yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S10+ Guides, News, & Discussion] skeetari:
I'm on beta 1. Can I just jump to beta 3 or do I have to update to 2 and then 3?
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
The updates are incremental so you need to install them in order.
[Samsung Galaxy S10+ Guides, News, & Discussion] Dart_Z28:
Thank you thank you
[Samsung Galaxy S10+ Guides, News, & Discussion] skeetari:
Thank you. Can you post update 2 so I can download it please and thank you.
[Samsung Galaxy S10+ Guides, News, & Discussion] mopartonyg:
Read through some of the threads, its easy to find; https://xdaforums.com/s10-plus/how-to/android-10-beta-mega-mirror-t3990851
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Lol. I was about to post that link. Imo thats the easiest place to get all the updates because i always update post #1 with new links rather than have them spread across several pages.
[Samsung Galaxy S10+ Guides, News, & Discussion] mopartonyg:
Yes you do, it's the best place to find all the updates. Thanks warrior.
[Samsung Galaxy S10+ Guides, News, & Discussion] magicmckinney:
Here is the direct link for beta 3 U1. https://mega.nz/#!gcglnaiD!b1BL5rIZSnKKbJtG1UddJySofXGRT93K6sFwdibd5TQ
[Samsung Galaxy S10+ Guides, News, & Discussion] NotATreoFan:
The last ATT will always say that. It just means the phone was originally sold by ATT. You can flash U1 firmware in order to get rid of carrier bloat, but you may lose WiFi Calling and RCS messaging. If done correctly, you will see XAA/XAA/ATT.
[Samsung Galaxy S10+ Guides, News, & Discussion] leonardo3264:
ZSK9 (Beta 4) is out!
[Samsung Galaxy S10+ Guides, News, & Discussion] x017in:
For U1?
[Samsung Galaxy S10+ Guides, News, & Discussion] skeetari:
Link?
[Samsung Galaxy S10+ Guides, News, & Discussion] rtarv321:
It's available on Firmware Science, just downloaded it.
[Samsung Galaxy S10+ Guides, News, & Discussion] MrHomebrew:
Beta 4 U Link

https://firmware.science/download?url=00000/0000/SS-G975USQU2ZSK3-to-U2ZSK9-UP
[Samsung Galaxy S10+ Guides, News, & Discussion] Nbpataky:
Anything on beta 4 for the unlocked s10+?
[Samsung Galaxy S10+ Guides, News, & Discussion] leonardo3264:
Nothing yet.

Patiently waiting on [MENTION=3689059]Wacky2bakky[/MENTION]! :)
[Samsung Galaxy S10+ Guides, News, & Discussion] Nbpataky:
Patiently indeed
[Samsung Galaxy S10+ Guides, News, & Discussion] Benjnast:
Does anyone have an a link to BSIC firmware?
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
Showed up on my G975U1 on Friday morning. I'm in the beta.:)
[Samsung Galaxy S10+ Guides, News, & Discussion] Nbpataky:
Wish I was lucky enough to register my phone to get ota. Usually someone post the OTA files here.
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
Patiently waiting for Beta 4
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
Just lucky I guess. It still ha most of the really annoying bugs. Try to register again alot off people dropping out.
[Samsung Galaxy S10+ Guides, News, & Discussion] ar3a51st:
Flashing the U1 Unbranded firmware will remove carrier bloat, but it will NOT affect SIM lock status <<<<< does that mean I can install the U1 on my locked S10+?
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
Yes you can.

---------- Post added at 09:51 PM ---------- Previous post was at 09:50 PM ----------

You can still register for beta on U1??
[Samsung Galaxy S10+ Guides, News, & Discussion] ar3a51st:
ok I installed the ui firmware. how ever I do not see any Verizon bloat & boot log. but 2 things are missing the 4g icon next to wifi & when I go to check updates it says this

Your software is up to date

with a bunch of numbers

Security patch level October 1 2019
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
It's worth a shot. Install Samsung members be on U1 and you may be able to get the beta. If you're not on the official beta you can't get OTA.
[Samsung Galaxy S10+ Guides, News, & Discussion] ar3a51st:
I did that & nothing rebooted phone, cleared cache & tried again same thing. so I guess im not lucky
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
Keep trying if it's what you want. I don't have any better suggestion.
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Here's U1 ZSK3 to ZSK9. Sorry been busy this weekend.

https://drive.google.com/file/d/1UZPVy6oHpXKg0mhNrJgEJ5a12WVjLZCd/view?usp=drivesdk
[Samsung Galaxy S10+ Guides, News, & Discussion] Nbpataky:
Thank you very much!
[Samsung Galaxy S10+ Guides, News, & Discussion] le0.br4zuc4:
You sir, are a superstar!
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
Thank you so much!
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Beta 4 on the U1 with Sprint has added many more CA(carrier aggregation) profiles. There were only 4 or 5 previously on U1 firmware but a bunch more on U firmware. Now there's even more on U1.
[Samsung Galaxy S10+ Guides, News, & Discussion] x017in:
How do you access this
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
##DATA# (##3282#) in the dialer, tap "Edit" and enter 000000 as the MSL, tap "LTE" then "CA Enabled". Both U and U1 is the same instructions. This dialer code only works with a sprint sim installed.
[Samsung Galaxy S10+ Guides, News, & Discussion] vasa111:
Cant seem to get it to update
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
Interesting the latest on U1 is November security patch build "2BSIV" and I don't know why 4G icon is not next to wifi.

---------- Post added at 03:39 PM ---------- Previous post was at 03:36 PM ----------

Yeah I noticed that as well, I am on Boost. (Sprint)

What does this mean though?
[Samsung Galaxy S10+ Guides, News, & Discussion] Nbpataky:
Looks like another update is about to come out.
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
How do you know?
[Samsung Galaxy S10+ Guides, News, & Discussion] Nbpataky:
Beta 5 just came out for exynos.
[Samsung Galaxy S10+ Guides, News, & Discussion] leonardo3264:
ZSKF appears to be out!

You got the notification [MENTION=3689059]Wacky2bakky[/MENTION]?
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
I see I see. Currently only out for F models. Hasn't been released for U models. I'll keep an eye out
[Samsung Galaxy S10+ Guides, News, & Discussion] ombheembush:
Beta 5 out for Snapdragon
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
No link yet, but the update is rolling out to locked devices and unlocked.
[Samsung Galaxy S10+ Guides, News, & Discussion] Tyzing:
I have an unlocked S10+ on the Sprint network. Samsung says they still don't know when a update is going to be rolling out to fix my data issues (I can't get any data and bands are jumping all over the place). It looks like the S10+'s on VZ's network are running well....is it worth me trying that when the image is available? Right now my phone isn't usable if I'm not on wifi or while I'm driving.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
S10+s are known for bad signal - I've seen a couple articles lately. VZW firmware is available - and has been for a month. But flashing it will probably make the phone stop working altogether, due to how the phone handles activation on the CDMA networks. If you're on Sprint, you need to either have Sprint firmware, or U1
[Samsung Galaxy S10+ Guides, News, & Discussion] Turax:
I'm new to flashing, sorry, but does flashing my sprint s10+ to a U1 flash make it able to accept any carrier for service?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Nope, it just changes the software. Network/SIM unlocking goes much deeper than software
[Samsung Galaxy S10+ Guides, News, & Discussion] Turax:
Can you refer me to a direction if that is my goal? If it helps, this s10+ again is a sprint specific phone, not activated on sprint's network. model number is sm-g975u.
[Samsung Galaxy S10+ Guides, News, & Discussion] Antny6:
[MENTION=320479]NotATreoFan[/MENTION]

You may want to update the "for the" description on AFH. It says "for the Samsung Galaxy S10 (all variants)(SM-G97xF)".

---------- Post added at 05:37 PM ---------- Previous post was at 05:26 PM ----------

On the first or second page, somebody said (or at least implied as he was talking about T-mobile) that flashing the U1 firmware, then the USERDATA file for the carrier you're using will remedy this. He said the only drawback is that you will not be able to take OTA updates-- you'll have to update it via the same method each time.

All my prior dev experience has been using HTC phones...so don't take my word-- actually search for the post and read it :)

EDIT: found it-- member is [MENTION=4160825]kcsevo[/MENTION] -- verify with them that this would indeed fix your issue.

---------- Post added at 05:42 PM ---------- Previous post was at 05:37 PM ----------

You guys should see [MENTION=4160825]kcsevo[/MENTION] posts starting with #21. Double check with them, but I think this would fix this too.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
I own a business that offers that type of service - and a lot more. We can do AT&T S10s, but we're still working on developing the method for the other carriers. Hopefully soon :)
[Samsung Galaxy S10+ Guides, News, & Discussion] elite-fusion:
You quoted me but didnt answer my question LOL.... what is RSC?
[Samsung Galaxy S10+ Guides, News, & Discussion] kcsevo:
Hi all. The CP file will give you back RCS. Userdata will give you video calling. Dont for get I'm TMO so I'm not sure for any other carrier.
[Samsung Galaxy S10+ Guides, News, & Discussion] verks7:
Hi all, hope I can get some help. I bought a s10+ from Samsung directly. It was the att model. I got it unlocked. I just switched to T-Mobile. Works fine. I want to flash it to the TMO firmware. I follow all instructions. I have a T-Mobile sim in the phone. I’m still getting the att splash and bloat. Strangely the tMobile visual voicemail app is there. I assume that’s from the sim. I factory reset the device, flashed the userdata, double checked everything. I reset it again. I flashed it a few times with no luck.

What am I missing...
[Samsung Galaxy S10+ Guides, News, & Discussion] TechSilver13:
Are you wiping data and cache from recovery after the flash?
[Samsung Galaxy S10+ Guides, News, & Discussion] mastibeta:
The way i did it... flash the unlocked firmware...then reboot and flash tmo.
[Samsung Galaxy S10+ Guides, News, & Discussion] Ace42:
It's like a successor to SMS/MMS, so iMessage lite for Android. Works between users on same network.

https://www.theverge.com/2018/12/12...saging-explainer-what-is-google-chat?&ampcf=1
[Samsung Galaxy S10+ Guides, News, & Discussion] elite-fusion:
Thanks. Thats probably why the Note 8 from Tmo sent sms/mms to my spouse faster than the S10+ which is the unlocked model.

So if I flash the CP file only, I'll get the RCS back? Will it factory reset the phone or I can avoid the backup? Hard to back everything up without root and titanium backup :(
[Samsung Galaxy S10+ Guides, News, & Discussion] Ace42:
Odin will wipe phones when using the non home CSC, but you're just doing CP not a full conversion.
[Samsung Galaxy S10+ Guides, News, & Discussion] NotATreoFan:
At the time I uploaded the files, there was not U device option on AFH, so I went with the closest one.
[Samsung Galaxy S10+ Guides, News, & Discussion] NotATreoFan:
Nah, I'm good.

But since you brought it up, you have typos in your thread. The S10 series is G975U/U1, not G973U/U1 as you have them labeled.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Boy, this is awkward.

G970U: S10e

G973U: S10

G975U: S10+

G977U: S10 5G

Edit: Wtf. That doesn't even make any sense. Your own OP says you have an S10+, and the thread is titled "G975U"
[Samsung Galaxy S10+ Guides, News, & Discussion] verks7:
I did that factory data wipe only. So I see I should do the wipe cache partition too?
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
Cache is already wiped if you do "wipe data". The "wipe cache" option is only there for if you want to wipe it independent of data
[Samsung Galaxy S10+ Guides, News, & Discussion] ombheembush:
Saw that on Reddit. I have Verizon, so didn't get the update.
[Samsung Galaxy S10+ Guides, News, & Discussion] rmcomer:
Beta 5 rolling out for the U1 too.
[Samsung Galaxy S10+ Guides, News, & Discussion] MrHomebrew:
Notice any changes in beta 5?
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
just got it OTA on U!. Haven:t had a chance to give it a test drive
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Link for U models. ZSK9 to ZSKF. Don't have my hands on U1 yet.

https://drive.google.com/file/d/1FGP6ZdsI3gutu01cklj8eqHihcOkJqzA/view?usp=drivesdk
[Samsung Galaxy S10+ Guides, News, & Discussion] skeetari:
How big is the file suppose to be?
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
275-290MB, it's a relatively small update compared to the other betas.
[Samsung Galaxy S10+ Guides, News, & Discussion] skeetari:
That's what is was when I downloaded it. So then we are good.
[Samsung Galaxy S10+ Guides, News, & Discussion] Dart_Z28:
Wheres u1 at lol. Existing

Mines on beta 4 has force close and had randomly reset. But its smooth
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
He will eventually upload it just be patient.
[Samsung Galaxy S10+ Guides, News, & Discussion] twoxa:
Got my beta5 yesterday OTA
[Samsung Galaxy S10+ Guides, News, & Discussion] tailgunner9:
Beta 5 https://firmware.science/download?url=00000/0000/SS-G975USQU2ZSK9-to-U2ZSKF-UP

Flash it from Recovery off of file on SD Card.
[Samsung Galaxy S10+ Guides, News, & Discussion] djt3701:
Flashed it from the SD card in recovery and it completed without a problem. Probably just me, but the phone seems a little snappier after the reboot.
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
I seen that earlier, I'm waiting on U1 version.
[Samsung Galaxy S10+ Guides, News, & Discussion] jim262:
Is there a beta 4 for the U1 version somewhere?
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Beta 5 for U1 boyssss. ZSK9 to ZSKF

https://drive.google.com/file/d/1qE0PHADrvK1rWet_T7hKxzhJBUHLAthV/view?usp=drivesdk

---------- Post added at 12:45 AM ---------- Previous post was at 12:39 AM ----------

I must say after flashing the ZSKF build, my phone does seem snappier and I have not came across the annoying black screen after a unlock.
[Samsung Galaxy S10+ Guides, News, & Discussion] jim262:
Does anyone know where I can find beta 4 for U1?
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
ZSK3 to ZSK9 (Beta 4) for U1

https://drive.google.com/file/d/1UZPVy6oHpXKg0mhNrJgEJ5a12WVjLZCd/view
[Samsung Galaxy S10+ Guides, News, & Discussion] leonardo3264:
Thank you very much! ?
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
Good to know, and thanks man!
[Samsung Galaxy S10+ Guides, News, & Discussion] Dart_Z28:
Going to give this a go
[Samsung Galaxy S10+ Guides, News, & Discussion] Nbpataky:
Thanks again.
[Samsung Galaxy S10+ Guides, News, & Discussion] le0.br4zuc4:
As always, thanks mate.
[Samsung Galaxy S10+ Guides, News, & Discussion] Dart_Z28:
So with VLC idk way but when I try to press on the menu for audio etc. It registers previous apps lol. So I have to be carefull and press higher to avoid. Also some widgets, when I try to click on menu it goes to recent apps to. Other than that its smooth. I factory reset when updated to beta 5

---------- Post added at 11:31 PM ---------- Previous post was at 11:30 PM ----------

No complaints just though I share what's on my end. Thanks for the files vato :)
[Samsung Galaxy S10+ Guides, News, & Discussion] JemerJ:
waiting on incoming next beta update ZSKJ
[Samsung Galaxy S10+ Guides, News, & Discussion] troyan503:
hola tengo el s10+ g975u de att pero no recibo actualizaciones tengo parche de seguridad 1 mayo y quiero saber que firmware puedo cargar para recibir actualizaciones
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
I just received notification and downloaded latest beta ZSKJ so far so good, but it's only 5 minutes.
[Samsung Galaxy S10+ Guides, News, & Discussion] skeetari:
Let us know what you think.
[Samsung Galaxy S10+ Guides, News, & Discussion] JemerJ:
waiting for someone to upload OTA (ZSKJ) zip. :) :)
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
A little more stable than the previous 5 beats, but still not showing notifications in the app drawer. Dark mode is a pleasure. Battery drains pretty fast.

Really didn't expect 6 in less than 1 week, maybe they're getting ready get final release.
[Samsung Galaxy S10+ Guides, News, & Discussion] troyan503:
I have the variant g975u of at & t but I don't receive updates, can I change to a U1 version for example T-mobile or another?

Or could I change to another variant within the same U? I need help :/
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
You can. I did, just follow the instructions in the OP.
[Samsung Galaxy S10+ Guides, News, & Discussion] Dart_Z28:
My google messenger force closes.

When I use the screen shot and took a few sonot was a long screen shot.

Then I shared it and it force closed. Then I try to view it and it force closed. Like clicking on the person that I sent it to. Closes that way lol
[Samsung Galaxy S10+ Guides, News, & Discussion] x017in:
Hey, were you able to capture beta6 for U1?
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Beta ZSKF to ZSKJ for U:

https://drive.google.com/file/d/1uJWMQYfkCS-ux-3iPHtV__RtMskIcLJZ/view?usp=drivesdk

Beta ZSKF to ZSKJ for U1:

https://drive.google.com/file/d/1Opu8oOFijmCWW4rv-1KZAvTKzVUPzgHj/view?usp=drivesdk
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Samsung is really on their game this year. Beta 7 (ZSKL) just dropped lol
[Samsung Galaxy S10+ Guides, News, & Discussion] x017in:
Will you be able to post links pls for beta 7
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
I got u buddy ?

ZSKJ to ZSKL for U device:

https://drive.google.com/file/d/1RGZa0z1AUqWorZQL5uQYR2TDCyARAdDB/view?usp=drivesdk

ZSKJ to ZSKL for U1 device:

https://drive.google.com/file/d/1nTvx3GttQgUL_Rhc0Uab1h4Oq2P6GDqD/view?usp=drivesdk
[Samsung Galaxy S10+ Guides, News, & Discussion] JemerJ:
Wooohoooo! Finally! Thanks man!
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
Beta 7 for U1 out OTA
[Samsung Galaxy S10+ Guides, News, & Discussion] x017in:
That's the link up
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
Yes I know but as I said I get mine from the beta and it seems to be better than the previous.
[Samsung Galaxy S10+ Guides, News, & Discussion] Decree:
I'm assuming you can jump beta versions, right? I'm on SKF and I'm assuming I can just straight to SKL
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Nope. Need to be installed in order
[Samsung Galaxy S10+ Guides, News, & Discussion] Wacky2bakky:
Nope cuz certain builds are based from specific builds. U will have to flash the ZSKF to ZSKJ update which is the Beta 6. Then u will have to flash the ZSKJ to ZSKL update which is the Beta 7.
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
If you jump versions you might brick the phone
[Samsung Galaxy S10+ Guides, News, & Discussion] x017in:
Naah.. the system doesn't allow jumping. It just won't install
[Samsung Galaxy S10+ Guides, News, & Discussion] yeltrah123:
Wow I haven't been following this thread for 3 days and 2 new betas have been released in that time period. Samsung is really on their game this year, time to update now lol. Thanks [MENTION=3689059]Wacky2bakky[/MENTION]
[Samsung Galaxy S10+ Guides, News, & Discussion] le0.br4zuc4:
It won't brick, it simply won't flash. You'll get an error msg saying that you don't have the correct firmware currently installed on your phone
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
I stand corrected. Thanks for the information.
[Samsung Galaxy S10+ Guides, News, & Discussion] syde1020:
i just purchased a s10+. I want to get rid of the t-mobile boot screen and gain the android 10 gestures. I'm not new to flashing, but i am new to samsung flashing. Can i just download the unlocked beta 10 firmware and flash it? The part that is confusing me is that ive seen several posts mentioning tmo userdata and CP file along with the unlocked firmware. Will i have to download 2 different zips or can i just flash the unlocked firmware, flash and be good?
[Samsung Galaxy S10+ Guides, News, & Discussion] sw1173:
Follow the instructions in the OP to get to the latest version of U1 and then start the process to get to beta 7. Unless you can join the official beta program from Samsung Samsung you will have to go through the whole process. Read all the posts there are no shortcuts.
[Samsung Galaxy S10+ Guides, News, & Discussion] jim262:
What you need to do first is get a carrier unlock. Once it is unlocked, download the modified Odin. Then flash the the latest U1 9.0 software. Then download each beta, starting with one through seven and place them on the root of your sd card and install them one by one. There are a number of posts that lists specifics on this website.
[Samsung Galaxy S10+ Guides, News, & Discussion] Dart_Z28:
So my problem is my signal it keep going away. After a clean install. Call of duty mobile keeps loosing signal
[Samsung Galaxy S10+ Guides, News, & Discussion] syde1020:
Ive successfully flashed g975u1 firmware on my tmobile s10 plus. Will i still get OTA updates from samsung? I noticed im on the October update and when i check the updater it says in up to date. When i run frija it shows theres an update. Shouldnt the OTA detect it and download it?
[Samsung Galaxy S10+ Guides, News, & Discussion] Toxel:
I bought a Unlocked AT&T but do not use AT&T as am not in US and i don't get VoLTE / Wifi Calling enabled with my carrrier (which natively supports VoLTE in my country). If i flash U1 firmware will these get unlocked for use with my carrier since AT&T sim restrictions for VoLTE / Wifi Calling don't apply?
[Samsung Galaxy S10+ Guides, News, & Discussion] neonarc:
I'm using S10+ Unlocked from USA in Mexico with Telcel. I get VoLTE / WiFi but only after activating with Telcel and only with a contract plan, they told me they won't activate with a prepaid number. I have also used with TMobile and Verizon rom and it works perfectly.

I don't know which country you're in but hopefully this may help you.
[Samsung Galaxy S10+ Guides, News, & Discussion] Mu5ic92:
Can G975USQS2BSI4 be flashed only through odin or sd card as well in recovery?
[Samsung Galaxy S10+ Guides, News, & Discussion] jim262:
There are basically only two ways to flash stock firmware. Full firmware files need to flashed through Odin and update files from and SD card in recovery.

ADB can also be used to apply an update files in recovery. Full firmware files flashed with Odin are done in bootload mode using a PC. For complete step by step instructions, there are multiple posts on this describing the process.
[Samsung Galaxy S10+ Guides, News, & Discussion] rick20vt:
Hi guys i have a g975u1 with XAA CSC, Do u lnow if i can install g975u from China with CHC csc?, china have a newer firmware version that allows Fast 25w charge in s10+
[Samsung Galaxy S10+ Guides, News, & Discussion] Bxrider117:
I don't know the answer to your question but I've been using the 25 watt charger with my S10+ and it filters charge my phone faster than the regular charger. Even when I plug it in three charge times are shorter with the 25 watt charger.
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
There is no such thing as "G975U from China".

Chinese model numbers are always different from USA model numbers
[Samsung Galaxy S10+ Guides, News, & Discussion] rick20vt:
My mistake, correct módel is g9750 CHC
[Samsung Galaxy S10+ Guides, News, & Discussion] iBowToAndroid:
I can almost guarantee that American firmware isn't gonna be compatible with a Chinese phone