yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S9+ Guides, News, & Discussion] :
All of those plus Visual Voicemail, HD Voice, and such will not work because the G965U1 firmware lacks the carrier specific stuff that AT&T uses in G965U model. There is a way to side load the AT&T visual voicemail APK to get at least that working for now. Hopefully Samsung will patch the unlocked firmware but don't hold your breath. I hope that they can make it like they do with a recent update to the S8 firmware in which it will autoload the carrier stuff depending on what SIM is inserted. You could look into flashing the G965U firmware with the AT&T specific stuff onto the G965U1 which is what I'm considering doing.
[Samsung Galaxy S9+ Guides, News, & Discussion] vatchg:
Keep getting error! "Can't Open the serial(COM) Port" Trying to go from ATT to Tmobile version. Maybe I need to go to unlocked version first?
[Samsung Galaxy S9+ Guides, News, & Discussion] nugzo:
THat doesnt work. i've tried it, (the flashing ATT firmware on 965U1) i mean it'll flash, but no ATT features :(
[Samsung Galaxy S9+ Guides, News, & Discussion] :
Hmm. I wonder if we have a incomplete rom? Which one did you flash? I noticed in G965U download folder the RB7 has an additional ATT USERDAT file which I think needs to be included while the RBG does not. However RBG is the newer update. Maybe we need to wait until the official roms are posted to Sammobile. Or is there something I'm missing here. The last time I worked with Odin was on my old S7. I know in the carrier versions of the S8, Samsung added the ability for the firmware to autoload the carrier stuff based on the SIM that what inserted. This essentially made something like a carrier unlocked Verizon S8 amazingly turn into a AT&T S8 when a ATT sim was inserted. Has anyone else with a G965U1 tried flashing the the G965U rom for their specific carrier? If so, what were the Odin steps involved.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
ARBI is the latest not ARBG
[Samsung Galaxy S9+ Guides, News, & Discussion] :
Cool. Good to know there is a newer firmware. Any ideas where to download the firmware for the AT&T version of the G965U? So far I do not see it on Updato or Sammobile.:(
[Samsung Galaxy S9+ Guides, News, & Discussion] iBowToAndroid:
It's literally in the OP....
[Samsung Galaxy S9+ Guides, News, & Discussion] ednometry:
Video calling is there... no issues here.
[Samsung Galaxy S9+ Guides, News, & Discussion] wolfgart:
RBI for G965U1 is live ?
[Samsung Galaxy S9+ Guides, News, & Discussion] iBowToAndroid:
No, I didn't say that. My post was in regards to someone asking about AT&T firmware for G965U. Nothing to do with G965U1
[Samsung Galaxy S9+ Guides, News, & Discussion] DLD23:
I have visual voicemail working just fine
[Samsung Galaxy S9+ Guides, News, & Discussion] mc_365:
So you are saying You have a US Snapdragon factory unlocked unbranded S9, with a Verizon SIM card inserted, and you are able to place video calls? directly from the dialer without any additional app like Duo or Skype?
[Samsung Galaxy S9+ Guides, News, & Discussion] ednometry:
Don't know why you are having such a hard time believing but yes that is exactly what I am telling you...
[Samsung Galaxy S9+ Guides, News, & Discussion] mc_365:
Having a hard time because you are the first and only one to ever say this.
[Samsung Galaxy S9+ Guides, News, & Discussion] ednometry:
No I'm not... Even in this thread... Why don't you just flash the firmware and find out for yourself... It was easy once I got the new Odin (older versions can't flash Oreo firmware looks like). My phone now boots to a Verizon logo after Sammy's Knox screen and animation. I have ALL carrier features and had very little bloat to remove. My phone is great and I got the best deal on the market for it.

Btw after looking at the video calling feature offered by the firmware I don't see why it is sought after. It's implemented in the most hamstrung way as you can only make video calls from one Android to another on Verizon. It doesn't work across carriers or with iPhones. Duo and every other option is generally superior imho. But it works...
[Samsung Galaxy S9+ Guides, News, & Discussion] mc_365:
I have been active in this forum since the release of the phone, I along with every other I read in this forum have had the same experience when flashed the VZW firmware. Please point me to where it has been documented I'd be very thankful.

Video calling is an interest to me because I have elderly parents on my phone plan who don't know how to use apps to make video calls so I would be able to place or receive a video call to or from them with very little fuss.
[Samsung Galaxy S9+ Guides, News, & Discussion] ednometry:
That guy...

---------- Post added at 08:42 PM ---------- Previous post was at 08:38 PM ----------

That guy has also done it...

Duo is pretty straight forward to use and set up, might want to try and teach em a new trick. I had to do the same with my folks, they still call everything FaceTime lol.
[Samsung Galaxy S9+ Guides, News, & Discussion] mc_365:
Yes I asked him specifically about video since he didn't explicitly say it was working. He never responded. I have been able to get WiFi calling, Visual Voice, and HD Voice all operable, Video Calling is present but uselectable for activation on the phone.
[Samsung Galaxy S9+ Guides, News, & Discussion] nugzo:
What carrier? It's time for the mods to break the s9 forum down a little more like the s8. we need a verizon, ATT, T-mobile. etc sections.

---------- Post added at 12:39 AM ---------- Previous post was at 12:28 AM ----------

Where has some one else got video calling to work from the dialer on a U1 (flashed to a U?) you said others have done it, i cant find it. the post you quoted doesnt say he did it. I've flashed U firmware to my U1 and i cant do it either. Like mc_365 said, you're the only one who says they have done it. Why does it only work on your phone i wonder....

---------- Post added at 12:42 AM ---------- Previous post was at 12:39 AM ----------

Havent had a chance, sorry.

---------- Post added at 12:44 AM ---------- Previous post was at 12:42 AM ----------

He was asking about ARBI for ATT, in the op it has the folder, no files in it..
[Samsung Galaxy S9+ Guides, News, & Discussion] CursiveQ:
Hi Guys,

Is there anyway i can do this on a Mac? I can't seem to find the Samsung Drivers for Mac as well as a working Odin for Mac.

Should i use Jodin?

Thanks.
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
ok so I should probably hold off then on flashing it over, don't want to brick it or anything.
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
You're not going to brick it. The worst that can happen in this case is that you'll still see Sprint apps and functionality when you're done.
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
aha ok, so when I to the factory wipe and reset put the tmobile sim in then do the flash with all the files.
[Samsung Galaxy S9+ Guides, News, & Discussion] nowerlater:
Just curious, can you ##brand# with new sim in it and the phone will do the rest?
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
I believe that if there's a chance of flipping CSC, that's what will be required. Since you're backed up and prepared for a factory reset, I would just try that first without flashing anything at all.

Put the TMO SIM in before you reset.
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
ok I will go that route first reset with the tmb sim in and see what comes up before flashing anything
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
Let us know. I've heard it's possible to flip CSC this way, but haven't tried it myself yet. For what it's worth, I'd do the factory reset from recovery, instead of inside the software.
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
will do, do I just use the samsung phone info app to see if the CSC was changed.
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
You'll be able to tell right away. As soon as it boots after reset, you'll be TMO splash, not Sprint.
[Samsung Galaxy S9+ Guides, News, & Discussion] nowerlater:
Cant you just do ##brand# with new sim in the phone and it will do the rest?
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
SPRINT ODIN 3ARG7 https://androidfilehost.com/?fid=3700668719832236886

And TMOBILE ODIN 3ARG7 https://www.androidfilehost.com/?fid=3700668719832240940

Running On My Galaxy S9+ SM-G965U Wicked Venom
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
ok did the factory reset from the recovery menu, with the tmobile sim card and it doesn't automatically change the csc as the sprint splash screen still loads.
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
Then the next thing is to try flashing the TMB firmware linked just above this post. Use CSC, not the HOME_CSC. No promises. It might fail, too.
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
ok flashed the files over and it passed but it didn't change the csc code still shows as SPR but it does remove the sprint splash screen so it worked to some degree. it did add the tmobile visual voicemail app to screen that wasn't there before. and I go back over to sprint firmware by doing the same flash like I did with the tmobile right.
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
Well now wait a second before you do anything. Are you sure you're not just fully converted over now? Who's splash screen did you see booting up? Where exactly are you still seeing SPR? If you're looking at the 3 part code, you might now see something like TMB/TMB/SPR. That's normal. The last part is where you bought the phone and will never change (unless you send it to Samsung and they do certain kinds of service on it).
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
the csc is in the phone info app and just SPR shows up.. there was no splash screen got the starting android screen
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
Go to Settings/About Phone/Software Information. Near the bottom is "Service provider SW ver." What is the bottom line in that section?
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
three SPR's
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
I'm afraid we've gotten you no closer, then. As I feared, it isn't possible to switch without hitting a U1 build in there. Yes, you can use the Sprint firmware linked above to go back. Sorry it didn't work out.
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
no prob, it was worth a shot just will have to wait for the v3 boot on the U1. now if I just get access to the service menu so I can enable all the bands I tried the ##data# but that one is sort of limited and cant see all the LTE bands.
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
Since ARG7 is now out for all carriers, I have to believe U1 won't be far behind. Just be patient. It will get there.
[Samsung Galaxy S9+ Guides, News, & Discussion] stark21:
sounds good thanks for your help though
[Samsung Galaxy S9+ Guides, News, & Discussion] nugzo:
Is there an actual ATT 3ARG7? Did the 3ARG7 odin thats been floating around for a while come from the ATT Server trick? couldn't find an ATT one on samfirm.
[Samsung Galaxy S9+ Guides, News, & Discussion] rmarinella:
Samsung is still just doing quarterly updates on the unlocked phones unless there is a functionality issue. Count on late September.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
I have been looking for 3ARG7 for AT&T as well. Hopefully someone will post it sooner than later.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
For Carriers All Odin Files that Rolled Out For July Patch G965USQU3ARG7 for Each Carrier are here https://xdaforums.com/galaxy-s9-plu...s-firmware-t3829187/post77329928#post77329928
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
Unfortunately, I need the AT&T userdata because I don't have the AT&T SIM card with me that is going in the device. The whole pont for me in flashing it t the AT&T firmware is to get the WiFi Calling working with my girlfriend's SIM until her contract is done and switches over to T-Mobile.
[Samsung Galaxy S9+ Guides, News, & Discussion] todd3835:
If you read the last few pages, it won't do you any good unless you swap to the U1 first. You can't just flash Userdata to swap carrier. You have to wipe, flash U1, install new sim, flash the carrier you want, profit.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
It is already on the U1, which is why I need the userdata.
[Samsung Galaxy S9+ Guides, News, & Discussion] todd3835:
It the ATT userdata for v3 isn't out yet, you could flash he U ATT rom for 2ARC6, then just upgrade to v3 via Ota which is now official.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
I know. I am not in a rush to get it done.
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
T-Mobile has released the 3ARG8 update with August security patch for the S9 Plus.
[Samsung Galaxy S9+ Guides, News, & Discussion] bassman418:
I was on ARG8 and downgraded to ARG7 to go up to ARH1. well worth it. ARH1 has been the smoothest with the best battery life yet.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
That's what my AT&T S9 Plus is on . Before the T-Mobile OTA lol.

Running On My Galaxy S9+ SM-G965U Wicked Venom
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
My Note 9 shipped
[Samsung Galaxy S9+ Guides, News, & Discussion] bassman418:
Yep, same here.
[Samsung Galaxy S9+ Guides, News, & Discussion] xnightriderx:
Trouble Flashing US Cellular S9+ for Tmobile

Sup all -- This forum and thread are super helpful. I tried flashing my US Cellular S9+ straight from Samsung, which I understand is unlocked, so I could use my T-mobile SIM and more importantly the bands + Wifi-calling... everything looked like it worked but not as expected. Here are the steps and where I'm at:

- Downloaded G965USQU3ARG7_T-Mobile.zip

- Downloaded ODIN and all drivers

- Flashed all files except for USERDATA ( dont think it was in the download zip)

- Rebooted and I now have G965USQU3ARG7 as the firmware BUT US Cellular splash screen and NO VoLTE or Wifi-calling -- looks like US cellular UI as well.

My goal is to have TMobile firmware to utilize Wifi-calling, VoLTE, all supported bands.

I'm new at this so any instruction is helpful. Thanks!
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
Did you fully wipe the device first before even attempting to flash? Did you flash to U1 before flashing the T-Mobile firmware? You need to flash the userdata to get rid of the US Cellular boot animation and have it replaced with the T-Mobile one.
[Samsung Galaxy S9+ Guides, News, & Discussion] kdubz:
I didn't even setup the device so assume it was wiped but i will wipe. Just to be sure , wipe means factory reset, right?

Didn't do U1 before TMobile. Is that the proper first step? U1 then the TMobile U?
[Samsung Galaxy S9+ Guides, News, & Discussion] todd3835:
Your out of luck until there's a v3 rom for U1. You need to wipe, flash the U1 with the TMobile sim in, then flash to the TMobile U rom.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
As the post above mentioned. Being on the bootloader v3 now means you are stuck on that until the v3 version of U1 comes out. When you directly flashed the T-Mobile firmware over your US Cellular firmware, it gets treated like a firmware update and not a flash over. That is why you are on the v3 bootloader but still have all of the US Cellular stuff still.
[Samsung Galaxy S9+ Guides, News, & Discussion] xnightriderx:
I see -- also read this in another thread but appreciate you guys giving me the info. I'll wait for the v3 then give it another go.
[Samsung Galaxy S9+ Guides, News, & Discussion] NotATreoFan:
Me as well. Tonight will be busy. Setting up my Note 9, and my brother's Essential Phone he got for $223 on Amazon the other day.
[Samsung Galaxy S9+ Guides, News, & Discussion] valsivief:
Hi guys ,

I'am facing an issue in my samsung galaxy s9 plus SM-G965U T-mobile keep rebooting but is not like usuall reboot is stays on soon as you lock the screen the phone get reboot by it self or just turne off .

I wiped the memorie cashe, after that i did the full reset and i flashed official AG7 by Odin and after 1 day is start happen again

I boot up by recovery and i kept my phone On ,my phone stays On more than 3 hs , that is telling me that is firmeware issue not a hardware prb

Do you know any stable firmeware pls ?

Thanks in advance
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
If you flashed 3ARG7, then you are stuck on the v3 bootloader. Your only options would be to update via OTA to 3ARG8 or see if there is an ODIN image for it and flash that to see if it solves your issue. There is a small possibility you did flash a firmware that was somehow corrupted. Try downloading it again and potentially from a different source to see if that might help with a reflash.
[Samsung Galaxy S9+ Guides, News, & Discussion] valsivief:
I already update it to ARG8 but no lock
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
Did you attempt a factory reset yet? Try that, too. Obviously make a smart switch backup first.
[Samsung Galaxy S9+ Guides, News, & Discussion] Cyclone Emperor:
My phone was doing the same thing about a month ago but it randomly stopped. I updated to 3ARH1 and haven't had any issues since
[Samsung Galaxy S9+ Guides, News, & Discussion] valsivief:
I didn't get ARH1 yet but i m gonna search online

---------- Post added at 01:48 PM ---------- Previous post was at 01:47 PM ----------

Yes , i tried that too without luck
[Samsung Galaxy S9+ Guides, News, & Discussion] MrMaverick03:
Service Provider SW Question

Hi All,

I was able to take a VZW Samsung S9+ and flash the U1 (RB7) firmware. From there I was able to flash the RB7 (U) firmware with ATT userdata with success. After flashing the ATT userdata, I was able to successfully receive the first OTA from ATT.

The only features I am missing are VoLTE and Wi-Fi Calling, which AT&T says it is in the process of restoring (IMEI provisioning issue). All of that being said, when I open my software info page I see this for the Service Provider SW field. (See Below)

Service Provider SW Ver.

SAOMC_SMG965U_OYN_ATT_OO_0075

4355525141313098

ATT/ATT/VZW

Does anyone know why that last field still says Verizon? Currently there is no trace of Verizon on the phone (i.e. no boot logo, apps, etc.) so I am not sure if this is affecting the LTE service or not.
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
That will never go away. It's a product sales code. Just means it was bought at VZW.
[Samsung Galaxy S9+ Guides, News, & Discussion] valsivief:
I had done the 3ARH1 by Adb, but is still doing the same thing
[Samsung Galaxy S9+ Guides, News, & Discussion] Psyscope:
Do you have the required WiFi Apps?

UnifiedWFC

NSDSWebApp

WFCServiceV2

Vsimservice

?
[Samsung Galaxy S9+ Guides, News, & Discussion] MrMaverick03:
I don't see them in the system or user apps. Where would I get them?
[Samsung Galaxy S9+ Guides, News, & Discussion] Psyscope:
What phone does ATT think you have in the system?

It needs to be an ATT branded wifi calling phone I.E. S7, s8, S9 or note 7-9

Try this with your sim card in the phone do another Odin. Possibly the first flash took you from VZW to ATT. Now you need to flash again to make sure you have the required ATT files.
[Samsung Galaxy S9+ Guides, News, & Discussion] MrMaverick03:
To give you more detail, the phone works fine as far as service goes. I can browse the web on LTE and have gotten up to 90Mbps download in some areas. Even SMS is working fine. The only issue I am having is VoLTE, and Wi-Fi calling are not working (they fail to provision).

I got on a chat with AT&T yesterday and they said that my IMEI was assigned to Verizon (since the phone was purchased from Verizon). They "escalated" my ticket after telling them that I had flashed the AT&T firmware, and even had completed an OTA update from AT&T (the phone allowed me to update via OTA from 2ARF4 to 3ARG7, so I assumed the necessary AT&T stuff was there).

Currently I am waiting on an email from AT&T to notify me that the IMEI has been registered in their database. Once that has been completed, they told me I should be able to provision my phone for those services.

That being said, if they tell me my IMEI has been added but I still cannot use those services, I will go ahead and re-flash. . If not, I will have to wait until someone posts the files for 3ARG7 (or higher since I am on V3 of the bootloader) to reflash. When I do reflash, should I include the AT&T USERDATA file along with the other four?
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
The thing is, they won't tell you your IMEI has been added. AT&T participates in this practice to basically punish their customers that don't buy devices from them. You will need to get another phone that is on their WiFi Calling list that was sold by them, add it to your line so it shows up on your bill, and then just swap the SIM into your S9 Plus. Then it will work.
[Samsung Galaxy S9+ Guides, News, & Discussion] MrMaverick03:
So an office mate has an S9 on AT&T. What your saying is I can put my SIM in his phone, activate Wi-Fi calling (to trick my account) and then put my SIM back in my phone and I will be able to take advantage of those services again?

Edit: Went ahead and tried it, and it worked successfully. I was able to take an OTA, activate Wi-Fi calling, and make a call with 4G LTE service still connected. Thanks everyone for the help getting this resolved.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
Yep! Glad you got it working!
[Samsung Galaxy S9+ Guides, News, & Discussion] Psyscope:
Great to hear that. I hate how ATT makes it so difficult to get what we are paying them for.
[Samsung Galaxy S9+ Guides, News, & Discussion] yoyo711:
Hey bootloader v3 for G965U1 Firmware ???????

Thanks
[Samsung Galaxy S9+ Guides, News, & Discussion] CrazyApe18:
Not that I've heard about.
[Samsung Galaxy S9+ Guides, News, & Discussion] yoyo711:
Thanks any ETA???
[Samsung Galaxy S9+ Guides, News, & Discussion] nugzo:
[MENTION=5117143]MrMaverick03[/MENTION]

So if i get you correctly you dont have to call ATT and give them a sim from another ATT phone that supports those services? It's as easy as just putting your sim in an ATT branded phone and then putting it back in your unlocked U1 with the ATT firmware and Volte , wifi calling, caller id starts working? Me and many others have called ATT to do this. your method is so much easier if that's all you have to do. Great find!! I'd add it to the many other threads floating around here about making those features work on u1. Your post is a little unclear on if you had to call them though.

[MENTION=3116388]jcsww[/MENTION] mentions you do have to call to add a device (IMEI i assume) to your line so it shows on your bill. I had to do similar. My s8 was an ATT branded phone and all those features were working. When i got my s9 from Samsung and added the sim from s8 as well as installing ATT firmware i didnt have any of those features. I had to call ATT with a story that those features didnt work and i "read in the forums that if you changed the IMEI.... It'll work." They asked if it was an unlocked phone and i fibbed and said no, its ATT and i bought from Best Buy. Both times they said "lets try that" and i gave then my ATT s8 IMEI then my s9 Worked.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
Depending on the device, you might have to call. If your AT&T device is older, like an S5 Active, LG V10, etc. Then you will need to call and have it provieioned, which will show as your devuce on your bill. With very new devices and SIM s, it just seems to be a quick SIM update to allow it to work and once you get that update, you are set for any pbone with AT&T firmware.