Carrier Switch to ATT issues - Samsung Galaxy S8+ Questions & Answers

I just recently switched from Sprint to ATT after unlocking my phone. After the switch was pretty terrible when all the installed software just kind of broke. Caller ID even started screwing up.
Fast forward to now and I ran the process using the Factory Binary and Canadian Firmware and successfully got my phone to identify as an ATT phone and boot with the full logo and software suite. However after doing that I am still unable to get anything really ATT related working properly. All my caller ID issues are now fixed, but I can't get WiFi calling to work (the main reason I flashed ATT instead of unlocked)
Is there any way to get wifi calling working on my phone? If not should I just switch to the us unlocked firmware since Wifi calling is really the only reason I know of to use a carrier firmware.
Thanks!

Cannot find anyone to answer this either. Have Unlocked version of S8+ on AT&T and cannot get Wifi Calling or Video Calling. Get no answer that if I Flash AT&T firmware on phone will that get me Wifi Calling etc. like an AT&T phone.

I believe that with anything but a carrier sold device, you will never be able to get WiFi calling. In spite of flashing the proper CSC and firmware, the IMEI still shows up in their system as an "unknown" device.

Related

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:

Flashed G930T firmware onto G930V - phone locked?

I have a G930V and recently switched from Verizon to T-Mobile. I flashed the phone firmware to G930T so WiFi calling, VoLTE, and visual voicemail would work. After doing that, it seems the phone is now locked to the T-Mobile network - even though it was never locked on Verizon.
I wanted to de-bloat the phone and try G930U - but can I do that if the phone is locked now? Do I need to somehow unlock the phone first? Or is it only locked to the T-Mobile sim?
Also - If I switch to G930U, what will I lose other than bloatware? Just OTA updates? Do I have to do anything special to enable Advanced Messaging, Visual Voicemail, WiFi Calling, and VoLTE?
Mr_Transistor said:
I have a G930V and recently switched from Verizon to T-Mobile. I flashed the phone firmware to G930T so WiFi calling, VoLTE, and visual voicemail would work. After doing that, it seems the phone is now locked to the T-Mobile network - even though it was never locked on Verizon.
I wanted to de-bloat the phone and try G930U - but can I do that if the phone is locked now? Do I need to somehow unlock the phone first? Or is it only locked to the T-Mobile sim?
Also - If I switch to G930U, what will I lose other than bloatware? Just OTA updates? Do I have to do anything special to enable Advanced Messaging, Visual Voicemail, WiFi Calling, and VoLTE?
Click to expand...
Click to collapse
Are you "network-locked"? or have a different sort of issue? I have a ex-VZW S7; however, due to the previous owner, I was "network-locked" - and thus could NOT take the phone back to VZW (the phone's original network). I am a Tracfone customer; therefore, I COULD take the phone to T-Mobile (Tracfone uses both networks). My misgivings were, in fact, entirely due to previous experiences using T-Mobile's network (with Tracfone, Safelink Wireless, and Virgin Mobile USA. After porting the IMEI, I prayed and did the firmware change (both were flawless. Rather amusingly, my service has ALSO been flawless - better than it has previously been as a T-Mobile-MVNO customer - unexpected, to say the least. I went from swearing AT Trafcone (and T-Mobile) to swearing by them (and eating a heaping helping of CROW in the process) - when I'm wrong, I'm wrong. I've had VoLTE (and VoWiFi as well) since I've been on the Pink side of things - if you want updates, you want T-Mobile firmware, though. (I'm running Project L V.4 and knew going in I'd lose OTAs - if you'rer comfortable with that, that may be an option for you. If you're nervous, grab the latest T-Mobile ODIN TAR (it has its own thread) and flash that - the firmware is un-fooled-around with. Extract and flash with ODIN as normal.
Verizon S7 phones are not locked, period. There are instructions on how to put Tmobile rom on the phone. We have done 2 and both were easy and worked flawlessly. Wifi Calling and LTE
hankvb said:
Verizon S7 phones are not locked, period. There are instructions on how to put Tmobile rom on the phone. We have done 2 and both were easy and worked flawlessly. Wifi Calling and LTE
Click to expand...
Click to collapse
I know it is not locked as a Verizon phone. I am an talking about going BACK to 930V after flashing 930T. It appears to be network locked now...
I had the same issue. After changing the phone from a sm-930v to a sm-930t I placed a verizon sim in the phone and the carrier told me the device was network locked to T-Mobile. I used the T-Mobile unlock app and requested a carrier unlock. The message said, "phone permenantly unlocked." I am using a ATT sim card with Tracfone with no problems. By default Verizon phones are unlocked after 90 days if there are no pending contract issues. I think the T-Mobile carrier lock may depend upon the firmware you flash. You may want to wipe the data and try a different version.

930P->930U Not detecting Xfinity Mobile Sim [solved]

I flashed my S7 (930P) to a 930U following these instructions: https://www.youtube.com/watch?v=y0eye-zDOtQ
When I slap my XM sim in my S7, it tells me none detected. The sim is good, I can put it back in the e5 I snagged and it gets coverage immediately. I've tried flashing the modem with the VZW image and am pulling down the 930VC/CCT image now so I can try the Xfinity modem file in case that is the ticket.
If it's not, I'm not sure what my next step is. Any recommendations?
Turns out I'm not thinking straight. Checking the modem file now.
No luck
The device wasn't unlocked and I had the impression the U firmware would release that lock. Not true, still had to get Sprint to unlock.
@eskaryo
I have a sim unlocked Sprint S7 (g930p) on Android 8.0. And when I put in my active xfinity sim almost everything works. Data works, incoming and outgoing calls and texts work. But it won't switch out of roaming and all MMS including group text won't work. So do I just need to flash the firmware you mentioned to get everything working right? And can you flash it on a locked bootloader (which I believe this sprint s7 has)? If so can you confirm the exact firmware I need? Thank you!
I have the same problems with Xfinity service on my s7. This is most likely due to APN settings though I don't know for sure. Sorry I couldn't be more help.

How do I enable Wi-Fi calling?

Hello all.
I just moved to a new area where I need wifi calling because i have absolutely no service at my house. I even switched carriers over to at&t to see if i had bars with them.
Sony says that the phone supports it, but it needs software from the carrier put on the phone to enable it. At&t says that they have it turned on, but don't have anything for me to put on my phone to turn it on on my side.
Am I SOL with this phone, or is there something I can do to turn it on?
I know this most likely isn't the answer you're looking for, but how about Hangouts Dialer, by Google? I've used that successfully over WiFi at my father-in-law's where I got really bad regular cell service.
Otherwise, although I am on AT&T (Prepaid), I don't have my phone running stock Sony Android at the moment, and my phone wasn't provided by AT&T, so I can't check into any native WiFi calling it's supposed to have. Hopefully soon I get to try official Sony Pie on mine, when I have time.
Can I forward my regular calls to those services?
I also forgot to mention I bought this phone unlocked at best buy and it's running the official Sony rom and hasn't had it's bootloader unlocked or rooted or anything, but I've done it in the past, just haven't needed to on this phone yet.
Preview:
There has to be a way to root Wi-Fi calling into working or install native software/firmware to enable the carriers service. It's utter bull**** that neither the manufacturer or carrier have even a remote path to a solution for this issue when it's supposed to be supported on both ends and clearly isn't.

SM-G955U1 with AT&T firmware

Today I flashed over to the current DSH1 AT&T firmware for the unlocked model to try and get wifi calling and volte for AT&T. Every thing went successful and firmware shows it's the right firmware (DSH1), but I expected there to be a AT&T boot logo and bloatware which there was not. Calling AT&T they confirmed the sim has wifi calling activated and ready to go, but still refuses to show up. I just searched all day on this and seems no one is talking about this at all for AT&T. Putting in my girlfriend's T-mobile sim, wifi calling will show up in the phone settings as normal. Any ideas whats up? Is there another firmware for AT&T I should be using? Yes I used all 4 firmware files and not the home CSC, also did 2 factory resets to make sure.

Categories

Resources