yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S10+ Guides, News, & Discussion] GolfJuliet:
Hello, i have problem with my s10+ ( i bought my s10+ from US costco at Dallas , but now, i am living in korea now. )

I used T-mobile S10+, and software was up to date. ( Sim Unlocked, Bootloader V2, T-mobile latest firmware )

problem was that LTE CA(carrier aggregation) was not working properly in korea,

i double-checked LTE signal and LTE CA in service mode, and tried to change LTE BAND settings. but nothing changed.

i though that "T-mobile firmware is problem , it makes LTE speed low" , so I tried to install Unlocked Firmware. ( i downloaded Firmware from SamFirm)

after install, nothing changed. Low speed LTE ( almost 30mbps ) and No support LTE CA.

(my brother is using S10e, and he is using korean carrier same as me, but fully functional LTE.

difference is that he bought s10e from korea , and i bought s10+ from US)

also , some hidden menu code( for example *#2263# ) is no longer working anymore .

it shows " connection problem or invalid MMI code ". but this code worked with T-mobile firmware before install unlocked firmware. but now , not working anymore with Unlocked Firmware.

so i tried go back to T-mobile latest firmware. (download from samfirm)

but, nothing changed from unlocked firmware.

1, service menu code is not working and some codes show me, "MENU DOES NOT EXIST" , totally broken.

2, there is no T-mobile boot-logo.

3, i think that Serivce provider SW ver. is not changed.

this is my "Service provider SW ver."

SAOMC_SM-G975U_OYN_XAA_PP_0013

"MY SERIAL NUMBER"

XAA/XAA/TMB

4, i can't check my firmware update from T-mobile server anymore. my s10 keep trying to connect Unlocked firmware server. (Samsung server? not carrier server ?)

I am stuck on XAA firmware , i can't fix it anymore.

ok , my post is too long haha, leave it.

i have question,

1. how can i go back to T-mobile Firmware? i installed t mobile firmware but nothing changed, it feels like stuck on Unlocked firmware.

2. for installing T-mobile firmware , do i need T-mobile sim card?

3. Error message " Connection Problem or Invalid MMI code" . is it CSC install Error?

3. anyone know that how to enable LTE carrier aggregation? or service menu code? ( oops )

thanks for read my post, i am really sorry, i am not good at speaking English
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
1. Yes, you need a T-Mobile SIM. The instructions for converting firmware are given in the OP

2. I don't know anything about USSD codes

3. You will probably never be able to get carrier aggregation in a different country because an American phone is not built the same as a Korean phone. Completely different networks and completely different technologies and frequencies are used
[Samsung Galaxy S10+ Guides, News, & Discussion] GolfJuliet:
Thank you so much, you solved my problem haha :D , may i ask you one more?

so, i need a T-Mobile SIM for converting firmware to T-mobile.

what about Unlocked firmware? , no need any carrier sim card, right?

can i use korea carrier sim card?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
You do not need a SIM card in order to go from U firmware to U1 firmware
[Samsung Galaxy S10+ Guides, News, & Discussion] rajbsn:
Anyone came across the V2 bootloader U1 firmware yet? I'm on ATT V2 bootloader version and like to go back to U1
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Please read the thread before posting. Or at minimum, the last several pages. You will find your answer there
[Samsung Galaxy S10+ Guides, News, & Discussion] rajbsn:
I read the through the posts and learned G975U1UEU2ASGB is available but couldn't find any links to download. I tried both Frija and SamFirm to download but had issues running these tools on my current windows box and getting dll errors.

I was hoping to see a link to download a U1 version.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
None of us are responsible for your Windows box not working correctly. You have lots of options in this situation
[Samsung Galaxy S10+ Guides, News, & Discussion] rajbsn:
Thanks for the clues and I finally found a download on AndroidFilehost for this G975U1UEU2ASGB. I'm back to U1!!

I really appreciate all your work iBowToAndroid !! and this thread helped me a lot and have been watching this for a while.
[Samsung Galaxy S10+ Guides, News, & Discussion] DerekKlehm:
So let me make sure I have this right (I've done this a lot but I do NOT want to brick my $1000 brick.) I have the SM-G975U from ATT which I IMEI unlocked and use with my Verizon SIM. To get the verizon apps and my friggin hotspot (cause that's important to me), I thought it would change automatically like my Note9. What I'm seeing here is to wipe, flash the 975U1 firmware on my 975U device, boot, and let it change. Then reboot to download, and flash the VZW 975U firmware with a non HOME CSC, and the VZW USERDATA. Am I correct?
[Samsung Galaxy S10+ Guides, News, & Discussion] nugzo:
sometimes no matter what you do you wont get all the carrier features on the U version. I still buy my galaxy out right (used to always buy U ) but i buy the branded version from samsung now. That way I still get all the carrier features. I was tired of losing so many features from ATT on my s9+ because i had a U phone. Only way i could get them all was to flash branded firmware, call ATT and give them the IMEI from my ATT branded S8+, told them i read in forums that missing features was a common problem (they dont know) and i read that if you use the IMEI from my previous phone that everything would work. They did it and everything worked. They asked if i had an ATT phone. I played dumb and said yes, it says ATT when it boots. Having a non U version really is not a problem. I can flash U firmware any time i like and will have a U phone. I also switched to verizon, who's phones are unlocked anyway, win win.
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Does anyone know when the ASH1 build will be available in the us? Its currently being released to everyone on the F model. I see looking on sammobile our version names are fairly consistent.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Any consistency is purely coincidental. The devices have completely different chipsets, and so the software is developed totally differently. Looking at a few different F regions, I don't see any build numbers that I recognize from U releases. SHx means it was compiled this month, so I would expect those to maybe start hitting next week. Combination (factory) firmwares are the only SHx ones I've seen so far, for US models
[Samsung Galaxy S10+ Guides, News, & Discussion] LexApp:
Hi,

Please can I flash just the U1 without the non HOME CSC and the USERDATA? I just want to be as near as stock if possible. Thanks
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Sure. But you'll have issues and glitches and crashes
[Samsung Galaxy S10+ Guides, News, & Discussion] Luis R:
Hi,

In my S10 + I have this update G975USQU2ASG8, (SPR / SPR / XAA)

I want to pass it to U1, with this firmware that I found in AndroidFilehost for this G975U1UEU2ASGB think it is earlier than I have, but can the change be made?

Thanks!!
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
In the computerized alphabet, numbers come before letters. So B is newer than 8.

Yes, you can flash it
[Samsung Galaxy S10+ Guides, News, & Discussion] Luis R:
ok thanks one more thing. What version of odin is needed?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
That's already been discussed/mentioned many times in the thread
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
I have found a similar way.

I was on VZW and went to U1 (V2)

I didnt like the signal of U1 and want to go to ATT since I have a cricket sim card.

I got a cheap dead att sim off ebay for 99 cents.

While on U1, I simply pop open the sim tray and put the att sim in(while the phone is still on), within a minute my phone promted me to restart to apply new carrier settings.

I let it restart fully and then restarted again to recovery and factory reset.

I chose reboot phone and held down on vol down + bixby key only while it rebooted. (It will reboot once and say erasing then immediately reboot again so dont let off the 2 buttons) you will catch it on the 2nd reboot.

Once in download mode, press vol up.

Flash att or carrier of choice(assuming you inserted your working or non working carrier sim while U1 was running and followed the steps above)

After flash it will reboot, catch it the same way as above on the 2nd reboot after "erasing" and factory reset.

Reboot and you will be on carrier U version and have the carrier boot screen.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Those are exactly the same steps that I gave, with an added reboot or reset (or two) in there. You don't need to manually factory reset it - the flashing will handle that for you, as long as you chose the non HOME CSC
[Samsung Galaxy S10+ Guides, News, & Discussion] king3opobn:
Hello, does anybody know how i can revert back to stock att? I flashed u1 version when i got the phone from att, but i would like to revert back to att so that i can subsidy unlock the phone.
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
Its a PIA at first I know that much lol

---------- Post added at 02:59 AM ---------- Previous post was at 02:59 AM ----------

Its literally 2 posts above
[Samsung Galaxy S10+ Guides, News, & Discussion] king3opobn:
Ok, so where do i find att to flash?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Seriously...? You didn't see the links in the OP...?

Also, flashing back to AT&T firmware shouldn't be needed in order for you to be able to unlock it. It should correctly prompt for - and accept - the unlock code even on U1 firmware
[Samsung Galaxy S10+ Guides, News, & Discussion] king3opobn:
There is only a u and U1 download
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Correct. And if you want carrier firmware (with bloat etc), that would be U
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
Samfirm PC app
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Nope.

Yet again, someone who hasn't read the OP
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
You are right. I was thinking of V2 U1. Att is not on samfirm, my bad.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Ahh. It can be easy to get mixed up when they're only off by a few letters :)
[Samsung Galaxy S10+ Guides, News, & Discussion] johnwayne27:
Ill give in lol att v2 link here.

Grab the asf6 big file then the att userdata

https://androidfilehost.com/?w=files&flid=296267

---------- Post added at 03:41 AM ---------- Previous post was at 03:40 AM ----------

I must have hit my head on something :(
[Samsung Galaxy S10+ Guides, News, & Discussion] LexApp:
Thanks. So can you ELI5 the process of converting my Verizon S10 Plus to 100% U1 devoid of everything Verizon. I don't need any of their services.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
ELI5?
[Samsung Galaxy S10+ Guides, News, & Discussion] LexApp:
Explain like I'm 5
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Well, basically, you just need to flash U1 firmware.

If you're brand new to flashing Samsung firmware, I'd really recommend finding several of the "beginner's guide to Odin flashing" type posts/threads that are here on XDA, and reading them. It's a very good idea to learn as much about it as you can, before diving in to something like this
[Samsung Galaxy S10+ Guides, News, & Discussion] LexApp:
Thanks, I think can handle Odin very well. I just want to be clear about what I need to flash to convert my Verizon to U1 version, so I can get rid of the bloatware and startup Verizon stuff. Can you point me to the U1 firmware and would my current Verizon firmware/bootloader version need to match the U1? Thanks
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
You can get it from SamFirm, and yes, bootloaders always need to match, any time that you do any Samsung flashing, no matter what model it is
[Samsung Galaxy S10+ Guides, News, & Discussion] LexApp:
I'll check that out. Thanks
[Samsung Galaxy S10+ Guides, News, & Discussion] neilfairall:
It's a Reddit sub!
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Ahh. I don't frequent Reddit as much as I should haha
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Anyone of y'all folks interested in a new build for carrier branded S10+? It's August security patch and it does have night mode. It's the next build T-mobile is gonna go ota with ???
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Does it have bootloader 2 also?
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Yes sir and it's a B build

---------- Post added at 11:52 PM ---------- Previous post was at 11:51 PM ----------

https://firmware.science/download?url=00000/0000/SS-G975USQU2ASGC-to-U2BSGJ-UP

---------- Post added at 11:52 PM ---------- Previous post was at 11:52 PM ----------

Only can be flashed from build ASGC
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
I believe installing OTA zip via recovery also wipes data, so that users are aware. I know for sure it does on all AT&T models - not 100% sure if it applies to all models, but I'm pretty sure it does.
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Yeah might for others but me having Sprint it does NOT wipe
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Ahh, good to know
[Samsung Galaxy S10+ Guides, News, & Discussion] dinopeyton:
haptic feedback,night mode qr scanner all working
[Samsung Galaxy S10+ Guides, News, & Discussion] kangi26:
It does apply to all models, BUT you can force stop the wipe when using the Update.zip files. After flashing as soon as you see -

Script succeeded: result was [/system]

Hold power and volume down at the same time to shut phone off and it won't run the factory reset script. But you have to be fast when doing this.
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
So apparently only sprint doesn't wipe. Works just fine for me when applying via sd card.

---------- Post added at 06:52 PM ---------- Previous post was at 05:54 PM ----------

Anyone have a version that can be flashed from ASGB?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
That would only be possible if the carrier(s) that got SGB also get(s) SGJ
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Yeah, it's based off ASGC only right now cuz that's what T-mobile is gonna go ota with here soon
[Samsung Galaxy S10+ Guides, News, & Discussion] dv8ed:
Is it possible to lock CSC to XAA?

When I put my Red Pocket AT&T SIM in it notifies me carrier update change reboots phone now I’m on XAR Cellular South?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
the only way to leave it on XAA is to never put a SIM card in it
[Samsung Galaxy S10+ Guides, News, & Discussion] dv8ed:
I could of sworn my S9+ showed XAA but if you’re saying it doesn’t anymore then I’ll accept as is. Weird out of all CSC’s Red Pocket AT&T it chose XAR.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Yeah I thought that was weird too
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
I probably know the amswer but, if i flash ASGC (without userdata, and using Home_CSC) via odin and then use the BSHJ update zip will i still recieve sprint ota's?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Assuming that you mean SGJ, you'll get whoever's updates matches your current firmware. But if you install an update that your current firmware's carrier will never get, then they'll think you have an "unsupported/unofficial" software version, and you won't get OTAs at all.

So if you currently have Sprint firmware, then you'll never get OTAs if Sprint doesn't also get the same SGJ update. If they do get that update, then you'll eventually get an OTA notification for whenever the next update comes around.

Hope that make sense.
[Samsung Galaxy S10+ Guides, News, & Discussion] ShortCircuit865:
Hey Guys! (man its been so long since I was on XDA, used to be here all the time back in the HTC G2 and Nexus 4 days)

I got an Verizon S10+ today and the first thing I did was go looking for something like this thread. Now unfortunately the owner before me updated it to from what I can tell the Verizon FW version update that came out sometime between July and now (G975USQS2ASGB)

Which I'm guessing is the reason my odin is failing to patch the U1 file when it says

"<ID:0/007> Firmware update start..

<ID:0/007> NAND Write Start!!

<ID:0/007> SingleDownload.

<ID:0/007> abl.elf

<ID:0/007> FAIL! (Auth)"

and my phone says SW Rev Check Fail is because Odin isn't going to let me "downgrade"

Do I have this right or am I missing something?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Nope, you have it right
[Samsung Galaxy S10+ Guides, News, & Discussion] ShortCircuit865:
I figured as much

So, are my options to just wait for U1 FW release that post dates mine and avoid updating my phone to any Verizon FWs until then? (I kind of don't want to have to wipe my phone at the point and would much rather do it now before I've transferred all of my stuff over.

Or is there a way for me to downgrade my existing FW? Even to a potentially earlier Verizon version?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Well you can't have both Verizon firmware and U1 - have to choose one or the other. If you choose U1, then no, you don't need to wait. You just have to flash a current version instead of the old version that you were trying to flash previously. If you choose U firmware, then you might be able to downgrade a version or two - I don't remember offhand which build it was that kicked in bootloader 2
[Samsung Galaxy S10+ Guides, News, & Discussion] ShortCircuit865:
Let me try to clarify.

I'm trying to go from Verizon firmware to -> U1 FW. Trying to do that using the FW file in the OP of this thread didn't work because my current FW is a higher rev number than whatever that one is.

https://updato.com/firmware-archive-select-model/?q=SM-G975U1&exact=1&r=XAA&v=&rpp=15

Looking at this site for XAA FWs (which is what I understand to be the unlocked US FW ... tho I may be wrong) It looks like the latest one is for May which predates my existing FW and thus it should still be impossible for me to flash right? and thus there's no way for me to go to U1 FW in my current state? Or is there?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
You are correct in that you can't flash something from May. Not because it's older, but because it's an older rev/bootloader.

You absolutely can go to U1 in your current state - I already clarified that in my previous post. You just have to flash a version that matches your current rev/bootloader
[Samsung Galaxy S10+ Guides, News, & Discussion] ShortCircuit865:
I think I see what you mean now

If my boot loader is currently showing `G975USQS2ASGB` could you help me verify that this link is indeed the correct U1 FW that I'm looking for? And or is there a better/different site I should download from? the samfirm tool doesn't seem to work for me and this site requires a user account and stuff which I'd rather not do

https://www.sammobile.com/samsung/g...e/SM-G975U/USC/download/G975USQS2ASGB/284360/
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
SamFirm works perfectly fine. I'd really suggest you read the various posts/threads on it
[Samsung Galaxy S10+ Guides, News, & Discussion] webwolf89:
I flashed ASGB, but received ASGF a week later via OTA, which is more or less a security patch. So feel free to use ASGB one if there is no newer available. Once you flash it you'll continue to get normal OTA updates, I guess.

However I had some issues using samfirm, I don't remember which. I think I couldn't find the appropriate firmware and it was behaving strangely, which is very possibly my fault. But Frija worked flawlessly. I used model name SM-G975U in the Model field an XAA in the CSC.
[Samsung Galaxy S10+ Guides, News, & Discussion] todd3835:
ATT pushed out ASGK, Aug 1st patch with Aug 8th kernel build.
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Sprint pushed BSGJ. August security patch
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Stats after Sprint BSGJ update.
[Samsung Galaxy S10+ Guides, News, & Discussion] methogod:
Has anyone successfully converted a SPRINT s10+ to ATT, U version... need newer ATT fimrware, since the SPRINT version is newer then anything out there.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Conversion is easy. Just need to follow the steps in the OP
[Samsung Galaxy S10+ Guides, News, & Discussion] Wired4Fun:
It's a perfectly reasonable question, as I am also struggling to identify exactly which one....

Might I suggest entering the term 'Odin' into the search bar, and then note how many results show up, and you will see it's a fairly cumbersome task to filter thru them all to to identify which version is recommended.

Side Note:

With ALL due respect to the OP, and while fully expressing my utmost appreciation for his efforts and contributions to this online community, I would like to respectfully request that he consider introducing this information into the OP, as I strongly believe it will save a LOT of time for countless future visitors to this thread. Thanks in advance for any consideration to that request.

EDIT:

After reading thru approximately 75 posts, I was able to confidently identify that 'Odin 3.13.1_3B_Patched' appears to be the best version for flashing these files.
[Samsung Galaxy S10+ Guides, News, & Discussion] Wired4Fun:
Perhaps a silly question, but is it a safe assumption that this firmware does NOT work for the Verizon 5G varient???

If not, is there a bloat free version available??
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
5G is G977U so no you cant flash any other firmware except G977U firmwares. From my sources there is no U1 version so might have to pick a carrier version. I know sprint XAS is bascially bloat free if thats a firmware option.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
The Sprint model is G977P, so you can't flash Sprint firmware to a Verizon model
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
Have you tried it? Im pretty sure you can. Just like going from G975U to U1 or like s7 G930V to P.

Unless there are hardware differences between the sprint and Verizon it should work.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
You clearly haven't read my thread on US 5G models
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
I have not read it can you please link it so i may read i only saw the thread you posted about the combination firmware.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
XDA puts a link to all the threads that a user has started, in their profile, under Statistics
[Samsung Galaxy S10+ Guides, News, & Discussion] awireless:
thats where i looked
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
So then you saw the link that says "Find all threads started by iBowToAndroid", yes?
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Just to mention, in the mobile app that's not an option. Its web version only.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Ahh good point. I hardly ever use the app
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Maybe they could add the feature. Would be nice
[Samsung Galaxy S10+ Guides, News, & Discussion] Wired4Fun:
Beat me to it...