprint_to_unlocked_s9_guide/
Presently you can't unlock the boot loader on the n960u therefore you can't flash Verizon's firmware. Call Verizon and you will be told they are CDMA and are not changing but are adding capability for 5G after 1/1/2020, which will allow the use of various GSM devices to use their CDMA network.. I just spoke with Verizon sales and their technical support.
sw1173 said:
ATz&T is GSM Verizon is CDMA incompatible
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incorrect, this has been incorrect since the S8 when Sammy decided to not make different models for the US market. All S9's built for the US market are physically identical
mobileanimal said:
Perhaps @sw1173 is a dinosaur or a forum troll?
Verizon 4G LTE is not CDMA. It's 4G LTE and fully compatible with 4G LTE used by other carriers around the globe. Verizon 2g and 3g is CDMA, and only still exists to support older cellular data and IoT devices and some dinosaurs using ancients relics for devices. Verizon announced they were planning on completely shutting down their CDMA network the end of 2019, but just recently decided to postpone the shutdown for up to another year. Verizon has been permitting activation of an ever expanding list of unlocked phones for some time now, including devices like the OnePlus 6T that has no CDMA support, just 4G LTE. If you already have a 4G LTE device activated, you can swap the SIM into another 4G LTE device and as long as it has radio band support for Verizon's spectrum (use frequencycheck.com) as well as software support for Verizon's VoLTE settings, you're good to go. They don't seem to have a VoLTE whitelist like AT&T.
Sadly, the bootloader on the US Snapdragon S9 can not be unlocked at this point (no hacks) like the foreign SM-G960F(D)/965F(D) (Exynos with unlocked bootloader) or the SM-G9600/9650 (Snapdragon with unlocked bootloader) in order to install custom ROMs. I suggest everyone avoid US Samsung phones, period, because of this, and be sure to share your discontent with Samsung. Personally, if I were you, I would get the SM-G9600 or SM-G9650 (China / Latin America Version), root it (easy), and flash the files here to get Verizon support:
https://forum.xda-developers.com/galaxy-s9/how-to/guide-sm-g9600-sm-g9650-verizon-t3890695
If you buy or have a carrier unlocked US S9, including from AT&T, you can use it with any US carrier, including Verizon. You'll probably want to flash the Verizon firmware on it to get Verizon features including WiFi calling though:
https://www.reddit.com/r/GalaxyS9/comments/85ci7c/convert_atttmosprint_to_unlocked_s9_guide/
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in addition to this correct information, id like to add that phones can be debranded by flashing the U1 firmware, but will require a modded Odin in order to get around the write protections put in place meant to stop us from doing that
sw1173 said:
Presently you can't unlock the boot loader on the n960u therefore you can't flash Verizon's firmware. Call Verizon and you will be told they are CDMA and are not changing but are adding capability for 5G after 1/1/2020, which will allow the use of various GSM devices to use their CDMA network.. I just spoke with Verizon sales and their technical support.
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incorrect. Well, youre right in saying that it cant currently be unlocked or rooted, but you CAN flash verizons firmware. Verizon hasnt been a cdma carrier strictly speaking for a decade. LTE has always been GSM, and ever since vzw jumped on board, theyve been a hybrid at best. On top of that, with VoLTE becoming more and more popular, their cdma transceivers have been getting less and less usage every day. 5G isnt going to be the splash a lot of folks think it will either. New handsets to support a new communication method that just isnt needed in most places. And finally, most handsets produced in the last few years are hybrids, especially those sold in several countries. The biggest exception to that rule is the chinese phones that dont even have cdma radios in them.
Just got the G960U here in USA and its great.
But that fact that its my first bootloader locked Samsung is bugging me and im pretty sure i'll return it.
I use UltraMobile mvno -T-mobile sim with Wifi calling enabled.
Both the bootloaders on these models are unlocked correct? They are both Exynos? If there another model that has unlocked bootloader?
Is one more desirable than the other?
Any major drawbacks/differences with these models if i were to use in USA?
for example, do devs create more custom roms for one or the other?
Or would one model be more likely to be able to get wifi calling better like if i flashed the right CSC?
Thanks
Hey I'm thinking about buying a G960FD as well for use in the US. I have G930FD's and G950FD's currently. The F models don't have LTE bands 30 (AT&T) or 71 (T-Mobile) - frequencycheck.com is a great site to look up phone/carrier compatibility. The lack of these frequencies in the radio is not a deal breaker because these are just for extra capacity at this point, though band 71 with T-Mobile offers additional outdoor range being low frequency. You will need to root to in order to get VoLTE in the US, and this will be necessary for T-Mobile since T-Mobile only has 4G coverage and some crappy 2G coverage outside of large cities. So without 3G coverage calls WILL fail outside of large cities if you don't root to enable VoLTE since the phone will not be able to place a call on 4G LTE bands without VoLTE. AT&T doesn't typically allow non AT&T unlocked phone IMEI's to use VoLTE, and AT&T will be shutting down 3g in a few years. At that point, their IMEI whitelisting may go away and they'll start allowing an phone to use VoLTE, otherwise they'll start losing customers. If they don't change their attitude though, your phone will also not work on AT&T in a couple years (they don't have 2G enabled anywhere anymore). Verizon is also shutting down their 3G network in a couple of years.
I actually came searching XDA to see if anyone had a SM-G960F or SM-G965F working with VoLTE (and specifically dual VoLTE on the FD since it's supported) on any US carriers. I haven't come across anyone yet. On the Exynos S7 and S8, if you don't need WiFI calling, it's actually pretty easy to get VoLTE working without having to install an bunch of crap. There's just 4 files you need to edit or overwrite in /system/csc and one additional VoLTE settings file you have to place there as well. I'm thinking it would be the same with the Exynos S9. I just need someone with an S9 to confirm. Since you need WiFi calling, it's going to be a bit more work. You can look at the CSC selection tool easily found by searching here on XDA for the Exynos S7/S8 to see what you'll need to get WiFi calling to work (it's not that bad to go through the code and files in the zip installer). You may end up having to extract the US Qualcomm S9 T-Mobile firmware to get the required files out of it, or you might even be able to get away with simply flashing edited portions of the S8 CSC selection tool files to your G960F to get VoLTE and T-Mobile WiFi calling to work. (If you flash the CSC selection tool to directly to the stock ROM, it will break a lot of things due to the permissions XML file). I would plan on spending a few weekends to get VoLTE and WiFi calling working on it though.
If anyone has any additional experience, please chime in here!!
Also, one thing to pay attention to whenever you flash stock firmware using ODIN is Samsung's stupid e-fuses that prevent you from downgrading to a different bootloader level which will lock you out of downgrading stock firmware. It's the first number in the firmware descriptor. For example, if you blindly flash a U3 or S3 firmware, you can NEVER go back to a U2 or S2 firmware outside of a custom ROM. And even with a custom ROM, you may end up with compatibility issues with the new bootloader.
Another thing is when you root Samsung phones, it trips another permanent e-fuse that not only voids your warranty, but prevents apps like Knox and Samsung Pay from working ever again on the device.
To answer your questions:
The FD is just dual SIM - no other advantages. There's actually a hack for the Exynos S7's that will convert them to dual SIM since it's the same hardware. I'm not sure if it's like that with the Exynos S9.
Yes, the Exynos international versions have an unlocked bootloader (just have to go to enable developer options in the OS then go into developer options and enable OEM unlocking)
Yes, having an unlocked bootloader means there will be MUCH more custom ROMS and development out there.
It looks like the SM-G9600 or SM-G9650 (Chinese/Latin American) are the versions to get. They have the Qualcomm Snapdragon 845 processor, is bootloader unlocked, and apparently even working on Verizon and T-Mobile (see the thread below). They don't have bands 30 or 71, but that's not the end of the world since most older phones as of a few years ago don't have those bands. I'm still wondering if dual VoLTE is working on these.
https://forum.xda-developers.com/galaxy-s9/how-to/guide-sm-g9600-sm-g9650-verizon-t3890695
Does anybody know if I can use Odin to put stock Sprint A505U firmware into my Verizon A505U? There's no OEM unlock option on the A505U (US version) phone so the bootloader is locked. I prefer not to root so I can use google-pay without any masking shenanigans.
The sprint firmware has a different set of enabled FDD-LTE bands that makes it more useful. Thanks.
Edit:
I've just learned that some carrier unlocked galaxies s8, s9, s10, etc. running pie will auto rebrand and adjust available bands to adapt to whatever Sim is installed. Does the A505U do this? This would be far easier than flashing if it works for the A505U.
The Samsung BYOD rebranding feature for U models based on sim insertion is always released about 10 months after the phone's initial release.
This has been the case for S8, Note 8, S9, and Note 9. It is not even released yet for S10.
So it will probably be getting close to mid-2020 before it is released for A505U, if even then.
Thanks for the response. I am still trying to wrap my head around how Samsung does their "BYOD Experience" rebranding. It appears that Samsung has gone the route of common hardware for US phones while supporting all the major carrier CSC's (multi-CSC?) within a given branded firmware .
Since only the CDMA carriers Xfinity, Sprint, and Verizon have the A505U, I'll try to find somebody with an ATT or TMO sim to see how my supposedly unlocked Verizon A505U reacts. I haven't seen any reports of what happens posted yet as it relates to the A505U.
I have a Galaxy A505U through Sprint. As you've said it is bootloader locked by the carrier. The 7 day trick does not work to show/enable Oem Unlock. I forget the reason now but I have reflashed stock firmware in Odin before which would modify system partion despite a locked bootloader. So I believe that you could in theory flash the sprint firmware in odion but I don't know how this will affect coverage. I do know sprint has roaming agreement in place with vzw so it should work.... But you're coverage may be degraded as I believe it's not going to support all of vzw lte bands... On a slightly separate note I am curious if there's some way to get around the lock using Odin. I am rusty on my Samsung modding(not eisnce sgs4) and terminology but I'm wondering if we could flash just the bootloader itself from another variant.
cominteldb said:
The Samsung BYOD rebranding feature for U models based on sim insertion is always released about 10 months after the phone's initial release.
This has been the case for S8, Note 8, S9, and Note 9. It is not even released yet for S10.
So it will probably be getting close to mid-2020 before it is released for A505U, if even then.
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this is not accurate.. the devices contain multi csc in the omc partition so once the device is sim unlocked all the firmwares for usa variants have the csc for all the carriers.. you can use an app like phoneinfo and see the available csc's.. it has been this way as you stated since the S8 and up...
now if you are talking about U1 devices then thats a different story.. U1 devices typically have the same csc's but are just unbranded meaning little to no carrier bloat for example.
this is typically why all the firmwares are interchangeable because they are all containing the same csc. The only difference sometimes will be the userdata which might b labeled specific to a carrier but ultimately this doesnt matter either as they typically would contain only a few extra carrier bloat apps that shouldnt impact overall function at all..
heck, if you know what ur doing you can even change the csc code without even flashing any other firmware or putting another sim in.. i typically for example use sprint sales code with vzw network code bcuz i have verizon but sprint has more dialer codes..
as an example my g975u was purchased from verizon but i currently set the csc to GCF for research purposes and all my vzw services work great and to start I used a U firmware that had userdata labeled for SPR lol I also removed the last bit in the carrier code for research purposes.. when i toss a tmo sim in it automatically loads the apns and carrier mode for tmo and it just works without even rebooting
occams-razor said:
Thanks for the response. I am still trying to wrap my head around how Samsung does their "BYOD Experience" rebranding. It appears that Samsung has gone the route of common hardware for US phones while supporting all the major carrier CSC's (multi-CSC?) within a given branded firmware .
Since only the CDMA carriers Xfinity, Sprint, and Verizon have the A505U, I'll try to find somebody with an ATT or TMO sim to see how my supposedly unlocked Verizon A505U reacts. I haven't seen any reports of what happens posted yet as it relates to the A505U.
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you are correct.. the usa variants are multi csc so they should work anywhere.. international devices also contain multi csc for w.e region it is purchased in. once sim unlocked if u say try to take ur phone to china or something ur device wont contain that csc but you should be able to get it to work with apn edits for example and might not have all the bells and whistles since couldnt flash their specific csc if that makes sense..
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
Samsungs "byod" experience just means its carrier unbranded so its sim unlocked out the box and can b used on any usa network without all the carrier bloat.. this is sort of pointless in my opinion since usually these firmwares can also b flashed to carrier branded variants..
on a side note, i have a tmo sim but mainly i use verizon and am getting an A50 from big red tomorrow so I will test this out for u and let u kno how tmo is in a vzw a50.
i have a tmo purchased a10e and my vzw sim works great in it.. in fact, vzw works better in the tmo phone than tmo haha but thats bcuz tmo isnt as good service wise in my area
elliwigy said:
you are correct.. the usa variants are multi csc so they should work anywhere.. international devices also contain multi csc for w.e region it is purchased in. once sim unlocked if u say try to take ur phone to china or something ur device wont contain that csc but you should be able to get it to work with apn edits for example and might not have all the bells and whistles since couldnt flash their specific csc if that makes sense..
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
Samsungs "byod" experience just means its carrier unbranded so its sim unlocked out the box and can b used on any usa network without all the carrier bloat.. this is sort of pointless in my opinion since usually these firmwares can also b flashed to carrier branded variants..
on a side note, i have a tmo sim but mainly i use verizon and am getting an A50 from big red tomorrow so I will test this out for u and let u kno how tmo is in a vzw a50.
i have a tmo purchased a10e and my vzw sim works great in it.. in fact, vzw works better in the tmo phone than tmo haha but thats bcuz tmo isnt as good service wise in my area
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Thanks for the great info! Please let us know how the TMO sim works out. I'm most curious about whether TMO features like their VoLTE and VoWIFI are enabled.
An Interested Observer...
elliwigy said:
the usa variants are multi csc so they should work anywhere...
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
i use verizon and am getting an A50 from big red tomorrow so I will test this out for u and let u kno how tmo is in a vzw a50.
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Hello..
Your comment sparked my interest.. as I'm a new owner of the Xfinity variant of the Galaxy A50.
Although I have no plans to leave Xfinity for the remainder of 2019.. as I'm waiting for my $250.00 Promo Rebate which comes around the 4th Month of service to cover just under 65% of my investment in the A50... leaving me with a $135.00 balance.. But, if what you state is indeed the case.. and these devices have the guts to run on traditional GSM Carrier's.. this add much more intrigue into the equation..:angel:
I'm not one to pry.. but, did you follow through with your purchase? and if so... what were your findings?
elliwigy said:
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
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Click to collapse
That is correct but as someone who works in the industry and works with 3 out of 4 nationwide carriers I can say Att typically has there iphones manufacturered without a cdma attena making it gsm only.
I just checked my sprint A505U and it does have csc codes for many carriers including att, spt, vzw and t-mob among others. So generally another firmware should work fine then?
I had purchased a used SM a505u from dubai market. 1 YEAR IT WORKS FINE and after that I understand phone is not getting updates and there was issue with fingerprint sensor. And I decided to flah march2020 update from samfrew . But after that I am not getting network .it says networ error. Sim card crash.contact carrier etc...
Hello,
I have a note 10+ of US origin with snapdragon 855, I want to use it in Europe (France) in order to have the best possible network.
I installed the firmware N975U1 XAA but I don't have 4G + (I only have the LTE logo, no LTE +), a lot problem of concern for notification with my mailboxes.
So I would have liked to know if there was a more suitable firmware for France in order to have the 4G logo which replaces the LTE logo? and maybe be able to receive 4G +?
I know I cannot install the XEF firmware because the processor is not the same.
Thanks for your help
Hello ,
I'm surprise ! Your provider ? Your mobile network coverage ? If you have another mobile , full XEF , what result on the same place ? switch off !
I use the Orange network. the network is the same with another mobile except that I receive 4g + while there it is simple lte. I know there is normally lte + in us. so know if it is possible to have a firmware allowing to have 4g +. after maybe nothing to do but I receive with great difficulty the notifications gmail and other mailbox. I have however reinstalled everything several times but no change.
does anyone know if this is possible? or a tweak that allows you to do it? thank you
4G, 4G+, lte, lte+, lteA, 5G, etc, are sevice provider dependant, so, you will get what the carrier gives you, no way to obtain services that other carriers provide
I'm using a Canadian Note 10+ (N975W) here in the UK which is working flawlessly, I have full 4G+, VoLTE & WiFi calling, the only thing that doesn't work is Samsung Pay which I knew anyway, and as I use Google Pay, it isn't a issue :highfive:
Firstly search the bands that your phone uses with its model name on GSM arena, then the ones used by the carriers you'll need for both countries.
Then with the RNC mobile app or with Activity Launcher, search "hidden" and launch the one under "paramètre d'appel"
You'll be able to see what bands are actually used by your current carrier.
Since the protocol names and frequency aggregation hints are carrier specific, you may already use 4G+ without knowing.
Hello, I'm going back to the topic because I still don't have a solution at the moment. I had the opportunity to have a French Note 10 alongside with the same operator, I had the "4G +" (LTE+) logo, the speeds were tested at 300 mega / sec. With my 10+ USA rating stuck on the LTE logo I only get 50 mega / sec ...: /
according to my research this is a carrier aggregation problem.
How to unlock it?
I just tried the Canadian rom and the same, no support for LTE + or 4G +, the speeds are as low as with the US version