Database Info

Wifi calling

Hi guys, new to here.
I've searched high and low and I can't seem to find an answer.
I'm from the UK and have a BTU galaxy s7. I've just rooted it and have downloaded csc feature expert. Tried to enable wifi calling but nothing appears under phone settings.
Has anyone had any luck doing this? If so, info would be much appreciated.

It worked for me in USA on t mobile!! i didn't do anything special just outta the box connected to wifi and boom

I'm in the UK too, vodaphone network with wifi callinging activated on my account and similarly I can't activate in on my phone, because there is no "wificalling" enable selection on my Samsung S7 Edge phone settings, did you have any luck finding out how you can do it

LORD19191 said:
It worked for me in USA on t mobile!! i didn't do anything special just outta the box connected to wifi and boom
Click to expand...
Click to collapse
Do you have the international(G935F) or T mobile variant(G935T)?

bobormerod said:
I'm in the UK too, vodaphone network with wifi callinging activated on my account and similarly I can't activate in on my phone, because there is no "wificalling" enable selection on my Samsung S7 Edge phone settings, did you have any luck finding out how you can do it
Click to expand...
Click to collapse
According to the Vodafone S7/Edge forum Wi-Fi calling needs an update before it can be enabled. No idea when this will be out.
Sent from my Nexus 9 using Tapatalk

Philhoudmont said:
Hi guys, new to here.
I've searched high and low and I can't seem to find an answer.
I'm from the UK and have a BTU galaxy s7. I've just rooted it and have downloaded csc feature expert. Tried to enable wifi calling but nothing appears under phone settings.
Has anyone had any luck doing this? If so, info would be much appreciated.
Click to expand...
Click to collapse
It's working for me, but I got my S7 from EE.

OK Thanks. I contacted Samsung and they say wifi calling isn't part of their software, its a service provider software add on. I know EE have their wificalling working, where you download an App, whereas vodaphone are saying you don't need to download any app, so as you've said, vodaphone are advertising under false pretences, becasue their wificalling isn't up and running yet.....you'd think they'd get a system that works first, before advertising the facility......a case of waiting to see when Vodaphone get their act together

bobormerod said:
OK Thanks. I contacted Samsung and they say wifi calling isn't part of their software, its a service provider software add on. I know EE have their wificalling working, where you download an App, whereas vodaphone are saying you don't need to download any app, so as you've said, vodaphone are advertising under false pretences, becasue their wificalling isn't up and running yet.....you'd think they'd get a system that works first, before advertising the facility......a case of waiting to see when Vodaphone get their act together
Click to expand...
Click to collapse
To be fair to Vodafone (which is very difficult) their web site doesn't mention Wi-Fi calling for the S7 - only the S6. Several people on their forum have claimed that customer service told them it was enabled which doesn't surprise me in the slightest. As the new flagship phone why wouldn't it be enabled out of the box? Especially given EE didn't appear to have any problem doing it.
Anyway, I'm sure it will be along any time now... What I'd like to know is when they're going to enable Wi-Fi texts as well as calls.
P.S. You don't need an app for EE either. I believe EE and Vodafone work in the same way as opposed to O2 and 3 which use a separate app.
Sent from my Nexus 9 using Tapatalk

I just flashed EE version (from here http://www.sammobile.com/firmwares/database/SM-G930F/EVR/) G930FXXU1APB9 and WiFi calling options still do not show up. Please advice.

LORD19191 said:
It worked for me in USA on t mobile!! i didn't do anything special just outta the box connected to wifi and boom
Click to expand...
Click to collapse
Which version of the S7 do you have, the one T-Mobile sells, or an international variant?

hella356 said:
Which version of the S7 do you have, the one T-Mobile sells, or an international variant?
Click to expand...
Click to collapse
Hello friend , I bought the S7 (G930F) Unlocked international and it does not have the wifi calling , so if you find an answer please let me know

study~Yourself said:
Hello friend , I bought the S7 (G930F) Unlocked international and it does not have the wifi calling , so if you find an answer please let me know
Click to expand...
Click to collapse
AFAIK, there is no way to get WiFi calling on the Exynos variant. Sorry, it doesn't sound like it will ever be possible, so don't get your hopes up.

Flashing from Verizon to Tmobile. Please help with some clarification

Hello all! I have a s8+ from verizon. I am about to switch to T-Mobile at the end of this week. I have a spare unactivated T-Mobile sim and I have popped it in and it saw signal, and everything seemed good. Also with research I see that its appears just about 98% perfect. They say the HD Calling, and Wi-Fi calling are not working. I know I can flash the stock firmware from T-mobile and get those.
Here is the complication for me, I use Samsung Pay every single day, so I dont want to trip knox. Does flashing the firmware trip knox?

JediSamReye said:
Hello all! I have a s8+ from verizon. I am about to switch to T-Mobile at the end of this week. I have a spare unactivated T-Mobile sim and I have popped it in and it saw signal, and everything seemed good. Also with research I see that its appears just about 98% perfect. They say the HD Calling, and Wi-Fi calling are not working. I know I can flash the stock firmware from T-mobile and get those.
Here is the complication for me, I use Samsung Pay every single day, so I dont want to trip knox. Does flashing the firmware trip knox?
Click to expand...
Click to collapse
No flashing stock firmware doesn't trip Knox you'll be ok

funziebear said:
No flashing stock firmware doesn't trip Knox you'll be ok
Click to expand...
Click to collapse
Awesome thank you. So find a stock firmware, flash with odin, and drop in the tmobile sim and done right?
Also is there a good trusted place for the firmware? I normally do here or SamMobile but I havent been able to find it. Maybe my google fu isnt what it used to be

I'm going to be in the same boat will start looking into firmware, too!

Only way knox is tripped is by flashing a custom recovery.

JediSamReye said:
Hello all! I have a s8+ from verizon. I am about to switch to T-Mobile at the end of this week. I have a spare unactivated T-Mobile sim and I have popped it in and it saw signal, and everything seemed good. Also with research I see that its appears just about 98% perfect. They say the HD Calling, and Wi-Fi calling are not working. I know I can flash the stock firmware from T-mobile and get those.
Here is the complication for me, I use Samsung Pay every single day, so I dont want to trip knox. Does flashing the firmware trip knox?
Click to expand...
Click to collapse
Also I read that you might get hung up if you flash there's a thread that tells you how to do it properly on one of the s8 groups I say read that first just so u Don't have any issues

rando191 said:
I'm going to be in the same boat will start looking into firmware, too!
Click to expand...
Click to collapse
http://www.firmwares.androidinfotec...g955u-g955usqu1aqd9-nougat-official-firmware/
Try here, I found this. But I am not quite brave enough to start this flash. Should be fine. But hard to risk this phone for me

Why do this as the phone has all bands and Sammy has an program that sets up for each carrier.

pego99 said:
Why do this as the phone has all bands and Sammy has an program that sets up for each carrier.
Click to expand...
Click to collapse
What program might that be?
Sent from my Samsung Galaxy S8+

They are suppost to release it this year but I don't know what is called.

Curious, why u ditching verizon? I havs tmo and want to switch verizon. Tmo internet sucks some times. I know verizon is more expensive but i hate sending pic msgs. Have to wait to have good signal.

JediSamReye said:
http://www.firmwares.androidinfotec...g955u-g955usqu1aqd9-nougat-official-firmware/
Try here, I found this. But I am not quite brave enough to start this flash. Should be fine. But hard to risk this phone for me
Click to expand...
Click to collapse
Thanks- I'm also seeing some folks on other threads flashing the 955u1 XAA firmware and seeing positive results. Sounds like after they pop in their SIM, carrier details are downloaded. Just trying to get some items clarified before I do that.

I'm with Verizon I think T-Mobile is more hype than reality with coverage and speed.

I was able to get this working by following along with this thread: https://r.tapatalk.com/shareLink?ur...share_tid=3609487&share_fid=3793&share_type=t
Had to track down the eng boot for the 955u (which I can post when I'm home) but it was a simple as following all 25ish steps. I'm now fully TMB and have all features enabled. My phone does show TMB/TMB/VZW but all ims
and bands are enabled including volte, wifi calling and video calling.
Sent from my SM-G955U using Tapatalk

pego99 said:
I'm with Verizon I think T-Mobile is more hype than reality with coverage and speed.
Click to expand...
Click to collapse
Hasn't been my experience since switching. In fact the same phones I had on Verizon get better battery life on tmobile since they aren't looking for service all the time.
Sent from my SM-G955U using Tapatalk

S9+ Exynos on T-Mobile US Journey.

Just received my S9+ 256GB Korean Variant SM-G965N. This is going to be my experience with this particular variant and its compatibility with the T-Mobile network. Currently it shows I'm connected to Band 2 LTE but the speeds I'm my area are very slow. Withing the next couple days I'm am going to test the network throughout my area in Cali and test speeds and connectivity and report back. Unfortunately the build of Samsung pay is customized for S.korea only and not compatible here in the US.
Current build after first update is G965NKOU1ARC7
Baseband versions G965NKOU1ARC4

I have some data speeds this afternoon while out driving. The long screenshot is from my G965 and the short list of from a T-Mobile variant S7 . Connection to the network itself has been stable with no notice of dead spots or issues switching towers, if anything I'd say the switch is faster from what I've notice between devices.

Excellent...a lot of us have been waiting for this...thanks for testing...

I was curious about this. I have a G965U1(S9+ Unlocked North America variant).
I have a second phone with Ting GSM(T-Mobile), and I tried a few speed test. The phone configured it self to send calls over wifi when ever I connect to wifi. I found that peering with Sprint appears to be an issue.
Test 1:
http://www.speedtest.net/my-result/a/3760631925
Test 2:
http://www.speedtest.net/my-result/a/3760634735
Test 3:
http://www.speedtest.net/my-result/a/3760638116
These are all from the same location.
https://imgur.com/a/mYrqj

clockedtouch said:
Just received my S9+ 256GB Korean Variant SM-G965N. This is going to be my experience with this particular variant and its compatibility with the T-Mobile network. Currently it shows I'm connected to Band 2 LTE but the speeds I'm my area are very slow. Withing the next couple days I'm am going to test the network throughout my area in Cali and test speeds and connectivity and report back. Unfortunately the build of Samsung pay is customized for S.korea only and not compatible here in the US.
Current build after first update is G965NKOU1ARC7
Baseband versions G965NKOU1ARC4
Click to expand...
Click to collapse
Yo im one jealous F*** right now.... Lucky effen you, where did you order from?
Also, Samsung Pay is still force closing on most Oreo Builds, have been,....

Hey guys,
I also got an international S9+ (SM-G965F) but from Germany Unlocked (DBT). So far the signal seems to be great. Will post some Speedtests later. The only downside is that wifi calling and VoLTE is not there. It was working with my German sim. Other than that it's been great.

clockedtouch said:
Just received my S9+ 256GB Korean Variant SM-G965N. This is going to be my experience with this particular variant and its compatibility with the T-Mobile network. Currently it shows I'm connected to Band 2 LTE but the speeds I'm my area are very slow. Withing the next couple days I'm am going to test the network throughout my area in Cali and test speeds and connectivity and report back. Unfortunately the build of Samsung pay is customized for S.korea only and not compatible here in the US.
Current build after first update is G965NKOU1ARC7
Baseband versions G965NKOU1ARC4
Click to expand...
Click to collapse
Have you flashed T-Mobile CSC? I assume you have to root and make a custom zip to flash the files. If the phone thinks it's a legitimate T-Mobile phone then it give you full speeds.
Also is the Korean phone a duos? Dual SIM?

Psyscope said:
Have you flashed T-Mobile CSC? I assume you have to root and make a custom zip to flash the files. If the phone thinks it's a legitimate T-Mobile phone then it give you full speeds.
Also is the Korean phone a duos? Dual SIM?
Click to expand...
Click to collapse
I dont think that is possible. Isn't the Korean version run on Exynos? Flashing a Snapdragon CSC for TMB would be wonderful but I think would mess lots of thinks up. Hopefully someone will be able to change the CSC to work on the exynos processor.

Okay so the weirdest thing happened to me. I tried to use Samsung pay a few days ago. I used app cloner to copy the working version of my note 8 snapdragon and sent it to my S9+. It didn't work and gave me the connection error. Now I was just on the phone and out of boredom I tried to open Samsung pay again while on the phone and it magically worked. It asked me for my Iris and fingerprint and I was able to add my cards again. Again, this is on exynos DBT from Germany without any modifications or OEM unlock.
Hope this will help at least with Samsung pay.

Psyscope said:
Have you flashed T-Mobile CSC? I assume you have to root and make a custom zip to flash the files. If the phone thinks it's a legitimate T-Mobile phone then it give you full speeds.
Also is the Korean phone a duos? Dual SIM?
Click to expand...
Click to collapse
Yes am looking into seeing how I can configure the CSC to achieve full T-Mobile speeds. The Korean variant in not a duos.
AndroidDevices said:
Yo im one jealous F*** right now.... Lucky effen you, where did you order from?
Also, Samsung Pay is still force closing on most Oreo Builds, have been,....
Click to expand...
Click to collapse
I have a friend that works at Sammy S. Korea that picked it up for me, as for Samsung pay the apk is specifically built for the Korean market and has a different activation process which requires a text from one of the local carrier networks which I cant bypass.

Sunnyschlecht said:
Okay so the weirdest thing happened to me. I tried to use Samsung pay a few days ago. I used app cloner to copy the working version of my note 8 snapdragon and sent it to my S9+. It didn't work and gave me the connection error. Now I was just on the phone and out of boredom I tried to open Samsung pay again while on the phone and it magically worked. It asked me for my Iris and fingerprint and I was able to add my cards again. Again, this is on exynos DBT from Germany without any modifications or OEM unlock.
Hope this will help at least with Samsung pay.
Click to expand...
Click to collapse
The build is completely different and won't work because of the region and coding in this software build. I am not ready to root yet so I'm going to tinker with software that's official and see what I can get working, improve on for now.

Sunnyschlecht said:
Hey guys,
I also got an international S9+ (SM-G965F) but from Germany Unlocked (DBT). So far the signal seems to be great. Will post some Speedtests later. The only downside is that wifi calling and VoLTE is not there. It was working with my German sim. Other than that it's been great.
Click to expand...
Click to collapse
What operator do you use, I am at T-Mobile with a 695F and it does not connect at 4G.
Anyone has a clue?

titoh said:
What operator do you use, I am at T-Mobile with a 695F and it does not connect at 4G.
Anyone has a clue?
Click to expand...
Click to collapse
Not really. I'm also on T-Mobile USA and have the German exynos. The apn settings were loaded correctly. Maybe check them in the settings and make sure it's set correctly. The only thing that is not working is VoLTE and wifi calling.
Samsung pay finally works with the credit cards but the membership doesn't work.
Gesendet von meinem SM-G965F mit Tapatalk

titoh said:
What operator do you use, I am at T-Mobile with a 695F and it does not connect at 4G.
Anyone has a clue?
Click to expand...
Click to collapse
ow did you do the initial setup with or without the T-Mobile sim inserted ? I noticed when I originally set my Korean variant up without the sim, for some reason I did not connect to LTE in my area and after oem unlock and restart/ full wipe it connected perfectly since.

I've got the same model, I'm with ATT, speed test shows 31m down and 10m up, but actual downland from play store is less than 2m...

Hi do you receive benefits in your samsung members app?

Yes if we can get T-Mobile CSC settings to enable VoLTE and Wifi calling then I will root.
I am recently realizing Samsung Pay is not everything it's cracked up to be. It doesn't seem like they have many 3rd party companies registered, so I made a custom loyalty with the barcode, but it doesn't work when it's scanned at checkout. Funnily enough, I have the loyalty in GPay as well, and it works just fine. Also SPay doesn't seem to work in gas station cc readers where you stick the card in and pull it out instead of swipe. Unfortunately it just doesn't seem like the technology is there yet where we can ditch traditional cards.

snooyy said:
I've got the same model, I'm with ATT, speed test shows 31m down and 10m up, but actual downland from play store is less than 2m...
Click to expand...
Click to collapse
ill trade u lol

@clockedtouch, a few months later now, are you still on the 965F & TMo US? Any update wrt VoLTE?
EDIT: nm, thanks to @TEKHD N8/S8x/S9x OREO USA T-Mobile EFS-CSC DETONATOR v2.2 INT TEKHD

Unlocked Version on Sprint

I cant seem to find out. Will the unlocked version work on Sprint. I get a much better deal if I preorder the unlocked version, but I'm on Sprint

The previous ones did, so I don't see why not. It supports Sprint's CDMA bands. That's the one I ordered. Pretty confident that it'll work.

jygsaw said:
The previous ones did, so I don't see why not. It supports Sprint's CDMA bands. That's the one I ordered. Pretty confident that it'll work.
Click to expand...
Click to collapse
Thanks. I know the OTA updates take longer, but I get more off if I order that one and trade my Note 8. Im only getting the regular Note 10. I feels more like my beloved Note 7's size.

I have an unlocked Note 8 that I use on Sprint. I actually loaded the Sprint firmware to get VoLTE as well. I plan to do the same with the Note 10+.

ctasich said:
I have an unlocked Note 8 that I use on Sprint. I actually loaded the Sprint firmware to get VoLTE as well. I plan to do the same with the Note 10+.
Click to expand...
Click to collapse
Sprint firmware? I ordered the base Note 10 unlocked and got a Sprint sim card for it directly from Samsung using their Galaxy forever program. I can trade it every year and basically be paying 1/2 the cost of a new one. It will ship on 9/4. The Note 10+ is just way to big for my small hands. I'll keep my Note 9 as a backup, traded the Note 8, and the Note 9 will be used when I need higher specs. I do like the thinness of the base Note 10 as well. Looking forward to it.

kbboykin said:
Sprint firmware? I ordered the base Note 10 unlocked and got a Sprint sim card for it directly from Samsung using their Galaxy forever program. I can trade it every year and basically be paying 1/2 the cost of a new one. It will ship on 9/4. The Note 10+ is just way to big for my small hands. I'll keep my Note 9 as a backup, traded the Note 8, and the Note 9 will be used when I need higher specs. I do like the thinness of the base Note 10 as well. Looking forward to it.
Click to expand...
Click to collapse
I too ordered the Note 10 as + would be too big When you get your new phone and put in Sprint sim, check to see if you have anything missing, feature wise(WiFi calling, VoLTE). If you don't then you are fine, if you do, then flashing Sprint firmware is an alternative.

Charkatak said:
I too ordered the Note 10 as + would be too big When you get your new phone and put in Sprint sim, check to see if you have anything missing, feature wise(WiFi calling, VoLTE). If you don't then you are fine, if you do, then flashing Sprint firmware is an alternative.
Click to expand...
Click to collapse
Got the unlocked with a Sprint sim from Samsung
Wifi calling and VoLTE seem to be intact. But keeps saying WiFi calling app missing. Radio signal can be weak at times.

kbboykin said:
Got the unlocked with a Sprint sim from Samsung
Wifi calling and VoLTE seem to be intact. But keeps saying WiFi calling app missing. Radio signal can be weak at times.
Click to expand...
Click to collapse
Hmm, WiFi calling is built into the system, so there should not be an app needed here. Did you transfer your data, settings from your previous phone? Maybe that device had wifi calling app which got onto your new device and somehow conflicts with the current settings

Charkatak said:
Hmm, WiFi calling is built into the system, so there should not be an app needed here. Did you transfer your data, settings from your previous phone? Maybe that device had wifi calling app which got onto your new device and somehow conflicts with the current settings
Click to expand...
Click to collapse
Yes, initially restored from Samsung backup, then from smart switch. I just wanna make sure I have the best modem firmware. This is the first time in a long time I'm getting 1x or 3G signal where I always got 4G/LTE.

kbboykin said:
Yes, initially restored from Samsung backup, then from smart switch. I just wanna make sure I have the best modem firmware. This is the first time in a long time I'm getting 1x or 3G signal where I always got 4G/LTE.
Click to expand...
Click to collapse
So you have Note10+ or the regular note10? You can flash it with SPR firmware, it is available on SamFirm

Charkatak said:
So you have Note10+ or the regular note10? You can flash it with SPR firmware, it is available on SamFirm
Click to expand...
Click to collapse
I have the Note 10.

kbboykin said:
I have the Note 10.
Click to expand...
Click to collapse
I can't really say what would the best modem be, but I think the carrier would have as they test it on their network

Charkatak said:
I can't really say what would the best modem be, but I think the carrier would have as they test it on their network
Click to expand...
Click to collapse
If I flash it, could I use any other carrier in the future? Would it be better to get OTA updates?

kbboykin said:
If I flash it, could I use any other carrier in the future? Would it be better to get OTA updates?
Click to expand...
Click to collapse
If you flash it to SPR, you would get OTA updates when Sprint pushes it and you will be able to re-flash it to original unlocked firmware or to another carrier. I have T-Mobile firmware on my Note10

Charkatak said:
If you flash it to SPR, you would get OTA updates when Sprint pushes it and you will be able to re-flash it to original unlocked firmware or to another carrier. I have T-Mobile firmware on my Note10
Click to expand...
Click to collapse
So, reading the other threads, since I have the U1 model, do I flash tube U or U1 firmware?

kbboykin said:
So, reading the other threads, since I have the U1 model, do I flash tube U or U1 firmware?
Click to expand...
Click to collapse
U1 is what you have. You need U, if you want SPR firmware. Run SamFirm app on your PC and type in your model as: SM-N970U and for region put: SPR. See if Auto is selected and and on the right side see if Check crs32 and decrypt auto is selected hit check update

Charkatak said:
U1 is what you have. You need U, if you want SPR firmware. Run SamFirm app on your PC and type in your model as: SM-N970U and for region put: SPR. See if Auto is selected and hit check update and on the right side see if Check crs32 and decrypt auto is selected
Click to expand...
Click to collapse
I know this is a dumb question, but if I flash this will my phone still be unlocked?

kbboykin said:
I know this is a dumb question, but if I flash this will my phone still be unlocked?
Click to expand...
Click to collapse
Flashing doesn't sim lock your phone

Charkatak said:
Flashing doesn't sim lock your phone
Click to expand...
Click to collapse
Ok, thanks for all the info and help.

kbboykin said:
Ok, thanks for all the info and help.
Click to expand...
Click to collapse
No problem. If you decide to do it and have more questions, just reply

Unlocked Pre-Order from Samsung w ATT SIM - will I be able to use WiFi calling /VoLTE

Current Note8 user on ATT (phone locked to carrier). I pre-ordered a Note20 Ultra from Samsung direct, unlocked version. Have been off XDA really for a couple years and not rooting/modding much lately but have read that ATT will not allow unlocked phones on their network to use WiFi Calling and/or VoLTE. If true, are there workaround options for me (assuming I stick w ATT as the carrier I mean) to get these to work, or should I cancel the unlocked model and order the ATT version? Was hoping to root eventually and remove bloatware / play w custom ROMs again on the Ultra etc etc. - that is why I ordered an unlocked version.
Thanks gents for the guidance here! Best forum around for us phone geeks

If it will be like Note 9 or 10 plus just have to flash the U version csc with odin and it will give you wifi calling advanced..messaging..volte
Sent from my SM-N960U using Tapatalk

butchieboy said:
If it will be like Note 9 or 10 plus just have to flash the U version csc with odin and it will give you wifi calling advanced..messaging..volte
Sent from my SM-N960U using Tapatalk
Click to expand...
Click to collapse
Much thanks - I will do this then when it arrives.

Did not work for me on the unlocked note 10+. Worked right away on the tmobile.
Att was actually fun to have. Nothing that att expected worked on the unlocked device. For example I had unlimited hotspot, despite it was not included in my att plan.

Elastep said:
Did not work for me on the unlocked note 10+. Worked right away on the tmobile.
Att was actually fun to have. Nothing that att expected worked on the unlocked device. For example I had unlimited hotspot, despite it was not included in my att plan.
Click to expand...
Click to collapse
That's bizarre. I am rethinking this unlocked route. I must have wifi calling since signal at the house is terrible in my area. I don't need the drama of uncertainty if this will work or not. Might as well cancel the unlocked one and just upgrade via att. Oy. Wtf is with att these days? They lost my directv account last year and now their wireless policies are looking like a royal pita.

I don't think you have to worry .... ATT seems to consistently allow Samsung unlocked devices to have carrier functions
You just have to flash the U CSC as mentioned above. Worked for me on Note 10 and is currently working on a s20 ultra device

Jcrompton
Whats going on buddy. You jumping on the Ultra?
Sent from my SM-N975U using Tapatalk

I strongly recommend switching your order to the ATT model. I got my note 10+ unlocked based off the suggestions found here saying that flashing the att firmware would give me all the features, and I've been through a year of headaches.
For a little wile i was able to enjoy wifi calling, voicemail and VOLTE, but after my first software update the features were lost. i was able to get them back briefly by putting my sim back in an old Att phone and keeping it for a day or two, but that trick never lasted past a week. I've tried re-flashing the software, switching back to unlocked and then back to ATT, basically anything i could think of and it never worked.
calling ATT didn't help either, as the reps gave me a canned line about not supporting outside phones. the whole reason I'm updating to the 20 ultra is to just get my phone fully functional with an ATT model

Darthshadow666 said:
I strongly recommend switching your order to the ATT model. I got my note 10+ unlocked based off the suggestions found here saying that flashing the att firmware would give me all the features, and I've been through a year of headaches.
For a little wile i was able to enjoy wifi calling, voicemail and VOLTE, but after my first software update the features were lost. i was able to get them back briefly by putting my sim back in an old Att phone and keeping it for a day or two, but that trick never lasted past a week. I've tried re-flashing the software, switching back to unlocked and then back to ATT, basically anything i could think of and it never worked.
calling ATT didn't help either, as the reps gave me a canned line about not supporting outside phones. the whole reason I'm updating to the 20 ultra is to just get my phone fully functional with an ATT model
Click to expand...
Click to collapse
Thanks darth. Yeah, I switched to the att version. Hate the hidden tracking bloatware etc that comes with it but must have a very workable phone for daily work calls and wifi calling is a must. No drama is my motto these days. Thank you for reporting your experience.

I had the same situation with my unlocked Pixel 4 XL, keep calling ATT until I got the right person to modify my sim to allow WiFi Calling to work, that's my plan when I get my unlocked 20 Ultra.

I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
jaxf250 said:
Current Note8 user on ATT (phone locked to carrier). I pre-ordered a Note20 Ultra from Samsung direct, unlocked version. Have been off XDA really for a couple years and not rooting/modding much lately but have read that ATT will not allow unlocked phones on their network to use WiFi Calling and/or VoLTE. If true, are there workaround options for me (assuming I stick w ATT as the carrier I mean) to get these to work, or should I cancel the unlocked model and order the ATT version? Was hoping to root eventually and remove bloatware / play w custom ROMs again on the Ultra etc etc. - that is why I ordered an unlocked version.
Thanks gents for the guidance here! Best forum around for us phone geeks
Click to expand...
Click to collapse

What worries me is the 5G. Will unlocked work for ATT 5G?

It does on my unlocked Galaxy S20+ 5G. The Note 20 Ultra is a ways to release and their system doesn't yet correctly identify the IMEI, so I can't say for sure what will happen after release day.
b00st4ddicted said:
What worries me is the 5G. Will unlocked work for ATT 5G?
Click to expand...
Click to collapse

pdagal said:
I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
Click to expand...
Click to collapse
Hi Lisa,
Your reviews are the best, so thank you first of all. Can you check if it has any eSIM capabilities? Supposedly S20 was going to get an update to allow eSIM use in US but that never happened...

Thanks . I'm not seeing anything under connection settings on our US unlocked Note 20 Ultra (there's no IMEI listed or cellular network option listed under connection settings when no nano SIM is installed. EsimClient is running on the phone, which makes me think the hardware must be there. EsimClient is not running on my GS 20+ unlocked.
VICosPhi said:
Hi Lisa,
Your reviews are the best, so thank you first of all. Can you check if it has any eSIM capabilities? Supposedly S20 was going to get an update to allow eSIM use in US but that never happened...
Click to expand...
Click to collapse

pdagal said:
Thanks . I'm not seeing anything under connection settings on our US unlocked Note 20 Ultra (there's no IMEI listed or cellular network option listed under connection settings when no nano SIM is installed. EsimClient is running on the phone, which makes me think the hardware must be there. EsimClient is not running on my GS 20+ unlocked.
Click to expand...
Click to collapse
Great, thank you for checking and comparing with S20+ !
eSIMClient running gives me hope that we will get eSIM support in an update...Still perplexed how or why Samsung has gone out of the way to disable eSIM on US variants when Apple, Google support it.

pdagal said:
I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
Click to expand...
Click to collapse
Ha! Thanks Lisa (love your tech vids!!) - I switched to the ATT version. Supposed to be here 8/21. I can't take a chance with wifi calling being borked, or that just that I may need to Odin-flash updates or CSC packs periodically to keep up with the monthly patches (ie force an unlocked unit to keep working on ATT's network if my previous firmware gets overwritten etc. I mean). I guess as I got older I went from a tech pioneer and adopter to just an end user LOL.... I just need it to work. Maybe I can do that package remove thingy and chop the bloatware periodically... we shall see once the community gets these units and starts their dev magic for us.
I guess I will need to make an appt at the local ATT store in a week to get on a new 5G plan from my current 4G one to take advantage of the coming speeds.

You're welcome- glad you enjoy our vids! With AT&T, you can simply change your plan online, no need to visit a store. The mid and high tier unlimited plans include 5G.
jaxf250 said:
Ha! Thanks Lisa (love your tech vids!!) - I switched to the ATT version. Supposed to be here 8/21. I can't take a chance with wifi calling being borked, or that just that I may need to Odin-flash updates or CSC packs periodically to keep up with the monthly patches (ie force an unlocked unit to keep working on ATT's network if my previous firmware gets overwritten etc. I mean). I guess as I got older I went from a tech pioneer and adopter to just an end user LOL.... I just need it to work. Maybe I can do that package remove thingy and chop the bloatware periodically... we shall see once the community gets these units and starts their dev magic for us.
I guess I will need to make an appt at the local ATT store in a week to get on a new 5G plan from my current 4G one to take advantage of the coming speeds.
Click to expand...
Click to collapse

I flashed my unlocked Note 10 plus and didnt get wifi calling, visual voicemail, VOLTE.....only reason I am up grading is to get an ATT version, and to skip all the hassle of an unlocked version. Never again.

pdagal said:
I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
Click to expand...
Click to collapse
Could you tell me more. I have the US unlocked note 20 ultra, I put an AT&T sim in (from my note 9 unlocked) and I can't find an option to turn on wifi calling. I pretty much gave up on feature like this, because I would rather have the unlocked phone, but if it works now maybe I am missing something.
Thanks
Sent from my Samsung SM-N960U1 using XDA Labs