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I just got my new unlocked S10 all set up dialed in. Model SMG973U1ZBAX.
I put in my AT&T SIM card in and went to turn on Wifi calling and couldn't find it. I've since learned that if you have an unlocked phone, you can USE the AT&T network, but you can't get Wifi calling (which is a must for me), Visual Voicemail or HD Voice.
Instead of flat out returning it, can I just flash the AT&T ROM and it would be as if it was a a stock AT&T phone?
I know I would get all the bloatware and stuff like that, But I have to have wifi calling.
Are there links yet to Stock AT&T ROM for the S10? I couldn't find any on the site.
Thanks
djrecon said:
I just got my new unlocked S10 all set up dialed in. Model SMG973U1ZBAX.
I put in my AT&T SIM card in and went to turn on Wifi calling and couldn't find it. I've since learned that if you have an unlocked phone, you can USE the AT&T network, but you can't get Wifi calling (which is a must for me), Visual Voicemail or HD Voice.
Instead of flat out returning it, can I just flash the AT&T ROM and it would be as if it was a a stock AT&T phone?
I know I would get all the bloatware and stuff like that, But I have to have wifi calling.
Are there links yet to Stock AT&T ROM for the S10? I couldn't find any on the site.
Thanks
Click to expand...
Click to collapse
Yes you can there's a thread somewhere in here with specifics on how to do it. I know you have to flash thru patched Odin and make sure you also flash userdata and csc to corresponding carrier.
jaestreetss said:
Yes you can there's a thread somewhere in here with specifics on how to do it. I know you have to flash thru patched Odin and make sure you also flash userdata and csc to corresponding carrier.
Click to expand...
Click to collapse
That's great news! Thanks. And I wouldn't have to root, right?
Does anyone know where the stock AT&T S10 ROM is? My searches are coming up empty. Or is "AT&T ROM" the wrong search words?
djrecon said:
That's great news! Thanks. And I wouldn't have to root, right?
Does anyone know where the stock AT&T S10 ROM is? My searches are coming up empty. Or is "AT&T ROM" the wrong search words?
Click to expand...
Click to collapse
Root is unrelated to firmware flashing. You only need Odin and the fw package. Your computer may, or may not need the Samsung USB drivers to be recognized.
Samfirm can be used to pull updates. You might find it on sammobile or updato, haven't checked.
djrecon said:
That's great news! Thanks. And I wouldn't have to root, right?
Does anyone know where the stock AT&T S10 ROM is? My searches are coming up empty. Or is "AT&T ROM" the wrong search words?
Click to expand...
Click to collapse
You should look for the G973U firmware. Thread is located HERE
jaestreetss said:
Yes you can there's a thread somewhere in here with specifics on how to do it. I know you have to flash thru patched Odin and make sure you also flash userdata and csc to corresponding carrier.
Click to expand...
Click to collapse
Sigh. Well. I can report and confirm that you can not use Wifi calling on the AT&T network with an unlocked S10.
Even though I loaded stock AT&T firmware, and was up to date, it just won't work. Gotta return the phone.
I've been dealing with their advanced tech team for over a week and they said that because the IMEI number shows it's an unlocked phone, the system keeps denying Wifi calling.
We actually got it to work at one point. It was a 3 day process with one of their techs forcing my IMEI number through their system. It worked for about an hour, then their system caught it and kicked out it's provisioning.
djrecon said:
Sigh. Well. I can report and confirm that you can not use Wifi calling on the AT&T network with an unlocked S10.
Even though I loaded stock AT&T firmware, and was up to date, it just won't work. Gotta return the phone.
I've been dealing with their advanced tech team for over a week and they said that because the IMEI number shows it's an unlocked phone, the system keeps denying Wifi calling.
We actually got it to work at one point. It was a 3 day process with one of their techs forcing my IMEI number through their system. It worked for about an hour, then their system caught it and kicked out it's provisioning.
Click to expand...
Click to collapse
I have it on my phone
The wifi calling but I had to get a whole new sim at the store I have provided a screen shot.
jaestreetss said:
I have it on my phone
The wifi calling but I had to get a whole new sim at the store I have provided a screen shot.
Click to expand...
Click to collapse
Oh wow. That's great! I tried the new SIM, same results unfortunately.
Maybe it's just the network out here in LA.
Galaxy S10 unlocked ATT firmware question
Hi I recently got Galaxy S10 Unlocked phone on online. At first i didnt get ATT wifi calling options appeared in my phone. Later i followed same thread that has 973U ATT firmware links, and flashed using ODIN. I can see all ATT apps and ATT wifi calling option now but i cannot enable it. When i enable it i got a message saying we cannot turn on WIFI calling on this a device and error code EDS0008. I tried to call ATT folks, but they are saying WIFI calling and HD voice is not supported on this unlocked device. Somehow they are seeing 973U1 as model number, but i had 973U as model number. I tried chaining sim to old iphone and I saw WIFI calling is working with IPHONE, but its just this phone I am seeing error. I am not sure what to do now. Did you see this issue ?
Can you give me exactly about the files you used and post steps to get att wifi calling ?
sorry for posting questions in multiple threads
I have an unlocked S10e and I use T-Mobile and before even flashing T-Mo firmware, I did have WiFi calling out of the box. Change carrier
avireddy1 said:
Hi I recently got Galaxy S10 Unlocked phone on online. At first i didnt get ATT wifi calling options appeared in my phone. Later i followed same thread that has 973U ATT firmware links, and flashed using ODIN. I can see all ATT apps and ATT wifi calling option now but i cannot enable it. When i enable it i got a message saying we cannot turn on WIFI calling on this a device and error code EDS0008. I tried to call ATT folks, but they are saying WIFI calling and HD voice is not supported on this unlocked device. Somehow they are seeing 973U1 as model number, but i had 973U as model number. I tried chaining sim to old iphone and I saw WIFI calling is working with IPHONE, but its just this phone I am seeing error. I am not sure what to do now. Did you see this issue ?
Can you give me exactly about the files you used and post steps to get att wifi calling ?
sorry for posting questions in multiple threads
Click to expand...
Click to collapse
Your best bet is to do an exchange for an AT&T version.
You can Flash the AT&T firmware. But there will be no way in h*** for you to actually enable the Wi-Fi calling feature since they block those IMEI numbers on their servers. YOU HAVE BEEN WARNED. YOU MIGHT NOT BE ABLE TO REVERT IT BACK TO THE OTHER FIRMWARE.
monkeydroiid said:
your best bet is to do an exchange for an at&t version.
You can flash the at&t firmware. But there will be no way in h*** for you to actually enable the wi-fi calling feature since they block those imei numbers on their servers. You have been warned. You might not be able to revert it back to the other firmware.
Click to expand...
Click to collapse
Quick question for ya:
YOU HAVE BEEN REPLIED TO. WHY CAN'T THEY JUST REFLASH THE PHONE WITH STOCK U1 FIRMWARE?
monkeyDroiid said:
Your best bet is to do an exchange for an AT&T version.
You can Flash the AT&T firmware. But there will be no way in h*** for you to actually enable the Wi-Fi calling feature since they block those IMEI numbers on their servers. YOU HAVE BEEN WARNED. YOU MIGHT NOT BE ABLE TO REVERT IT BACK TO THE OTHER FIRMWARE.
Click to expand...
Click to collapse
This is absolutely not true. I just switched my unlocked S10 (u1) to the ATTfirmware and Wifi calling is working great with no issues turning it on at all.
badbread said:
This is absolutely not true. I just switched my unlocked S10 (u1) to the ATTfirmware and Wifi calling is working great with no issues turning it on at all.
Click to expand...
Click to collapse
That's great to know badbread. Did you use the link https://forum.xda-developers.com/galaxy-s10/how-to/s10e-g973u-g973u1-firmware-links-t3905852 for the firmware files.
I haven't attempted this before so I thought I'd ask before screwing anything up.
Thanks.
mamartin9 said:
That's great to know badbread. Did you use the link https://forum.xda-developers.com/galaxy-s10/how-to/s10e-g973u-g973u1-firmware-links-t3905852 for the firmware files.
I haven't attempted this before so I thought I'd ask before screwing anything up.
Thanks.
Click to expand...
Click to collapse
Yes, that post and a couple others. Pretty painless process TBH.
I can confirm Wifi calling works, HD voice and a WAY WAY WAY better signal. Prior to flashing to ATT I could barely use my phone on my subway ride home... Now it works very well the entire trip.
badbread said:
Yes, that post and a couple others. Pretty painless process TBH.
I can confirm Wifi calling works, HD voice and a WAY WAY WAY better signal. Prior to flashing to ATT I could barely use my phone on my subway ride home... Now it works very well the entire trip.
Click to expand...
Click to collapse
I successfully flashed and am now seeing the ATT bloatware but WIFI calling and visual voicemail, etc are saying "OOPS! We can't turn onWi-Fi calling for your account. I'm going to attempt to flash with the clean boot version and see if that changes anything. Did you do anything different or additional to get it up and running. Not sure if it matters but I'm in Southern CA.
Has anyone else been successful in adding wifi calling, hd voice, etc?
I'm using build G973U SF6 with USERDATA_ATT_G973USQU2ASF6.
I'm on a US Unlocked Galaxy 10.
mamartin9 said:
I successfully flashed and am now seeing the ATT bloatware but WIFI calling and visual voicemail, etc are saying "OOPS! We can't turn onWi-Fi calling for your account. I'm going to attempt to flash with the clean boot version and see if that changes anything. Did you do anything different or additional to get it up and running. Not sure if it matters but I'm in Southern CA.
Has anyone else been successful in adding wifi calling, hd voice, etc?
I'm using build G973U SF6 with USERDATA_ATT_G973USQU2ASF6.
I'm on a US Unlocked Galaxy 10.
Click to expand...
Click to collapse
I'm away from the computer I did it on but I used the SAT1 firmware file and then manually updated all the way back up to the June update.
The updating part is/was a major PITA as it wiped the device each time. I'm hoping i'll get OTA's when they are released. Time will tell.
I'm in the Bay Area on ATT and it activated right away on the base february firmware I installed initially. Also I don't think I did any userdata stuff as I don't remember choosing it... I'll update this post tonight when I can check all the files I d/loaded on my machine at home.
Couple other things:
I can't find it right now but I followed a post that stated to make sure the SIM and SD card were removed during the flashing process. Not sure if that makes a difference.
badbread said:
Yes, that post and a couple others. Pretty painless process TBH.
I can confirm Wifi calling works, HD voice and a WAY WAY WAY better signal. Prior to flashing to ATT I could barely use my phone on my subway ride home... Now it works very well the entire trip.
Click to expand...
Click to collapse
did you ever run the unlocked firmware on ATT or did you flash to att before ever using an active sim? i had heard some speculation that once you run an unlocked phone, then it gets registered as "non att"... keep in mind this is 3rd hand info and hearsay.
edit. i guess i failed to read you short post... i see "prior to flashing" spelled out for me right there....
badbread said:
I'm away from the computer I did it on but I used the SAT1 firmware file and then manually updated all the way back up to the June update.
The updating part is/was a major PITA as it wiped the device each time. I'm hoping i'll get OTA's when they are released. Time will tell.
I'm in the Bay Area on ATT and it activated right away on the base february firmware I installed initially. Also I don't think I did any userdata stuff as I don't remember choosing it... I'll update this post tonight when I can check all the files I d/loaded on my machine at home.
Couple other things:
I can't find it right now but I followed a post that stated to make sure the SIM and SD card were removed during the flashing process. Not sure if that makes a difference.
Click to expand...
Click to collapse
Any chance you found those other posts you mentioned above? I continue to be unable to get wifi calling on my phone.
By the way for anyone else, while I did not get wifi calling, visual voicemail, etc. I do see an improvement on my cell reception over the ATT network.
Ops sorry, thought I replied.
Here it is:
https://forum.xda-developers.com/showpost.php?p=79156802&postcount=5
I followed those steps exactly.
Hi All, I'm trying to make my T-Mobile Note 9 work on AT&T. Using odin I put on the latest ATT version on my phone that I could find -- N960USQU1ARG6. It boots and works fine, but it shows Android 8.1, I don't get wifi calling or there's no place to turn on VOLTE, and when I say update software it says "software up to date." So, I'm assuming that ATT still doesn't think this is their phone.
Any ideas on how to fix this?
Thanks!
Nasty64 said:
Hi All, I'm trying to make my T-Mobile Note 9 work on AT&T. Using odin I put on the latest ATT version on my phone that I could find -- N960USQU1ARG6. It boots and works fine, but it shows Android 8.1, I don't get wifi calling or there's no place to turn on VOLTE, and when I say update software it says "software up to date." So, I'm assuming that ATT still doesn't think this is their phone.
Any ideas on how to fix this?
Thanks!
Click to expand...
Click to collapse
Att has Pie firmware for the Note 9. Just do a search for the newest Pue update and flash it using Odin.
Jammol said:
Att has Pie firmware for the Note 9. Just do a search for the newest Pue update and flash it using Odin.
Click to expand...
Click to collapse
Thanks for the response. That will fix the Wifi calling and VoLTE too?
Nasty64 said:
Thanks for the response. That will fix the Wifi calling and VoLTE too?
Click to expand...
Click to collapse
That I do not know for sure. It doesn't hurt to try though.
Jammol said:
That I do not know for sure. It doesn't hurt to try though.
Click to expand...
Click to collapse
Well, it might. I'd really like to understand what's wrong with it before I flash more.
Nasty64 said:
Well, it might. I'd really like to understand what's wrong with it before I flash more.
Click to expand...
Click to collapse
Well the first thing you could do is do a factory reset, or verify with At&t if it's a feature on your account. Not sure how theirs is setup compared to T-Mobile's Wi-Fi calling. It won't hurt to flash unless you've got stuff you need to backup and have no way to do so.
I don't think anything is wrong with your device. All of the N960U devices are the exact same. The only difference is the software. You don't even need to flash a different firmware for it to put the carrier bloat on the device based on the sim card inserted. It's already included in the Software package on the device, just dormant.
I can't see AT&T Mobility (or any carrier, really) willingly remaining in the trailing position vs. the UnCarrier (who has offered Wi-Fi Calling as a feature (even to their MVNO customers) for over a year - yes, I have had it that long personally) - the only time I don't use it is due to support of the *router* being iffy (some residential routers have issues with Voice over Wi-Fi; the same applies to some business routers).
I went to ATT as well and it took some time for me to see the update to 9. Not sure, when I was with T-Mobile it always showed updates right away. For ATT, I was able to find the ARJA firmware with a CSA7 update that expedited the process. It also took around a day for wifi calling to show up. ATT is just slow to enable things perhaps?
I have had a Galaxy Note 9 (SMN960U) that is AT&T unlocked for the past couple years. I only used a T-Mobile SIM since I am in a Family Plan and have not been able to update the phone at all since 2018. I've contacted both Samsung support as well as AT&T support and they told me that they would need to lock the phone back to AT&T for the updates to be installed. Is there anyone who has had this issue before and can help me update the phone to Android Pie? I've read some possible solutions is to insert an AT&T SIM into the phone or flash an unlocked firmware version but I'm not familiar with either. Please reply as soon as possible for anyone that can offer assistance.
Instead of writing a long how to, go to YouTube and search flashing firmware with Odin
Sent from my SM-N986U using Tapatalk
butchieboy said:
Instead of writing a long how to, go to YouTube and search flashing firmware with Odin
Sent from my SM-N986U using Tapatalk
Click to expand...
Click to collapse
Do you know by any chance if inserting an AT&T SIM will allow me to update the phone then reinsert my T-Mobile SIM?
I can't speak for AT&T, but I can say that the inverse works. I had an unlocked Note9 that I moved from T-Mobile to AT&T, and could no longer receive updates. I inserted an active T-Mobile SIM, rebooted, and was immediately able to update. It had to be an active T-Mobile SIM, or the switch wouldn't work. I just did it right now, so could work for you. It's a lot easier than trying to flash firmware.
circlecircletriangle said:
I can't speak for AT&T, but I can say that the inverse works. I had an unlocked Note9 that I moved from T-Mobile to AT&T, and could no longer receive updates. I inserted an active T-Mobile SIM, rebooted, and was immediately able to update. It had to be an active T-Mobile SIM, or the switch wouldn't work. I just did it right now, so could work for you. It's a lot easier than trying to flash firmware.
Click to expand...
Click to collapse
Do you have any idea if ordering a prepaid AT&T SIM and activating it would also help receive the updates on the phone?
KingAirman said:
Do you have any idea if ordering a prepaid AT&T SIM and activating it would also help receive the updates on the phone?
Click to expand...
Click to collapse
I would assume it would work if that SIM has service, both of the SIMs I used were prepaid. You'll know if it recognized the SIM, as after the reboot it'll show the AT&T splash on startup. If it doesn't, then the current state of the AT&T SIM won't work. That happened to me, I first tried a T-Mobile SIM whose service had lapsed.
If you do update, just make sure to keep going through the update process repeatedly. You have to install an update, let it reboot, and check for updates each time. You can't just jump directly to the latest version, which I think is part of the problem.
circlecircletriangle said:
I would assume it would work if that SIM has service, both of the SIMs I used were prepaid. You'll know if it recognized the SIM, as after the reboot it'll show the AT&T splash on startup. If it doesn't, then the current state of the AT&T SIM won't work. That happened to me, I first tried a T-Mobile SIM whose service had lapsed.
If you do update, just make sure to keep going through the update process repeatedly. You have to install an update, let it reboot, and check for updates each time. You can't just jump directly to the latest version, which I think is part of the problem.
Click to expand...
Click to collapse
Yup just inserted a prepaid SIM, activated it, and now going through the several updates I have missed in the past 2 years lol. Thanks for the assistance.
I appear to be in one of those samsung lock horror stories. I purchased a paid off verizon s21 ultra that was suppose to be unlocked but after i put my tmobile sim into it works for 5 minutes perfectly then an error pops up saying unable to change carrier call verizon customer support. So i did long story short i got no where. So i filed an FCC complaint and got in contact with a verizon executive and he got in contact with who i bought the phone from and they provided all the paperwork proving it was paid off and he reprocessed the unlock request and said it will now for sure be unlocked and it didnt unlock so i contacted samsung like he said for me to do if it didnt so i did and they told me to wait 48 hours for it to process. 48 hours later guess what its still not unlocked so i call samsung back and they said verizon still hasnt released it supposedly and there is nothing they can do and i need to go back to verizon. Im stuck in an endless loop of verizon executives telling me to call samsung and samsung telling me to call verizon.
What is there left for me to do now? This is stupid why is it not unlocking... The only thing that i can think is left is that the phone is flashed with stock firmware and not verizon firmware to remove the bloatware. But that seems like it shouldnt matter. Also the phone never asks for an unlock code it just says call verizon customer service.
It's more a Verizon lock horror, not Samsung.
Flashing other FW won't solve your issue.
OnnoJ said:
It's more a Verizon lock horror, not Samsung.
Flashing other FW won't solve your issue.
Click to expand...
Click to collapse
Any other tips you have?
Return to seller and demand refund...
DodgeTransmissionsGoBoom said:
I appear to be in one of those samsung lock horror stories. I purchased a paid off verizon s21 ultra that was suppose to be unlocked but after i put my tmobile sim into it works for 5 minutes perfectly then an error pops up saying unable to change carrier call verizon customer support. So i did long story short i got no where. So i filed an FCC complaint and got in contact with a verizon executive and he got in contact with who i bought the phone from and they provided all the paperwork proving it was paid off and he reprocessed the unlock request and said it will now for sure be unlocked and it didnt unlock so i contacted samsung like he said for me to do if it didnt so i did and they told me to wait 48 hours for it to process. 48 hours later guess what its still not unlocked so i call samsung back and they said verizon still hasnt released it supposedly and there is nothing they can do and i need to go back to verizon. Im stuck in an endless loop of verizon executives telling me to call samsung and samsung telling me to call verizon.
What is there left for me to do now? This is stupid why is it not unlocking... The only thing that i can think is left is that the phone is flashed with stock firmware and not verizon firmware to remove the bloatware. But that seems like it shouldnt matter. Also the phone never asks for an unlock code it just says call verizon customer service.
Click to expand...
Click to collapse
First, did you verify that the unit is paid off?
Second, do you know anyone that has verizon?
Don't know if it will work, but I would try flashing the unit back to stock Verizon firmware and finding someone who has a verizon sim card.
Verizon units kind of unlock on their own. It is troubleshooting I would try because I do not believe the unit will unlock on U1 software on its own. Once it can get unlocked then flash back.
I suggest someone who has a verizon active SIM as it may help in it unlocking even though you can connect through WIFI
yygemmi770 said:
First, did you verify that the unit is paid off?
Second, do you know anyone that has verizon?
Don't know if it will work, but I would try flashing the unit back to stock Verizon firmware and finding someone who has a verizon sim card.
Verizon units kind of unlock on their own. It is troubleshooting I would try because I do not believe the unit will unlock on U1 software on its own. Once it can get unlocked then flash back.
I suggest someone who has a verizon active SIM as it may help in it unlocking even though you can connect through WIFI
Click to expand...
Click to collapse
The verizon executative said it was guaranteed paid off and he unlocked it remotely again. But it does have u1 firmware on it im guessing i need to use frija and download the vzw firmware? And will another unlock request need to be processed again? And none of my friends have verizon due to how much of a ripoff they are lmao but i can have another verizon demo sim put in at another verizon store. I feel like i would have to file anpther fcc complaint just to talk to another verizon executive.
DodgeTransmissionsGoBoom said:
The verizon executative said it was guaranteed paid off and he unlocked it remotely again. But it does have u1 firmware on it im guessing i need to use frija and download the vzw firmware? And will another unlock request need to be processed again? And none of my friends have verizon due to how much of a ripoff they are lmao but i can have another verizon demo sim put in at another verizon store. I feel like i would have to file anpther fcc complaint just to talk to another verizon executive.
Click to expand...
Click to collapse
I believe for it to be unlocked or at least go through the process, the verizon U package is what I would flash, but you may be in a little bit of a issue if you don't have a verizon SIM on hand, even if not activated.
There are multiple ways to get it to flash back to U. I would use a patched ODIN and just flash the appropriate files from somewhere like samfw.com
If he sent out the remote unlock, it is very possible that once you flash back to U verizon package and connect to WIFI and go through the setup process etc. It may just unlock on its own. If you do not have a Verizon SIM card, leave your SIM out of the phone while going through the initial setup. You will need WIFI.
I would start with a clean flash just to be safe.
yygemmi770 said:
I believe for it to be unlocked or at least go through the process, the verizon U package is what I would flash, but you may be in a little bit of a issue if you don't have a verizon SIM on hand, even if not activated.
There are multiple ways to get it to flash back to U. I would use a patched ODIN and just flash the appropriate files from somewhere like samfw.com
If he sent out the remote unlock, it is very possible that once you flash back to U verizon package and connect to WIFI and go through the setup process etc. It may just unlock on its own. If you do not have a Verizon SIM card, leave your SIM out of the phone while going through the initial setup. You will need WIFI.
I would start with a clean flash just to be safe.
Click to expand...
Click to collapse
What's a patched Odin? I've only used regular Odin can you send a link to the patched one?
VERIZON FIRMWARE FLASHING UNLOCKED IT!!!!!!!!!!!!!!!!
DodgeTransmissionsGoBoom said:
VERIZON FIRMWARE FLASHING UNLOCKED IT!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
BAM!!!!! Glad it worked! I work with phones all day long and that was the protocol I would have used glad it worked out!
DodgeTransmissionsGoBoom said:
VERIZON FIRMWARE FLASHING UNLOCKED IT!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
Hello, I have encountered the same problem. Can you tell me the solution to this problem?
chen2luqi said:
Hello, I have encountered the same problem. Can you tell me the solution to this problem?
Click to expand...
Click to collapse
You literally quoted the answer
Verizon firmware has an app called "Network Unlock". Perhaps at the 60 day mark, the phone automatically unlocks. However, if on the unlocked U1 firmware, there is no framework to remove the lock. It'd be interesting to see exactly how the Verizon unlock process works.
Guyinlaca said:
Verizon firmware has an app called "Network Unlock". Perhaps at the 60 day mark, the phone automatically unlocks. However, if on the unlocked U1 firmware, there is no framework to remove the lock. It'd be interesting to see exactly how the Verizon unlock process works.
Click to expand...
Click to collapse
It is somehow tied into their U package software and I am assuming unlocks it at the modem level in background processes. It's like the "signal" they send out can only be detected on their U package. I've seen it many times where Verizon phones automatically unlock themselves when restored to original package from U1.
yygemmi770 said:
It is somehow tied into their U package software and I am assuming unlocks it at the modem level in background processes. It's like the "signal" they send out can only be detected on their U package. I've seen it many times where Verizon phones automatically unlock themselves when restored to original package from U1.
Click to expand...
Click to collapse
I can confirm this works on my s21+ that was on verizon network, and was supposedly networked unlocked. Service carrier software said vzw/vzw, vzw/vzw. Tried to switch to tmobile with no luck with sim card swap. 5 minutes, error message about cannot which carriers, please call Verizon. Was on SM-996U1. So I tried to flash to SM-996U1 TMB, then SM-996U1 VZW, then, SM-996U1 XAA. No luck. Then I flashed, hesitantly, with SM-996U VZW . I thought that would put all verizons bloatware on it. Reseted phone and it did put all verizon bloatware on it. Then the magic! I installed my new tmobile sim, and a message appeared and asked if I wished to switch carriers. YES!!! phone rebooted to tmobiles network with no verizon errors. I checked service carrier software and it was TMB/TMB, VZW/VZW. I flashed phone again to SM-996U1 XAA. I rebooted and service carrier software was TMB/TMB, TMB/VZW! I then checked for software update, took update, and all it good! Thanks for all the information here. Took me days to find it and understand it and try it!!
Hi, folks. I am facing the same issue with my S21 5G (SM-G991U). I am also told that the phone paid off and clean. I am not sure what version I am on currently. I have tried SamKey, but that didn't work. Any help would be appreciated. Thank you in advance.
hoorrus said:
Hi, folks. I am facing the same issue with my S21 5G (SM-G991U). I am also told that the phone paid off and clean. I am not sure what version I am on currently. I have tried SamKey, but that didn't work. Any help would be appreciated. Thank you in advance.
Click to expand...
Click to collapse
Does your device boot up Verizon and have all the Verizon apps?
bigkahuna7660 said:
I can confirm this works on my s21+ that was on verizon network, and was supposedly networked unlocked. Service carrier software said vzw/vzw, vzw/vzw. Tried to switch to tmobile with no luck with sim card swap. 5 minutes, error message about cannot which carriers, please call Verizon. Was on SM-996U1. So I tried to flash to SM-996U1 TMB, then SM-996U1 VZW, then, SM-996U1 XAA. No luck. Then I flashed, hesitantly, with SM-996U VZW . I thought that would put all verizons bloatware on it. Reseted phone and it did put all verizon bloatware on it. Then the magic! I installed my new tmobile sim, and a message appeared and asked if I wished to switch carriers. YES!!! phone rebooted to tmobiles network with no verizon errors. I checked service carrier software and it was TMB/TMB, VZW/VZW. I flashed phone again to SM-996U1 XAA. I rebooted and service carrier software was TMB/TMB, TMB/VZW! I then checked for software update, took update, and all it good! Thanks for all the information here. Took me days to find it and understand it and try it!!
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From my experience, Verizon phones will not unlock unless on the U package, the U1 never allows the unlock to be processed.
yygemmi770 said:
Does your device boot up Verizon and have all the Verizon apps?
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It does not boot up with Verizon but it does have a few Verizon apps included (it has Call Filter and Digital Secure) installed. The current version of the software is G991USQS6EWD5. Service provider version is SQOMC_SM-G991U_OYN_SPR_13_0020 SPR/SPR,SPR/VZW.
hoorrus said:
It does not boot up with Verizon but it does have a few Verizon apps included (it has Call Filter and Digital Secure) installed. The current version of the software is G991USQS6EWD5. Service provider version is SQOMC_SM-G991U_OYN_SPR_13_0020 SPR/SPR,SPR/VZW.
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Are you using this phone with Verizon service? From info you provided, your phone thinks you are using Sprint. It's a SPR CSC. You need to change the CSC to VZW. You need to bring the phone back to it's original state for any attempt of the unlock "processing".
I recently bought an unlocked Galaxy S10 SM-G973U on Amazon. Got new SIM card from a Verizon MVNO and activated phone. The phone downloaded Android 12, One UI version 4.0. Firmware Build number SP1A210812.016.G973USQS6HVA1. Service provide Software version SAOMC_SM-G973U_OYN_SPR_12_0007 SPR/XAA/VZW. The problem is there is no menu option to activate/switch on VoLTE which means when I'm on a call there is no internet. I've talked to the MVNO tech support multiple times and was told they couldn't see any problems on their side, or that the SM-G973U does not support VoLTE which is not true. I found on one of AT&T's sites that the SM-G973U needs a software patch to enable VoLTE. I also found a couple of USSD codes but they either didn't work or didn't get me to the right setup screen to turn on VoLTE. I even stopped by a Samsung store and they weren't any help either. They said they could re-flash a stock firmware but it would revert to being locked to a carrier which is apparently also not true based on what I've read on this forum. Anyone know how I can turn on VoLTE or know of an apk file or software patch to enable VoLTE?? Does one of the firmware versions posted online have the patch to turn on VoLTE??
I think the issue is that your phone is showing SPR/XAA/VZW. You say you're on a verizon MVNO (who, by the way?)... but your phone isn't seeing that. It's actually saying it's active for SPRint. The second one, XAA, means it's not able to detect the SIM type... and the third was that it was originally VZW, which you can't change and isn't really relevant. (That's just what the phone was "born" as).
Bottom line, your phone isn't seeing VZW or an MVNO as the active CSC nor the SIM card. In the past, the easy thing was to change the CSC to what you need, but I haven't found a way to do that actively. What's supposed to happen is that the CSC should update based on the SIM card and cell signal you're getting... but this doesn't always happen. I bought two phones - one switched with no issues, the other I could not get it to change no matter what I tried.
That said, the easiest thing is to clean flash the phone with ODIN to a VZW or your MVNO's ROM, so that (hopefully) the CSC updates automatically. You could also consider flashing a U1 (unlocked) ROM, as yours is not technically an unlocked ROM (U means it's a carrier ROM... which may be why it's not switching over?)
Again, I tried all of these on the second phone I bought, and nothing would switch it (my carrier is Total Wireless, which is a VZ MVNO, and actually shows up as Tracfone (TFN). I had to return that second phone and get another with TFN already activated, and that worked fine... so be sure you do this before you drop out of your return period.
Bottom line, you should be able to get this all working... my VOLTE/VOWIFI works fine... just a matter of getting you there.
Thanks. My carrier is Straight Talk which is now VZ. The SIM card they sent me has the wording "Verizon Compatible" written on it. I finally found a document that explains how to interpret the CSC codes and your explanation clarifies my understanding of it. Sound like I'll have to re-flash it. Since it was originally a VZW phone I'm thinking I should flash it back to VZW to see if that works before trying U1.
Dumb question as this is my first time flashing a phone. (I've flashed quite a few other things but never had to worry about CSC codes and bootloader versions, etc.) I don't see VZW firmware on samfirms or sammobile. I see Sprint, T-Mobile, and one listed as USA without carrier info but I don't see one for VZW. Can someone point me to the correct location to download SM-g973U and U1 firmware for VZW? Greatly appreciated and thanks for putting up with my lack of knowledge!
Edited: Found the files on sammobile. Will try the U1 (VZW) first. I'll keep my fingers crossed.
schwinn8 said:
I think the issue is that your phone is showing SPR/XAA/VZW. You say you're on a verizon MVNO (who, by the way?)... but your phone isn't seeing that. It's actually saying it's active for SPRint. The second one, XAA, means it's not able to detect the SIM type... and the third was that it was originally VZW, which you can't change and isn't really relevant. (That's just what the phone was "born" as).
Bottom line, your phone isn't seeing VZW or an MVNO as the active CSC nor the SIM card. In the past, the easy thing was to change the CSC to what you need, but I haven't found a way to do that actively. What's supposed to happen is that the CSC should update based on the SIM card and cell signal you're getting... but this doesn't always happen. I bought two phones - one switched with no issues, the other I could not get it to change no matter what I tried.
That said, the easiest thing is to clean flash the phone with ODIN to a VZW or your MVNO's ROM, so that (hopefully) the CSC updates automatically. You could also consider flashing a U1 (unlocked) ROM, as yours is not technically an unlocked ROM (U means it's a carrier ROM... which may be why it's not switching over?)
Again, I tried all of these on the second phone I bought, and nothing would switch it (my carrier is Total Wireless, which is a VZ MVNO, and actually shows up as Tracfone (TFN). I had to return that second phone and get another with TFN already activated, and that worked fine... so be sure you do this before you drop out of your return period.
Bottom line, you should be able to get this all working... my VOLTE/VOWIFI works fine... just a matter of getting you there.
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Success! Was able to flash U1. VoLTE is now working. The CSC now shows TFN/TFN/VZW. Much appreciated!!!
Awesome, glad to hear that fixed it easily!
And TFN... I'm a fan there, too!
Hi! I'm having a similar issue with the same model and happy to see someone was able to enable VoLTE. However, most of what you said above is a foreign language to me. Would one of you be willing to give me a crash course in what you did?
Here's my specific situation. Last week (~1/4/23) Tracfone shutdown 3G. My Samsung Galaxy S10 (SM-G973U) says my network is set to LTE/3G/2G. I've read LTE is 4G, but still can't make or receive calls/texts, but data and 911 calls still work. Their tech support is no help.
From reading online it sounds like I may need VoLTE, not just LTE. Hence finding this thread. If one of you would be willing to spare some time to walk me through what you did I'd really appreciate it. In the mean time I'll try to figure out what "flashing" mean in a context that doesn't involve showing body parts
Thank you in advance!!
I'm on Tracfone (they were bought out by Verizon, BTW) - I was on Total Wireless before, which is now Total by Verizon. You might try contacting support again, as they are now VZ, and may have more help to offer.
My S10+ is running 975U1 now, and it works for VOLTE/VOWIFI properly. You may consider getting a U1 ROM installed, and maybe even the VZW (or TFN) version if available - that may get you working.
Did VOLTE ever work for you before on this or any other carrier? What is your CSC right now?
schwinn8 said:
I'm on Tracfone (they were bought out by Verizon, BTW) - I was on Total Wireless before, which is now Total by Verizon. You might try contacting support again, as they are now VZ, and may have more help to offer.
My S10+ is running 975U1 now, and it works for VOLTE/VOWIFI properly. You may consider getting a U1 ROM installed, and maybe even the VZW (or TFN) version if available - that may get you working.
Did VOLTE ever work for you before on this or any other carrier? What is your CSC right now?
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Thanks for replying! I'm not entirely sure if VoLTE has worked previously. I bought this phone 6/2021 and have only haver had tracfone service for it. I did find in my setting that VoLTE calling is set to on so it seems like it should work. Of note, the 4Glte in my status bar has always been grayed out (I went back and looked at some old screenshots).
My current CSC is VZW/XAA/ATT.
I spoke with tracfone customer service yesterday and they had me reset my network setting and now I don't even have data and the 4Glte in my status bar that was previously gray has now completely disappeared.
Their customer service refuses to talk to me now (literally no one answers when it transfers to an agent) or they hang up on me, and no I haven't been rude, but I have told them I'm recording the call.
I bought a mint mobile package last night because I'm beyond frustrated with Tracfone. I'm worried I'll have the same problems with Mint. I'm not sure if my settings are screwed up or if it's just Tracfone. In any case things are worse now after talking to customer service yesterday.
I also notice there was no APN setting on my phone so I updated it today and restarted but no difference.
Thanks for any input!! Much appreciated. Sorry for the novel.
Ok, so based on your CSC, the phone is not seeing the SIM's carrier - it's showing XAA which means it's using the default settings, which is probably why your not getting VOLTE. The active CSC of "VZW" may be ok... depends on which carrier you're on with Tracfone. I think they're VZW only, but I'm not completely sure.
You may want to just get a new SIM card and get that activated. HOWEVER, the problem you'll likely face is that the phone was born ATT (last CSC). This means the IMEI won't match a "compatible" phone to Verizon, and they will flat out refuse to activate it (even though WE al know it will work fine). If you still want to do that, you will have to activate the new SIM on a VZ "compatible" phone, then you can swap it to the S10. Note that VZ complains about this when you talk to them... so don't tell them you're doing this... but I've done it many times and it works fine.
If your actual behind-the-scenes carrier is ATT, then you can do the activation with your phone without issue.
If none of this works for you, you can switch carriers to an ATT MVNO and you should be good to go.
schwinn8 said:
Ok, so based on your CSC, the phone is not seeing the SIM's carrier - it's showing XAA which means it's using the default settings, which is probably why your not getting VOLTE. The active CSC of "VZW" may be ok... depends on which carrier you're on with Tracfone. I think they're VZW only, but I'm not completely sure.
You may want to just get a new SIM card and get that activated. HOWEVER, the problem you'll likely face is that the phone was born ATT (last CSC). This means the IMEI won't match a "compatible" phone to Verizon, and they will flat out refuse to activate it (even though WE al know it will work fine). If you still want to do that, you will have to activate the new SIM on a VZ "compatible" phone, then you can swap it to the S10. Note that VZ complains about this when you talk to them... so don't tell them you're doing this... but I've done it many times and it works fine.
If your actual behind-the-scenes carrier is ATT, then you can do the activation with your phone without issue.
If none of this works for you, you can switch carriers to an ATT MVNO and you should be good to go.
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OK some of that was still over my head. I'll see what happens with the Mint Sim... one f/u question now though. You said the ATT means my phone was "born" ATT. I bought my phone off backmarket and it was sold as "unlocked". Was that not true? How can I be sure in the future if I buy a used phone that's not from my carrier that it will actually be compatible?
Unlocked just means it's not locked to a carrier. That is true in your case, otherwise you wouldn't have been able to install ANY non-ATT SIM. So, you did the right thing to get an unlocked phone, and that is what you got.
The issue with compatibility is just the asshole carriers spreading lies. They do this to try to get people to buy THEIR phones, for no reason other than to make money and confuse consumers. The "born" CSC has no bearing on anything, really... neither does the carrier-specified IMEI. In your case, the XAA is good, which means it's a multi-carrier ROM, which works with all USA carriers.
Mint is a good idea - being an ATT carrier (IIRC), that should work and they should help you get it up and running even if they have to activate it. Good luck!
Awesome! Fingers crossed!! Thank you for your time and all the info❣
I'll try to remember to give an update in a few weeks for future readers
Goldie8709 said:
Awesome! Fingers crossed!! Thank you for your time and all the info❣
I'll try to remember to give an update in a few weeks for future readers
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UPDATE: Switching to Mint worked like a charm! Once my number ported and I put the new SIM card in, service was instantaneous! I've had Mint for 3 weeks now and the service is so much better than with Tracfone! My calls go through nearly as soon as I hit call, the internet is faster.
I didn't need to do a thing either. No making APN settings, etc. I'm betting it has to do with what you said about my phone being born ATT. So funny because the software(?) is Verizon - shows the Verizon when I restart/power up. I still love my bastard phone
So thankful I didn't buy a different phone!!! Again thanks for all your help @schwinn8
Thanks for reporting back and letting us all know, and I'm glad it worked out well!
Yeah, the carriers pull this nonsense all the time... it's BS. The phones are all the same, only the ROM changes. If we can change ROMs (which we can) then there should be no reason to force users to specific IMEIs. But we know why they do this - follow the money. I encourage people to write to the FTC and FCC about this (I have).