Looking for android users to provide APN info. - Samsung Galaxy Note 8 Questions and Answers

In effort to use the Spectrum Mobile carrier on my samsung SM-N950U1, I picked up a sim using the IMEI of a "compatible" iphone I had laying around. I am not a fan of the Iphone and want to use this sim in my note as opposed to spending too much money on the note 9 through the Spectrum site. I know the network bands that Verizon use are compatible with this version of the note. When inserting the sim in the note after having activated it on the Iphone, it shows I have signal but does not allow and data services. It also does not show as registered on any network for longer then a few seconds.
Through settings using an APN I captured from the Iphone (APN settings blocked through traditional routes so I have limited information) I found two APNs Charterrslrvzwentp and vzwadmin . having ported both to my note, I get the flash of registered on Spectrum then nothing.
I am looking for a note 9 user on spectrum mobile or any user that can pull their full APN info and share it here. Hopefully that's all I need to get this device working on their network. I know they plan on expanding older devices to their network but I do not know when.
Thank you for the help.

Related

Steps to get the Note fully functional on AT&T network?

Hello everyone! I just took the plunge and ordered my Note from Amazon. I am a former Dell Streak/DJSteve user who has been forced to use the Samsung Infuse with MIUI for the past 6 months and I could NOT be happier about the Note.
When it arrives tomorrow, what are the steps I should take to ensure maximum compatibility with AT&T's network/speeds? What configurations settings should I modify? Lets start an AT&T optimization thread .
I anticipate rooting the device as soon as I turn it on - any suggestions for a custom ROM/Radio while you are at it?
Thank you all in advance for the tips AT&T users!
I'm another refugee from the Dell Streak 5, for which DJ Steve could do only so much. You'll like the Note much better.
I can't comment on rooting. Let me start the ball rollling on getting you going on AT&T.
I popped into my Note the SIM I was using on my Streak. Others can correct me if I'm wrong, but you don't need a special "4G SIM" since the Note is not an LTE phone.
Next relates to your plan. Your post doesn't say what it is. I'm on a metered 4G Smartphone plan. Others have grandfathered unlimited plans. In any event, you need a compatible plan. The one you had for the Streak (assuming it was on AT&T) should work.
Third is the APN. There are a ton of posts in this forum on this issue. The wap.cingular APN works fine (if you can't find configuration I can point you to a link) but it is only 3G. You want the phone APN for HSPA+. But ... you need to be properly provisioned for that APN. Just having the SIM and the plan aren't enough.
if you call customer service, when they look up your IMEI, you won't be provisioned for the phone APN, just wap.cingular. (You can tell by the SOC for your data plan but that is a whole another discussion). Call tech support, nicely explain the situation. You'll need to give them an IMEI from an AT&T 4G phone. I used the IMEI for the Infuse (easily findable through a Google search). The tech then could provision me for the phone APN (if you can't find configuration I can point you to a link). I wrote here about this experience on my blog, and the AT&T tech even responded with a comment!
Hope this helps.
GenghisKhent said:
Third is the APN. There are a ton of posts in this forum on this issue. The wap.cingular APN works fine (if you can't find configuration I can point you to a link) but it is only 3G. You want the phone APN for HSPA+. But ... you need to be properly provisioned for that APN. Just having the SIM and the plan aren't enough.
Click to expand...
Click to collapse
If you're grandfathered into an unlimited plan, stick with the wap.cingular apn. The newer apn's are regulated much more closely. You'll still get HSPA+, but your speeds probably won't go much higher than about 6mbit at best, which is more than enough for most things really.
The other thing to do is disable fast dormancy. From the dialer, enter in *#*#9900#*#* and disable fast dormancy.
Jade Eyed Wolf said:
If you're grandfathered into an unlimited plan, stick with the wap.cingular apn. The newer apn's are regulated much more closely. You'll still get HSPA+, but your speeds probably won't go much higher than about 6mbit at best, which is more than enough for most things really.
Click to expand...
Click to collapse
If you are metered rather than unlimited (can't tell from your post) I would think regulation would be a non-issue as you pay through the nose if you go over your limit. Also, I believe that theoretically the phone APN has a higher HSPA+ limit than the wap.cingular APN. Nevertheless, in practice my experience so far (in the Los Angeles area) is that the phone APN and the wap.cingular APN have similar speeds. So even if you are metered, you might want to skip going through the bother of provisioning to the phone APN as long as your speed is OK for your purposes on wap.cingular.
Jade Eyed Wolf said:
The other thing to do is disable fast dormancy. From the dialer, enter in *#*#9900#*#* and disable fast dormancy.
Click to expand...
Click to collapse
Definitely good advice. I forgot that one.
I'm on grandfathered data and have never noticed speed differences between the APN settings floating around on the net. It's not a 4G phone, so at max, any APN will give HSDPA+ (i.e. fake 4G) speeds any way you slice it.
I'm just using wap.cingular and it works well enough.
ericshmerick was the guy who got AT&T to recognize the GTN-7000 as a phone so we could have voice + data. When I called AT&T yesterday and gave them my Note's IMEI, they knew it was a phone, not a tablet. We all owe ericshmerick a lot of thanks, since now all we have to do is pick and choose among APNs, as opposed to dealing with AT&T trying to kick us off the voice network.
GenghisKhent said:
ericshmerick was the guy who got AT&T to recognize the GTN-7000 as a phone so we could have voice + data. When I called AT&T yesterday and gave them my Note's IMEI, they knew it was a phone, not a tablet. We all owe ericshmerick a lot of thanks, since now all we have to do is pick and choose among APNs, as opposed to dealing with AT&T trying to kick us off the voice network.
Click to expand...
Click to collapse
+1
Indeed! Major kudos to Eric ^_^
Jade Eyed Wolf said:
+1
Indeed! Major kudos to Eric ^_^
Click to expand...
Click to collapse
Thanks guys. It's hard to take credit for something that was broken to begin with. I just emailed and called a few people who probably wondered how I found their information (google is amazing).
But since AT&T has fixed their issues, we can all celebrate and use this awesome smartphone as it was designed.
Enjoy!
So I'm on a 2GB a month plan. Is wap.cingular ok or should I change it? If so, change it to what? And what does dormancy do?
Just got mine around lunch from UPS, threw the battery in just to
fire it up. WOW! Screen is clear as a bell & bright.
Mine came from Germany via Amazon. Sealed Note box, inside a box
with the adapter & instructions to set it to English.
It will get all setup tonight.
Namuh said:
So I'm on a 2GB a month plan. Is wap.cingular ok or should I change it? If so, change it to what? And what does dormancy do?
Click to expand...
Click to collapse
On the 2GB plan, you should use the Phone apn. You'll get the best speeds that way. Just do a search for the correct settings on the Phone apn, and make sure that your account is provisioned for 4G. I believe you need to make sure that it using the "HSDPB" SOC code.
As for fast dormancy, you should disable that by entering *#*#9900#*#* in your dialer and disabling it from the menu that comes up. Basically, fast dormancy is a feature that some networks use in order to more quickly transition from an idle UMTS state all the way up to HSPA+ and back to idle again (when the connection isn't being used for a period of time). The idea behind this feature is to a) conserve battery life on your device and b) more efficiently scale and distribute available bandwidth between you and the cell tower. However, as AT&T does not use this feature on their network, having it enabled on your device can have a negative effect on your battery life in addition to making your data connection more erratic and generally slower (because there's wasted overhead being transmitted). The effect of disabling fast dormancy while on AT&T is that you'll notice the initialization time for your connection from idle to active will be slightly longer, but once active, it will stay at the highest available transmission rate (HSPA+) for longer before going back to idle instead of rapidly going between 3G, H, and H+ all the time.
Jade Eyed Wolf said:
On the 2GB plan, you should use the Phone apn. You'll get the best speeds that way. Just do a search for the correct settings on the Phone apn, and make sure that your account is provisioned for 4G. I believe you need to make sure that it using the "HSDPB" SOC code.
Click to expand...
Click to collapse
I'm not positive, but I believe that SOC code is for unlimited plans. Mine is a metered plan, and my new SOC code is HSSMT7. Once my SOC code changed to that, I was able to access the phone APN. Before I could not.
I'm curious if anyone else with a metered plan can confirm the different SOC code.
GenghisKhent said:
I'm not positive, but I believe that SOC code is for unlimited plans. Mine is a metered plan, and my new SOC code is HSSMT7. Once my SOC code changed to that, I was able to access the phone APN. Before I could not.
I'm curious if anyone else with a metered plan can confirm the different SOC code.
Click to expand...
Click to collapse
I'm on the 2GB Smartphone plan for 4G and my code, assuming I'm looking in the right place in my bill, is HSSM. I had to view my data plan details for my prior month billing to find it. But, I'm not sure that's the correct code because nowhere do I see the acronym SOC.
In any case, I'm using the "phone" APN settings and I get 6.6 down and 1.0 up.
QuarterToNine said:
I'm on the 2GB Smartphone plan for 4G and my code, assuming I'm looking in the right place in my bill, is HSSM. I had to view my data plan details for my prior month billing to find it. But, I'm not sure that's the correct code because nowhere do I see the acronym SOC...
Click to expand...
Click to collapse
I view my SOC code by the following method which I learned somewhere on this incredibly useful forum:
1. Log on to my AT&T Wireless account.
2. Choose Manage Features.
3. On the next displayed page, find and choose the hyperlink to your data plan. Mine is called DataPro 2 GB for Smartphones on 4G.
4. On the resulting popup window, take a look at the URL, particularly the end, which shows the SOC code. My URL ends: olamexecute?selectedFtrSoc=HSSMT7
Admittedly this roundabout way of viewing your SOC code is sort of like driving from LA to SF by way of NY. Reportedly there is an easier way viewing your data details, but if that alternative works, I can't figure out how to use it. Perhaps one of the countless more knowledgeable people on this forum can chime in.
FWIW, the very helpful AT&T tech who helped me provision my account so I could use the phone APN told me that the actual SOC code wasn't that critical, there were several that would get me to where I wanted to go (the HSPA+ fast lane).
Hope this helps.
GenghisKhent said:
I view my SOC code by the following method which I learned somewhere on this incredibly useful forum:
1. Log on to my AT&T Wireless account.
2. Choose Manage Features.
3. On the next displayed page, find and choose the hyperlink to your data plan. Mine is called DataPro 2 GB for Smartphones on 4G.
4. On the resulting popup window, take a look at the URL, particularly the end, which shows the SOC code. My URL ends: olamexecute?selectedFtrSoc=HSSMT7
Admittedly this roundabout way of viewing your SOC code is sort of like driving from LA to SF by way of NY. Reportedly there is an easier way viewing your data details, but if that alternative works, I can't figure out how to use it. Perhaps one of the countless more knowledgeable people on this forum can chime in.
FWIW, the very helpful AT&T tech who helped me provision my account so I could use the phone APN told me that the actual SOC code wasn't that critical, there were several that would get me to where I wanted to go (the HSPA+ fast lane).
Hope this helps.
Click to expand...
Click to collapse
Thanks! I'm on HSSMT7. Also, it's good to know that the SOC code isn't that critical. Thanks again.
QuarterToNine said:
Thanks! I'm on HSSMT7. Also, it's good to know that the SOC code isn't that critical. Thanks again.
Click to expand...
Click to collapse
You're welcome. One caution. I'm relating what the AT&T tech told me (about the actual SOC code not being that critical). He seemed knowledgeable as well as helpful. But I can't 100% confirm. Though after his change I had no problem accessing the phone APN.
QuarterToNine said:
I'm on the 2GB Smartphone plan for 4G and my code, assuming I'm looking in the right place in my bill, is HSSM. I had to view my data plan details for my prior month billing to find it. But, I'm not sure that's the correct code because nowhere do I see the acronym SOC.
In any case, I'm using the "phone" APN settings and I get 6.6 down and 1.0 up.
Click to expand...
Click to collapse
Good point. I hadn't thought of that.
Hmm thats weird my code is olamexecute?selectedFtrSoc=LTESMT2....I used my wifes APN settings from her skyrocket and I get way faster download results in speedtest from 1.92mbs to 6.0mbs, but it times out in the upload phase of the test. MMS works, text works, phone calls work and internet works. I'm gonna try the "phone" apn settings next. Her skyrocket APN name is ATT pta. We don't have 4g LTE in our area yet. I'm on the 2GB 4g LTE data plan (I had a skyrocket too and returned it) and so is she. I also have AT&T's LTE provisioned SIM card in my Note kept over from my skyrocket. Should I call tech support and have my IMEI provisioned for HSPA+?
Namuh said:
Should I call tech support and have my IMEI provisioned for HSPA+?
Click to expand...
Click to collapse
Namuh, I'll let better minds than mine answer that. My advise is to hold off until you get those answers. Once you go back you may never go back, if you know what I mean.
On the phone with tech support. My account is provisioned for 4G Hspa+. under a different imei number than the note though. They did give me the option to replace the imei number that is on my account with the Notes imei number. Not sure what to do. She told me that her supervisor told her that the only apn settings she could give out is wap.cingular because its an international phone. But wap.cingular only gives 3g speeds right? I'm in an Hspa+ area. I'm off the phone with tech support. I'm going to wait on a reply in this thread or other threads to see if I should have them apply my Notes imei to my account.

AT&T APN Settings for LTE

Anyone else on AT&T unable to get LTE? The APN settings that auto-downloaded are correct according to AT&T's documentation, but I'm only getting H+.
Your GPRS could be disconnected. I'd you use app advanced signal status you can look at settings Beyer to see if your set up correctly
MasterBrick SCH-I545 Galaxy S4, XdA mobile app...
I had to use my girlfriends IMEI for her Nexus 5 for it to pick up LTE. Before that, I was only getting H+. Try to get an IMEI of another ATT LTE Android phone and it should do the trick!
Can't get LTE to work
I need some help. I have the new, unlocked, Sony Xperia Z3 Compact and I can't get on the AT&T LTE network as well. Here are the steps I have taken:
The Setup
I have a Samsung Galaxy S4 that is on the LTE network with no problem
My AT&T account had a Lumia 820 device tied to my account (and old device of mine) and it worked fine for LTE on all of my future pones, including my S4
I purchased an unlocked D5803 Z3c from Handtec
My Activate Attempt
Went to the AT&T store to pick up a new nano sim card
I gave my new (Sony) IMEI number to the AT&T rep (stupid move, clearly) and they loaded it under my account
With the new sim, my Z3c could place calls and send/receive text messages
Data would not work
My Resolution Steps
I looked up APN settings online and tried several different variations
The HSPA+ Cingular APN settings worked, but left me without LTE service
I could not get the mobile.att.net APN and LTE settings to work
Reading Android Central and XDA, I discovered that others had this issue as well
Using forum advice, I called AT&T
The AT&T rep did confirm that my Sony IMEI number was registering as a "2G" phone, which is why I did not get LTE access
I put one of my extra LTE device IMEI numbers on my account
My phone still won't connect to the LTE network
I notice that even though they registered an LTE phone (and they confirmed it came up LTE), my AT&T account page shows an old flip phone silhouette
The rep noted that there was nothing else they can do...so I basically have to deal with it
I'm posting on XDA to leverage the wisdom of this crowd
I remain confident that this will get resolved, yet frustrated at the same time
I'm at a loss and wonder if I have to activate this nano sim in another supporting device or the like. Thoughts?
Thanks in advance for your help.
No clue, but AT&T tech support confirmed that my IMEI is registered and my previous two devices were all LTE devices. I have no idea what's going on either.
lolstebbo said:
No clue, but AT&T tech support confirmed that my IMEI is registered and my previous two devices were all LTE devices. I have no idea what's going on either.
Click to expand...
Click to collapse
Are you having the same issue? Do you see the cartoon sketch of a flip phone in your account as well?
What you have to do is give them the imei of an LTE capable phone. It absolutely does not matter that you will not actually be using that phone.
If you already have an LTE phone, just switch your SIM to your z3 when it arrives. It is absolutely unnecessary to call AT&T with your new IMEI. Anything AT&T tells you to the contrary is flat out wrong.
Issue resolved!
Bottom line...do not give these clowns your Xperia IMEI number.
When they entered the IMEI number it flipped my data plan from a grandfathered unlimited plan to a pay-per-use plan with no LTE (why they couldn't figures this out last night, it beats me). He was talking about my wife's plan and her unlimited data. I then noted "mine is unlimited too" and then said it wasn't. You can only imagine how things went from there.
The unrecognized IMEI number automatically switched me off of my plan.
They have me on a temporary 3GB plan, as the support rep couldn't get me back on the unlimited plan. They have to send the change to their back office team and it will take a week to get it back.
My phone now has the 4G icon versus H+.
Sent from my D5803 using XDA Free mobile app
ktcred said:
Are you having the same issue? Do you see the cartoon sketch of a flip phone in your account as well?
Click to expand...
Click to collapse
Nope, it actually still shows my previous LTE-capable phone.
I actually also initially had this issue ; I was sitting in the AT&T &T store on the phone with tech support until the sales rep realized my phone wasn't showing up in the system as an LTE device. He input a bogus LTE IMEI for me, after which I restarted my phone. It's been working for me since then
Whelp, I guess I'll go to the AT&T store again later, then.
So everything that is claiming to have LTE ----> Do you have a 4G icon on your phone or LTE? I am in US, went to ATT store ---they entered an imei of a Samsung Galaxy S5 and now it shows 4G. If you go into mobile networks preferred network mode it says 4G preferred/wcdma/gsm. I am assuming this is just due to the UK software version not being the same as US...
macklobell said:
So everything that is claiming to have LTE ----> Do you have a 4G icon on your phone or LTE? I am in US, went to ATT store ---they entered an imei of a Samsung Galaxy S5 and now it shows 4G. If you go into mobile networks preferred network mode it says 4G preferred/wcdma/gsm. I am assuming this is just due to the UK software version not being the same as US...
Click to expand...
Click to collapse
Says 4G. I think we are good
Sent from my D5803 using XDA Free mobile app
IMEI problem rectified, they reverted it to my previous phone's IMEI. Now displaying 4G. Sweeeeeetness.
It's just silly that AT&Ts LTE is tied to the IMEI in their system and not simply having an LTE capable phone.
I ported a line to use with my Z3c and gave them the IMEI of an AT&T HTC One so that LTE would work, but they would only send me a micro sim because according to the IMEI that's the sim I need. Tried to tell them I need a nano sim but the gal on the phone said she couldn't send one, I'd have to go to a store pick one up.
If you are going from an LTE phone that uses a nano SIM card to the Sony Xperia Z3 compact, it is not necessary to contact AT&T. You will need to manually add the APN settings on your Sony Xperia Z3 compact. Here is the path to get to the APN settings..
Settings > More > Mobile networks > Access Point Names > press + to add a new APN
Enter in the following settings listed below
Name ATT Phone
APN phone
Proxy Not set
Port Not set
Username Not set
Password Not set
Server Not set
MMSC http://mmsc.mobile.att.net
MMS proxy proxy.mobile.att.net
MMS port 80
MCC 310
MNC 410
Authentication Type None
APN type default,mms,supl,hipri
APN protocol IPv4
Bearer Unspecified
Save the changes you made, select the APN you just created and reboot the phone. Everything should be working from there.
Here is where I got the information from: http://www.att.com/esupport/article.jsp?sid=KB424489&cv=820&_requestid=838329#fbid=ecLfo9YLvXa
So I do have the 4g icon in my status bar. Does this mean that LTE is working fine?
The only reason I am asking is because on the MY ATT page I do only see the silhouette of a flip phone.
Edit: My phone automatically downloaded internet and MMS settings when I first booted it up. Is this what others are doing?
Alex2x3 said:
So I do have the 4g icon in my status bar. Does this mean that LTE is working fine?
The only reason I am asking is because on the MY ATT page I do only see the silhouette of a flip phone.
Edit: My phone automatically downloaded internet and MMS settings when I first booted it up. Is this what others are doing?
Click to expand...
Click to collapse
Yes, you are getting LTE on your phone
LTE = 4G in Europe
4G = H+ in Europe
3G
etc
If you do a speed test, you will see that you are getting LTE speeds on your phone
Problem here too. I just went in to get a nano sim. The guy hooked up my number from a note 2. Does not show data. He said I needed to put in my IMEI number from the box. I didn't from recommendations on here. The problem is that I didnt have a rebutle sp? Because I really don't know how it works. He said if my note 2 was lte, it should work. I don't know what the heck to do
Notchr302 said:
Problem here too. I just went in to get a nano sim. The guy hooked up my number from a note 2. Does not show data. He said I needed to put in my IMEI number from the box. I didn't from recommendations on here. The problem is that I didnt have a rebutle sp? Because I really don't know how it works. He said if my note 2 was lte, it should work. I don't know what the heck to do
Click to expand...
Click to collapse
I would try again, maybe try to get a different service rep. The IMEI from an AT&T Note 2 should work.

Can't Activate Note8, fails on configuration with Sprint & Boom Mobile

Hi Guys, I'm wondering if someone more knowledgeable can help advise. I've spent 12 hours and cant activate my Unlocked Qualcomm Note8 on any of my service providers (SMN-950U1.)
I want to use it on Boom Mobile Red (Verizon MVNO)
I cant get the Network Operator to configure, when I select Verizon it fails on configuration. I'm not referring to APN because I do not even get calls, the Operator is listed as "Emergency Calls Only". The Sim works perfect on my Pixel XL and iPhone 7 Plus. This phone was purchased unlocked form Samsung direct with clean IMEI. I called Samsung and they have no idea, they said the phone is defective, which I believe it is not.
I had an issue activating with Sprint and still have not had Data working, though I was able to get calls. I've given up w/ Sprint and will upgrade that line with a iPhone X.
I inserted my friends Verizon Post Paid Sim from his Moto Mod phone and everything was perfect (calls, TM, LTE calling) and the phone got LTE+. Is it possible the Note8 unlocked will only work with the big 4 carriers, ST and TW? I read a similar issue people from Boost Mobile have when they insert their sims it says invalid Sim. I really have no idea what is going on - Boom doesn't have many customers and their support team has never delt with this issue, they said the phone is defective. Has anyone been able to use a Unlocked Note8 on Boom? I've tried flashing various variants of firmware, including Verizon with no success. I'm puzzled with what is going on.

Flash Sprint note 8 to work on Verizon

I have a sprint note 8 and ive tried to follow the guides to flash unlocked firmware and keep getting sha256 error. I put my Verizon SIM card in and it works but it is always roaming and Verizon said I don't have a phone active on my account. I don't know if there is a way to fix it and I'm super frustrated trying to flash unlocked firmware trying to fix it any help would be appreciated.
If the phone has a clean IMEI it will work on T-Mobile, Metro PCS, AT&T, Verizon Prepaid (PagePlus) or any other GSM carrier in the US and worldwide, Phone will work on Roaming State , Make sure you add your Carrier APN for the Data settings.
Sounds like you are stuck in roaming state nothing you can do about it.. I bought the unlocked model cause I figure it's best to bout be carrier locked
What do you mean by roaming state?
Surely roaming state is when user roams onto a different network other than their own. Example, T Mobile customer travels to Spain and roams onto Mobistar Spanish cell network using his or her existing T Mobile sim card regardless of what the device is.
Perhaps that's how it works between the two USA cdma carriers? - the way you mentioned it.
Sent from my SM-N950U using Tapatalk
Limeybastard said:
What do you mean by roaming state?
Surely roaming state is when user roams onto a different network other than their own. Example, T Mobile customer travels to Spain and roams onto Mobistar Spanish cell network using his or her existing T Mobile sim card regardless of what the device is.
Perhaps that's how it works between the two USA cdma carriers? - the way you mentioned it.
Sent from my SM-N950U using Tapatalk
Click to expand...
Click to collapse
So fp r short you are using sprints towers on Verizon's network is what I believe read below
roaming is a term used to describe the ability of phones to connect to the network of a different carrier, abroad or at home in order to offer users the same features they use while on their “home” network – making and receiving calls and text messages and surfing the web. Roaming is possible thanks to the international agreements carriers have with other carriers, in order to offer their wireless services in other regions of a country or of the world.

Flashed AT&T Firmware to my unlocked Note9, no VoLTE?

So I tried digging around and haven't found any similar situations. I flashed the ATT firmware to my Unlocked Note 9. I get WiFi calling and Visual Voice Mail. However, under Settings -> Connections -> Mobile Networks there is no options for "Enhanced LTE services" or something like that. I also do not get e VoLTE symbol in the status bar like I've seen on others devices. Am I missing something? Should I try swapping the SIM card? Any insight would be great. Cheers!
Naterade said:
So I tried digging around and haven't found any similar situations. I flashed the ATT firmware to my Unlocked Note 9. I get WiFi calling and Visual Voice Mail. However, under Settings -> Connections -> Mobile Networks there is no options for "Enhanced LTE services" or something like that. I also do not get e VoLTE symbol in the status bar like I've seen on others devices. Am I missing something? Should I try swapping the SIM card? Any insight would be great. Cheers!
Click to expand...
Click to collapse
It's been discussed a lot here. The basic ideal is that AT&T, moreso than any other carrier, likes to restrict features from devices they didn't sell. It's done by the IMEI on the line. Firmware is one part of the equation, as you've discovered, but certain things just will not work without more steps.
Essentially, here's the process: Find a real AT&T device capable of VoLTE. Swap the IMEI of that device onto your line temporarily by placing your SIM card in it. You might also have to call AT&T and have them swap the IMEI on your line while the SIM is in. Have AT&T unblock the VoLTE feature. Put the SIM back in the device you actually want to use.
if I buy an unlocked note 9 from best buy i should not see this problem with my T-Mobile sim card right?
alher591 said:
if I buy an unlocked note 9 from best buy i should not see this problem with my T-Mobile sim card right?
Click to expand...
Click to collapse
T-Mobile doesn't care at all where you bought your device. And most features work on unlocked, too. Missing from U1 on TMB:
- Video calling
- Native digits
If you flash to U, you get literally everything the network can do.
I have a AT&T Note 9 and I don't have the VoLTE listed in that area
It must be on by default (hardcoded) or is listed in another area

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