AT&T on Unlocked Note 8 WIFI Calling why one phone will work and one wont!? - AT&T Samsung Galaxy Note 8 Questions & Answers

I have 2 Note 8s right from Samsung Unlocked. My dad and I are both on AT&T. We both flashed the AT&T firmware. His works with WiFi calling mine doesn't. The only 2 differences are I took an update the day before we flashed and he did not. Also he has had WiFi calling on AT&T with an LG G6 phone and used it. I have never activated any device on WiFI calling with AT&T prior to this. Last night I put my sim in his old LG G6 and called AT&T to swap IMEI numbers. With that phone I was able to activate WIFI calling.
So is the issue really the unlocked note 8s IMEI numbers not set up with AT&T correctly and my dad got lucky or is it with the firmware software?
I have had so much help from BlueFox721 and a few others I know there is an answer out here.
The crappy thing about this is that it is more important for my dad to have WiFi calling than me but now that I know it is not working I don't want to give up!

chrisusa96 said:
I have 2 Note 8s right from Samsung Unlocked. My dad and I are both on AT&T. We both flashed the AT&T firmware. His works with WiFi calling mine doesn't. The only 2 differences are I took an update the day before we flashed and he did not. Also he has had WiFi calling on AT&T with an LG G6 phone and used it. I have never activated any device on WiFI calling with AT&T prior to this. Last night I put my sim in his old LG G6 and called AT&T to swap IMEI numbers. With that phone I was able to activate WIFI calling.
So is the issue really the unlocked note 8s IMEI numbers not set up with AT&T correctly and my dad got lucky or is it with the firmware software?
I have had so much help from BlueFox721 and a few others I know there is an answer out here.
The crappy thing about this is that it is more important for my dad to have WiFi calling than me but now that I know it is not working I don't want to give up!
Click to expand...
Click to collapse
I hope someone gets it figured out...It would be nice if everything just worked out of the box...

My phone is back to the state it was in out of box I believe. It is telling me Shave an update. I am not sure if the first time it updated it changed something that flashing back to original will not undo. I am contemplating trying to flash the same ATT firmware that I did on my dads or just wait and see what develops over the next few days. I have flashed so many times in the last 24 hours I am not sure what is in my phone

Related

Unlocked and s off random loses service

Well back in 2014 I purchased the htc one m8 from Verizon which was a huge mistake because the bill was huge aswell. I then left Verizon after about half a year and went to metropcs and purchased an lg. Me being a noob I didn't know that you could unlock phones for a different carrier. So for the longest time I've just been using the m8 as a really nice Ipod. So just a few weeks ago I purchased sunshine and unlocked and s off my m8. I did research and found I needed apn settings and I found the correct settings I needed for my phone. After that I called metro pcs and they tied the device to my account with the imei and the SIM card number, over the phone. It worked out dand, I could see the word metropcs at the top and I could call my friends and my parents, I could text and send picture message. It even said I had 4g lte at the top. But here's the problem. About 4 times a day I will lose all service, and to make it come back on I have to attempt to make a call and as soon as I make the call it drops and says call lost. And then give it about 5 mins and I have my service back and I get all my messages that I would have gotten before all at once. Unless I try to make that call I won't have any service. This happens about 4 or 5 times a day and it's really annoying. I need help on how to fix this. Would I need to flash a custom rom like viper rom instead of this Verizon crap? I'm running android version 5.0.1 and I am unlocked and s off.
Try a different ROM like viper and see if it solves it?
Sent from my HTC6545LVW using Tapatalk

[HELP]Samsung Korean S8+ KT - SM-G955N TMobile Network Problem

Hello everyone, im new here kept searching everywhere for solution for my problem without any success. In may 10 i bought SM-G955N KT module, it was working great with 2g / 3g / 4g / LTE / LTE+, i went out of usa for almost 3 month and when i came back my phone doesn't work well with tmobile, i can send msgs use lte internet but i cant do calls at some areas, some times i have full lte bar and when i try to make a call it goes to 0 signal bar, i called tmobile many times about the issue but no solution i found out that they did upgrades to their towers in the period i was out of usa from may to august, right now i cant use the phone as any normal person its been a month that i cant use the phone at my house and some areas, i can make calls sometimes if im at different tower locations. Question is, is there any solution for this problem since tmobile did those tower upgrades its screwed up everything..... should move out to att or verizon or what should i do. I really need help with this problem its been a month, any solution would be welcome if it requires root or not i dont care i just want to find a solution for this,
Thank you.
Have you tried resetting your network settings and/or getting a new sim card?
Its not the sim card i already changed it to a new one also i tried it on a iphone 7s plus and it works fine, my phone is bone stock no root no custom software alsi its the korean version when i looked around i found that tmobile did some network upgrades from may to aug and thats when my phone got screwed up, i was albe to play with the ims setting and i got the phone to recive calls but i cant make calls, does my phone screwed up because it has the korean csc and the stock firmware or whats going on here
I'm not quite sure I understand your experience. From what I am reading, you went to Korea, got the G955N (which I bought for both myself and my wife), and then came back to the states and can't get it to work with T-Mobile?
I tried to get mine to work with T-Mobile and have experimented extensively with different CSCs and ROMs.
I eventually went over to AT&T
I've also had a rather extensive experience of how to get 4GLTE working here in the states with AT&T.
Feel free to reply here or DM me if you wish.
caniswesley said:
I'm not quite sure I understand your experience. From what I am reading, you went to Korea, got the G955N (which I bought for both myself and my wife), and then came back to the states and can't get it to work with T-Mobile?
I tried to get mine to work with T-Mobile and have experimented extensively with different CSCs and ROMs.
I eventually went over to AT&T
I've also had a rather extensive experience of how to get 4GLTE working here in the states with AT&T.
Feel free to reply here or DM me if you wish.
Click to expand...
Click to collapse
Hello thanks for your input, actually i bought the phone in the box brand new from amazon, it came here on may 10 i used it for 7 days 4G LTE 3G works great then i had to go out of country for 3 month i came back at the end of august to find that tmobile did a huge tower upgrades in my area, since i came back i wasnt able to do calls and receive calls, i was only able to text and use LTE internet but not calls, i went to different towers area and i actually was able to make calls but not in every area because some times my signal bar goes down to 0 or even 1 signal and i cant make calls still but my other friends who owns iphones or usa version of android works fine except me. Yesterday i edited the IMS setting im still on stock fw and i enabled every single feature there and i was able to receive calls in my area but still i cant do calls, i wanted to make sure if im gonna follow the steps here in this guide i will be able to use TMOBILE CSC with the korean stock firmware and get the features of tmobile as VOLTE and WIFI CALLING etc with the right CSC for sure and without tripping knox
Thank you
Hi, I did some extensive searching and was not able to find a solution for this.
I've got the SM-G955N, and ran into the same issues as other users in this thread with T-Mobile, has anyone found a workaround to unlock the LTE bands necessary to make the SM-G955N work with T-Mobile?
I didnt find solution yet too, i dont know what to do i gave up i tried everything on the official software no root.
androw3349 said:
Its not the sim card i already changed it to a new one also i tried it on a iphone 7s plus and it works fine, my phone is bone stock no root no custom software alsi its the korean version when i looked around i found that tmobile did some network upgrades from may to aug and thats when my phone got screwed up, i was albe to play with the ims setting and i got the phone to recive calls but i cant make calls, does my phone screwed up because it has the korean csc and the stock firmware or whats going on here
Click to expand...
Click to collapse
I had a phone with the Korean CSC as well, N phone as well. I left the CSC alone and it worked with T-Mobile and ATT here in the US just fine, last fall.
I later changed the CSC to XXA, and still works well. Just tested it this week with T-Mobile, and it's working. I have to say, that locally, T-Mobile has much poorer spot area service than ATT. Kinda puzzling, but that is the way it is.
My phone is rooted, so it make things a bit more handy to mess about and return to my previous setups.

s3 frontier with att and s8 galaxy unlocked phone numbersync is a no go?

I spent over 2 hours last nite with att reps trying to enable numbersync to work between the s3 and s8 phones.. the s8 phone is an unlocked phone (not bought through att), only to find out today via another rep that the phone must be bought via ATT or truly att branded.. which i find a bit absurd, as i think others have succeeded..
Is this really the case.. anyone know or have this same experience?
Specifically this error would appear after going through the get started via the watch then on the phone (after creating a seperate accessid):
Oh darn! We can't enable device syncing on this phone. Want to find out more? Call us at 800.331.0500 so we can help.
(MSSITWINREL12)
If this turns out to really be an unlocked phone issue (which is a bit ridiculous), i think i read that it might be possible to take my sim card out of that phone and put in another phone that is att branded, enable number sync then put the card back in my s8 and go from there
Thanks
The phone does not have to be AT&T branded, I have a T-Mobile Note 4 and until the last update numbersync worked. Updated my S# over the weekend after avoiding it for as long as possible, and now numbersync is no longer an option on my S3.
pasco8525 said:
The phone does not have to be AT&T branded, I have a T-Mobile Note 4 and until the last update numbersync worked. Updated my S# over the weekend after avoiding it for as long as possible, and now numbersync is no longer an option on my S3.
Click to expand...
Click to collapse
Thanks for the reply.. your saying you had an unlocked tmobile phone on att and it was working till a recent tizen update then?
The rep further told me to take the phone to the best buy samsung experience store and have it flashed with the att firmware to get around this issue.. maybe not needed then? (which i assume means a wipe and possibly lose my unlock)
I had the same problem with my Gear S3 and my Axon 7. Worked on for a solid hour with an ATT rep in store and another hour on phone with someone else. Finally it was determined that it wouldn't work on an unlocked phone. Haven't tried the sim swap with an ATT branded device yet, but if I do, I'll let you know if it works.
karlkarloff said:
I had the same problem with my Gear S3 and my Axon 7. Worked on for a solid hour with an ATT rep in store and another hour on phone with someone else. Finally it was determined that it wouldn't work on an unlocked phone. Haven't tried the sim swap with an ATT branded device yet, but if I do, I'll let you know if it works.
Click to expand...
Click to collapse
Spoke to an att rep again today who called me.. basically in my case the 950U1 s8 phone.. because its this model it wont work with numbersync they say.. they also contradicted the previous reps suggestion of taking the phone to the samsung experience place and having the att firmware flashed on it (or doing it at home).. saying it wont help.. that they need HD voice provisioned and it wont let them provision it (the phone wont).. they said swapping the sim card to a real att phone only may help for a short period, till the system does a sweep, sees a non att phone and reverts it (same with just adding the imei to the database).. There is also a good chance the recent update to either the s3 or the samsung s8 caused numbersync to do a detection for unlocked phones and not allow this (they indicated).
They said i could still try doing the firmware flash but it probably wouldnt work (i dug around online trying to find out which flash it would be and i didnt get too far, short of going to the store to do it at best buy samsung experience)
Really sucks, as the alternative, if i were that desperate to enable this feature (i dont think i am willing to go this far) would be to sell the old phones and get new att branded ones.. end up costing me the price of a new watch in the mix just to do that
markm75 said:
Spoke to an att rep again today who called me.. basically in my case the 950U1 s8 phone.. because its this model it wont work with numbersync they say.. they also contradicted the previous reps suggestion of taking the phone to the samsung experience place and having the att firmware flashed on it (or doing it at home).. saying it wont help.. that they need HD voice provisioned and it wont let them provision it (the phone wont).. they said swapping the sim card to a real att phone only may help for a short period, till the system does a sweep, sees a non att phone and reverts it (same with just adding the imei to the database).. There is also a good chance the recent update to either the s3 or the samsung s8 caused numbersync to do a detection for unlocked phones and not allow this (they indicated).
They said i could still try doing the firmware flash but it probably wouldnt work (i dug around online trying to find out which flash it would be and i didnt get too far, short of going to the store to do it at best buy samsung experience)
Really sucks, as the alternative, if i were that desperate to enable this feature (i dont think i am willing to go this far) would be to sell the old phones and get new att branded ones.. end up costing me the price of a new watch in the mix just to do that
Click to expand...
Click to collapse
.
When I first bought the watch it was for the numbersync feature. My first problem was even though the Samsung rep and the bestbuy rep said that it would work with my Note3, it did not. took several calls and many hours of trying to figure out the HD Voice (VOlte) provisioning. Bought a TMobile Note 4, rooted and rom'ed this worked to setup numbersync. the only problem was it would occasionally turn off numbersync, this occurred about once a month. Then if failed completely said that this line is not accceptabl;e for numbersync. this was after about six months. Discovered that it appeared to be age of firmware related, I was on a TM firmware that was several updates out of date. When I odin flashed the latest firmware numbersync worked again until the recent update to 3.0.0.1 on the gear firmware. Now I have the line not acceptable for numbersync again. I'm going to try to update firmware again to see if that works. If not I will probably look to change carriers to TM. will cost the price of a new watch, but will get me out of AT&Ts locked boot loader.
BTW, setting up numbersync on a different phone and switching back will not work, Tried several times and as soon as you turn on the phone that is not HD Voice capable with your SIM card in it the system sees it and turns off numbersync almost instantly. went throught that trying to get my Note 3 to work.
In all my experience the Samsung and AT&T reps were not a good resource. Numbersync does not appear to be a very popular feature and they do not know much about it.
pasco8525 said:
.
When I first bought the watch it was for the numbersync feature. .
Click to expand...
Click to collapse
My main motivation for it has been that.. someone correct me if this isnt accurate.. if your phone dies or is off.. when you dial someone from the watch or text them it will still show the cell phone phone number, not the watch phone number as it does now if bluetooth isnt on.
I'm in the process of gathering the files i need to do the att firmware flash and hopefully hd voice works then (as others say it has).
markm75 said:
My main motivation for it has been that.. someone correct me if this isnt accurate.. if your phone dies or is off.. when you dial someone from the watch or text them it will still show the cell phone phone number, not the watch phone number as it does now if bluetooth isnt on.
I'm in the process of gathering the files i need to do the att firmware flash and hopefully hd voice works then (as others say it has).
Click to expand...
Click to collapse
Yes, that is the whole point of numbersync. The watch uses the phones number not it's own.
Tried updating to the latest firmware and a ROM based on it. No luck still get a rather comical response "Oh darn! We can't enable device syncing on this phone. " worked until the tisen update.
There also seems to be confusion on numbersync with the att reps.. one person told me the watches dont need their own numbers.. that numbersync is all we need (but how would the watch make a call if the phone is off).. another said yes they need external numbers for number sync or solo
edit: i see your last post.. so the latest reps are correct then.... so they assigned us numbers and $10 access fees each with activation fees for no reason basically.. ugh
The watch has to have it's own number, that is it's address on the network. Without it numbersync would have no way to send calls to it. Same as with the LTE enabled iPads they could not make a call, but had to have an address on the cellular network.
Just a quick note...i too spent 3 hours in an AT&T store trying to get numbersync to work..., finally returned the S3 Frontier cancelled the number in it and left frustrated...i now have a GS8 unlocked on AT&T through my work...that is synced to a Verizon Gear S3 Classic lte and i simply use call forwarding with YouMail. If i do not answer my phone after 3 rings it gets sent to my watch and if I still do not answer then Youmail picks it up..If I call out or text with the watch separately then I just let my customers know that I have 2 numbers 1 for my cell and one for their watch. I just don't think AT&T is ready for the Numbnersync technology yet and they just don't care enough to train their own people on it, sad as it is a good promise...
Sent from my iPad using Tapatalk
pasco8525 said:
The watch has to have it's own number, that is it's address on the network. Without it numbersync would have no way to send calls to it. Same as with the LTE enabled iPads they could not make a call, but had to have an address on the cellular network.
Click to expand...
Click to collapse
I meant phone number.. are you saying phone number? After the rep said i didnt need a phone number for each watch, she credited me back the cost of the two lines and said just to contact them that they would enable the numbersync once i had the phones ready.. I'm assuming number means imei, which they still have in the system.
Yes each watch has to have it's own phone number. I believe this is another case of AT&T rep not understanding number sync.
I managed to firmware update so that i have the att bloatware (didnt even need reset, all software was kept).. i confirmed HD voice is working but WiFi calling throws an error to contact ATT.. hd voice was the key for numbersync.. however.. despite this.. and 2 hours on the chat line with ATT.. i still get an error when you do the s3's get started numsync and it opens the page on the phone.. the oops, device sync cant work with your phone (which went from a 950U1 to a 950U btw, which is good as well).. They escalated to another backend team, but i highly doubt they will get it working.. most likely they'll still complain that my phone (was) an unlocked phone, despite adding the att firmware to it.
markm75 said:
I managed to firmware update so that i have the att bloatware (didnt even need reset, all software was kept).. i confirmed HD voice is working but WiFi calling throws an error to contact ATT.. hd voice was the key for numbersync.. however.. despite this.. and 2 hours on the chat line with ATT.. i still get an error when you do the s3's get started numsync and it opens the page on the phone.. the oops, device sync cant work with your phone (which went from a 950U1 to a 950U btw, which is good as well).. They escalated to another backend team, but i highly doubt they will get it working.. most likely they'll still complain that my phone (was) an unlocked phone, despite adding the att firmware to it.
Click to expand...
Click to collapse
Update here.. i managed to get everything working by going with a new sim card.. wifi calling works now.. and i was able to complete numbersync setup.. the only remaining issue i have is that my callerid seems to be blocked on the receiving end.
markm75 said:
Update here.. i managed to get everything working by going with a new sim card.. wifi calling works now.. and i was able to complete numbersync setup.. the only remaining issue i have is that my callerid seems to be blocked on the receiving end.
Click to expand...
Click to collapse
With the Firmware did you have to go through the full process where you changed the CSC and flashed the ATT firmware? Currently I am running a Sprint phone that is unlocked an running the US Unlocked firmware. Even running the ATT firmware they still were not able to get HD Voice or WiFi calling working for me.
eaglerugby04 said:
With the Firmware did you have to go through the full process where you changed the CSC and flashed the ATT firmware? Currently I am running a Sprint phone that is unlocked an running the US Unlocked firmware. Even running the ATT firmware they still were not able to get HD Voice or WiFi calling working for me.
Click to expand...
Click to collapse
The full steps, or mostly full.. are here in this thread..
The short of it was that i only ran regular odin at first.. just did HOME_CSC (using the verizon firmware which covers all carriers).. then rebooted the phone and did all the check boxes and the regular CSC.. after rebooting nothing was wiped and att bloatware was there... at this point hd voice was working.. wifi calling wasnt.. so i went to the store, got a new sim card today, then wifi calling was working.. numbersync took the code on the phone without error.. however.. now i'm realizing it isnt really working.. when i turned the phone off, and texted, it showed my s3 phone number.. and my callerid is still botched.. i think att botched something in this whole process.. so yet another call to them needed.
markm75 said:
The full steps, or mostly full.. are here in this thread..
The short of it was that i only ran regular odin at first.. just did HOME_CSC (using the verizon firmware which covers all carriers).. then rebooted the phone and did all the check boxes and the regular CSC.. after rebooting nothing was wiped and att bloatware was there... at this point hd voice was working.. wifi calling wasnt.. so i went to the store, got a new sim card today, then wifi calling was working.. numbersync took the code on the phone without error.. however.. now i'm realizing it isnt really working.. when i turned the phone off, and texted, it showed my s3 phone number.. and my callerid is still botched.. i think att botched something in this whole process.. so yet another call to them needed.
Click to expand...
Click to collapse
Thanks. It sounds like the latest firmware they did seems to fix some of the issues from bringing a non-ATT phone over but does not resolve everything. It looks like I won't be able to do this though. ATT and the ebay seller are unable to clear the ICCID on my watch, I have to sadly do a return now.
Kinda unrelated, yet ATT was horrible even for normal Sammy phone/watch. After dumping ATT service/hardware for various reasons a few moths back... Sammy watch/phone from Verizon hardware/service works flawlessly. Am carrier neutral, but one works reliably, one didn't.
BTW, Sammy pay via watch hiccuped via ATT at times, yet works flawless via Verizon.
markm75 said:
The full steps, or mostly full.. are here in this thread..
The short of it was that i only ran regular odin at first.. just did HOME_CSC (using the verizon firmware which covers all carriers).. then rebooted the phone and did all the check boxes and the regular CSC.. after rebooting nothing was wiped and att bloatware was there... at this point hd voice was working.. wifi calling wasnt.. so i went to the store, got a new sim card today, then wifi calling was working.. numbersync took the code on the phone without error.. however.. now i'm realizing it isnt really working.. when i turned the phone off, and texted, it showed my s3 phone number.. and my callerid is still botched.. i think att botched something in this whole process.. so yet another call to them needed.
Click to expand...
Click to collapse
well 5 chat people later they finally fixed the unknown callerid issue.. apparently there is an internal back end feature for numbersync regarding it set to active and on.. both toggles were on.. the rep removed the "on" and now my callerid shows my number when calling from my phone (and from the watch when watch is in solo mode too).. everything works! :laugh:

Not registered on Network...?

I gotta problem lol. I haven't used this phone in over a month because I destroyed my LCD. So when the new one came I put it on and the phone was okay... Well until it kept saying about me not being registered. I mean I looked everywhere and my phone is unlocked and I'm using TMobile. But it only gives me the voicemail notification and that's all. My signal been going in and out. and I just flashed a new rom (s8/s8+ port). I don't really know where else to go from here. I can't call or use my data or anything. 3days out from going back to school and still don't have it fixed... I need a second opinion before I will decide to go back to a stock rom then get root back.
Could be just something minor or...
I've got TMobile... (Well mint sim) they said that my sim card is purged and that they needed to update the Sim card or they'll send out another if nessacary. Hope they'll fix the problem.
Min and Prl is Null..
I'm guessing it's no longer the Sim card that's causing the problem. I still need help
Hey guys sorry for posting here but I was wondering if it's possible to use a sprint note 5 on Verizon? I'm thinking about getting the note 5 but I want to be able to unlock the bootloader and root. Only issue is I have Verizon. Any suggestions on which version of the note 5 I should get?
Thanks
[emoji106]
BigM69 said:
Hey guys sorry for posting here but I was wondering if it's possible to use a sprint note 5 on Verizon? I'm thinking about getting the note 5 but I want to be able to unlock the bootloader and root. Only issue is I have Verizon. Any suggestions on which version of the note 5 I should get?
Thanks
[emoji106]
Click to expand...
Click to collapse
Did you ever get an answer for this issue? I have a rooted Sprint Note 5 and switched recently to Verizon. Everything works right except my signal says roaming perpetually. That said, I am getting a data signal but I don't think it's up to snuff as far as 4g LTE. The way we got it going was the rep activated a SIM card with another phone before dropping it in mine. I had no data for a while but eventually got it to use data over mobile just, as I said, not full capacity mbps of LTE. I'm hoping to fix the signal saying roaming so I know if I have a 3g, 4g, LTE or whatever rather than just "R" and never being sure if I can access data over mobile with it being hit or miss. Any thoughts?

[Q] Is Wi-Fi Calling on AT&T Possible

I have an unlocked Pixel 3 on AT&T but the plan is through work. I recently got approved for Wi-Fi Hotspot and that works fine but I can't get Wi-Fi calling to work. I searched around and it seems that it's supported but I can't really find anything concrete. I'd call AT&T myself but like I said, the plan is through work and not in my name.
Our phone guy at work was told that they can't do it on Pixel 3 yet but maybe in the future. Is there something I can do or tell them to try or should I just sit and wait 18 months for my next phone?
Thanks all.
Answer: YES
I just swapped my SIM card for a new one and now Wi-Fi calling works on AT&T.
If you're a MOD, please lock this thread, the question has been answered.

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