Database Develop

Do NOT buy in the US - does NOT work with modern T-Mobile or AT&T networks

Do NOT buy this phone in the US unless Sony gets its phones approved to work with T-Mobile & AT&T
Sadly Sony is the only phone maker that offers a NORMAL sized phone with the Compact series.
Please show me ANY other options for an Android phone with a 4.6"-4.8" screen with a good camera. THERE ARE NONE! The battery life is also beyond incredible. I easily get 1+ (up to 2) days battery life with heavy usage. Standby time (screen off) is easily 7 days (no greenify or any of that crap needed).
I have a Sony Xperia X Compact and it is the BEST ANDROID PHONE I have ever had.
Despite that I have to say that NOBODY SHOULD BUY ANY SONY PHONES.
The phone is awesome and supports pretty much any 3G and 4G band out there but Sony refuses to get these phones approved by AT&T and T-Mobile for VoLTE.
That means (for T-Mobile as an example) that the Xperia X Compact technically supports T-Mobile's super-duper Band 12 LTE which has almost better coverage than Verizon, BUT because the phone is not approved for VoLTE, Sony phones will almost immediately get disconnected from that T-Mobile tower. You may be standing next to someone with an approved phone that has 100% coverage, yet the Sony Xperia phones will show NO RECEPTION.
Sony phones should be able to at least connect to Band 12 for data but they don't. It may technically have the ability to connect to Band 12 and even use VoLTE, but the tower refusal to keep the connection. Sony then apparently also screwed up the band prioritization, because Sony phones even have issues connecting to non VoLTE networks (eg Band 4).
As a result, ALL SONY PHONES ARE PRETTY MUCH UNUSABLE on T-Mobile and AT&T AS A PHONE.
Do NOT buy any Sony phones if you want to use them on T-Mobile and AT&T, though I can tell you that they are the BEST phones otherwise - just not as a phone.
This is pathetic and there is no response from Sony.

But the press releases say these 2 phones will work with t-mobile VOLTE and WiFi Calling.

lobo4806 said:
But the press releases say these 2 phones will work with t-mobile VOLTE and WiFi Calling.
Click to expand...
Click to collapse
Yea it will.
https://www.androidheadlines.com/20...z1-compact-support-t-mobile-wifi-calling.html

Lol yes first compact phone they certified I think. If someone figures out how to retain the volte functions and gain fingerprint sensor, I'm in.

I've had several Sony phones (Z1C, Z3, Z5C, all international single-SIM versions) and since at least the Z3, they all supported LTE on AT&T. I'm not sure anything changed since the Z5 era, so I'm hoping the XZ1C works fine on AT&T.

Can someone confirm this phone will work on at&t in the us? God I want it to do bad.

texaslegend said:
Can someone confirm this phone will work on at&t in the us? God I want it to do bad.
Click to expand...
Click to collapse
Unproven rumors that it will be voLTE certified. NO CONFIRMATION FROM SONY OR T-MOBILE.
Even so, you won't be able to use the fingerprint sensor, since the international ROM won't support it.
Do NOT buy!!!!

Cool story but I'll be buying. Can't wait!
Btw, it also not confirmed that it WON'T work. Don't you think it would be a good idea to wait and see.
Sent from my HTC U11 using Tapatalk

It seems you have some sort of personal agenda against Sony and/or this particular phone. An idealistic preference for what network(s) should be supported.
I don't know that I care if VoLTE is possible. I want to know if I can make/receive calls, text, access data for app and internet use.
The fingerprint scanner is irrelevant for me, it's there or not.
So simply said, will this work on US networks although some features may not be compatible.
Sent from my SM-G930V using XDA Free mobile app

Should be fine like every other Sony Compact I've had. Best Buy and Amazon will be selling it here shortly so one would logically assume they would be US carrier compatible in terms of calling/ data. I could give a crap about VoLTE.

From what I understand T-Mobile was sued a few years ago when someone couldn't make a 911 call in an area where there was only Band 12 LTE (since Band 12 goes through walls better than the 1900 MHz 2G and 1700 MHz 3G that T-Mo uses, apparently legally you are better off with no cell service than with only data service), because of that lawsuit T-Mobile asked phone makers to disable Band 12 on US devices that do not have VoLTE. (I can't post a source because I'm a new member but you can google this). It looks like the Band 12 blocking is done at the phone firmware level, not from T-Mobiles end, so there is a decent chance that the European firmware will not have Band 12 disabled. Though it will most likely also not support VoLTE on T-Mobile. You should still get good LTE data, you just might have to drop back to 3G or 2G for calls.
That said, this would need to be tested. It would be a shame if you had to choose between band 12 coverage without the fingerprint sensor, or a fingerprint sensor with band 12 coverage.
Either way I'm pretty psyched for this phone. I wish there was more competition in this space, but since Sony is the only game in town when it comes to non-phablet smartphones we really don't have much of a choice do we?

Phones re in and ... I am sadly correct.
Maybe if people spent more time to complain to T-Mobile, Sony, the FCC, the FTC and their Senator/congressman we would not have this issue.
Cell phone networks were supposed to let unlocked phones on ... VoLTE violates that.

Currently using my phone on tmobile just fine.
Getting LTE for data and no voice disconnects.
Could care less about volte; most people don't use their phones to talk anymore, myself included. Normal voice works fine for my needs. ¯\_(ツ)_/¯

christogold said:
That said, this would need to be tested. It would be a shame if you had to choose between band 12 coverage without the fingerprint sensor, or a fingerprint sensor with band 12 coverage.
Click to expand...
Click to collapse
Sadly, some of us do.
theplasmastorm said:
Currently using my phone on tmobile just fine.
Getting LTE for data and no voice disconnects.
Could care less about volte; most people don't use their phones to talk anymore, myself included. Normal voice works fine for my needs. ¯\_(ツ)_/¯
Click to expand...
Click to collapse
Dont assume too much. Since band 12 is much better than bands 2 and 4 in many ways, t-mobile is often not only adding band 12 but using it to replace bands 2 and 4 (kinda makes sense, why would you upkeep obsolete bands). I have had T-Mobile for about a year with an older unlocked phone and they recently switched to a lot of band 12 all over my area/region and now I have lots of total deadzones (including my house). I need to be able to make/receive phone calls, as I'm sure many do. But, for your point, I do still have data, sometimes, it seems to be much weaker a lot of the time compared to what it used to though, but maybe that's just me. I recall coming across a list of cities/places where t-mobile plans to switch things to band 12 and the timeline.
Edit: I am not sure this was the exact article I originally viewed, but here's a link < http://www.prepaidphonenews.com/2017/07/tmo-lte-spectrum-update.html?m=1 >.

theplasmastorm said:
Currently using my phone on tmobile just fine.
Getting LTE for data and no voice disconnects.
Could care less about volte; most people don't use their phones to talk anymore, myself included. Normal voice works fine for my needs. ¯\_(ツ)_/¯
Click to expand...
Click to collapse
So to clarify, if it doesn’t have VoLTE, it just drops to LTE?
So if I flash UK firmware to get the fingerprint scanner (with AT&T) I just get LTE?
I don’t see why this is such a huge issue then, at least for me where I live I’ve never seen anyone with anything more than LTE anyway, it’ll be just business as usual. I also don’t make many phone calls so this doesn’t seem like anything that will hurt me with this phone one bit.

kobold98 said:
So to clarify, if it doesn’t have VoLTE, it just drops to LTE?
So if I flash UK firmware to get the fingerprint scanner (with AT&T) I just get LTE?
I don’t see why this is such a huge issue then, at least for me where I live I’ve never seen anyone with anything more than LTE anyway, it’ll be just business as usual. I also don’t make many phone calls so this doesn’t seem like anything that will hurt me with this phone one bit.
Click to expand...
Click to collapse
To clarify,
On AT&T, with US firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get no fingerprint reader.
On AT&T, with European firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get a working fingerprint reader.
The VoLTE certification and modem configurations are only for T-Mobile on US firmware and other operators on specific, non-US firmware variants.

pbarrette said:
To clarify,
On AT&T, with US firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get no fingerprint reader.
On AT&T, with European firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get a working fingerprint reader.
The VoLTE certification and modem configurations are only for T-Mobile on US firmware and other operators on specific, non-US firmware variants.
Click to expand...
Click to collapse
Thank you so much, it’s been hard to find a totally clear picture of this. As someone who doesn’t make a lot of phone calls (but does rely on LTE data) and never uses data during phone calls it sounds like I’ll be good to go with European firmware.

Thank you, that is a good summary for a fellow AT&T user. But one thing I am curious about. Does AT&T have VoLTE at all? Or is tmo the only one with that ability? Basically, if I bought a totally different phone specifically for AT&T would I get VoLTE?

Frontier3 said:
Thank you, that is a good summary for a fellow AT&T user. But one thing I am curious about. Does AT&T have VoLTE at all? Or is tmo the only one with that ability? Basically, if I bought a totally different phone specifically for AT&T would I get VoLTE?
Click to expand...
Click to collapse
AT&T only offers VoLTE (they brand it: HD Voice) via their own branded handsets (ones bought through them) or any iPhone 6 or newer (as i recall).

andTab said:
Phones re in and ... I am sadly correct.
Maybe if people spent more time to complain to T-Mobile, Sony, the FCC, the FTC and their Senator/congressman we would not have this issue.
Cell phone networks were supposed to let unlocked phones on ... VoLTE violates that.
Click to expand...
Click to collapse
Have you?

N950N Note 8 256GB working on at&t

SO I picked up a 256GB emperor edition from Korea. It is Confirmed to have every single LTE band that AT&T uses. I put my sim in and only get 3G not 4G. Called at&t and they said they need to re-appropriate the IMEI for the USA as it comes up as a 2g/3g phone because the SKoren SK telecom IMEI assigned to the phone is different in the USA. IS that True? Anyone know how and if I can get the Phone to work on 4G LTE on at&t or do I have to hope they get it right? I paid $1400 for this phone I don't want to use a 64GB version I have been waiting to have 500+ GB on a phone for so long.. Any TIps? Hints? Recommendations?
EDIT: for those reading this thread for the first time. As of 10/9/17 I was able to get good LTE speeds as well as WIFI calling and Video Calling on my N950N note 8 Korean Exynos model. In a nutshell here is what I did to make it work.
Flash nemesis n950F rom to my phone.
Flash AT&T CSC to the phone using the CSC tool and you do have to modify one line (user RED FLAME) has this in the CSC thread.
Call at&t and give them the IMEI of a VOLTE wifi calling/video calling capable cellphone (I used my wifes S8+ - and yes you can DOUBLE USE IMEI on the same account)
I also did one other thing - Check page 14 for that information.
I just wanted to give a synopsis of this thread so new N950N and at&t owners don't feel like they are wasting their time searching XDA and google. I only wish other people did this when their problem is solved so people can easily see they are not in the wrong place and don't have to read tons of pages of stuff.

Comp1demon said:
SO I picked up a 256GB emperor edition from Korea. It is Confirmed to have every single LTE band that AT&T uses. I put my sim in and only get 3G not 4G. Called at&t and they said they need to re-appropriate the IMEI for the USA as it comes up as a 2g/3g phone because the SKoren SK telecom IMEI assigned to the phone is different in the USA. IS that True? Anyone know how and if I can get the Phone to work on 4G LTE on at&t or do I have to hope they get it right? I paid $1400 for this phone I don't want to use a 64GB version I have been waiting to have 500+ GB on a phone for so long.. Any TIps? Hints? Recommendations?
Click to expand...
Click to collapse
Hi.
There is a thread somewhere here they were talking about similar problems.
What you where told is essentially correct. Though they also said that they needed a new sim card, too.
Hope this helps. Still waiting for my Note 8.

Too bad those devices do not have the CDMA bands...

I have the same model and same problem but with softbank, though softbank has been less helpful.. i read someone flashing a different csc (if its the right one) will "unblock" the phone? Would any exymos model csc work?
My roaming menu is also greyed out... not sure if that is related.

I think you just need to give them the IMEI and have them set it up for LTE in their system, since they don't by default allow LTE on bring your own devices.

Did you change the apn? I have the same phone on tmobile and i changed the apn to the tmobile apn and i have no problems with the phone.

Kalm_Traveler said:
I think you just need to give them the IMEI and have them set it up for LTE in their system, since they don't by default allow LTE on bring your own devices.
Click to expand...
Click to collapse
Just a quick comment - I think you mis-spoke. ATT Does allow LTE on Bring your own devices. I have been using G955F variants for the last 4 years and never had to do anything other than put the SIM card in for it to work. HOwever, LTE Enhanced Services are not available on Bring your own Devices. This includes HD Calling, Wifi Calling and Video Calling. BUT, LTE will work.
I don't know anything about the Korean Model so I hope the OP is able to get things straightened out - but other variants have always worked on ATT - including TMOBILE PHONES and international variants as well.

Geekser said:
Just a quick comment - I think you mis-spoke. ATT Does allow LTE on Bring your own devices. I have been using G955F variants for the last 4 years and never had to do anything other than put the SIM card in for it to work. HOwever, LTE Enhanced Services are not available on Bring your own Devices. This includes HD Calling, Wifi Calling and Video Calling. BUT, LTE will work.
I don't know anything about the Korean Model so I hope the OP is able to get things straightened out - but other variants have always worked on ATT - including TMOBILE PHONES and international variants as well.
Click to expand...
Click to collapse
That's probably what I meant. I haven't been an AT&T customer for many years, and have been with T-mobile for all my smart phone career, and they don't require any special setup on their end for VoLTE, Wi-Fi calling, etc as I can confirm with my Korean Note 8. After somewhat jankily switching CSCs with a modified script that was originally made for S8 and 8+ phones I definitely have VoLTE and probably have Wi-Fi calling working without any communication to T-mobile.

Waiting on at&t now.. to see what happens.. SPEC for SPEC this phone is exactly the same as an at&t phone. It has every single band, not missing a single one. If you put the specs side by side there is ZERO difference. I changed the APN - there are 3 at&t choices. One gives me 3G the other 2 do not work. SO waiting on at&t to re-appropriate the IMEI to register as a note 8 on their network. I had not idea it was going to be this much of a pain in the arse. I was told by a few sellers, pop in your sim and your good to go. I did need a new sim since my note 4 sim did not fit in the note 8, so They gave me a new sim. I put the sim (using an adapter) back into my Note 4 until they change over the IMEI and the new sim works just fine on the note 4 - all my video calling, wifi calling and tethering work fine. So hoping I do not need to return this phone and use a 64GB model. I wish samsung would just release the 256 here on at&t like apple is doing with the iphone X. I would pay $1200 for it no problem. (and since the iphone X is $1149 with 256gb - I am sure samsung would do $999 or $1099 to undercut apple. But Samsung is going to epic fail and never give the US customers what they want.

Hi there, I would also like to have the Emperor's edition, and use it in Canada (Bell) and USA (T-Mobile or AT&T). Is N950N the correct model number for this edition? Does it come with dual sim? Thanks! So far I found an Ebay seller from Hong Kong with F950FD which looks to be 256GB Duos - I'm wondering what the difference is with N950N and whether I will have an issue with region lock?
Thanks for any comments...

I have the unlocked version on at&t and this is my son, just in case...

jocarog said:
I have the unlocked version on at&t and this is my son, just in case...
Click to expand...
Click to collapse
Did you need a new sim card?

borijess said:
Did you need a new sim card?
Click to expand...
Click to collapse
No, I was using it on a HTC10 and previously on a Note 4...

Totally DIsappointed... No way I am keeping this $1300 phone for how crappy it is on At&T.
They Finally Updated the IMEI so that is shows up as a next gen smartphone on at&t network and I get an LTE logo. I set my own ACCESS POINT as well as used all 3 that showed up automatically. ATT Phone, ATT NEXTGENPHONE and ATT UTDATA (Nextgen) + I did what was recommended on att.com for bringing over a phone that might not get the access point which was the same settings as ATT Phone - all of them gave me LTE on my bar and showed AT&T as the network. Every single LTE Band on this phone is the same as the official ATT note 8. Yet on my speed test I couldn't get better than 4MB/s down and 1.56MB/s up, my note 4 (pop the sim card back in there) even with 1 Bar on my phone I get 42MB/s download and like 10MB/s Upload.
IT is too late to call at&t tonight but I am extremely disappointed. I have wanted a phone with 256GB of memory for like 2 years now, and to have MicroSD expansion for just MUSIC (NOTHING ELSE).
If At&t can't get this note 8 to perform exactly like a at&t version would, then I either going back to my Note 4 or Perhaps the US Samsung unlocked version (which I already have but is not opened as I hoped to sell it and make a few hundred on it to make up for the $1300 I spent on this Emperor Edition.
Any advice?
Anyone want to buy it.. I paid $1299.99 Shipped from NK. Instead of returning it - if anyone wants to buy it, id do the same thing $1299.99 shipped anywhere in US or Canada. Perhaps it will work better on another network...
jocarog said:
I have the unlocked version on at&t and this is my son, just in case...
Click to expand...
Click to collapse
Does your unlocked version work as it should.. FAST LTE 4G LTE? Does your WIFI and Video Calling work?

Comp1demon said:
Totally DIsappointed... No way I am keeping this $1300 phone for how crappy it is on At&T.
They Finally Updated the IMEI so that is shows up as a next gen smartphone on at&t network and I get an LTE logo. I set my own ACCESS POINT as well as used all 3 that showed up automatically. ATT Phone, ATT NEXTGENPHONE and ATT UTDATA (Nextgen) + I did what was recommended on att.com for bringing over a phone that might not get the access point which was the same settings as ATT Phone - all of them gave me LTE on my bar and showed AT&T as the network. Every single LTE Band on this phone is the same as the official ATT note 8. Yet on my speed test I couldn't get better than 4MB/s down and 1.56MB/s up, my note 4 (pop the sim card back in there) even with 1 Bar on my phone I get 42MB/s download and like 10MB/s Upload.
IT is too late to call at&t tonight but I am extremely disappointed. I have wanted a phone with 256GB of memory for like 2 years now, and to have MicroSD expansion for just MUSIC (NOTHING ELSE).
If At&t can't get this note 8 to perform exactly like a at&t version would, then I either going back to my Note 4 or Perhaps the US Samsung unlocked version (which I already have but is not opened as I hoped to sell it and make a few hundred on it to make up for the $1300 I spent on this Emperor Edition.
Any advice?
Anyone want to buy it.. I paid $1299.99 Shipped from NK. Instead of returning it - if anyone wants to buy it, id do the same thing $1299.99 shipped anywhere in US or Canada. Perhaps it will work better on another network...
Does your unlocked version work as it should.. FAST LTE 4G LTE? Does your WIFI and Video Calling work?
Click to expand...
Click to collapse
Have you Odin the CSC and IMS? From what I have read that needs to be done?
Sent from my SM-N950U1 using XDA-Developers Legacy app

No, I haven't flashed the CSC profile, no wifi calling or VOLTE but internet speed is fast...

Comp1demon said:
Totally DIsappointed... No way I am keeping this $1300 phone for how crappy it is on At&T. .......
Any advice?
.....
Click to expand...
Click to collapse
tl;dr - Under Settings->Connections->More Settings there's an option titled Reset Network Settings and, i had to use that on my Korean, Note Fan Edition to get LTE working.
more detail on how i got VoLTE and HD Voice working.... i grabbed an ATT (Snapdragon) S8+ CSC and manually applied to the FE. To get HDVoice and VoLTE working, i called ATT and told them i was going to use my (no-longer used/retired) ATT Samsung S7Active with my cell number. this step was a must to get VoLTE working. once they associated S7Active IMEI with my cell number, i rebooted the Note FE and VoLTE was active. i occasionally receive calls and the HD Voice icon appears on the dialer screen; i assume the other person is calling me via Wifi when i see the icon. Video calling and Wifi calling haven't worked for me on none of my international devices. once i got my UK note 8, i applied the same CSC content (after rooting my device), i inserted the same ATT sim used in the Note FE, reset network settings and VoLTE and HD Voice (when receiving calls) still works.

I don't know about the Korean model, but here is how you get Volte on ATT on the Note 8 F model. https://forum.xda-developers.com/showpost.php?p=73851525&postcount=308 After you slightly modify the zip and flash this, you must call ATT and give the friendly customer service person the IMEI of a phone purchased from ATT directly that is roughly equivalent and had Volte and wifi calling features. I used an old S7. ATT will NOT accept an IMEI of any phone not sold by ATT. Once they put it into their system, reboot your Note 8 and whala - wifi calling and Volte work perfectly.

Flame Red said:
I don't know about the Korean model, but here is how you get Volte on ATT on the Note 8 F model. https://forum.xda-developers.com/showpost.php?p=73851525&postcount=308 After you slightly modify the zip and flash this, you must call ATT and give the friendly customer service person the IMEI of a phone purchased from ATT directly that is roughly equivalent and had Volte and wifi calling features. I used an old S7. ATT will NOT accept an IMEI of any phone not sold by ATT. Once they put it into their system, reboot your Note 8 and whala - wifi calling and Volte work perfectly.
Click to expand...
Click to collapse
Kind of a NOOB when it comes to all this. I haven't flashed or done any phone hacking in a few years (my s4 was the last phone I really played with).
SO I downloaded the CSC Selection V1.2.1 on Android Filehost
I honestly do not know what to do from here.
Thanks.

Comp1demon said:
Kind of a NOOB when it comes to all this. I haven't flashed or done any phone hacking in a few years (my s4 was the last phone I really played with).
SO I downloaded the CSC Selection V1.2.1 on Android Filehost
I honestly do not know what to do from here.
Thanks.
Click to expand...
Click to collapse
did you try resetting network settings to at least get LTE going? Under Settings->Connections->More Settings there's an option titled Reset Network Settings and, i had to use that on my Korean, Note Fan Edition to get LTE working. Or are you good to go on LTE?

SM-N950F Slow Network Speeds On AT&T

Hey there fellas! I recently purchased an international Galaxy Note 8 to use on AT&T here in the U.S. Everything appears to work fine except the speed of my network. Normally in this area I would be getting LTE speeds around 30-40 up and down. With the Note 8 is displays H+ (which I understand to be LTE, but I may be wrong) and I get around 5-7 down and often less than 1mbps up. Some have suggested setting the preferred network time to LTE/UMTS auto (PRL) which was already selected on my device. Is there anything else I can do to get the proper speeds? Thanks!

SacrificedWalrus said:
Hey there fellas! I recently purchased an international Galaxy Note 8 to use on AT&T Thanks!
Click to expand...
Click to collapse
On all of my international versions H+ was 3G and 4G was LTE. Depending on the area with 4G I would get 20 - 50 megs down on AT&T. On my 950U1 my settings under #*#*4636*#*# I have TD-SCDMA/CDMA/UMTS selected by default and mine shows LTE and depending on the area up to 100 megs down.

H+ is 3G, or 3.5G for some carriers

CodeNameRedNeck said:
On all of my international versions H+ was 3G and 4G was LTE. Depending on the area with 4G I would get 20 - 50 megs down on AT&T. On my 950U1 my settings under #*#*4636*#*# I have TD-SCDMA/CDMA/UMTS selected by default and mine shows LTE and depending on the area up to 100 megs down.
Click to expand...
Click to collapse
Ah, that would explain why my speeds are so slow. Thank you for clearing that up. I attempted to select TD-SCDMA/CDMA/UMTS as my preferred network mode but for whatever reason it will not apply. When I reopen that settings menu it goes back to whatever option was selected prior to that. Do you think it could have something to do with the selected APN? I have ATT Phone as my current APN, but at the store they were trying to use ATT Nextgenphone, which didn't work.

SacrificedWalrus said:
but at the store they were trying to use ATT Nextgenphone, which didn't work.
Click to expand...
Click to collapse
I would do all I could to get the Nextgenphone APN working. It is what I used on all my international phones.

Took the Note 8 into the AT&T store today and swapped out the sim card without any luck. As usual they couldn't provide any help beyond that. I also I can't select TD-SCDMA/CDMA/UMTS as my preferred network type for some reason. I contacted the person I bought the phone from and they claimed they used it on Verizon's LTE network without an issue. Very strange.

CodeNameRedNeck said:
I would do all I could to get the Nextgenphone APN working. It is what I used on all my international phones.
Click to expand...
Click to collapse
Would you mind sharing what your CSC on your Note 8 is? I might end up flashing whatever firmware your phone is using, as mine is currently running a firmware for French phones. Not sure if thats the issue, but its possible.

SacrificedWalrus said:
Would you mind sharing what your CSC on your Note 8 is?
Click to expand...
Click to collapse
When your look for the firmware look for 950U1 for AT&T. I would look around for a thread on flashing other regions first just to be safe.

CodeNameRedNeck said:
When your look for the firmware look for 950U1 for AT&T. I would look around for a thread on flashing other regions first just to be safe.
Click to expand...
Click to collapse
I may be totally off here, but wouldn't that be an issue as the AT&T variant uses a Snapdragon SoC, while my device uses Exynos? Another concern for me would the ability to root as well, which is one of the reasons I decided not to buy an AT&T branded phone. Thanks for your help so far man, I appreciate it!

SacrificedWalrus said:
I may be totally off here, but wouldn't that be an issue as the AT&T variant uses a Snapdragon SoC, while my device uses Exynos? Another concern for me would the ability to root as well, which is one of the reasons I decided not to buy an AT&T branded phone. Thanks for your help so far man, I appreciate it!
Click to expand...
Click to collapse
You are right. There is no AT&T firmware for your phone. Unless they changed something with the Note8 you should still be able to get 4G. I did with my international Note4, Note5, and Xperia Z5 Premium models. My son is using the Note5 with an Exynos processor and gets 4G speeds comparable to LTE speeds in the area.

Had this problem as well way back when I first got my 950F.
There are solutions. But you would need one of 2 things.
1. Get At&t to add your IMEI# TO their database so that they can provision your phone correctly.
2. Get another At&t branded phone's IMEI# that is LTE COMPATIBLE. and call them to provision you phone with that #.
My phone is getting full LTE speeds and VOLTE.
But I had them put in the IMEI# of my older Note 5!( which my wife is currently using)...
Hope this helps.

LouK said:
Had this problem as well way back when I first got my 950F.
There are solutions. But you would need one of 2 things.
1. Get At&t to add your IMEI# TO their database so that they can provision your phone correctly.
2. Get another At&t branded phone's IMEI# that is LTE COMPATIBLE. and call them to provision you phone with that #.
My phone is getting full LTE speeds and VOLTE.
But I had them put in the IMEI# of my older Note 5!( which my wife is currently using)...
Hope this helps.
Click to expand...
Click to collapse
Thanks for the reply. I called ATT and gave them your suggestion and they claimed that it would not work. They said provisioning my new phone with an IMEI of a different phone would be temporary up to 2-3 weeks. Have you encountered this issue? I'm assuming not, so I'm curious as to how long you've had this fixed. Thanks again man

LouK said:
Had this problem as well way back when I first got my 950F.
There are solutions. But you would need one of 2 things.
1. Get At&t to add your IMEI# TO their database so that they can provision your phone correctly.
2. Get another At&t branded phone's IMEI# that is LTE COMPATIBLE. and call them to provision you phone with that #.
My phone is getting full LTE speeds and VOLTE.
But I had them put in the IMEI# of my older Note 5!( which my wife is currently using)...
Hope this helps.
Click to expand...
Click to collapse
^^ this. ATT LTE won't work unless the IMEI is provisioned .
Sent from my SM-N950U using Tapatalk

SacrificedWalrus said:
Thanks for the reply. I called ATT and gave them your suggestion and they claimed that it would not work. They said provisioning my new phone with an IMEI of a different phone would be temporary up to 2-3 weeks. Have you encountered this issue? I'm assuming not, so I'm curious as to how long you've had this fixed. Thanks again man
Click to expand...
Click to collapse
I'v been using my N8 since it came out with my old N5 imei#
As I said be4 basically 4g LTE. &VoLTE Works.
Wifi calling etc.. no.
AND my wife is using the N5 so basically we have two phones on same account with same imei#!

[Q] Is this normal ? 4G to 3G to H+ when calling?

I have a unlocked s10+ with a ATT sim card, when I try to make a call, the HTE network symbol changes to a lower speed and eventually H (edge), however the call does go through?
Just curious if anyone else was seeing this ?
Thanks in advance!

Its normal if you have VoLTE disabled or if it isn't available. You can check in settings > connections > mobile networks and check if you have VoLTE enabled.

Don't see it under those options, thanks for the reply !

zerokewl22 said:
Don't see it under those options, thanks for the reply !
Click to expand...
Click to collapse
Maybe your carrier doesn't support VoLTE yet, are u from the US?
This is how it looks on my phone.

hektsepulveda said:
Maybe your carrier doesn't support VoLTE yet, are u from the US?
This is how it looks on my phone.
Click to expand...
Click to collapse
Yes I am in the US, carrier does support VoLTE, however I have an unlocked device ? maybe that might be why I cant see it ?

zerokewl22 said:
Yes I am in the US, carrier does support VoLTE, however I have an unlocked device ? maybe that might be why I cant see it ?
Click to expand...
Click to collapse
Ask your provider to re-provision VoLTE setting to your SIM. Also sometimes you may have to wait for an update for he settings to get applied. Happened to me on my S7. Carrier had activated VoLTE but phone s/w didn't support it. After an update, everything worked.

data is limited to H or 3G (if you are lucky) during calls
thats normal as the phone is using bandwidth for voice calls and cannot offer same data speeds
4G is all about data transfers so you would never really make a call over 4G it will always be over H

ATT doesn't allow VoLTE on the unlocked version. You will need to flash the carrier rom to enable it.

Appreciate everyone's feedback, I spoke to my carrier, and they (Level 2 Tech.) claimed that they (ATT) and Samsung were working on a device performance update, but were not sure of the release time, I will see if they can address this issue, else will need to reflash with carrier rom

tim2london said:
data is limited to H or 3G (if you are lucky) during calls
thats normal as the phone is using bandwidth for voice calls and cannot offer same data speeds
4G is all about data transfers so you would never really make a call over 4G it will always be over H
Click to expand...
Click to collapse
Wrong
lazard said:
ATT doesn't allow VoLTE on the unlocked version. You will need to flash the carrier rom to enable it.
Click to expand...
Click to collapse
Wrong
I recently switched to ATT and I have VoLTE on my S10e unlocked exynos. Had it on T-mobile too. I have a VoLTE switch under Connections>Mobile Networks. Snapdragon maybe different, but it definitely works on a stock unlocked device.

Chronzy said:
Wrong
Wrong
I recently switched to ATT and I have VoLTE on my S10e unlocked exynos. Had it on T-mobile too. I have a VoLTE switch under Connections>Mobile Networks. Snapdragon maybe different, but it definitely works on a stock unlocked device.
Click to expand...
Click to collapse
Maybe read and try to understand before jumping
YOU CANNOT HAVE 4G connectiond during voice calls

tim2london said:
Maybe read and try to understand before jumping
YOU CANNOT HAVE 4G connectiond during voice calls
Click to expand...
Click to collapse
I have LTE during voice calls. Your phone/carrier may not give you this option, but others have it.

At&T doesn't fully support unlocked phone learned that the hard way when i bought my 1st unlock note 8. Internet was slow same signal your getting H+ no wifi calling it was a mess returned it and bought an At&t note.

Chronzy said:
Wrong
Wrong
I recently switched to ATT and I have VoLTE on my S10e unlocked exynos. Had it on T-mobile too. I have a VoLTE switch under Connections>Mobile Networks. Snapdragon maybe different, but it definitely works on a stock unlocked device.
Click to expand...
Click to collapse
Did you get your s10e exynos from that ebay deal?

Chronzy said:
Wrong
Wrong
I recently switched to ATT and I have VoLTE on my S10e unlocked exynos. Had it on T-mobile too. I have a VoLTE switch under Connections>Mobile Networks. Snapdragon maybe different, but it definitely works on a stock unlocked device.
Click to expand...
Click to collapse
Curious, what made you go for a Exynos phone? I thought they were inferior to the SD versions and LTE bands missing for the USA

skyrocketeer said:
Did you get your s10e exynos from that ebay deal?
Click to expand...
Click to collapse
I got it from eBay yes. Not sure exactly which deal you're talking about.
Micky 22 said:
Curious, what made you go for a Exynos phone? I thought they were inferior to the SD versions and LTE bands missing for the USA
Click to expand...
Click to collapse
Future custom roms, root. The exynos version isn't missing any LTE bands that I know of. I get great coverage and speed. I don't know how they are inferior to SD. Performance and battery life are good.

Unlocked U1 devices will not get VoLTE or VoWifi with AT&T. Some have had luck flashing the AT&T firmware and CSC on prior generations, but there wasn't a guaranteed way to make this work.
If you need these features, youre best off buying the AT&T branded version, or buying an international phone that enables VoLTE without requiring carrier validation. (Which will likely work)

tim2london said:
Maybe read and try to understand before jumping
YOU CANNOT HAVE 4G connectiond during voice calls
Click to expand...
Click to collapse
If your provider supports VoLTE, then you can as voice is transmitted as VOIP call via LTE network. You should see VoLTE icon next to 4G icon if your provider supports it and is provisioned to your SIM card.

Wifi calling and voLTE on Att only

Wanted to ask if anyone with a USA model rog 2 tried att Sim card and did it work with att? We already know t-mobile doesn't list those options. This way we can all go search for phones that will suit our needs.

My US model will be delivered either Saturday or Monday and I use AT&T. Will post my results then.

I just talked to support again, and they said no VoLTE or VoWifi on Tmobile, Verizon, or AT&T, or any American carrier. They have no plans to enable it. The suggestion was that I leave them a complaint, so I did so via their form on Asus.com as well as Facebook.

The problem is AT&T is shutting down their 3G service this year so if VoLTE isn't enabled we can't make voice calls.

TawkinTrash said:
The problem is AT&T is shutting down their 3G service this year so if VoLTE isn't enabled we can't make voice calls.
Click to expand...
Click to collapse
As is TMobile, from what I understand. You should be able to make calls, but it will default to EDGE, IIRC.

Cellendril said:
As is TMobile, from what I understand. You should be able to make calls, but it will default to EDGE, IIRC.
Click to expand...
Click to collapse
Ok I just tried to confirm and got info they're not shutting down 3G just yet. We still have a few more years.
I guess that's good we'll still have calls but isn't good because there's no reason for VoLTE.

Thanks to ryououki for the offer, we will await your testing and we will be here if u need any help

I seriously don't understand a U.S model, yet no volte? That's just dumb. Wtf?

I can tell you right now it wont work, Its a sick phone but I'm sending it back because of this. Asus screwed up with no VoLTE, no VoWiFi, and only a 1080p screen IMO. Maybe next time they will get it right. I hope the OnePlus 7T and the 7T Pro has it... Crazy!

Just read this for T-Mobile:
Due to lack of VoLTE support you won't be able to place and receive calls including 911 calls in some buildings and some outdoor areas where 2G GSM and 3G HSPA+ signal (marketed by T-Mobile as "4G") is too weak or non-existent while LTE band 12 is available

Great info so far , just need someone to try it with att sim for confirmation.
So far we know,
Tmobile no go on volte or wifi call
Verizon works on data only no calls or txt just like rog one. Cdmaless option unclear at this moment .
Att no test yet

I have a US model on AT&T and can't get VoLTE yet.
I talked to AT&T support and they said there's no compatibility yet.
The IMEI doesn't come up in their system as a known device.

I have at&t and a USA version of the phone, I can confirm as well that the phone drops to 3g when making voice calls.
This is really really bad because at&t plans to shut down their 3g in 2021, that means no voice calls after that. Asus USA knowingly selling a $900 phone that cant make a call in 2 years is borderline fraudulent.

yok3 said:
I have at&t and a USA version of the phone, I can confirm as well that the phone drops to 3g when making voice calls.
This is really really bad because at&t plans to shut down their 3g in 2021, that means no voice calls after that. Asus USA knowingly selling a $900 phone that cant make a call in 2 years is borderline fraudulent.
Click to expand...
Click to collapse
I have to agree. Its just dumb.
Someone needs to see if something like this can work.....
https://forum.xda-developers.com/Mi-9/how-to/wifi-calling-volte-mi-9-t3917887
There has to be options somewhere we can atleast get VOLTE working. Yes root will be mandatory, but i am ok with that. I might order one from amazon. Whats the return policy for phones on amazon? Anyone know?

I believe there were reports that VoLTE was working on Tencent models?
We really need to look into making a custom rom for our phones for the US carriers.

Did you try dialer codes *#*#VOWIFI#*#* and *#*#VOLTE#*#*

How ridiculous. This is how you ruin a near perfect phone.

stealthj said:
I believe there were reports that VoLTE was working on Tencent models?
We really need to look into making a custom rom for our phones for the US carriers.
Click to expand...
Click to collapse
I did more research, it seems to be more on the AT&T side than on the Asus side of things. Barring a few well-know phones like the Pixel 3, most BYOD Android devices on AT&T in general don't get VoLTE, including unlocked versions of Samsung Galaxy devices that are not purchased through AT&T. It looks like AT&T does not enable VoLTE for device models with IMEIs that it does not recognize (i.e. doesn't have AT&T certified ROMs), because they are afraid of getting fined by FCC for non-E911 compliance which requires the carrier to certify E911 support on all handset/firmware when on VoLTE. My guess the Tencent models with VoLTE working are somehow whitelisted by AT&T ad-hoc or they are working on Non-U.S. carriers. So it is more of an AT&T problem than an Asus/ROM issue. (though there may be ROM hacks to ask the handset to force VoLTE even if AT&T doesn't advertise the capability during protocol handshake).
Since this is a much bigger issue than just the ROG II phone, hopefully they have a plan to white list all BYOD Android devices for VoLTE when they sunset 3G. Otherwise AT&T would stand to lose a good chunk of revenue from those who migrate over from other carriers with BYOD phones, say a Galaxy phone with a T-Mobile ROM. You simply can't even offer a BYOD plan if you don't have voice call working for most of the BYOD Android devices.

suzook said:
I have to agree. Its just dumb.
Someone needs to see if something like this can work.....
https://forum.xda-developers.com/Mi-9/how-to/wifi-calling-volte-mi-9-t3917887
There has to be options somewhere we can atleast get VOLTE working. Yes root will be mandatory, but i am ok with that. I might order one from amazon. Whats the return policy for phones on amazon? Anyone know?
Click to expand...
Click to collapse
I'm pretty sure their return policy for phones is the same as all other goods. I bought and returned the original ROG phone last year through Amazon, considering doing the same with ROG II unless there's a breakthrough on providers and features with custom ROMS/etc.

Yea that's pretty dirty to whitelist the Tencent version but not the US model.