Samsung S8 - Unlocked Phone - No Wifi Calling? What Else Am I Missing - Samsung Galaxy S8 Questions and Answers

I bought an unlocked S8 at Best Buy because it was a good deal.
However, I'm noticing AT&T is restricting Wifi calling. There isn't even an option to turn in on.
Are they preventing this? If so, can I get it turned on by them ? I'm assuming there is a ROM I could flash to get it, but I would hate nothing during flashing bricking my phone.
Any other features I'm missing? Since I have really bad coverage at my desk at work, WIFI calling is important to me. I'm considering returning the phone and going to ATT brand, but there is a $35.00 restocking fee. I feel Best Buy should have told me the downsides of an unlocked.

I didn't get any restocking fee when I returned my ATT S8. Got a full refund, no questions asked. Besides if you're just swapping out to another carrier one, I'm sure they will waive it. I have MintSim (Tmo) and WiFi calling can be enabled and works fine for me on the unlocked firmware on my Vzw S8.

AFAIK, AT&T does not allow wifi calling for non-branded phones.

Can anyone explain to my why this would be? Is there any technical reason that they cannot do this on an non branded phone or are they being difficult?
I know it could be that they are strong armming me into another 2 year agreement, but if I can't use Wifi Calling, I cannot use their service due to poor reception at work. I think it would be in their best interest to let me use this feature.
Everyone I talked to on phone and in store basically act like it should be fine.
PS Running Android 7.0

bdaoust said:
Can anyone explain to my why this would be? Is there any technical reason that they cannot do this on an non branded phone or are they being difficult?
I know it could be that they are strong armming me into another 2 year agreement, but if I can't use Wifi Calling, I cannot use their service due to poor reception at work. I think it would be in their best interest to let me use this feature.
Everyone I talked to on phone and in store basically act like it should be fine.
PS Running Android 7.0
Click to expand...
Click to collapse
I am slightly confident that CSC (country/carrier specific code) patch can fix this issue but you would need to look into the other section for that and I say this because it fixed VoLTE issue for some other guys...

WiFi is not possible on AT&T network with the Unlocked version of S8 phones
This may help others who are considering the Unlocked S8.
Note: As of today, no options available from either AT&T or Samsung to enable WiFi calling.
After multiple trips to AT&T, BestBuy Samsung, chat sessions with Samsung support and now calling Samsung Premium Care, I finally confirmed that the Unlocked S8 model does not have any possible software upgrade to enable WiFi calling. Why did so many not know?
Samsung:
Please revise your website to clearly state the limitation, (WiFi is not possible on AT&T network ), with the Unlocked version of your S8 phones.
What's Next?
I was told that there is nothing that Samsung can do for me but Return the phone for Refund.
Now returning this phone requires me to again pay additional cost for replacing/activating another SIM for my old phone to use during the time I process an order for my next phone. Samsung cost me hours of my time and wasted my money.
bdaoust said:
I bought an unlocked S8 at Best Buy because it was a good deal.
However, I'm noticing AT&T is restricting Wifi calling. There isn't even an option to turn in on.
Are they preventing this? If so, can I get it turned on by them ? I'm assuming there is a ROM I could flash to get it, but I would hate nothing during flashing bricking my phone.
Any other features I'm missing? Since I have really bad coverage at my desk at work, WIFI calling is important to me. I'm considering returning the phone and going to ATT brand, but there is a $35.00 restocking fee. I feel Best Buy should have told me the downsides of an unlocked.
Click to expand...
Click to collapse

dealing with the same thing and entirely frustrated. so much wasted time that a simple disclaimer would've saved me from.

wifi calling is a feature enabled by a carrier, not the phone brand. if you want wifi-calling, flash the relevant firmware for your carrier just like i did for VZW to get wifi-calling to work. and btw, this information was widely known by doing some research previous to purchase. i had no problem finding this out but ordered anyway with the intent to flash the firmware.

knightsfury said:
wifi calling is a feature enabled by a carrier, not the phone brand. if you want wifi-calling, flash the relevant firmware for your carrier just like i did for VZW to get wifi-calling to work. and btw, this information was widely known by doing some research previous to purchase. i had no problem finding this out but ordered anyway with the intent to flash the firmware.
Click to expand...
Click to collapse
i flashed it with straight up ATT, all files from here:
joe3681 said:
AT&T QF7 (latest fw)
Click to expand...
Click to collapse
and wifi calling won't work. just gives me this message:
"Oops!
We can't turn on Wi-Fi Calling for your account. Think this message is a mistake? Ask the person who can make account changes to call us..."
After numerous calls to Samsung and AT&T you absolutely cannot enable wifi calling on the unlocked phone. Only phones purchased as AT&T branded are allowed the full feature set.
If in fact you DID buy an AT&T S8, you can unlock it and keep said features, but not in reverse of that. Which blows.

fremitus said:
i flashed it with straight up ATT, all files from here:
and wifi calling won't work. just gives me this message:
"Oops!
We can't turn on Wi-Fi Calling for your account. Think this message is a mistake? Ask the person who can make account changes to call us..."
After numerous calls to Samsung and AT&T you absolutely cannot enable wifi calling on the unlocked phone. Only phones purchased as AT&T branded are allowed the full feature set.
If in fact you DID buy an AT&T S8, you can unlock it and keep said features, but not in reverse of that. Which blows.
Click to expand...
Click to collapse
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!

joe3681 said:
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!
Click to expand...
Click to collapse
flashing other carriers might work (like Tmobile), but not with ATT as they are using based on the IMEI registered with ATT brand.. so flashing any CSC won't enable it as long as you spoke to their customer care and provide your No and other ATT phone to activate Wifi calling on your number.. this is not 100% working method.. search through teh CSC selection forum there people posted a workaround.

KeithDo said:
This may help others who are considering the Unlocked S8.
Note: As of today, no options available from either AT&T or Samsung to enable WiFi calling.
After multiple trips to AT&T, BestBuy Samsung, chat sessions with Samsung support and now calling Samsung Premium Care, I finally confirmed that the Unlocked S8 model does not have any possible software upgrade to enable WiFi calling. Why did so many not know?
Samsung:
Please revise your website to clearly state the limitation, (WiFi is not possible on AT&T network ), with the Unlocked version of your S8 phones.
What's Next?
I was told that there is nothing that Samsung can do for me but Return the phone for Refund.
Now returning this phone requires me to again pay additional cost for replacing/activating another SIM for my old phone to use during the time I process an order for my next phone. Samsung cost me hours of my time and wasted my money.
Click to expand...
Click to collapse
Time I understand. You will never get that back. The SIM card issue I don't understand. Didn't you keep the old sim card from your old phone. Yes, AT&T will have to reactivate it, but they should do that for free. The only time I've had to pay is when I needed to get a new physical SIM card because the size was wrong for the phone I wanted to use. If you kept the old SIM card, you can simply reactivate it and stick it in your old phone again.

joe3681 said:
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!
Click to expand...
Click to collapse
it's all tied to your IMEI, and that can't be changed. the VoLTE and Wifi Calling are non-existent unless you bought an ATT branded phone.

Guys ... I'm still looking for other options BUT this will work ....
If you have a business account you can just go in to the account and change your billing acct IMEI for your unlocked phone to an IMEI of an AT&T S8 (get one from a friend, go to the store and check out the displays, etc)
If you don't have a business acct call support , eventually you can get a person that knows what to do and they can plug in a working IMEI
This works ... works on my S7 Edge as well

Flashed unlocked phone with ATT FW. Then changed my account's imei with the imei from an ATT branded phone and that got me advanced calling options. Wifi calling will worked for about 10 seconds until ATT reads the phone's actual imei and then they turn off wifi calling. Volte will continue to work.

AT&T OTA Update Coming
All, I have just confirmed with AT&T they have made the request for an OTA update to enable WiFi Calling in the Settings Menu from Samsung. The time frame I was given as of yesterday 10/2/2017 was 14 days. So by 10/16/2017 S8 & S8+ phones should receive an OTA update that enables WiFi Calling feature.

vanornum said:
All, I have just confirmed with AT&T they have made the request for an OTA update to enable WiFi Calling in the Settings Menu from Samsung. The time frame I was given as of yesterday 10/2/2017 was 14 days. So by 10/16/2017 S8 & S8+ phones should receive an OTA update that enables WiFi Calling feature.
Click to expand...
Click to collapse
Very interesting! This would be a life saver. Do you trust their timeframe?
Sent from my Nexus 7 using Tapatalk

Hey. I finally found the Wifi calling settings.
Phone/ Dialer > Context Menu (the three dots on top right corner) > Settings > Wi-Fi calling > And I see my three options there.
I'm on Galaxy S8 G9500U1
Sent from my SM-G950U1 using Tapatalk

aravreddy2231 said:
Hey. I finally found the Wifi calling settings.
Phone/ Dialer > Context Menu (the three dots on top right corner) > Settings > Wi-Fi calling > And I see my three options there.
I'm on Galaxy S8 G9500U1
Sent from my SM-G950U1 using Tapatalk
Click to expand...
Click to collapse
Hmm, I don't see them (yet?)... SM-G955U1 with phone app version 2.3.00.20. What version of the app do you have?
Sent from my SM-G955U1 using Tapatalk

Same
Sent from my SM-G950U1 using Tapatalk

Related

S7 International on AT&T carrier

Anyone using S7 International version on US AT&T carrier?
Care to report any issues? Drawbacks? Limitations, etc?
I'm curious about the this as well
If so, any issues, like with GPS? Also does Samsung pay work?
I don't get why Samsung has made this so complicated: some of us want t faster updates, custom roms etc and are willing to pay for it. And in this particular case a slightly faster more efficient variant.
I just got the 930f, and using it on cricket. So far, I see no drawbacks, but I haven't used it enough. Cricket was auto detected and APN settings already configured. The 930f from ebay was sealed, and no European sim needed.
anywho said:
I just got the 930f, and using it on cricket. So far, I see no drawbacks, but I haven't used it enough. Cricket was auto detected and APN settings already configured. The 930f from ebay was sealed, and no European sim needed.
Click to expand...
Click to collapse
Does Cricket use AT&T towers?
martinezma99 said:
Does Cricket use AT&T towers?
Click to expand...
Click to collapse
yes, it is att owned mvno.
Anyone else on AT&T?
Been debating if I want to get this variant as well. Anybody know if AT&t LTE work? Online claims that the phone does support it, but would rather have someone verify it before I purchased it.
chungdae said:
Been debating if I want to get this variant as well. Anybody know if AT&t LTE work? Online claims that the phone does support it, but would rather have someone verify it before I purchased it.
Click to expand...
Click to collapse
LTE works fine, but this is missing band 30. But Band 30 is very new, and I believe it's mainly big city markets that use it.
^great thank you for the info
I got the international S7 Edge (935f) and I am using it on ATT.
The ebay sellers remove the region lock before shipping, which requires a 10 minute call in the originating country. I also had no issues when putting my ATT sim in and didn't have to change APN settings or anything, it all worked immediately. I get 4G LTE and speeds are typical for what I am used to. I could also use my phone as a wireless hotspot right away, which was very important to me, and something ATT does not allow without a separate plan. No band 30 as was mentioned, but I can live without that. Also, no samsung pay (for the time being), and no voice over LTE, which I never used before anyway. You're also on your own for warranty.
Not many disadvantages to taking the international over the carrier brand, and you will get a lower cost, bloat free, and rootable/fully customizable phone as an advantage. Very happy w/ my purchase.
Hisma said:
I got the international S7 Edge (935f) and I am using it on ATT.
The ebay sellers remove the region lock before shipping, which requires a 10 minute call in the originating country. I also had no issues when putting my ATT sim in and didn't have to change APN settings or anything, it all worked immediately. I get 4G LTE and speeds are typical for what I am used to. I could also use my phone as a wireless hotspot right away, which was very important to me, and something ATT does not allow without a separate plan. No band 30 as was mentioned, but I can live without that. Also, no samsung pay (for the time being), and no voice over LTE, which I never used before anyway. You're also on your own for warranty.
Not many disadvantages to taking the international over the carrier brand, and you will get a lower cost, bloat free, and rootable/fully customizable phone as an advantage. Very happy w/ my purchase.
Click to expand...
Click to collapse
I'm curious if the Samsung Pay app is missing or if it's present and just unable to be configured due to the model number. Thanks! Also, I read someone complaining about GPS with their SM-G935F here in the US. Can't imagine why that would be, but have you had any issues in that area?
samsung pay is not even present. It needs to be baked in by the carrier.
As for GPS, it's perfectly fine. I used it earlier today and it locked in & got me where I needed to go without issue. I don't see why people would say GPS would be impacted by an international phone? GPS will be the same in all of these, and it will connect to the same satellites all the other carriers would use. This isn't like a car where it needs to have region-specific maps pre-loaded.
Does VoLTE work?
myphone12345 said:
Does VoLTE work?
Click to expand...
Click to collapse
No
No but I am using an AT&T version G935A in Canada. Works flawlessly!
If I get the international model, will the phone auto update the APN settings on its own?
Capt said:
If I get the international model, will the phone auto update the APN settings on its own?
Click to expand...
Click to collapse
Read my first response.
Sent from my SM-G935F using Tapatalk
Isn't samsung pay downloadble from the play store now (and APKMirror)? I'm curious if it works once it's installed on the phone.
Hisma said:
samsung pay is not even present. It needs to be baked in by the carrier.
As for GPS, it's perfectly fine. I used it earlier today and it locked in & got me where I needed to go without issue. I don't see why people would say GPS would be impacted by an international phone? GPS will be the same in all of these, and it will connect to the same satellites all the other carriers would use. This isn't like a car where it needs to have region-specific maps pre-loaded.
Click to expand...
Click to collapse
Read up on A-GPS: https://en.wikipedia.org/wiki/Assisted_GPS
myphone12345 said:
Read up on A-GPS: https://en.wikipedia.org/wiki/Assisted_GPS
Click to expand...
Click to collapse
Thanks for that. Wasn't aware that they combine the Internet connection with the GPS in these phones, makes sense though.
Still, I speak from personal experience with the phone, GPS locks instantly and works great with Google maps. Haven't used it with any other 3rd party apps yet though. If others have had issues I'd like to hear their personal accounts.
Sent from my SM-G935F using Tapatalk

New SM-g935fd owner in USA confused

I caveat by saying the forum would not let me post anywhere but the general forum right now so that's why I'm posting here.
I've read a bunch of conflicting threads and info lately but nothing concise in regards to what I'm trying to do and need some help.
This is my first ever android phone. I'm coming from an iPhone 6 as a heavy business user. WiFi Calling is extremely important because my house has terrible cell reception. I recently purchased an SM-G935FD (duos phone) and I'm a USA AT&T customer. I rooted the phone day one but had not yet swapped the SIM card. I chose the DUOs because I do quite a bit of international travel and I liked the hardware of the XYNOS platform better than snapdragon. Unfortunately I didn't realize or suspect that WiFI calling would potentially become a problem. I could care less about Samsung or Apple Pay for that matter, nor do I really care about Voltos. But wifi calling is a deal breaker.
I rooted the phone, and I put flash fire on there but really don't know how to use it. I found some people saying that my phone can accept both the SM-G935F firmwares and FD firmwares, but others who were skeptical. And people saying that there were firmwares that did have wifi calling enabled and others who said no.
At the moment I am back on the iPhone 6 because the Samsung is useless to me until I figure out how to get wifi calling enabled on there.
So... I'm confused. IS there a firmware I can flash my rooted unlocked S7 that will enable this? How exactly do I go about doing that with either flash fire or smart switch? I looked, but I am having difficulty finding a guide on doing this. The phone is already a paperweight, but I don't want to brick it as well lol.
Thanks for the help.
Usaf-lt-g said:
I caveat by saying the forum would not let me post anywhere but the general forum right now so that's why I'm posting here.
I've read a bunch of conflicting threads and info lately but nothing concise in regards to what I'm trying to do and need some help.
This is my first ever android phone. I'm coming from an iPhone 6 as a heavy business user. WiFi Calling is extremely important because my house has terrible cell reception. I recently purchased an SM-G935FD (duos phone) and I'm a USA AT&T customer. I rooted the phone day one but had not yet swapped the SIM card. I chose the DUOs because I do quite a bit of international travel and I liked the hardware of the XYNOS platform better than snapdragon. Unfortunately I didn't realize or suspect that WiFI calling would potentially become a problem. I could care less about Samsung or Apple Pay for that matter, nor do I really care about Voltos. But wifi calling is a deal breaker.
I rooted the phone, and I put flash fire on there but really don't know how to use it. I found some people saying that my phone can accept both the SM-G935F firmwares and FD firmwares, but others who were skeptical. And people saying that there were firmwares that did have wifi calling enabled and others who said no.
At the moment I am back on the iPhone 6 because the Samsung is useless to me until I figure out how to get wifi calling enabled on there.
So... I'm confused. IS there a firmware I can flash my rooted unlocked S7 that will enable this? How exactly do I go about doing that with either flash fire or smart switch? I looked, but I am having difficulty finding a guide on doing this. The phone is already a paperweight, but I don't want to brick it as well lol.
Thanks for the help.
Click to expand...
Click to collapse
u need to go read over the custom roms and recoverys forum for the s7 edge.
ecg803 said:
u need to go read over the custom roms and recoverys forum for the s7 edge.
Click to expand...
Click to collapse
Actually I think I got it figured out. I changed the CSC using TWRC over to an att USA CSC and that seems to have at least enabled the menus for this functionality. I haven't moved the SIM back over there to test it though.
Sent from my iPhone using Tapatalk
I would move this thread to the AT&T specific section. My understanding is that specific drivers are needed to do WiFi calling on AT&T and it's not baked in and the model you bought is not sold in the states whether it's sim unlocked or not. Also, why would you root/jailbreak a phone running an OS that you have no real experience with? If you can't get it to work then I'd return it and either buy the AT&T version outright an have them unlock it for you or go to Best Buy, Amazon or Samsung themselves and buy the single sim unlocked version. You may still have issues with that unlocked version if AT&T's Wifi calling is as locked up as I remember. T-Mobiles wifi calling works with your handset but it also has oddities such as the TMO sim must be in sim slot 1 to work. Because that model is not normally used with U.S. carriers .. they kinda don't give a crap about it so the work is on you.
Since this is your first Android phone .. I don't want you to think this is a problem with the OS or even with Samsung. It's just how things work. Apple allows carrier specific network files to be pushed to iOS where that's not the case with Android. I think maybe backup and stop hacking on things would be a good piece of advice. Take it for what it is. I just would like to prevent another iOS switcher from running around saying Android suck because things didn't go the way they thought would.
Cheers.
aergern said:
I would move this thread to the AT&T specific section. My understanding is that specific drivers are needed to do WiFi calling on AT&T and it's not baked in and the model you bought is not sold in the states whether it's sim unlocked or not. Also, why would you root/jailbreak a phone running an OS that you have no real experience with? If you can't get it to work then I'd return it and either buy the AT&T version outright an have them unlock it for you or go to Best Buy, Amazon or Samsung themselves and buy the single sim unlocked version. You may still have issues with that unlocked version if AT&T's Wifi calling is as locked up as I remember. T-Mobiles wifi calling works with your handset but it also has oddities such as the TMO sim must be in sim slot 1 to work. Because that model is not normally used with U.S. carriers .. they kinda don't give a crap about it so the work is on you.
Since this is your first Android phone .. I don't want you to think this is a problem with the OS or even with Samsung. It's just how things work. Apple allows carrier specific network files to be pushed to iOS where that's not the case with Android. I think maybe backup and stop hacking on things would be a good piece of advice. Take it for what it is. I just would like to prevent another iOS switcher from running around saying Android suck because things didn't go the way they thought would.
Cheers.
Click to expand...
Click to collapse
Ok slow down. I don't think any of that at all regarding saying or
Thinking android sucks nor would I make such a conclusion. Lol. Also couldn't put the thread there, wouldn't let me create a thread over there (said im "too newb")
I'm a LONG time older comp sci major who works for a software company and has been doing consulting for a number of years. All day every day I deal with every software imaginable. It just HAPPENS that this is my first android phone, and Therefore is not that familiar to me yet. The only reason I had an iPhone and idevices (all jailbroken) in the first place was because at the time, my company was locked to Apple mobile devices. I'm actually simultaneously working with piemessage to try and get a VM up and running to allow me to use iMessage on Android
Also I understand their may be some nuisances of screwing with other packages and drivers. I did do the CSC update and that "enabled" at least the menus and the ability to turn the features On. Whether or not it's working, I have no idea. Without a SIN card inserted however, I was able to place a cal using google hangouts dialer without any issue whatsoever, but as that is a different app then the actual phone dialer... I'm not sure if that proves anything. Feel free to correct me if I'm wrong, but making a wifi cal through Hangouts Dialer connected to my google voice number without a SIM card inserted is different than dialing a number using the phone app.
Unfortunately, the only real way for me to test it, is to take the SIM back out of my iPhone, call att again and have them switch the IMEI again. At least google voice wouldn't configure properly until I did that and it took forever to get the call forwarding reset. And my problem is I'm going on a business trip tomorrow and don't have the time to be swapping SIM cards back and forth.
Maybe I'll just put it in letter without calling AT&T and see if it works anyways. Are there any prevalent icons up at the top to indicate it's a wifi call being made vs a cell call?
Sent from my iPhone using Tapatalk
Usaf-lt-g said:
Ok slow down. I don't think any of that at all regarding saying or
Thinking android sucks nor would I make such a conclusion. Lol. I'm a
LONG time older comp sci major who works for a software company and has been doing consulting for a number of years. All day every day I deal with every software imaginable. It just HAPPENS that this is my first android phone, and Therefore is not that familiar to me yet. The only reason I had an iPhone and idevices (all jailbroken) in the first place was because at the time, my company was locked to Apple mobile devices. I'm actually simultaneously working with piemessage to try and get a VM up and running to allow me to use iMessage on Android
Also I understand their may be some nuisances of screwing with other packages and drivers. I did do the CSC update and that "enabled" at least the menus and the ability to turn the features On. Whether or not it's working, I have no idea. Without a SIN card inserted however, I was able to place a cal using google hangouts dialer without any issue whatsoever, but as that is a different app then the actual phone dialer... I'm not sure if that proves anything. Feel free to correct me if I'm wrong, but making a wifi cal through Hangouts Dialer connected to my google voice number without a SIM card inserted is different than dialing a number using the phone app.
Unfortunately, the only real way for me to test it, is to take the SIM back out of my iPhone, call att again and have them switch the IMEI again. At least google voice wouldn't configure properly until I did that and it took forever to get the call forwarding reset. And my problem is I'm going on a business trip tomorrow and don't have the time to be swapping SIM cards back and forth.
Maybe I'll just put it in letter without calling AT&T and see if it works anyways. Are there any prevalent icons up at the top to indicate it's a wifi call being made vs a cell call?
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Yeah, ya never know what folks know.
I've just encountered a lot of folks who are smart techies who have used iPhones for a long time and Android frustrates them and then they freak out. My bad. I apologize.
I still think you need to check the AT&T specific section. I've read that the proper support for AT&T's wifi calling isn't baked into AOSP like T-Mobile has theirs baked in. This could have changed but I don't think so. The other calls ie. Hangouts, Google Voice and Skype aren't controlled by AT&T so I would assume they'd work regardless. The wifi calling registers with AT&T's servers/routers ... what they require for this handshake I'm not entirely sure. I know that when I tried it out using my Nexus 6P it didn't work out of the box but I didn't spend a lot of time on it either.
Ah. I get you about the business trip thing. It's why I bought the unlocked S7E .. I have to swap to often when traveling. I did this after I bought the version you have. I found that 1 sim slot would do LTE/3G/2G and the other was stuck on 2G only and that it would random switch from sim 1 to sim 2 when I was in the States with my personal TMO sim and my work AT&T simcard. It was too irritating so now I just expense the TMO account and gave back the AT&T sim. Not an option for everyone .. I get that.
Also, I did read that AT&T likes to jack folks around on speed when it's not one of their phones and there is a fix involving the EMEI number being changed in your account .. I can't remember where on XDA I found that trick but I'm sure a search will find it for you.
Hope you get it working. The S7E is a nice phone.
Safe travels. Cheers.
hey go check out sac23 rom it is USA att ported note 7 rom. It has wifi calling.
ecg803 said:
hey go check out sac23 rom it is USA att ported note 7 rom. It has wifi calling.
Click to expand...
Click to collapse
Good call. Just loaded it, will test wifi calling.
Sent from my iPhone using Tapatalk
What was your result? I'm in the same boat, thought this model would be useful for business trips. Also need Wi-Fi calling at home, but no dice.

G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working!

G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working!
I posted this over the Tmobile section, but realized it might be a better topic here in the AT&T section...
Sure would like some help from the brilliant minds on this board....
I bought an unlocked G935T a few months ago and have been using it on At&t (with the G935T firmware) for the last few months.
Recently, I needed to use wi-fi calling. Couldn't get it to work on TMo firmware so last night I flashed G935A firmware one it (QF3)
Firmware is working fine - everything seems to be working EXCEPT wi-fi calling. Damn you, AT&T!
I can use one of the free VOIP apps like Google Voice, of course, but when I call out I need to be able to use my cell phone number and really don't want to have to forward calls to GV every time I go into this particular building that doesn't have any cell reception.
Chatting with support this morning, they said it can't be done. I don't understand - if the hardware is the same across all US Variants, then why can't At&t firmware enable this feature? What am I missing??? GRRRRR
You have to run the AT&T firmware to get that feature.
jshamlet said:
You have to run the AT&T firmware to get that feature.
Click to expand...
Click to collapse
I AM running the AT&T firmware.
danoelise said:
I AM running the AT&T firmware.
Click to expand...
Click to collapse
Sorry, I missed that. The next step is to call an actual AT&T rep (at a corporate store) and make sure your SIM is provisioned correctly.
jshamlet said:
Sorry, I missed that. The next step is to call an actual AT&T rep (at a corporate store) and make sure your SIM is provisioned correctly.
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Click to collapse
No worries. I actually went into a store yesterday. He pulled up a few threads on his tablet and basically told me it cannot be done. I have used the "please make sure my sim is provisioned correctly" in my conversations with support online and they always say that you can't provision a sim.
Should I just go in and ask for another sim?
danoelise said:
No worries. I actually went into a store yesterday. He pulled up a few threads on his tablet and basically told me it cannot be done. I have used the "please make sure my sim is provisioned correctly" in my conversations with support online and they always say that you can't provision a sim.
Should I just go in and ask for another sim?
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It's definitely a SIM or account thing. With the A firmware, it is identical to the phones AT&T sells, so this is a bit of AT&T dickery. Keep escalating it with support until you either get it resolved, or give up all hope.
I forgot to mention that they told me it has to do with IMEI. If it's not an AT&T phone, the IMEI isn't in their database, and won't work. I agree- total dickery.
Yeah, unfortunately it's ultimately a carrier feature, and AT&T has chosen to be jerks about it. I can't imagine they really make that much selling handsets, but this isn't the first time they have pulled this sort of stunt. It's almost as if they are jealous of people calling Verizon the evil empire and decided to strike back.
danoelise said:
I forgot to mention that they told me it has to do with IMEI. If it's not an AT&T phone, the IMEI isn't in their database, and won't work. I agree- total dickery.
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You have to call ATT and give them the IMEI from any ATT device and that will unlock the wifi calling. Has to be an official ATT device.
Sent from my SM-G955U1 using XDA-Developers Legacy app

Did I make a mistake getting the "UNLOCKED" version from samsung.com? I use AT&T and

Did I make a mistake getting the "UNLOCKED" version from samsung.com? I use AT&T and
I use ATT and verizon.. and i noticed when the phone restart it doesnt add the bootloader for either carriers which also noticed no wifi calling .. and voice over data with ATT is trash for some reason .. when i hung up the phone my data just goes completely away then comes back as "LTE+" ,,, this is sad.. my last year S9+ when i put ANY sim card in it, it restarts the phone and loads the correct "bootloader" for the correct carrier with all features such as wifi calling/voice over data. etc etc... thats my first ordering a true unlocked samsung phone from the mother company. am i doing something wrong where i missed something in the setting? i looked also for OEM option under developer options, its not there .
some advice would be greatly appreciated .. yes i dont mind the extra carrier stuff when i put sim for verizon or att .
i got the S10+ 1TB version.
iKenta said:
I use ATT and verizon.. and i noticed when the phone restart it doesnt add the bootloader for either carriers which also noticed no wifi calling .. and voice over data with ATT is trash for some reason .. when i hung up the phone my data just goes completely away then comes back as "LTE+" ,,, this is sad.. my last year S9+ when i put ANY sim card in it, it restarts the phone and loads the correct "bootloader" for the correct carrier with all features such as wifi calling/voice over data. etc etc... thats my first ordering a true unlocked samsung phone from the mother company. am i doing something wrong where i missed something in the setting? i looked also for OEM option under developer options, its not there .
some advice would be greatly appreciated .. yes i dont mind the extra carrier stuff when i put sim for verizon or att .
i got the S10+ 1TB version.
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The BYOD firmware isn't available for the S10 yet but when it is I'm pretty sure you will have to flash the carrier U firmware to take advantage of that when it's available. For now I think you have to flash each carrier separately to get their features because a simple sim swap dosen't do it. The U1 firmware witch the unlocked version from Samsung has shouldn't get the carrier bloat otherwise that would make it just like the carriers versions witch would defeat the purpose of purchasing the unlocked from Samsung. I have two unlocked Note8's from Samsung here and they don't have any carrier bloat like the Verizon U versions and what not.
I had the unlocked Samsung S8+ directly from Samsung and my only complaint was all the carriers would receive the updates before I did.
Sent from my Pixel C using Tapatalk
anyone got a direct link where i can be guided how to install a ATT firmware then? that'll be better for me i believe
I got an unlocked version of the s10 plus and thought I made the mistake also. I seem to be getting everything my tmobile s8 plus did like wifi calling and hotspot. I believe I can even surface the web while on the phone like I could do before switching. The unlocked version just doesnt have the boot splash screen that I hated. I think I will try and buy unlocked from now on
---------- Post added at 09:45 PM ---------- Previous post was at 09:43 PM ----------
iKenta said:
anyone got a direct link where i can be guided how to install a ATT firmware then? that'll be better for me i believe
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You should be able to return your phone for a carrier through Samsung or sell it. Someone would rather have an unlocked version compared to a carrier version. One just sold on Ebay today for 1,000. Hell I was thinking about selling mine and getting another one from Samsung
Sonin66 said:
. I believe I can even surface the web while on the phone like I could do before switching. The unlocked version just doesnt have the boot splash screen that I hated. I think I will try and buy unlocked from now on
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Tmobile carried simultaneous voice+data forever. It's standard for GSM networks with 3G or greater. Even the 1st android phone could do it. So you must've used Sprint before, where they gained that feature recently.
Unlocked models receive OS updates last, but seem to get consistent security patches.
Ace42 said:
Tmobile carried simultaneous voice+data forever. It's standard for GSM networks with 3G or greater. Even the 1st android phone could do it. So you must've used Sprint before, where they gained that feature recently.
Unlocked models receive OS updates last, but seem to get consistent security patches.
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Lol that's funny cause I actually did, blew my mind the first time i used it. Still find it amazing

Flash AT&T on a T-Mobile S10+

If I buy used T-Mobile can I Flash AT&T firmware on it so I will have AT&T Enhanced Messaging and Wifi Calling Just as if it was an ATT phone????? Thanks
If the phone is network unlocked in theory the sim it sees when you first boot from setup it should then download all the carrier software and features. There is only one carrier U firmware so there isn't specific AT&T, T-Mobile. Now if AT&T tracks their IMEI's that were meant to be on their network then that may be where this all falls apart and some features may not come over then.
At least that is how it has worked in the past. Someone else feel free to correct me if I am wrong.
Sent from my SM-G975U using Tapatalk
tailgunner9 said:
If I buy used T-Mobile can I Flash AT&T firmware on it so I will have AT&T Enhanced Messaging and Wifi Calling Just as if it was an ATT phone????? Thanks
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I saw a report on the forums here where someone flashed the att userdata and wiped and all of the carrier features worked.
I know on the 9/9+, even with the BOYD firmware, or flashing att bloat would not make a NON-ATT purchased device have advanced messaging /wifi calling / VoLTE. The trick was to activate that stuff on an att branded phone and then swap the sim.
It was very much a YMMV.
Similar issue here. My problem is i bought a s10 plus AT&T and it was supposed to be unlocked, however it wasn't the case. Mine is still AT&T locked and when i called them about my issue they said i would have to get service with them for a few months then i could end the service by paying the cancellation fee. I could then unlock the device. They also told me that my phone has an unpaid balance that would have to be paid prior to starting service. I have tried to contact the seller but to no avail. Anyways, my question is can I flash T-Mobile stock firmware to this phone and use it on T-Mobile?

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