yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S9+ Guides, News, & Discussion] cmoney90:
So the flash worked. I got to the ATT logo, and wifi calling works, but now my calling (inbound and outbound) don't work unless I'm on wifi calling only. ATT is useless. I gotta flash back so I can make calls again without being at home.

Have you heard of that issue before? It looks like I either get wifi calling or regular calling only but not both.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
That is definitely odd. Did you fully wipe when flashing? Did you flash the non-HOME files? The only time issues seem to pop up for people, is when trying to avoid wiping. Have you tried the hidden service menu to check the connectivity? You might need to enable all bands, save, and reboot. You can access that menu by putting in, *#2263#, into the stock dialer.
[Samsung Galaxy S9+ Guides, News, & Discussion] cmoney90:
I did a full wipe, then flash following the instructions you mentioned. I flashed the non-home files. I did the hidden service menu but all it says is RAT selection option is restricted. I'm panicking now because I need to make a couple important calls. I tried flashing back but ATT updated the phone so i'm prob now on the v2 bootloader so I can't go back. How can I get back up and running? Reset again?
[Samsung Galaxy S9+ Guides, News, & Discussion] bassman418:
Throw your sim card in a spare phone, or one of your friends phone to make those calls.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
You can try another reset. Check your build number and see if the fifth character from the right is a 1 or a 2. If it's a 1, flash back and try reflashing. If it is a 2, tuen trybreflashing the whole thing again with the AT&T image.
[Samsung Galaxy S9+ Guides, News, & Discussion] cmoney90:
Theres a 2. The only files I can find that are for ATT only contain a HOME_CSC, along with the usual AP, BL, CP. All the files I can find are containing a 1 for the bootloader. Phone works for a minute on reboot, but then starts hanging up automatically.

I was able to change settings from the secret menu if I removed the sim card. I selected all bands and rebooted with the sim, but the same issues are persisting. The ATT update changed everything to RBG from RB7 (initial flash).

ATT files won't flash because they're v1 bootloader, so now im f**ked
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
You can't flash to firmware with a previous version ofnthe bootloader. Maybe see if you can find another AT&T image to flash. I will see if I can dig one up.

The uodate for the U1 to the v2 bootloader is out. It might take a few days though for that to appear in an ODIN flashable format though.
[Samsung Galaxy S9+ Guides, News, & Discussion] cmoney90:
I'm thinking this is network settings-related and not the phone since the phone works on wifi calling and when I first boot up. Do you know where I can find a way to force changes of network settings on ATT, or any secret config menus to try?
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
Possibly check and try manually setting the APN?
[Samsung Galaxy S9+ Guides, News, & Discussion] cmoney90:
I've tried changing APN settings but then either SMS or phone calls don't work or work intermittently. Now wifi calling doesn't work anymore.

I found files for bootloader v2 but it's on a "pay to play" site. I think ultimately I'm going to give up on advanced features as ATT must be making it really tough to circumvent using their phones.

If anyone has a way to make this work completely using the ATT SM-G960U firmware, I'd be interested, but I don't see this working fully without going into ATT and telling them what is going on (not doing that).

Thanks for your quick responses jcsww. I really appreciate it!
[Samsung Galaxy S9+ Guides, News, & Discussion] geoff5093:
Looks like the U1 firmware for ODIN is up! Going to try this once it's downloaded: https://androidfilehost.com/?fid=746163614322276067
[Samsung Galaxy S9+ Guides, News, & Discussion] xstefen:
Just flashed it myself to my locked S9+ ATT, other than ARF4 is out of date ill report any findings
[Samsung Galaxy S9+ Guides, News, & Discussion] geoff5093:
I can confirm that the link I posted above turned my phone back to the unlocked model. Shows up as the 965U1, and with a Verizon SIM card shows up as VZW/VZW/VZW (it's the Verizon model that I flashed to T-Mobile a month ago).
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
Is it worth it to flash U1 ARF4? I heard it's based off of old build.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
It isn't as old as the previous U1 build. It does contain the June 2018 security patch. I haven't had any issues with it so far.
[Samsung Galaxy S9+ Guides, News, & Discussion] bassman418:
So your phone is originally a Verizon variant, but now it is unlocked and running the unlocked U1 firmware?
[Samsung Galaxy S9+ Guides, News, & Discussion] geoff5093:
Yup, so I had the Verizon model that I flashed to the original U1 firmware, then to the v2 T-mobile firmware. I've been stuck there until now when I was able to flash the v2 U1 firmware. With my Verizon SIM card, it booted up and said it will restart to apply the new SIM config, then I had VoLTE and advanced calling. I ended up flashing the Verizon v2 firmware though since I'm going to sell it, and it booted up with the Verizon splash page and preloaded apps.
[Samsung Galaxy S9+ Guides, News, & Discussion] Enraged Medic:
I haven't been on XDA since late 2015 since I've been bouncing between Samsung's and 1+1 phones. I'm glad to see the community is still thriving!

Anyway, I have a unlocked S9+ directly bought through Sammy and I am pretty upset that both the AT&T and Samsung representatives told me all of the extra features (VoLTE, WiFi calling, HD voice, etc.) would still be intact on an unlocked variant. Ass hats!

After reading about your dilemma, I'm really apprehensive about attempting to wipe/flash anything through Odin. It just seems like there's a ton of hoops to jump through to get those features to work. I'll be keeping an eye on this thread to see if everything gets ironed out eventually.
[Samsung Galaxy S9+ Guides, News, & Discussion] bboii86:
Thanks for sharing :good:

---------- Post added at 01:52 PM ---------- Previous post was at 01:50 PM ----------

Yeah, that's how you can carrier switch. It's been confirmed, by carrier switching via that method, it'll work all the time.

This works for the S9/S9+ U/U1 models

Simply flash the U1 firmware on your s9/s9+. Insert the sim card of whatever carrier AT&T, TMB, etc. Wait for the device to recognize the sim, it'll ask to restart and reboot the device. Once completed, shut the device off. Keep the sim in. Put it in download mode, flash any G965U/G960U firmware for your device and it'll boot to whatever carrier you have in that sim card. With carrier bloatware and all. Everything works 100%
[Samsung Galaxy S9+ Guides, News, & Discussion] NotATreoFan:
Anyone by chance have another mirror of this? AFH won't let me download this morning, says there are no mirrors available. Tested on 3 different browsers and connections.
[Samsung Galaxy S9+ Guides, News, & Discussion] bboii86:
Try this one

https://www.androidfilehost.com/?fid=818222786056040777
[Samsung Galaxy S9+ Guides, News, & Discussion] cmoney90:
I didn't realize this was originally a thread for G965, but do you have that v2 bootloader update for G960? I want to get back to U1 but I guess it won't work unless you're flashing a v2 bootloader in the ODIN files. Just thought I'd ask since the process looks to be the same....

Thanks
[Samsung Galaxy S9+ Guides, News, & Discussion] bboii86:
Use this tool called SamFirm. You can download firmware for mostly all Samsung models.

https://www.androidfilehost.com/?fid=674106145207498441
[Samsung Galaxy S9+ Guides, News, & Discussion] cmoney90:
Didn't think to check SamFirm for the latest update. The link you posted didn't find any mirrors, however I already had it.

Thanks for the reminder!
[Samsung Galaxy S9+ Guides, News, & Discussion] johnc0865:
Does the FM radio work on carrier specific firmware or has been disabled?
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
I'm going to flash the previous the "U" G965USQS2ARF4 build I was on because it worked better for me. I have bad signal with the original unlocked firmware for some reason. It's the same issue i had since launch.

---------- Post added 27th June 2018 at 12:00 AM ---------- Previous post was 26th June 2018 at 11:57 PM ----------

I downloaded NextRadio and it worked for me on the latest update for the U1 unlocked S9+
[Samsung Galaxy S9+ Guides, News, & Discussion] dannyHD2:
Finally!!

Thanks guys for posting this I've waited so long and finally! So far everything seems to be working pretty good. Went from att > u1(version 2 bl) > tmobile. I installed arc6 by the way and immediately got the ota to arf4. So I'm happy to have all my services and everything working as they should.

Thanks again for all the help!
[Samsung Galaxy S9+ Guides, News, & Discussion] chrisrodsa210:
That's what I'm planning on doing with my AT&T model, can you let me know exactly how you did it? Would really appreciate it.
[Samsung Galaxy S9+ Guides, News, & Discussion] jagrave:
Will flashing the u1 firmware on Verizon phone give access to the smart caller ID and places tab in phone app, or not because the csc will still be vzw?
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
My galaxy s9+ is showing fuse blown, can't use it and is in a bootloop..
[Samsung Galaxy S9+ Guides, News, & Discussion] dannyHD2:
Just use the patched Odin and throw your phone in download mode and then flash the u1 firmware. Unzip the archive, (I use 7 zip for Windows 10x64, make sure you have your USB drivers installed) then place the files in the correct slots and click start. Boot the phone (I had my tmobile SIM inserted during this) and phone will reboot and install appropriate apn settings, skip through setup, then reboot to download mode again and repeat the process using the tmobile v2 firmware. And voila!

---------- Post added at 12:19 AM ---------- Previous post was at 12:15 AM ----------

Someone can correct me if I'm wrong but fuse blown I don't think matters lol. Boot back to download mode and try flashing again with the patched Odin and if not check your firmware for bad download, also make sure you are downloading flashing correct firmware for your model (960 or 965) I think it's an issue with the flashing though. I don't think the prince comsy will work or standard Odin you need the patched b3 version. There may be as ne net one than what I'm using but that's the method I used and worked perfect. good luck!
[Samsung Galaxy S9+ Guides, News, & Discussion] koaltech:
I flashed the updated files from https://androidfilehost.com/?w=profile&uid=962021903579498214 and the userdata from AT&T, and coming from a factory unlocked S9+ direct from Samsung, and trying to enable the missing AT&T features, this definitely doesn't give you access to WiFi calling although it does give you the default Visual Voicemail as opposed to the sideloaded one...

Maybe I can call and get em to add my IMEI number in the same way that they enabled visual voicemail when I initially got the phone...*shrug*
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
Fuse blown doesn't mean nothing, try using mod Odin3_v3.13.1 and flash again.
[Samsung Galaxy S9+ Guides, News, & Discussion] koaltech:
Confirmed that they can't/won't do it,and since I own the phone outright and am not under contract, I'm moving to T-Mobile...*shrug*...no need to stick with AT&T since I don't use any of their other services, and DirecTV, or their streaming TV packages don't interest me......

Soon as I can get to a T-Mobile store tomorrow morning it's a wrap...
[Samsung Galaxy S9+ Guides, News, & Discussion] PhrostB:
my american unlocked u1 just got the ARF4 update, about damn time!
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
My camera is now blurry when taking pics

---------- Post added at 02:03 PM ---------- Previous post was at 01:59 PM ----------

New software update G965USQU2ARF9 available via OTA on my S9+ https://ibb.co/hihiS8
[Samsung Galaxy S9+ Guides, News, & Discussion] chrisrodsa210:
Really? according to

He didn't have a problem. Pg 41
[Samsung Galaxy S9+ Guides, News, & Discussion] kevindevonwilliams:
Oh :confused: what carrier is this? Sprint?
[Samsung Galaxy S9+ Guides, News, & Discussion] koaltech:
I don't have another IMEI number to give them from one of "their" phones...nor do I know anyone whos phone I can put my sim card into and have my sim provisioned to their IMEI...LOL

T-Mobile is cheaper, and doesn't require the hoops...I'm had my number ported over this morning, flashed back to U1, then to T-Mobile...and already have WiFi calling and everything else working...

Cheaper international service, better data plans, free GoGo wifi on planes, and less money...
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
Yes it's Sprint.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
Can you post a picture of about phone to see firmware build and Security patch thanks.
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
Here you go: https://ibb.co/kMVXn8
[Samsung Galaxy S9+ Guides, News, & Discussion] Cyclone Emperor:
I side loaded 2ARF2 and I'm having an issue where my phone will randomly reboot or completely shut down when the screen is locked for more than a minute or so. I have a feeling the firmware is causing the problems because I've wiped my phone and the cache and the issues still persist. I don't have access to a computer until the 15th. Is there anything I can do to upgrade/downgrade?
[Samsung Galaxy S9+ Guides, News, & Discussion] wayne8821212:
ARF4

So your unlocked variant went from ARBG to ARF4 and never had ARE6 if I'm correct?
[Samsung Galaxy S9+ Guides, News, & Discussion] PhrostB:
yes
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
What's the difference between G965USQU2ARF8 and G965USQU2ARF9?
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
G965USQU2ARF8 has Newer system and all apks are much newer , G965USQU2ARF9 is based off older system you can check even the kernel on G965USQU2ARF8 is newer than G965USQU2ARF9.
[Samsung Galaxy S9+ Guides, News, & Discussion] riveralc:
Weird I just updated from G965USQU2ARF4 to G965USQU2ARF5 but didn't see another option for G965USQU2ARF9...Verizon 965U here.
[Samsung Galaxy S9+ Guides, News, & Discussion] AndreiLux:
Can any of you on the latest firmware please post a benchmark result of https://browserbench.org/Speedometer2.0/ in Chrome? I think there's something massively wrong with the new updates.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
Cause only Sprint threw out that update 2ARF9.

---------- Post added at 01:56 PM ---------- Previous post was at 01:48 PM ----------

This is newer than 2ARF9 tho, numbers are backward but systems and kernel way newer on 2ARF8 than 2ARF9 .

2ARF5-to-2ARF8

https://www.androidfilehost.com/?fid=11050483647474832928
[Samsung Galaxy S9+ Guides, News, & Discussion] riveralc:
Thanks! Downloading now, i did notice a difference going to F5 from F4, you have a change log by chance or this is from AT&T?
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
No but 2ARF5 is even newer than 2ARF9, Also 2ARF8 has the new mms built in where you can add custom sound for contacts in conversation.

Theses are newer build than 2ARF9 see below those build,

2ARF2 and 2ARF5 and latest 2ARF8
[Samsung Galaxy S9+ Guides, News, & Discussion] riveralc:
Couldnt have said it better, updted to F8 and noticed apps ike camera are newer :) Thanks Venom! It still seems like i'll get Verizon OTA updates after F8 update as well?
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
Well S9 and S9 Plus next update will jump to bootloader v3 which should Soon see 3ARFB.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
As you see here.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
Looks like it will be 3ARG1. July Update.
[Samsung Galaxy S9+ Guides, News, & Discussion] djivan239:
Can some one post a step by step on how to flash t-mobile on S9+ U1

Thank you.
[Samsung Galaxy S9+ Guides, News, & Discussion] southaven1981:
https://xdaforums.com/showpost.php?p=75934492&postcount=53
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
1.) Download SM-G965U T-Mobile from SamFirm from here: https://uploadfiles.io/8i0wd or from here: https://updato.com/firmware-archive-select-model?record=11A4C033774711E89F15FA163EE8F90B

(*Skip steps 2-7 if you choose second link for fimware download link directly from Updato*)

2.) Download necessary files to run SamFirm v0.3.6 from prompt if you don't have them installed on your PC already.

3.) Run SamFirm as admin

4.) In "Firmware Info" section where it says "Model" put in SM-G965U

4.) Where it says "Region" put TMB

5.) Make sure "Auto" box is checked

6.) On the right side where it says "Download" make sure "Check CRC32" & "Decrypt Automatically" boxes are checked"

7.) Start the download and choose where you want to save the file.

8.) Unzip the downloaded file where you saved it

9.) Download the drivers for the Galaxy S9+from here: https://www.samsung.com/us/support/owners/product/galaxy-s9-plus-unlocked (Go to Downloads tab and Software & download that)

10.) Download ODIN V3.13.1 from here: https://odindownload.com/

11.) Put your S9+ in download mode (volume down button+ bixby button and power button all at the same time, then press volume up one time.)

12.) Make sure your phone has at least 50% battery.

13.) Plug in cable to PC while ODIN is open, you should see a little blue box in upper left corner.

14.) The downloaded firmware file you downloaded and unzipped, you are going to put the files in the corresponding areas in ODIN (BL, AP, CP, CSC, USERDATA)

15.) Flash CSC_OMC instead of HOME_CSC

16.) Wait for it to fully flash (you will see a little white bar progressing on our phone.) Once its done, ODIN message will say pass on your PC monitor.

17.) Disconnect usb cable from PC and your done!

*IMPORTANT* PERFORM A FACTORY DATA RESET BEFORE YOU BEGIN

Optional

- Remove Accounts in settings before you start to start fresh in setup with T-Mobile firmware.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
As i mentioned.
[Samsung Galaxy S9+ Guides, News, & Discussion] riveralc:
It's out? I like F5 better for some reason lol.
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
I'm wondering if it's out as well..
[Samsung Galaxy S9+ Guides, News, & Discussion] nugzo:
Using 2ARF8
[Samsung Galaxy S9+ Guides, News, & Discussion] yeltrah123:
I might need to take my S9 Plus to service center. Less than 2 weeks after my I got RPMB Fuse Blown message in download mode, and was told it was nothing on here, now my screen is flickering from time to time.
[Samsung Galaxy S9+ Guides, News, & Discussion] nugzo:
48.6

Is that good? Or bad. If bad, what numbers are good
[Samsung Galaxy S9+ Guides, News, & Discussion] AndreiLux:
It's good, it's as it should be. I'm getting 38.8 on ARF4 so maybe it's just an issue on that firmware. I'm on an U1 device.
[Samsung Galaxy S9+ Guides, News, & Discussion] xstefen:
48.5 u1 arf4
[Samsung Galaxy S9+ Guides, News, & Discussion] soul44:
I apologize because surely this has been asked, but I tried following post #697 and substituting AT&T files for the T-Mobile parts. SamFirm doesn't list AT&T for SM-G965U, and the file for SM-G965U1 for AT&T doesn't come with USERDATA.

I have an unlocked, direct from Samsung SM-G965U1 that I use on AT&T but I want the AT&T features. When I flash the SM-G965U1 AT&T firmware files in Odin, it wipes the device and my software information CSC is changed to ATT/ATT/XAA, but I see no sign that the AT&T USERDATA I found on AndroidFilehost took at all. No boot logo, no wifi calling, etc.

So I guess I have a couple questions. Since I have the U1, do I flash the AT&T U1 from SamFirm? Or something else?

Is there a different userdata? (Mine matches the rest of the Odin files, ARF4)

Thanks guys. Sorry again if this has been covered but I thought following those directions was pretty straightforward.
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
You need to flash the AT&T U firmware. It will still show up as ATT/ATT/XAA but you should thennhave all of the AT&T stuff not included in the U1 firmware.
[Samsung Galaxy S9+ Guides, News, & Discussion] soul44:
When I type "SM-G965U" in SamFirm, with ATT as the region, it doesn't have an available download. I also looked on SamMobile and they also don't have an ATT file for the 965U, only or the U1. Am I misunderstanding?

https://www.sammobile.com/firmwares/galaxy-s9-plus/SM-G965U/
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
U1 is the unlocked model. Although it will install the APN and stuff when you put a SIM in it. You don't usually get everything. For example. T-Mobike on the U1 is missing video calling but everything else is there for features.

I had a look at Updato. I didn't see the AT&T U firmware there either. AT&T is one of the more pickier carriers for allowing their variant firmware for any device to be available to the public. Try here. The U 2ARF4 firmware is there along with the AT&T userdata.
[Samsung Galaxy S9+ Guides, News, & Discussion] soul44:
Thanks! I found an older RB7 odin/userdata for AT&T which is not quite done downloading but I'll give the 2ARF4 a go as well. After reading around a bit, it seems like the U firmwares themselves aren't different...if the downloads were a bit quicker, I'd compare them. But every once in awhile people have been saying the firmwares are the same and it's the Userdata that differentiates it. So maybe I can flash the ATT CSC, the T-Mobile (or other) system/data, and then flash the AT&T userdata. That'll be after I try your link :D

Edit: "USC" for CSC codes seems to be US unbranded. I assumed it was US Cellular. If it's unbranded then that should be fine and I can flash the AT&T userdata afterwards. Gonna give it a go.
[Samsung Galaxy S9+ Guides, News, & Discussion] hoaloaken114:
I just received this update? Should I go ahead and update (my phone is originally G965W but I I've flashed the U1 ROM)View attachment 4542744
[Samsung Galaxy S9+ Guides, News, & Discussion] jcsww:
Yes. I also have a W running U1. Updates instal fine.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
S9 Plus - G965USQU2ARF8-to-U3ARG2 Link: https://www.androidfilehost.com/?fid=5862345805528041043

Remember I'm not responsible, plus there's no going back this has new Bootloader v3
[Samsung Galaxy S9+ Guides, News, & Discussion] NotATreoFan:
What is the recommended path to get from ARF4 to the newest version (by system/apk dates, not necessarily build)?

I'm having a some weird quirks since updating to ARF4 using a clean flash in ODIN. WiFi Calling is really slow to send messages, and music now sounds both lower in volume and crappier in quality whenever Atmos is turned on. That was not the case on prior builds and I quite miss the clean audio through the AKG earbuds.
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
Can go to this

2ARF4-to-2ARF5

https://www.androidfilehost.com/?fid=674106145207494731

Then 2ARF5-to-2ARF8

https://www.androidfilehost.com/?fid=11050483647474832928

Which i am on 2ARF8, haven't yet tried 3ARG2

But if you do flash 2ARF8-to-3ARG2

Will not be able to go back since 3ARG2 is Bootloader v3

So if want to still stay on bootloader v2 latest for that bootloader v2 is 2ARF8.
[Samsung Galaxy S9+ Guides, News, & Discussion] NotATreoFan:
Thank you. I'll hold off from V3 for now, but hopefully ARF8 will fix the other issues.
[Samsung Galaxy S9+ Guides, News, & Discussion] Cyclone Emperor:
Any way to upgrade from 2ARF2 without downgrading? I don't have a laptop for about a week and a half
[Samsung Galaxy S9+ Guides, News, & Discussion] Venom0642:
Nope you would have to Odin to 2ARF4 and go from there with my links.
[Samsung Galaxy S9+ Guides, News, & Discussion] ombheembush:
Does U3ARG2 have July patch? What are your doubts of not going to v3 bootloader?