Unlucky with Carrier Options on AT&T in USA after flashing. - Samsung Galaxy S9 Questions & Answers

NOOB / FNG here and my brain is fried. I have purchased at Best Buy an unlocked GS9 SM-G960U1. I have flashed with ODIN and AT&T firmware. I get the ATT bloatware and welcome screen but no IMS Features, VOLTE, WiFi Calling etc.
I have tried different versions of the AT&T FW with same results.
My AT&T SIM card is 2 years old and out of my ATT Unlocked GS7, which has all working IMS features.
Forgive me if this is a repost. I have read and studied and cannot figure where I went wrong.
Thank you in advance for more of your wisdom here. It is much appereciated!!!

When you flashed the AT&T firmware did you have your sim card in the phone? The other thing you can do is have At&t hard set your Galaxy S7 IMEI in their system(put the sim card back in your s7 and call AT&T and say your hd voice and wifi calling isn't working, and they will ask for the IMEI).

BigQuark said:
NOOB / FNG here and my brain is fried. I have purchased at Best Buy an unlocked GS9 SM-G960U1. I have flashed with ODIN and AT&T firmware. I get the ATT bloatware and welcome screen but no IMS Features, VOLTE, WiFi Calling etc.
I have tried different versions of the AT&T FW with same results.
My AT&T SIM card is 2 years old and out of my ATT Unlocked GS7, which has all working IMS features.
Forgive me if this is a repost. I have read and studied and cannot figure where I went wrong.
Thank you in advance for more of your wisdom here. It is much appereciated!!!
Click to expand...
Click to collapse
How long has it been? It sometimes takes a few days for some features to show, especially from T. I'm guessing you power cycled your phone with the Sim card in it also.

Tel864 said:
How long has it been? It sometimes takes a few days for some features to show, especially from T. I'm guessing you power cycled your phone with the Sim card in it also.
Click to expand...
Click to collapse
Yes, I flashed the phone with the AT&T SIM card inside the phone. I called AT&T and spoke to a rep who wanted to help and put in a ticket for me but he was told no and that I had to flash the FW on my phone.
Rebooted and waited several days, IMS setting still greyed out in the *#*#4636#*#* dialer.

BigQuark said:
Yes, I flashed the phone with the AT&T SIM card inside the phone. I called AT&T and spoke to a rep who wanted to help and put in a ticket for me but he was told no and that I had to flash the FW on my phone.
Rebooted and waited several days, IMS setting still greyed out in the *#*#4636#*#* dialer.
Click to expand...
Click to collapse
Did you call while the sim was in the S7? Do your settings look like the attached?

Yep, I can call out on WiFi Calling with my S7. Works great.
And those wifi options I do have on my S7.
Sent from my SM-G960U using Tapatalk

BigQuark said:
Yep, I can call out on WiFi Calling with my S7. Works great.
And those wifi options I do have on my S7.
Sent from my SM-G960U using Tapatalk
Click to expand...
Click to collapse
So this is the mobile carriers working end users over.
According to Android and Google the idea behind Preferred Carrier Options and Unlocked handsets was to be that each carrier would have an App that the end user could down load to use these IMS features on their unlocked hand set.
To date, no carrier in the USA does this. So why lock it down?
The idea was not to do what AT&T is doing.

Also, the second I remove my AT&T SIM card and insert my MINT SIM card my IMS settings become available to select/unselect.....
BigQuark said:
Yep, I can call out on WiFi Calling with my S7. Works great.
And those wifi options I do have on my S7.
Sent from my SM-G960U using Tapatalk
Click to expand...
Click to collapse
Sent from my SM-G960U using Tapatalk

Related

Can't get my Verizon Note 4 (n910v) on T-Mobile. No service.

Hello everyone,
I was using the Verizon note 4 on tmobile until I got the 5.0.1 lollipop update. Now it won't register on tmobile at all, and there is an "x" next to the signal meter, indicating that it isn't getting any service. I triple checked my apn settingssettings, network modes, restarting. Nothing works. Did the lollipop update simlock the phone?
Anything is possible culprit..I would take out the battery and make sure the Sim card is inserted properly..and if that doesn't work do a factory reset..
Sent from my SM-N910V using Tapatalk
Getting TMobile 4G_LTE Working Again
Hi,
I had the same issue with my Galaxy Note 4 (SM-N910V) edition. I needed to go back in and add the APN for TMobile US LTE, then all was well. I have included snap shots of mine for reference. Also, make sure you set your "Network" to Global.
Best of Luck
Jonathan
kev510 said:
Hello everyone,
I was using the Verizon note 4 on tmobile until I got the 5.0.1 lollipop update. Now it won't register on tmobile at all, and there is an "x" next to the signal meter, indicating that it isn't getting any service. I triple checked my apn settingssettings, network modes, restarting. Nothing works. Did the lollipop update simlock the phone?
Click to expand...
Click to collapse
I have this problem too.. Tried all different apn settings.
I'm having the same issue. I even downgraded to kitkat but nothing.
What is the advavtage of using Tmobile?Do you still have a Verizon acct.
doubledragon5 said:
What is the advavtage of using Tmobile?Do you still have a Verizon acct.
Click to expand...
Click to collapse
In my situation, I'm a tmobile user but had the chance to get a verizon note 4 at a cheaper price. At this rate though, I may just sell it and get a tmobile version.
Has anyone figured out the issue?
I got another N910V with 5.0.1 today, it has the same problem (not being able to use other carriers' sim cards). I'm pretty sure the 5.0.1 locks the phone. WTF Verizon??
Sorry you're having that issue. I bought a Verizon Note 4 on swappa the other day that already had 5.0.1 and Build ID ending in BOAF. I was able to get signal on it, no problem. Downgraded to 4.4.4 and service was still available. Have your SIM card replaced at a Tmobile Store to see if that resolves the issue. I'm curious as to your APN settings and whatnot.
kev510 said:
I got another N910V with 5.0.1 today, it has the same problem (not being able to use other carriers' sim cards). I'm pretty sure the 5.0.1 locks the phone. WTF Verizon??
Click to expand...
Click to collapse
Honestly I don't think they did that .. I tested many sim cards and it works all the time.. try maybe new sim?
I have a verizon note 4 and a T-Mobile one too which i bought because of not 100% reception.. My friend updated to lollipop he has verizon note 4 service is working perfectly , try keeping the network mode at lte cdma for little while and then go back to global , or try an at&t sim card in it .. if your phone just got bad esn T-Mobile will not work on it too as T-Mobile do not let any bad esn phone run on their network .. i am 100% sure lollipop has nothing to do with it
Sent from my SM-N910T using XDA Free mobile app
Well I can't say for sure either, but there are too many people having the same issue (no service on tmobile after upgrading to 5.0.1) to deny that 5.0.1 has anything to do with the problem. Also, the ones that are saying lollipop has nothing to do with sim lock, can you guys check if you're using 5.0 or 5.0.1? The ones that are saying that they stopped being able to use the N910V on tmobile are all on 5.0.1.
EDIT: If you're on lollipop + tmobile on a n910v, can you tell me if you're using the new ISIS sim card?
salman1444 said:
I have a verizon note 4 and a T-Mobile one too which i bought because of not 100% reception.. My friend updated to lollipop he has verizon note 4 service is working perfectly , try keeping the network mode at lte cdma for little while and then go back to global , or try an at&t sim card in it .. if your phone just got bad esn T-Mobile will not work on it too as T-Mobile do not let any bad esn phone run on their network .. i am 100% sure lollipop has nothing to do with it
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
trouble with note 4 mobile hotspot
Need help, when my verizon note 4 was root, I was able to turn on xposed tether for mobile hotspot. I was able to connect other devices to it, but had limited connectivity meaning no internet. I tried everything but had no idea. I almost want to give up note 4 even love it. Is it because xposed tether does not work on note 4? I have same issue with foxi. Is sqlite editor better, can someone help me with setting for sqlite for Verizom note 4 to try? Thank you
Has anybody been able to get it to work on metropcs? I get an x next to the signal bars. I used the fast.metropcs.com apn and i tried with the 3 network modes ... I was able to get it to work on tmobile but not metro
Found solution.
For those having issues with not service when changing SimCards after 5.0x.
The solution is http://forum.xda-developers.com/android/software/debloater-remove-carrier-bloat-t2998294
Just disable Verizon activation (VzwActivationAgent apk) app. NO ROOT NEEDED
I also disabled some Knox services that where already pre-marked.
Now I have service with T-mobile Sim and don't have the annoying "unkown sim" message.
The tool is created by @gatesjunior so, show your appreciation on his thread.
I followed the instructions and also disabled "VzWActivationAgent.apk", still unable to get TMobile sim to work. Any other suggestions? Thanks in advance.
GUGUITOMTG4 said:
For those having issues with not service when changing SimCards after 5.0x.
The solution is http://forum.xda-developers.com/android/software/debloater-remove-carrier-bloat-t2998294
Just disable Verizon activation (VzwActivationAgent apk) app. NO ROOT NEEDED
I also disabled some Knox services that where already pre-marked.
Now I have service with T-mobile Sim and don't have the annoying "unkown sim" message.
The tool is created by @gatesjunior so, show your appreciation on his thread.
Click to expand...
Click to collapse
pmronline said:
I followed the instructions and also disabled "VzWActivationAgent.apk", still unable to get TMobile sim to work. Any other suggestions? Thanks in advance.
Click to expand...
Click to collapse
You were using it on Verizon or you just bought it?
@GUGUITOMTG4 it was bought newly.
GUGUITOMTG4 said:
You were using it on Verizon or you just bought it?
Click to expand...
Click to collapse
pmronline said:
@GUGUITOMTG4 it was bought newly.
Click to expand...
Click to collapse
But from Verizon or where? just asking since there could be chances that imei is blacklisted.

Verizon Note 8 on Cricket - Has anyone done this?

I bought a Verizon Note 8 which are factory unlocked and simply put my cricket sim inside and changed the APN settings to what the Cricket website recommends. However I'm have issues getting LTE Service and voice quality in general.
Has anyone every encountered this with the new galaxy devices on cricket? Should I look to flash the unlocked or ATT firmware to fix this?
Thanks in advance!
furrry said:
I bought a Verizon Note 8 which are factory unlocked and simply put my cricket sim inside and changed the APN settings to what the Cricket website recommends. However I'm have issues getting LTE Service and voice quality in general.
Has anyone every encountered this with the new galaxy devices on cricket? Should I look to flash the unlocked or ATT firmware to fix this?
Thanks in advance!
Click to expand...
Click to collapse
I would try the unlocked firmware and do a factory reset.
Sent from my SM-N950U1 using Tapatalk
It works amazingly better service than Verizon but Verizon's support is on point I give them that
Ryan.Feezel said:
It works amazingly better service than Verizon but Verizon's support is on point I give them that
Click to expand...
Click to collapse
Oh really? Can you share your settings on the phone and APN? Thx
furrry said:
Oh really? Can you share your settings on the phone and APN? Thx
Click to expand...
Click to collapse
Ya it runs off cricket itself but if u keep it on global or lte/cdma it runs on att network but literally 4g everywhere and amazing data deals
The first set is cticket
Ryan.Feezel said:
Ya it runs off cricket itself but if u keep it on global or lte/cdma it runs on att network but literally 4g everywhere and amazing data deals
The first set is cticket
Click to expand...
Click to collapse
Ok thanks, it may just be my current location but I cant seem to get higher than H+ data
Yep i just use the hidden settings app to get 49
thecarp1975 said:
I would try the unlocked firmware and do a factory reset.
Sent from my SM-N950U1 using Tapatalk
Click to expand...
Click to collapse
I just bought a Verizon Note 8 off craigslist. Works fine w/ my Cricket service. Didn't have to fiddle w/ APN settings either. I got LTE. I don't like the stock Verizon ROM however, I'm gonna put either the SM-N950U1 stock rom or a custom ROM.
furrry said:
I bought a Verizon Note 8 which are factory unlocked and simply put my cricket sim inside and changed the APN settings to what the Cricket website recommends. However I'm have issues getting LTE Service and voice quality in general.
Has anyone every encountered this with the new galaxy devices on cricket? Should I look to flash the unlocked or ATT firmware to fix this?
Thanks in advance!
Click to expand...
Click to collapse
Will a Verizon Note 8 work if you put a SIM card from cricket in?
I used a Verizon s8 plus on at&t for months. Flashed the unlocked firmware and had zero problems
I realize this is an old thread, but I also have a VZW Note8 being used on the Cricket network. I flashed the U1 firmware, which workds great, but calls are handled over H+, data over LTE. Cricket/AT&T is sunsetting their 3G network beginning 2020, so this will cause issues with my calls. Does anyone know, is there a firmware I can flash to enable VoLTE over the Cricket network?
Verizon Note 8 running on Cricket
Cricket wireless ran smoothly and fast, but I don't like Verizon bloatware. Flashed it with a SM-N950U1 bloatware free and reinstalled Cricket sim card and no problems, but one a cracked screen that still works.:good:
Yup it works
only problem is update to pie made free wifi tethering go away. Haven't figured out how to get it back yet. My LTE and voice work fine, also my APN settings happened automatically. Maybe delete the APN you created and let it do what it does. I'm so not an expert, but mine works fine.
furrry said:
I bought a Verizon Note 8 which are factory unlocked and simply put my cricket sim inside and changed the APN settings to what the Cricket website recommends. However I'm have issues getting LTE Service and voice quality in general.
Has anyone every encountered this with the new galaxy devices on cricket? Should I look to flash the unlocked or ATT firmware to fix this?
Thanks in advance!
Click to expand...
Click to collapse
aaarggghhhateusernames said:
only problem is update to pie made free wifi tethering go away. Haven't figured out how to get it back yet. My LTE and voice work fine, also my APN settings happened automatically. Maybe delete the APN you created and let it do what it does. I'm so not an expert, but mine works fine.
Click to expand...
Click to collapse
I had Verizon Nougat on my Note8 originally... Using it on Cricket. I switched it to the unlocked carrier Oreo ROM several months ago. Wifi tethering worked. I upgraded to Pie last night using Smart Switch on my PC. It upgraded my Note8 to the unlocked carrier Pie ROM. Wifi tethering still working for me.
Sent from my Motorola DynaTAC 8000X using Tapatalk

Note 10+ unlocked Tmobile issues

Just got my note 10+ and I'm absolutely loving the phone, but the service on the unlocked phone isn't to good. First off when i make a phone call it doesn't stick to LTE it goes to H+. When i hang up the phone it takes forever to switch back to LTE. What's the issue? Maybe because I transferred my data from my note 9?
What else are you seeing besides the lte any issues with wifi calling/volte/video calling/visual voice mail?
antawnm26 said:
What else are you seeing besides the lte any issues with wifi calling/volte/video calling/visual voice mail?
Click to expand...
Click to collapse
Wifi calling works. I have really never used visual voicemail. Volte is the biggest issue for me. Video calling doesn't work since it doesn't have the t mobile firmwire on it. I will give it 24 hours for the SIM card to be fully configured if not, I will be flashing the tmobile firmwire
HTML:
dia_naji said:
Wifi calling works. I have really never used visual voicemail. Volte is the biggest issue for me. Video calling doesn't work since it doesn't have the t mobile firmwire on it. I will give it 24 hours for the SIM card to be fully configured if not, I will be flashing the tmobile firmwire
Click to expand...
Click to collapse
was your sim in the device on the first start up?
antawnm26 said:
HTML:
was your sim in the device on the first start up?
Click to expand...
Click to collapse
It wasn't. I transferred everything from my note 9, made some configurations then inserted my sim
dia_naji said:
It wasn't. I transferred everything from my note 9, made some configurations then inserted my sim
Click to expand...
Click to collapse
Did you get a configuration message? If not, ask TMobile to send one?
I have the unlocked version on T-mobile also. I got the config message, it rebooted. WiFi calling does not work (test with airplane mode on then toggle wifi back on with wifi calling enabled). There is not VoLTE on the unlocked model.
cliffr39 said:
I have the unlocked version on T-mobile also. I got the config message, it rebooted. WiFi calling does not work (test with airplane mode on then toggle wifi back on with wifi calling enabled). There is not VoLTE on the unlocked model.
Click to expand...
Click to collapse
getting conflicting stories the things you say aren't working others are saying they do work
dia_naji said:
Just got my note 10+ and I'm absolutely loving the phone, but the service on the unlocked phone isn't to good. First off when i make a phone call it doesn't stick to LTE it goes to H+. When i hang up the phone it takes forever to switch back to LTE. What's the issue? Maybe because I transferred my data from my note 9?
Click to expand...
Click to collapse
I'm using the unlocked model on T-Mo. WiFi calling and VoLTE work fine.
Only thing I noticed was the data speed seems slower. I have two lines, so I tested them side by side
I had my Note 9 (running T-Mo firmware) in one hand, and my Unlocked Note 10+ running the factory unbranded firmware in the other hand. The Note 9 was pulling 80 Mbps and the Note 10+ was pulling 60 Mbps.
Easiest way is to install t-mobile firmware on unlocked version to enjoy all the benefits along with faster carrier updates https://www.sammobile.com/sams...ote-10-plus/firmware/SM-N975U/
Sent from my SM-N975U using Tapatalk
Mr. Orange 645 said:
I'm using the unlocked model on T-Mo. WiFi calling and VoLTE work fine.
Only thing I noticed was the data speed seems slower. I have two lines, so I tested them side by side
I had my Note 9 (running T-Mo firmware) in one hand, and my Unlocked Note 10+ running the factory unbranded firmware in the other hand. The Note 9 was pulling 80 Mbps and the Note 10+ was pulling 60 Mbps.
Click to expand...
Click to collapse
I factory reset my phone and everything seems to work fine. VoLte and wificalling both work. I have noticed the speed test on my tmobile branded note 9 was higher. I wonder if I flash the tmobile firmwire if i would get better service
chowdarygm said:
Easiest way is to install t-mobile firmware on unlocked version to enjoy all the benefits along with faster carrier updates https://www.sammobile.com/sams...ote-10-plus/firmware/SM-N975U/
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
Stupid question, but will it SIM lock the phone?
https://techcrunch.com/2019/08/21/t-mobile-outage/
Possible due yo the tmobile outage
cliffr39 said:
I have the unlocked version on T-mobile also. I got the config message, it rebooted. WiFi calling does not work (test with airplane mode on then toggle wifi back on with wifi calling enabled). There is not VoLTE on the unlocked model.
Click to expand...
Click to collapse
Update. After about 2 hours the wifi calling and volte now work. Very happy
dia_naji said:
I factory reset my phone and everything seems to work fine. VoLte and wificalling both work. I have noticed the speed test on my tmobile branded note 9 was higher. I wonder if I flash the tmobile firmwire if i would get better service
Click to expand...
Click to collapse
If you decide to flash T-Mo firmware let me know what you find. I'm not sure I want to go through set up again just yet, LOL.
T-Mobile was having some network issues tonight they are working to fix.
dia_naji said:
Stupid question, but will it SIM lock the phone?
Click to expand...
Click to collapse
No, it shouldn't. You are only flashing the firmware.
Sent from my SM-N975U using Tapatalk
chowdarygm said:
No, it shouldn't. You are only flashing the firmware.
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
Have you flashed the the tmobile firmwire? Just don't want to end up with a brick lol
This where i download the firmwire https://samfrew.com/download/Galaxy__Note10+__256GB__/c3pb/TMB/N975USQU1ASGO/N975UOYN1ASGO/
dia_naji said:
Have you flashed the the tmobile firmwire? Just don't want to end up with a brick lol
This where i download the firmwire https://samfrew.com/download/Galaxy__Note10+__256GB__/c3pb/TMB/N975USQU1ASGO/N975UOYN1ASGO/
Click to expand...
Click to collapse
Yes I flashed the t-mobile firmware but from sammobile https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U/
Everything has been running great till now. Do it only if you have experience with it and know what you are doing.
Sent from my SM-N975U using Tapatalk
dia_naji said:
Have you flashed the the tmobile firmwire? Just don't want to end up with a brick lol
This where i download the firmwire https://samfrew.com/download/Galaxy__Note10+__256GB__/c3pb/TMB/N975USQU1ASGO/N975UOYN1ASGO/
Click to expand...
Click to collapse
Flashing carrier firmware will NOT sim lock it. I know that 100%.

Samsung GalaxyNote 10+ and AT&T problems only 3G phone calls and data

we have 3 Note 10+ my son ordered his the day of the preorder release. he has the 256 version and my wife and i got the 512 version.
Upon my wife and I getting the phones we replaced the sim chips with new ones from AT&T instead of removing the ones in our Pixel 3xl. I noticed that AT&T Visual voice mail wasn't there but after loging into our voice mail account it downloaded a different visual voice mail program.
however we are having signal problems, I noticed that we didn't Get Voice over WIFI, Advanced Messaging, Volte etc. I called into support 611 and explained and they said that they would re-register our phones to turn them off for a few min and back on and should be ok.
That didn't' accomplish anything. I talked with an engineer that I know that works for AT&T and he said that my son's phone is provisioned for VOLTE with torch i think but not in the account screen. My wife and my devices are not provisioned for VOLTE HOWEVER NONE of our phones are connecting for voice or data to 4G LTE only 3G. He didn't know why but would check further.
after complaining to OOP with Samsung and being within the return window they said that we could order from them the branded AT&T phones and return our unlocked phones.
I realize that we will get stuck with the bloatware, but if we are getting 4G LTE VOLTE etc. maybe that is what should be done.
If we do that can we still get them unlocked and what do we loose by doing this? I appreciate the work everyone is doing here and I think hopefully I can get an honest answer vs everyone pointing the finger at everyone else.
My big concerns are:
If I keep these what do we loose?
How bad is the bloat ware?
If we change to T Mobile or others later can we, or if we travel, get AT&T to unlock the phones
If I keep these phones and flash the AT&T files will we:
Then get access to the programs and services we don't have now?
Get over the air updates as they are released?
I would highly appreciate any advice
Thank you for everyone's help in advance
I was getting horrible battery usage on my At&t branded Note 10+. What I did was flash the U1 unlocked firmware, set things up, made a few calls, sent a few text so things provisioned to At&t. I then flashed At&t csc with odin and this gave me 4GLte..wifi calling..video calling..advanced messaging..and volte
Sent from my SM-N975U1 using Tapatalk
but your phone was branded AT&T right so theIMEI number is active in their system
I had the same issue - thankfully, I was able to test a friend's SIM card from AT&T and his worked! I saw an obscure reference (see below) to it being an issue with older SIM cards. I'm heading to AT&T store to replace mine tonight.
https://forums.att.com/t5/Apple/Cellular-data-not-working/td-p/5731162
tommyloui said:
but your phone was branded AT&T right so theIMEI number is active in their system
Click to expand...
Click to collapse
Yes it is At&t branded.
Sent from my SM-N960U using Tapatalk

Supplementary services not working on N975F/DS with AT&T

Hey so I am having an issue where the Supplementary Services on my N975F/DS are not working with AT&T but seems to work fine with a T-Mobile SIM. Whenever I try to open Supplementary Services with my AT&T SIM inserted it gives me an error "Failed to read data. Something went wrong. Check your SIM card or network connection, then try again."
I have already tried the following:
Replaced my AT&T SIM card twice
Reset Network settings
Spoke with multiple AT&T representatives who allegedly changed some stuff on the "backend" to fix it but in reality it did nothing.
I am on Android 10 running Dr.Ketan rom Q07. Only have 1 SIM card inserted, the other slot has my MicroSD card.
So any ideas on what I could try to get this fixed?
Thanks!
This isn't the answer you want but change carriers. I have the same device and AT&T didn't play nicely with it. Slow data and no wifi calling. I switched to TMobile (and mint for a cheap second line) and it works perfectly.
sansnil said:
This isn't the answer you want but change carriers. I have the same device and AT&T didn't play nicely with it. Slow data and no wifi calling. I switched to TMobile (and mint for a cheap second line) and it works perfectly.
Click to expand...
Click to collapse
I've thought about it for a while now, just didn't want to pull the trigger since I have everything with AT&T (been with them since they were CIngular/Pac-Bell). How's the coverage and signal strength compared to AT&T? Any downsides/issues after switching?
eL_MeXiCaNo said:
I've thought about it for a while now, just didn't want to pull the trigger since I have everything with AT&T (been with them since they were CIngular/Pac-Bell). How's the coverage and signal strength compared to AT&T? Any downsides/issues after switching?
Click to expand...
Click to collapse
That's a good question. I was an AT&T customer for 10+ years before bailing and I had some concerns about T-Mobile's coverage and network but I was pleasantly surprised their coverage was right there with AT&T and the Verizon phone I use for work. Coverage probably varies for everyone based on where they live but I've been using T-Mobile for almost a year and no regrets. It's a nice perk getting Netflix for $2 a month and they support RCS for text and Wifi calling. Btw, I don't work for T-Mobile or even own stock, just sharing my experience with them.
sansnil said:
This isn't the answer you want but change carriers. I have the same device and AT&T didn't play nicely with it. Slow data and no wifi calling. I switched to TMobile (and mint for a cheap second line) and it works perfectly.
Click to expand...
Click to collapse
sansnil said:
That's a good question. I was an AT&T customer for 10+ years before bailing and I had some concerns about T-Mobile's coverage and network but I was pleasantly surprised their coverage was right there with AT&T and the Verizon phone I use for work. Coverage probably varies for everyone based on where they live but I've been using T-Mobile for almost a year and no regrets. It's a nice perk getting Netflix for $2 a month and they support RCS for text and Wifi calling. Btw, I don't work for T-Mobile or even own stock, just sharing my experience with them.
Click to expand...
Click to collapse
You don't own stock? Well too bad, I'm sure my extra $50 a month would of made you a billionaire :laugh: xD
But yeah after extensive troubleshooting with multiple AT&T reps, replacing my SIM card multiple times and even trying my sisters AT&T SIM with the same error it is official that AT&T does not like non-AT&T phones. I got a prepaid T-Mobile SIM and popped it in to try it our for a month and boom Supplementary services works like a charm with it. So looks like I have to live with it until I decide to pull the trigger and switch to T-Mobile.
For everyone else who stumbles into this thread via google, you will get nowhere really with AT&T reps, nothing they do will fix this as it is an issue with AT&T itself and not the phone. So if you want to use call forwarding you will need to reach out to AT&T directly and have them set it up as not even MMI codes work... or just switch to T-Mobile. Hopefully AT&T does some backend changes to fix this and get it working but not holding my breath.
eL_MeXiCaNo said:
You don't own stock? Well too bad, I'm sure my extra $50 a month would of made you a billionaire :laugh: xD
But yeah after extensive troubleshooting with multiple AT&T reps, replacing my SIM card multiple times and even trying my sisters AT&T SIM with the same error it is official that AT&T does not like non-AT&T phones. I got a prepaid T-Mobile SIM and popped it in to try it our for a month and boom Supplementary services works like a charm with it. So looks like I have to live with it until I decide to pull the trigger and switch to T-Mobile.
For everyone else who stumbles into this thread via google, you will get nowhere really with AT&T reps, nothing they do will fix this as it is an issue with AT&T itself and not the phone. So if you want to use call forwarding you will need to reach out to AT&T directly and have them set it up as not even MMI codes work... or just switch to T-Mobile. Hopefully AT&T does some backend changes to fix this and get it working but not holding my breath.
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can you get ATT VoLTE working with N975F? If yes, how?

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