yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
If your device was bought from ATT, and you use a U firmware, all carrier features work, even if you use a firmware ATT didn't release.

If you bought an unlocked (U1) or a device from another carrier, ATT blocks features such as wifi calling and advanced messaging. ATT requires your IMEI to be in their system for these features, and won't add the IMEI of a device bought elsewhere, even official U1 devices.

If you bought your device at ATT and load the U1 firmware, you will lose features such as WiFi Calling, Advanced Messaging and possibly VOLTE.

The only time you need to flash USERDATA is if your swapping carriers.

Example: the phone is flashed to Verizon. You want to move to ATT. You flash to U1 (no V2 Bootloader currently), and wipe the device. Boot up with new sim. Then flash back to U with AP, BL, CSC and Userdata. Leave new sim in and boot up.
[Samsung Galaxy S10+ Guides, News, & Discussion] tailgunner9:
I have never used the Userdata, just always AP,BL, CP & Home CSC but these files I downloaded has No Home CSC to flash but has CSC_OMC_OYN_ but I am not sure about this since do not know what it will do to my ATT. Never had any trouble flashing with files I always Flash. It is an ATT SM-G975U phone.
[Samsung Galaxy S10+ Guides, News, & Discussion] nowerlater:
Flashed just fine last night
[Samsung Galaxy S10+ Guides, News, & Discussion] fatboypup:
Anyone flash this on sprint yet? All good? Edit never mind you don't have sprint user data yet ?
[Samsung Galaxy S10+ Guides, News, & Discussion] MarkC609:
2ASF6 firmwares are now updated on SAMMOBILE.
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
I flashed ASF6 on my Sprint S10+ 5 days ago and all is good. U don't need the Sprint user data
[Samsung Galaxy S10+ Guides, News, & Discussion] bilal.10:
some help

running the latest ASDB firmware on my device, device is originally a U device with verizon. i want to go back to that since verizon is faster with the updates compared to the XAA U1. I'm currently in pakistan using my phone so i dont care for an carrier specific features. what is the method of changing firmware. would it be as easy as downloading the firmware. and using odin to flash the new system the same way i always have or are there extra steps to go on carrier or would the difference be adding the userdata file
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Sprint won't be getting SF6 or SF7. Their next update will have a different build. But as has been stated multiple times in this thread and others, any version can be flashed to any U or U1 device at any time, as long as you're not trying to downgrade bootloaders
[Samsung Galaxy S10+ Guides, News, & Discussion] KillaKelz808:
For those who flashed sf7 then went back to sf6, do you feel like the touch sensitivity and smoothness got alittle worse or is it just me?
[Samsung Galaxy S10+ Guides, News, & Discussion] rtarv321:
I did a factory reset when moving from 7 to 6. It may be me, but the fingerprint sensor is more responsive & accurate.
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
If you flash the regular CSC, it will wipe your device. OP says his upload includes a HOME CSC. If you got yours elsewhere, download his.

You can also skip the CSC to avoid wiping. It could mess up your ota's.

In regards to USERDATA, the post you quoted said specifically that you only need it if your coming from another carrier. So if your not, you don't need it. If you are, you need to wipe anyways, so you wouldn't need a HOME CSC.
[Samsung Galaxy S10+ Guides, News, & Discussion] Calape:
Hi everybody. I need some help please. My phone is SM-G975U of AT&T carrier. I just want change for any rom unlock, I'm trying two times with roms downloaded from sammobile, but don't work. Logo and apps still going. Flash file CSC and my phone restart with all my apps. Help!

Enviado desde mi SM-G975U mediante Tapatalk
[Samsung Galaxy S10+ Guides, News, & Discussion] MarkC609:
I have 2ASF6 successfully installed on my device. My issue is I have switched my carrier from AT&T to VZN. So as of right now I am stuck with AT&T bootup & bloat because I can not flash back to U1 firmware on 2ASF6? I just want to be able to enjoy my Night mode and VZN bloat :(.
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
Confirming the OP's zip file has the HOME CSC file. If you need the file, download his Zip...
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
To switch carriers, you need to go to U1 and then back to U. You can't do that until the U1 V2 bootloader is released.

Once it is:,

1. Flash U1 using CSC to wipe.

2. Boot fully with new sim installed.

3. Flash back to U, with sim still in, and wipe again.

4. Profit
[Samsung Galaxy S10+ Guides, News, & Discussion] MarkC609:
Yep. Hopefully it'll be very soon!
[Samsung Galaxy S10+ Guides, News, & Discussion] tailgunner9:
Everything went into my AT&T S10+ Fast & Great. Thanks guys on G975USQU2ASF6 Now from 2ASF7 with All my apps from previous firmware. Thanks Guys!!!!
[Samsung Galaxy S10+ Guides, News, & Discussion] Calape:
I commented, my phone does accept sim from other operators. What I want is to change for a Rom without Apps of AT&T, or Bootanimation, Logo. I bought the cell phone in the US but I'm not there. Besides Samsung Pay, what else could I lose? PS: I installed ASF6 via Odin thinking that would erase AT&T trash.

Help me please.

Enviado desde mi SM-G975U mediante Tapatalk
[Samsung Galaxy S10+ Guides, News, & Discussion] MarkC609:
Glad to see it worked out for you. I know when I loaded up the 2ASF6 files on ODIN and pressed start it took alittle longer then normal for it to flash but it PASSED and night mode/QR scanner working fine. My S10+ is stuck on ATT for now.
[Samsung Galaxy S10+ Guides, News, & Discussion] refurbishedtoaster:
I completely agree! The fingerprint scanner has been my biggest complaint with this phone, but since flashing ASF6 and resetting it's much improved.
[Samsung Galaxy S10+ Guides, News, & Discussion] juannicolas:
I'm super extra confused with this 2ASF6 and 2ASF7, shouldn't F7 be newer? Why everyone is installing F6 ? Anyways, i'm running ASD9
[Samsung Galaxy S10+ Guides, News, & Discussion] rtarv321:
From I remember, I think it was from the "ibowtoandroid" than 7 was for t-mobile only
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
If you want firmware with no carrier bloat, then you need U1 firmware. But since you flashed bootloader 2 firmware, you now need to wait until U1 firmware is released with bootloader 2, since you can't flash anything that has bootloader 1
[Samsung Galaxy S10+ Guides, News, & Discussion] Calape:
Before flashing 2ASF6 I have tried this firmware: G975U1UES1ASDB_G975U1OYM1ASDB_XAA in my G975U

but simply updated the June security patch. All AT&T apps and bootanimation were maintained.

What did I do wrong?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
That's not enough information. We need to know exactly which version you were running previously, which carrier's bloatware you had (if applicable), and which version you want to install
[Samsung Galaxy S10+ Guides, News, & Discussion] hnguyen1982:
hi bro, i am using Sprint unlocked with firmware U1 , now i want to flash asf6 for night mode camera , how i can do? tks for your support
[Samsung Galaxy S10+ Guides, News, & Discussion] Calape:
Thanks for your answer. These images are from before Flash G975U1UES1ASDB_G975U1OYM1ASDB_XAA after this, only Firmware changed but Code CSC was kept. Why?

Enviado desde mi SM-G975U mediante Tapatalk
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Well Samfirm did have builds ASF6 and ASF7 available a couple days ago but now their removed and latest is showing as ASD9 again. Samsung must be looking to drop another build in place for both.....
[Samsung Galaxy S10+ Guides, News, & Discussion] mystikal87:
Did you use Home_CSC or the regular CSC when flashing?
[Samsung Galaxy S10+ Guides, News, & Discussion] Calape:
CSC, but my phone does not start. Just returned to Recovery, and I pressed Reboot system now with power button. All my apps, settings remained the same, as well as AT & T bootanimation.

Enviado desde mi SM-G975U mediante Tapatalk
[Samsung Galaxy S10+ Guides, News, & Discussion] mystikal87:
Got the same issue with my own as well. I believe Odin loads the bootloader and locks whatever is there before the firmware has time edit the bootloader for the splash screens and bloatware. Right now if you're at ASF6 then V.2 of the bootloader is on the phone, then we just gotta sit back and wait til the U1 firmware is loaded with the V.2 bootloader. I tried flashing back to SDB and that failed. :(
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
The CSC code will never change. The CSC version should change to match the version that you flashed, however.
[Samsung Galaxy S10+ Guides, News, & Discussion] californiarailroader:
I have an S10+ bought from Samsung (Verizon branded), I moved over to AT&T from Verizon last week, and everything is great except I don't have VoLTE or WiFi Calling. Now, I thought about doing the flash to the AT&T FW, but if it's from another carrier, and AT&T won't accept IMEI's from non AT&T phones for those features, what would it do for me, other than give me bloatware I don't want? I've done this stuff so many times, it's old hat, but I have the 512 GB model ($$), so I really don't want to do it for nothing, or worse, brick it ;)
[Samsung Galaxy S10+ Guides, News, & Discussion] webwolf89:
Anybody stumbled onto this?

https://www.androidauthority.com/samsung-galaxy-s10-unlock-problem-1008100/

Basically Galaxy S10 and S10+ phones locking out their users after updates. Might that be a reason ASF6 and ASF7 are being pulled back?
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Yeah I seen that. Pretty sure that's why Samsung pulled those firmwares. Seems like it only happened to folks that did the OTA to those builds. I know several people including myself Odin to ASF6 and our phones are fine.
[Samsung Galaxy S10+ Guides, News, & Discussion] jhs39:
I don’t have AT&T anymore but they used to allow Volte and WiFi Calling on unlocked phones as part of BYOP--although sometimes you had to contact them with your IMEI if the services didn't work out of the box.

Are you sure AT&T no longer accepts IMEI numbers from non AT&T phones for those services?
[Samsung Galaxy S10+ Guides, News, & Discussion] StoneyJSG:
I took the OTA update from ASD7 to ASF6 and my phone never locked me out of itself. Still hasn't and have been on this baseband for like 2 weeks now. I have an AT&T galaxy s10 plus.
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
The S9 forums were plagued by people trying to use even U1 devices on ATT and getting the imei added for wifi calling, volte and advanced messaging. The trick was getting the services activated by putting the sim in an Att branded phone first, then putting the sim in the new device. It was very much a ymmv.

---------- Post added at 04:57 PM ---------- Previous post was at 04:49 PM ----------

If your device isn't sim unlocked, no firmware will change that. Your options are to get it unlocked by the carrier or pay a service.

As for getting rid of bloat, you'd need U1 which as stated isn't available yet in bootloader V2.
[Samsung Galaxy S10+ Guides, News, & Discussion] Calape:
Thanks. My phone is Unlock, Receive sim from other operators.

Enviado desde mi SM-G975U mediante Tapatalk
[Samsung Galaxy S10+ Guides, News, & Discussion] anifowose:
I was gifted a locked T-Mobile 10+, can I flash the unlocked U1 firmware to unlock it from T-Mobile?
[Samsung Galaxy S10+ Guides, News, & Discussion] webwolf89:
No. Changing firmware does NOT change SIM lock status. Unlocking is a separate process.
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
Im pretty sure people are just trolling by asking that. Its clearly stated over 100 times in these threads.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Oh, you'd be surprised -__-
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
That assumes people actually read the threads before asking a question that's been answered a few dozen times already......
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
So whats it called when people dont read the threads? Non-troll trolling? Lol
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Ignorance and laziness
[Samsung Galaxy S10+ Guides, News, & Discussion] FluffyMittens:
Thanks for the information and great work iBowToAndroid. I am going to be getting the SIM unlocked from Sprint here soon and plan on flashing the US Unlocked version. My question was that Sprint documentation (https://www.sprint.com/en/support/solutions/device/faqs-about-unlocking-your-sprint-device.html) states "Please note: Performing an ##RTN# function on an Android device will re-lock the device to Sprint"

If I get it unlocked and flash the unlocked version, is it going to end up locking the SIM again or am I in the clear? Sorry if this has been addressed already. I have been reading over this thread the past few days.

I gave a thanks on your OP. I know how it is to work on things here. Appreciate everything you do.
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
Flashing U1 shouldn't lock the device.

Note: if the device comes on a v2 bootloader, there's still no V2 bootloader U1 out yet. You'll need to wait until it's available.
[Samsung Galaxy S10+ Guides, News, & Discussion] FluffyMittens:
I tried checking bootloader version but have only been about to find a 1.0.0 and this.

Is this v1?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
The bootloader version is the 5th-to-last character of the full Build Number. If that screenshot shows the current information of your actual device, then you're on bootloader 1 - and you can flash U1. I'd recommend against doing any OTA updates because the very next one will likely take you to bootloader 2, and then you'll be stuck on U firmware until bootloader 2 drops for U1. And no, firmware flashing will never SIM lock a device.

Your original post pre-edit mentioned unlocking difficulties with Sprint. That's a very common thing that a lot of people run into these days. If you want a 3rd party solution that will have it done immediately, I can give a recommendation for that. But it's not cheap, so I'd recommend fully exhausting all possible avenues with Sprint first, before resorting to that
[Samsung Galaxy S10+ Guides, News, & Discussion] FluffyMittens:
Greatly appreciated. If you could PM me a trusted unlocking source that would be great. I was already shopping around for an unlock service to cover all my bases.

Thank you very much for your time. I will be sure not to download any updates that may come across.
[Samsung Galaxy S10+ Guides, News, & Discussion] justinforeman200:
You dont need an external source to unlock your phone. If it is paid off from your carrier they will unlock it for you for no charge. But if you do not have it paid in full no carrier or external service will be able to unlock it because it has to be authorized through the carrier. Att has an unlock portal online and Im pretty sure all other carriers do too, but it must be paid in full.
[Samsung Galaxy S10+ Guides, News, & Discussion] FluffyMittens:
It is paid off in full.

For whatever reason Sprint is saying they have to unlock it at the end of a billing cycle, so last cycle it was supposed to happen but an agent "made an error".

Now this next cycle that's coming up another agent assured me that it was ready to go. I guess we'll see when that date comes.

To me it doesn't make any sense that they won't just unlock it. I don't see the correlation of billing cycle and unlocking it. I call BS on their procedures and giving people the run around.
[Samsung Galaxy S10+ Guides, News, & Discussion] GaryRyan600:
Really Need Help with This version 2 bootloader for S10+

So I have a ATT branded phone that is SIM unlocked. I currently use it with TMB service and everything works, even wifi calling.

My version is: G975USQU2ASF6

I would like to flash it to an unlocked version (U1) ideally or a TMb branded.

I have tried flashing with the ODIN v3 13.3 but i still get a SHA256 Invalid Fair error as soon as I start the process. Interestingly enough. I am able to flash the T mobile rom on it with this meathod and it will change the model number in the settings, and will do a full run but the ATT bloatware and the splash screen will remain on the device.

I tried using a older version of ODIN and using Home CSC and non home CSC and everything in between but still no luck in getting rid of the ATT.

Someone told me it may be because its a ver. 2 bootloader?? If so does anyone have a fix for this or any suggestions???

Thanks
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
use odin 13.3 3b patched
[Samsung Galaxy S10+ Guides, News, & Discussion] GaryRyan600:
Just tried it. Give me a line 1892 error or something right after starting process.
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
whats the full name of the firmware your trying to flash
[Samsung Galaxy S10+ Guides, News, & Discussion] GaryRyan600:
Sm975u1asba1

I don't have it to reference now. It was the unbranded version in a previous thread about ROMs.
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
Yeah thats no good go to easy-firmware.com that site is very good they will have the rom you want use binary 2 not 1
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
In a perfect world, yes, it would be that easy. In the real world, there are many times where a person has trouble getting the carrier to do the unlock, even if they meet all of the requirements. So sometimes an external source is needed.

You really need to read the past several pages of the thread. You'll find the correct version of Odin to use, and you'll also discover why what you're trying to do isn't possible at the moment
[Samsung Galaxy S10+ Guides, News, & Discussion] GaryRyan600:
sorry for noob question but how do I know its a binary 2?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Once again, reading the past several pages of the thread will give you all the information that you need.
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
G975USQU2ASF6 your firmware

G975USQU 2 ASF6 that two is the binary version
[Samsung Galaxy S10+ Guides, News, & Discussion] GaryRyan600:
Ok so the bootloader number and binary number are the same.

Apparently I am running the latest version of stock android on Att with ver. 2 bootloader/binary. I DO have night mode and wifi calling. I guess ATT is ahead of the pack with update releases.

So I need to wait for easy-firmware to upload a ver. 2 bootloader firmware for TMobile or the unlocked version and flash that using Odin 13.3b patched and it should work?

Do I need to convert it to the u1 of the version 2 bootloader firmware first then flash TMobile after that or would it be ok to just flash TMobile ver. 2 once the build is released?

Thanks
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
The procedure for converting from one carrier's U firmware to another carrier's is given in the OP
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
The answer to that is on page 1 post 1. Just read

---------- Post added at 04:24 PM ---------- Previous post was at 04:23 PM ----------

How do I create a google account and turn my phone on? Lol

I dont want to read the manual :)
[Samsung Galaxy S10+ Guides, News, & Discussion] Gotti94:
So do i compress and then extract? I downloaded the SAT files and Tmobile superdata. I really need advice please. I am in noob in flashing and really need to get my At&T s10+ to Tmobile Firmware for wifi calling and visual mail. Thanks
[Samsung Galaxy S10+ Guides, News, & Discussion] rajbsn:
I have flashed the U1 firmware SAU - 1 - 9.0 (BL+AP+CP+CSC) on my Verizon branded s10+ and verified that all Verizon apps are gone.

Then flashed the U Firmware G975U_SF6_2 ((BL+AP+CP+CSC+USERDATA ATT). But at the end I got Verizon branded apps back on, What am I doing wrong?
[Samsung Galaxy S10+ Guides, News, & Discussion] donavond:
By saying it doesn't come with carrier bloatware, does that also mean things like, "samsung pay, avatar stickers, facebook, samsung email, etc"?
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
Is the SIM Verizon or ATT? If I remember correctly, the boot animation and bloat is determined by the sim on first boot. If you want to swap carriers you need to wipe when going to U1 and again when going back to U. Make sure the new sim is in before starting.

There is Carrier bloat, and Samsung Bloat. For example, a game called "Empire" comes as ATT bloat. Most if not all ATT bloat is uninstallable. Any carrier bloat that can't be uninstalled can be disabled.

Anything Samsung branded is considered "features" and will show up on U and U1. It typically can't be uninstalled and disabling some of it can break other features. For example, disabling Bixby has caused other features to break. You can look for the bloatware removal thread for help, and lists of what can be removed, including an ADB script.
[Samsung Galaxy S10+ Guides, News, & Discussion] jiml87:
Anyone have an update on U1 firmware for bootloader 2?
[Samsung Galaxy S10+ Guides, News, & Discussion] rajbsn:
I have the same question. I have alredy flashed the U bootloader version 2 and now I'm not able to flash the U1.
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
No update yet, but it most likely will be available next month.
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
I am on v4 and cannot flash U1. This sucks :(
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
I think you mean v2. But agreed, it sucks. Contact Samsung - they have no motivation to change if they don't hear from their customers
[Samsung Galaxy S10+ Guides, News, & Discussion] petersk2:
My carrier unlocked S10+ running AT&T'S G975USQS1ASD9 got an OTA update to G975USQU2ASF6 today. I was using firmware science because it would never update OTA, really surprised me. Guess AT&T is starting to allow IMEI's now?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Well, which carrier is it originally from?
[Samsung Galaxy S10+ Guides, News, & Discussion] petersk2:
It's carrier free, bought it from Samsung unlocked

---------- Post added at 06:31 PM ---------- Previous post was at 06:29 PM ----------

It's carrier free, bought it from Samsung unlocked
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
1. I think for most users, saying "carrier unlocked" makes it sound like it was originally from a specific wireless carrier, but has been network unlocked. Most users simply say "U1 model" when referring to the one that is sold directly from Samsung.

2. The IMEI number doesn't factor in to the update process at all. AT&T has never blocked OTAs - you should always get the normal updates if you're running AT&T firmware
[Samsung Galaxy S10+ Guides, News, & Discussion] petersk2:
Gotcha! Yes it would have made more sense that I had indicated that it was purchased as an U1 model.

My wife's S10+ and daughters S10e were also U1 versions but theirs are still on the February security patch.
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
If its Samsung unlocked the build would be something like G975U1UES2ASF6. If its G975USQU2ASF6 that's carrier firmware with the carrier bloat apps.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
He's referring to where he originally got it from, not necessarily the firmware that it's currently running. So he's obviously installed U firmware on his U1 model.

Are they being used on AT&T? Do the phones have all AT&T bloatware? Does it say "already up to date" etc when you try to OTA update?