Database Develop

I'm so sorry this has to be my first post..

Hey XDA - I've been a browser forever, but I just signed up;
because I am in diiiiiiiiire need of some help.
I'm really sorry this has to be my first thread.
I promise I'm not a troll, and I promise I'll contribute as
much as I possibly can!
I have a situation I am in -
I currently have a Nexus One, on T-Mobile U.S.
It's completely stock, no hacks or roots, mods or anything.
To make a long story short - I'll be switching phones and providers soon (Evo), but I would like to give this phone to my girlfriend, who happens to live in the United Kingdom. She's on the O2 network, and has all the data/plan stuff covered already, I just need to get the phone working for her when she pops in her SIM card.
From what I've gathered, it seems like the Nexus One WILL work on O2 with both 2G and 3G speeds, if this is true; can someone verify?
"O2 use 2100MHz for 3G and 900/1800MHz for GSM (2G - Voice/GPRS).
The Nexus One supports these frequencies for both services."
Also, I've never unlocked, or rooted a phone before. This phone would NEED to be unlocked for her to be able to use it, right? Is it possible to unlock a phone without rooting it? I really am new to all of this. She's not a power user, so I'd like her to keep the stock build and get all the updates. Is that possible? To unlock the phone and keep everything stocked?
Can someone maybe help with that? Or should I just follow one of those guides to "unlock and flash the rom" guides that I've found all over the internet? I really want to just keep everything stock for her, with the exception of the phone being unlocked.
Whatever happens, will the Android market still be working for her?
Does anyone know how Google Maps would work on the phone for her, in the UK?
I'm basically in love with the girl, and we're trying to do everything we can to make the best of a long distance relationship. The main reason I want her to have an android phone (mine) is for her to be able to use Fring with me, and Google Chat - so I'd really hope those apps worked in the UK.
Any help on unlocking this bad boy is much appreciated.
Thank you XDA,
You guys are awesome - and I have all the respect in the world for you.

Hey Dude,
my US Nexus is working fine on O2 here in germany and there are no problems with 3G and 2G, so no worries. And afaik no Nexus One is sim-locked.
Hope this helps.

Siggi303 said:
Hey Dude,
my US Nexus is working fine on O2 here in germany and there are no problems with 3G and 2G, so no worries. And afaik no Nexus One is sim-locked.
Hope this helps.
Click to expand...
Click to collapse
That actually does help a lot - but,
did you purchase the unlocked Nexus from Google?
I can't confirm, but I've heard that both are different,
the T-Mobile version being sim locked.
I also have the APN settings from O2 U.K already
- I'm aware of that part.

Hi, I am on o2 in the uk and the nexus works Just fine (2g & 3g). Also, I thought the nexus wasn't sim locked, I certainly never had to unlock mine.

dazzawright said:
Hi, I am on o2 in the uk and the nexus works Just fine (2g & 3g). Also, I thought the nexus wasn't sim locked, I certainly never had to unlock mine.
Click to expand...
Click to collapse
Was yours purchased unlocked though?
Thank you

Europe uses the same bands in every country. Its a direction from the European Union so every phone bought in Europe will work in every country in Europe.
Coincidentally, T-MO US uses the same bands so you won't have any trouble with it. I have the T-MO US version here in Romania and works fine on 2G and 3G.
I don't think its sim locked. You should put an att sim in it, although you're only gonna get 2G. But that will show you if its sim locked or not.

I am pretty sure that although Google were selling the Nexus with a T-Mobile option there are no sim- or netlocked Nexus Ones - simply for the fact that Google did not want that. That is also how Vodafone handles the Nexus distribution here in germany: There is an option for a bundle with a contract and the Nexus you get with it is not sim- or netlocked.
Also, to answer another question of you: Yes, your gf will be able to use all functions (market, maps, etc.) without any rooting-action necessary.

lorin.bute said:
Europe uses the same bands in every country. Its a direction from the European Union so every phone bought in Europe will work in every country in Europe.
Coincidentally, T-MO US uses the same bands so you won't have any trouble with it. I have the T-MO US version here in Romania and works fine on 2G and 3G.
I don't think its sim locked. You should put an att sim in it, although you're only gonna get 2G. But that will show you if its sim locked or not.
Click to expand...
Click to collapse
That was a genius suggestion.
Popped in a co-workers ATT sim, and it worked
just fine with absolutely zero issues. Thank you!
AHHH I am so relieved. DDDDDDDDDDDDDD!
Siggi : Thank you also for that bit of information, you guys really just took a huge weight off my chest.

1. It will be fully functional on the provider you specified.
2. There is no such thing as SIM-locked Nexus.
3. It's fun using Fring video to show people places.

just for our your clarification: EVERY NEXUS ONE SOLD IS UNLOCKED, and, IT WILL WORK IN THE UK.
Settled.

zachthemaster said:
just for our your clarification: EVERY NEXUS ONE SOLD IS UNLOCKED, and, IT WILL WORK IN THE UK.
Settled.
Click to expand...
Click to collapse
Exactly.
I also got a Nexus One from Google US and it's working without any problems in germany.

Just remember, even though your Nexus One is unlocked, if you are on contract with T-Mobile and you cancel early, you will have to pay an ETF.

i9300 3g question

Hello,
I have just purchased an unlocked international version of the Galaxy s3 from newegg.ca
I'm not allowed to post the link to the product as I am a new member.
Before I bought it I noticed that it will work on Rogers (in Canada, where I am from) so I went ahead and ordered it. I went back to the site a few days later and noticed that in the details it says that this phone will only work on the AT&T 3g network. In Canada we don't use AT&T so basically I am stuck with a smart phone that I can't connect to a data network with. A useless phone. I can send it back and get a refund so it's really not a big problem. I am wondering however, if there is a way that I can get the phone to work on a rogers network? Is there anything I can do, or do I just have to send it back? Thanks.

HaZe905 said:
Hello,
I have just purchased an unlocked international version of the Galaxy s3 from newegg.ca
I'm not allowed to post the link to the product as I am a new member.
Before I bought it I noticed that it will work on Rogers (in Canada, where I am from) so I went ahead and ordered it. I went back to the site a few days later and noticed that in the details it says that this phone will only work on the AT&T 3g network. In Canada we don't use AT&T so basically I am stuck with a smart phone that I can't connect to a data network with. A useless phone. I can send it back and get a refund so it's really not a big problem. I am wondering however, if there is a way that I can get the phone to work on a rogers network? Is there anything I can do, or do I just have to send it back? Thanks.
Click to expand...
Click to collapse
So i am unsure about your carrier networks over there, but usually when a phone is locked to a carrier here in Australia, you really just need to pay an unlocking fee to use the other networks. Sure there might be some difference between their networks, but overall you should be able to get a working phone, maybe just not on the fastest mobile infrastructure.

TheFatHobbits said:
So i am unsure about your carrier networks over there, but usually when a phone is locked to a carrier here in Australia, you really just need to pay an unlocking fee to use the other networks. Sure there might be some difference between their networks, but overall you should be able to get a working phone, maybe just not on the fastest mobile infrastructure.
Click to expand...
Click to collapse
Hey thanks. It is already unlocked. But for some reason, which I don't understand, the 3g will only work with AT&T networks. I'm sure there is a way to fix it if it's rooted or something like that but I just don't know how.

strange, according to wikipedia both AT&T and Rogers use 850/1900MHz for their 3G, so if you buy a phone for the AT&T network, the 3G should work fine on Rogers..

omniwolf said:
strange, according to wikipedia both and use 850/1900MHz for their 3G, so if you buy a phone for the AT&T network, the 3G should work fine on Rogers..
Click to expand...
Click to collapse
yeah I wish I could post the link to the product. I even called the company and they said it would be AT&T only. I guess this is why noobs should just stick to carriers and contracts.. I can't sign a contract because I may be headed overseas (hence the international version of the phone) but I am just not knowledgeable enough to navigate this situation without risk, I suppose

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?

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.

Question Samsung ultra 21 Global or US version to purchase for rooting and AT

If I were to buy a Samsung 21 global version for rooting will it work with At&t network out of the box or should I just go for the US version and pay the money to get it unlocked if it is still possible. Also, does any one have any good links to get the global SM-G988b version of phone?
Edit: Accidentally hit enter when editing title.

AT&T has this whole whitelisting of the devices on their network for all features (like WiFi calling) to work. Better to buy a US unlocked variant. In the past, it has been possible to root Samsung US flagship versions.

Ah ok. I never cared about things like WIFI calling. I just wanted to still be able to make phone calls and get internet. Thanks for the info though. I still prefer the Global one if it works in the USA and so just wnateed to know if it will work in the usa.

Skizzlo said:
Ah ok. I never cared about things like WIFI calling. I just wanted to still be able to make phone calls and get internet. Thanks for the info though. I still prefer the Global one if it works in the USA and so just wnateed to know if it will work in the usa.
Click to expand...
Click to collapse
If you look at the bands, the Exynos S22 is lacking bands 260, 261 (5G mmwave bands) and bands 14,29,30,66 so the coverage won't be good

I have the 998b/ds i just purchased . When it came the card in the package said it wouldnt work on cricket. I went to cricket and called. Ran my imei and was told everything would work fine. Cricket if course is att.
I will be calling today and asking why my coverage is so horrible. I wouldnt have opened the phone if they had told me everything would work.
I am experiencing horrible reception at my home, which is in the mountains. My s20 ultra worked fine and got 5 g up here.
I will report back what i find out. As for now i am disappointed i am not getting 5g at all.

Ok thanks. So looks like USA Version is my best bet.