yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Watch] Gwa2panpan:
Hello All and thanks for the tuto.

I tried to change the CSC and had many hours of reading the different posts but unfortunately, I failed and need your help :

Initially, I had SM-U825U with the following CSC :

AP: R825USQU1CUD1

CP: R825USQU1CUD1

CSC: R825UOYN1CUD1

I started the process with the COMBINATION-FT40_R825USQU1ASL2 but was not able to complete the download, it failed at the end, I read that it was not a problem and we can continue the process

Then I flashed only the CSC "CSC_OXA_R825FOXA1ASI7_usr.tar.md5" as mentioned in the Step#13b, I got a success

But after on the Step#16, it is mentioned: your watch shall start normally

The problem is my watch never restarted (I selected recovery in the options), I then decided to flash the stock ROM "R825FXXU1ASI7_Tizen".

I got then in my watch :

AP: R825FXXU1ASI7

CP: R825FXXU1ASI7

CSC: R825FOXA1ASI7

But the FOTA didn't work

After looking at the last posts I found the following files:

COMBINATION-FT55_R825USQU1AUA4_clean

R825FXXU1CUA5_Tizen_4File_CSC (OXA)

When I flash the COMBINATION-FT55_R825USQU1AUA4_clean I have a success, then I started to delight me ... for a short time unfortunately

After flashing the CSC_OXA_R825FOXA1CUA5_usr.tar.md5 of the step Step#13b, I got the same issue on Step#16, the watch does not restart, keep locked on that :

Finally, I had no other choice than to flash the last ROM I was able to download (from the PC): R825FXXU1CUA5_Tizen_4File_CSC (OXA)

But I'm still not able to get the FOTA of the last update: R825FXXU1CUE3

It got until the end of the process and when the watch restart it says the update is not possible and go to a Samsung shop ...

Could you help me and tell me what I did wrong please?

BR

Panpan
[Samsung Galaxy Watch] edufri07:
Hi All ! Hi @Gwa2panpa !

While I'm still waiting for someone to recommend what combination of files I must to use to switch CSC to my GwA2 SM-R825U (Tizen 5.5.0.2), @Gwa2panpa Would you so kindly to explain me why you highlight CSC: R825UOYN1CUD1 and CSC: R825FOXA1ASI7 in your watch data ? Are they the CSC region codes ?

As I said in my post, my english limitation make very difficult for me to understand it and makes me feel very insecure to flash.

From already thank you very much !
[Samsung Galaxy Watch] edufri07:
Samsung SM-R825U Firmware | Stock ROM | Flash File Download

Download Samsung SM-R825U Firmware. In this page you will find all the Samsung Galaxy latest Stock firmware for your Samsung SM-R825U device.If you want to flash your device with the newest Firmware downloading You can download the latest firmware for free & easily.

a2zrom.com

Can be @Gwa2panpan ?
[Samsung Galaxy Watch] Gwa2panpan:
Hi edufri07,

I highlighted OYN and OXA to show the differences, they are multi-csc :

OYN contains the following CSC : ACG AIO ATT BST CCT GCF LRA SPR TFN TMB TMK USC VMU VZW XAA XAS

And OXA, I don't have the detail but it should contain the CSC XEF (as I leave in France).

Then OYN was not suitable for my region, ECG and blood pressure monitor were not working.

If you want to do it, be sure because on my side the FOTA is not working anymore, therefore I don't have the last update for my watch ... by the way @adfree could you help me please?
[Samsung Galaxy Watch] Gwa2panpan:
Thank you @edufri07 , but unfortunately this is the firmware were I came from, I would like to have the last one for the SM-R825F and not U version.
[Samsung Galaxy Watch] edufri07:
Hi @Gwa2panpan ,

Fortunately I just arrived from an assistance center of my mobile network provider (city 70 km from mine) where I loaded the data through QR code (they didn´t send me by email) and the watch picked up the network and it is working very well.

I don't know if you have BP and ECG working, but I did it a while ago with the method of @Dante63 without having to make any CSC changes.

I'm still not sure what combination of files I´d have needed and if they should contain inside the CSC code that I want to change, I think so but I'm not sure.

I don´t need anything else but it would be a great help if we could backup, save or upgrade (or whatever it is called) the firmwares that we have on our watches in order to share it.

Thank you very much anyway !
[Samsung Galaxy Watch] stefanopola:
Hi all.

There are many posts of people (not only italians) owning a German or other foreign version of the LTE watch and asking how to change their CSC and firmware to allow for TIM (local service provider) e-sims to work. In this thread there are answers and solutions for almost ANY question which have been submitted apart from the one I reported. Wondering why.....

I'm joining that "queue": does anybody know the *correct* combination files, firmware version CSC code, etcetera needed to accomplish that task?

I was able to do that last year on a TIzen 4 watch (but don't remember much) but now Samsung support has reconditioned my watch watch to Tizen 5.5.0.2, R835FXXU1CUE3, SM-R835FSKADBT.

Thank you in advance to anyone who will take care of stuck italian fellows ;-)
[Samsung Galaxy Watch] lubberz69:
u tha goatt
[Samsung Galaxy Watch] danergo:
Hi, Guys.

I have successfully changed the CSC on my GWA2 (SM-R825F) by using these files:

ownRISK-FT40_R825USQU1ASL2_repair_v1.tar

AP_R825FXXU1ASI7_usr.tar.md5

BL_R825FXXU1ASI7_usr.tar.md5

CP_R825FXXU1ASI7_CL1263214_QB13943174_SIGNED.tar.md5

CSC_OXA_R825FOXA1ASI7_usr.tar.md5

I have changed the CSC into "BTU" (For having SPAY)

Now, my watch's screen died, and I did a factory reset, and gave to the service centre.

They have fixed it, and now it arrived back to me with Tizen5.5.0.2, and the CSC change method doesn't seem working anymore.

In the step of recovery, it can't start, and put itself into soft-boot-loop. I can escape from it by reflashing NOT the combination but the other original files.

I don't have USB cables, cradles, or anything. Can I somehow change the CSC still?

I found a newer combination firmware which is for R835, but for Tizen5.5.

Can I use that on my R825? Again, this is the combination, not the original firmware.

If I use this combination, and change CSC, can I continue with the above shown original firmware files?

Thank you guys!
[Samsung Galaxy Watch] danergo:
Guys, please advise.

I used a newer stuff:

1.) Clean start: reflashed the CUA5 (OXA) version (all 4 files).

2.) Started the watch, paired to phone, initialized.

3.) Reboot, flashed the combination (new one: COMBINATION-FT55_R825USQU1AUA4_clean.tar and CSC from CUA5)

4.) Tried booting into recovery, but it always reboots (your watch shall start normally -> NO it doesn't).

I can reflash anything, but not able to boot into recovery mode therefore I'm not able to execute root commands at all.

I really hate sasmung. They are WAY too bad for legal stuff and customer care too. And now what? I have an expensive (was) watch which most used feature (by me) SPay is not available, and since it's over 2 years old, literally noone really cares with it. So bad :/
[Samsung Galaxy Watch] danergo:
Do we have knowledge on how (or by whom) these combination files are created?

With my many years of experience I think it won't be too hard to recreate my own version but I haven't found any resources. Maybe @adree?

Thx
[Samsung Galaxy Watch] danergo:
Ok, as I can see, there are a few files which are different between Tizen4 and Tizen5 combinations.

It seems all the combination mystery is just copying the files together, and modify some of them to have su in /sbin or so.

What is interesting: "csc.img" in combinations are way smaller than in original versions. Why?

Also, there are two extra files: "nad_fw.bin" and "nad_refer.bin". What are those files and where are they coming from?

Thx
[Samsung Galaxy Watch] danergo:
Hi!

By any chance, anyone is having this:

COMBINATION FT55 R825FSQU1AUE1​

?

I don't refuse paying for this, but only if I can use it :)

Thanks!
[Samsung Galaxy Watch] edufri07:
Excuse me ! I don't speak english very well. Could this site has the one you need ?

Galaxy Watch Active2 Cellular (44mm) | SM-R825FFull stock firmware, full Repair firmware, Factory firmware, Combination firmware for Samsung Galaxy Watch Active2 Cellular (44mm) | SM-R825F – Full Stock Firmware Download (FSFD)

www.fullstockfirmwaredownload.com
[Samsung Galaxy Watch] danergo:
Sorry buddy, these seem to be original stock firmwares and I am looking for the combination fw. Thanks anyway!
[Samsung Galaxy Watch] adfree:
Please.

Somebody can share this AUE1 Combination Firmware?

COMBINATION-FT55_R825FSQU1AUE1.tar.md5

Thanx in advance.

Best Regards
[Samsung Galaxy Watch] shaikkhayyum1998:
I had did each step and flashed the given AP,BL and CSC file by changing protocode from NEE to XAR but it is getting flashed into Sweden version and getting Samsung pay Sweden. Also no updates were available for the watch software. I had got a US region file in the form of EF file but i don't know how to flash it, any solution?
[Samsung Galaxy Watch] Gwa2panpan:
Hi all,

I'm not able to flash anymore my watch to get a new version of the firmare, it says the files are not supported :

<ID:0/001> 192.168.49.1

<ID:0/001> Odin engine v(ID:1.0000)..

<ID:0/001> File analysis..

<ID:0/001> SetupConnection..

<ID:0/001> Initialzation..

<ID:0/001> Set PIT file..

<ID:0/001> DO NOT TURN OFF TARGET!!

<ID:0/001> Get PIT for mapping..

<ID:0/001> Get PIT Transmission

<ID:0/001> Firmware update start..

<ID:0/001> SingleDownload.

<ID:0/001> cm.bin

<ID:0/001> NAND Write Start!!

<ID:0/001> param.bin

<ID:0/001> meta-data/

<ID:0/001> Fail : Not supported files

<ID:0/001> Removed!!

<OSM> All threads completed. (succeed 0 / failed 1)

Any Idea ?
[Samsung Galaxy Watch] Gwa2panpan:
Ok, I finally managed to flash my watch and get FOTA update working ...

If it can help I tell you what I did :

1 - I flashed : COMBINATION-FT55_R825USQU1AUA4_clean.tar

2 - I flashed : R825FXXU1CUA5_Tizen_4File_CSC (OXA)

3 - On Galaxy Wearable I searched for the last update which is R825FXXU1DUK2

I don't know why in the past FOTA was not working (it was the R825FXXU1CUE3 at this time), maybe the last release of 2021-12-09 solve it ... :)
[Samsung Galaxy Watch] luigilouis:
Good day everyone!

I apologize for the inconvenience on non-working days, and wish you all the best for the New Year!

Please, give me an advice.

I need to change the region of GWA2 from the Czech Republic to the United Kingdom (reason: SamsungPay + Curve Card). I have honestly studied all the discussion threads, tutorials and videos. However, I am not sure that I have selected the correct files for the application.

Parameters of my watch:

Galaxy Watch Active 2(0513)

Model SM-R820

sérial number RFAMA08CKFA

version One UI 2.0

version Tizen 5.5.0.2

software R820XXU1EUK2

SM-R820NZDAXEZ

version Knox 2.5.0

SE pro Tizen 2.0.0

TIMA 3.0.0

Ready-to-use files:

R820XXU1BTG1_Tizen_3File_CSC (OXA)

COMBINATION-FT55_R820XXU1ATJ1.tar.md5

Will these files be suitable for use on my GWA2?

Thanks so much for your willingness!

EDIT:

Only if anyone is interested, the above Combination firmware is usable, the latest stock firmware to date 9.2022 is R820XXU1DUA3. Both can be downloaded here https://xdaforums.com/t/galaxy-watch-active-2-sm -r820-soft-bricked.4260605 / in post # 11, thanks to @adfree.
[Samsung Galaxy Watch] Palatipzaza:
I have successfully changed the CSC to XAR.

And everything work fine. (OTA ,SPay ,ECG ,BP and others work fine. esim not tested because on my country can't activate esim by myself)

I tried to do it many times. until found a method that works. and still the best result because everything works fine.

- Galaxy watch active 2 LTE

Thank you.
[Samsung Galaxy Watch] leemlller:
Guys help me understand

Seems Taiwan overall.

i want to change Region to SER

So COMBINATION is FT55_R820XXU1ATJ1.tar.md5.7z ? Right?

And final Firmware is R820XXU1DUA3 ?
[Samsung Galaxy Watch] M1KE):
bought on ebay live demo sm-r825x but for some reason when the watch is turned on shows sm-r820x, when trying to flash on some firmware sm-r825F, there are always errors - Re-Partition operation failed. How they can be normally upgraded to a working model. Thanks
[Samsung Galaxy Watch] neogabes:
Hello, I have an galaxy active 2 44mm LTE from deutch CSC and I live in France (firm R825FXXU1DUK2).

NFC and LTE don't works.

If i do this flash, coul'd I have after, the upgrade working from samsung to the last firmware in my country (CSC XEF)?

THX
[Samsung Galaxy Watch] sullivan2002:
Hi to all,

I gave my Samsung Active 2 835F to customer care cause an issue coming out, a big red triangle that seems that water get in the watch

I gave them, I reset my smartwatch before giving to them, there were inside a Brasilian Firmware maybe I don't remember.

Now they gave me back a new one they said to me cause was still in warranty

Now I have the same problem, I CAN HAVE LTE BUT NOT SAMSUNG PAY

So I have to put again the Brasilian Version but first I want to ask you if I could extract and backup the original Germany Firmware from it or not

Thanks
[Samsung Galaxy Watch] adfree:
Seems we have chance for SM-R835F Firmware OXA Region ASI7:

https://xdaforums.com/showpost.php?p=82605519&postcount=280

But I can not download...

I get no Email...

:confused:

Best Regards

Edit 1.

Strange...

Tested several times with no Email received...

Now Error Message with:

Please provide a valid email address.

:confused: :o

Edit 2.

[MENTION=10813423]Benno83[/MENTION]

Please check Link...

I can not download... :o
[Samsung Galaxy Watch] Benno83:
Good Morning,

The link worked for me. It went straight to junk mail. After clicking on the link it redirected me to the download link. All files are there and netodin passes the md5. I can upload to an alternative if this doesn’t work for you. I couldn’t wireless flash due to a previous combination firmware issue that makes the wireless mode crash. Oddly though, the combination firmware boots fine. In the boot menu I also have access to all options and wireless AP connects but then wireless connects crashes (red text on watch) and netodin displays “rqt write fail”. I’ll try making a pogo jig unless you know of a way to fix it through adb/sdb.

Cheers
[Samsung Galaxy Watch] adfree:
[MENTION=10813423]Benno83[/MENTION]

Thanx for info. :cool: :good:

If you want we can try to reanimate Download wireless...

If I understand correct...

A

You flashed SM-R830 files instead SM-R835F files...

Can you post please Photo or Text from Odin Screen...

Example:

https://xdaforums.com/showpost.php?p=73607036&postcount=1

Example 2:

ODIN MODE
PRODUCT NAME: SM-R810
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Custom
REACTIVATION LOCK: ON
Secure Download : Enabled
CARRIER_ID:
WARRANTY VOID: 0 (0X0000)
AP SWREV: B:0 K:0 S:0
Secure JTAG Disabled!!!

B

Combination Firmware runs and you can connect via SDB/WiFi ?

Then we could try to repair wrong partitions with dd Command...

Combination Firmware have ROOT access...

C

You can write Private Mail to me...

At the moment it looks like you NOT need USB cable...

High chance to restore correct partitions via dd Commands over WiFi SDB...

Best Regards
[Samsung Galaxy Watch] Benno83:
R835FXXU1ASI7.zip File

I have uploaded to files and will PM you the link as i cant post external links yet.

What commands would be used to fix via SDB.

I have full SDB access and Root

Thank you for your help.
[Samsung Galaxy Watch] adfree:
[MENTION=10813423]Benno83[/MENTION]

Need some time to check partition PIT and need to wait for Download finish... so I can prepare "repair package"...

Meanwhile can you please check Odin (Download Mode) screen

Example

ODIN MODE
PRODUCT NAME: SM-R810
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Custom
REACTIVATION LOCK: ON
Secure Download : Enabled
CARRIER_ID:
WARRANTY VOID: 0 (0X0000)
AP SWREV: B:0 K:0 S:0
Secure JTAG Disabled!!!

It is important to me to be 100 % sure which Bootloader is now on device...

To prevent "funny" mistakes... :D

Best Regards
[Samsung Galaxy Watch] Benno83:
ODIN MODE
PRODUCT NAME: SM-R830
CURRENT BINARY: Samsung Official
REACTIVATION LOCK: OFF
Secure Download : Enabled
CARRIER_ID:
WARRANTY VOID: 0 (0X0000)
AP SWREV: B:1 K:0 S:0
[Samsung Galaxy Watch] Mahtuerso:
I have problem to change CSC on Galaxy R-800... does anyone have the files to downgrade by the new method with NetOdin? I can't find an updated post about it, thanks in advance!!! :)
[Samsung Galaxy Watch] wiwi94:
OTA update fail

Hello,

I'm french I bought my watch on Amazon.de so I followed your tutorial to change de region from DBT (germany) to France (XEF).

Now I got Samsung Pay but I can't use it due to "forbidden modifications done by the user"

And when I apply the last update (R825FXXU1ATA1) from the app Wearable, when my watch reboot I got a message "update failed, retry later".

Somebody got any clue ? Or a link to the new firmware R825FXXU1ATA1 ?

Thanks.
[Samsung Galaxy Watch] wiwi94:
2nd attempt IT WORKS!!

I've redone all the steps and now everything work thanks a lot!! :good:

I used the bad CSC file the first time.

You should specify which one to use in your tutorial (OXA not TEST).
[Samsung Galaxy Watch] Daaraen:
I have the SM-R825F with a German Branding and successfully changed the SCS to Austria in order to use LTE connection.

This video tutorial works great and I followed all the steps mentioned there (same as in this thread but easier to follow).

youtube.com/watch?v=EyaGf31T6Xc

Additional notes:

1) When loading the Combination Firmware with NetOdin (COMBINATION-FT40_R825USQU1ASL2.tar) I received an error in NetOdin (Failed) at the end of the process - This is because it is a US-Version which contains different files. Nevertheless, the watch boots without problems and you can continue the process.

<ID:0/001> 192.168.49.1

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/001> Odin engine v(ID:1.0000)..

<ID:0/001> File analysis..

<ID:0/001> SetupConnection..

<ID:0/001> Initialzation..

<ID:0/001> Set PIT file..

<ID:0/001> DO NOT TURN OFF TARGET!!

<ID:0/001> Get PIT for mapping..

<ID:0/001> Get PIT Transmission

<ID:0/001> Firmware update start..

<ID:0/001> SingleDownload.

<ID:0/001> cm.bin

<ID:0/001> NAND Write Start!!

<ID:0/001> dzImage

<ID:0/001> dzImage-recovery

<ID:0/001> param.bin

<ID:0/001> sboot.bin

<ID:0/001> ramdisk.img

<ID:0/001> ramdisk-recovery.img

<ID:0/001> rootfs.img

<ID:0/001> system-data.img

<ID:0/001> user.img

<ID:0/001> csc.img

<ID:0/001> modem.bin

<ID:0/001> keystorage.bin

<ID:0/001> nad_refer.bin

<ID:0/001> nad_fw.bin

<ID:0/001> up_param.bin

<ID:0/001> meta-data/

<ID:0/001> Fail : Not supported files

<ID:0/001> Removed!!

<OSM> All threads completed. (succeed 0 / failed 1)

2) When applying the Stock-Software after changing CSC with push and pull commands, make sure to load all files in NetOdin (AP, BL, CP, and CSC (Use CSC_OXA_R825FOXA1ASI7_usr.tar))

This worked fine at the first try.

Thanks to [MENTION=1030585]adfree[/MENTION] for helping out.
[Samsung Galaxy Watch] adnshah:
So what do I do if i have a SM-R805N???
[Samsung Galaxy Watch] adnshah:
the links in the tutorial are not working
[Samsung Galaxy Watch] somyac:
I confirm - was able to change DBT to XEO (unbranded), Poland, Orange works ok.
[Samsung Galaxy Watch] adnshah:
Can you please guide me on how to
[Samsung Galaxy Watch] adfree:
[MENTION=273216]adnshah[/MENTION]

Please remember this is SM-R825F and SM-R835F...

You have as it seems

So what do I do if i have a SM-R805N???

Looks like you have Korean OKA region device?

Something like this?

https://easy-firmware.com/index.php?a=downloads&b=folder&id=35894

Best Regards
[Samsung Galaxy Watch] somyac:
I was able to change csc code using tutorial on the first page, my watch is SM-R825F
[Samsung Galaxy Watch] adnshah:
Ys you are right, itvis korean KT lte version. So how do I get it to connect to any esim
[Samsung Galaxy Watch] adfree:
[MENTION=273216]adnshah[/MENTION]

Maybe very close to impossible...

Problem A.

"We" have no SM-R805N for study...

Yeah, "we" could buy...

Anyway...

99,9 % it leads to similar result:

https://xdaforums.com/smartwatch/galaxy-watch/csc-change-sm-r815u-convert-to-sm-r815u-t4063853

This is Problem B...

:(

Best Regards
[Samsung Galaxy Watch] amitdon:
Can someone share the link for downloading R825FXXU1ATF2 as we don't wanna spent money downloading through easyfirmware ... Pls help here....
[Samsung Galaxy Watch] neokronos:
Can you send me the links for the files? Thanks!!
[Samsung Galaxy Watch] adfree:
Based on this Combination Firmware for SM-R825US:

COMBINATION-FT40_R825[COLOR="Red"][B]US[/B][/COLOR]QU1[B]ASL2[/B].tar.md5

I removed 1 folder:

meta-data

With file inside:

1.mf

Repacked without MD5 check:

ownRISK-FT40_R825USQU1ASL2_repair_v1.tar

Use at your OWN RISK!

https://www.file-upload.net/download-14143394/ownRISK-FT40_R825USQU1ASL2_repair_v1.7z.html

Best Regards
[Samsung Galaxy Watch] jefrymm:
<ID:0/001> 192.168.49.1
<ID:0/001> Odin engine v(ID:1.0000)..
<ID:0/001> File analysis..
<ID:0/001> SetupConnection..
<ID:0/001> Initialzation..
<ID:0/001> Set PIT file..
<ID:0/001> DO NOT TURN OFF TARGET!!
<ID:0/001> Get PIT for mapping..
<ID:0/001> Get PIT Transmission
<ID:0/001> Firmware update start..
<ID:0/001> SingleDownload.
<ID:0/001> cm.bin
<ID:0/001> NAND Write Start!!
<ID:0/001> csc.img
<ID:0/001> dzImage
<ID:0/001> dzImage-recovery
<ID:0/001> keystorage.bin
<ID:0/001> modem.bin
<ID:0/001> nad_fw.bin
<ID:0/001> nad_refer.bin
<ID:0/001> param.bin
<ID:0/001> ramdisk-recovery.img
<ID:0/001> ramdisk.img
<ID:0/001> rootfs.img
<ID:0/001> sboot.bin
<ID:0/001> system-data.img
<ID:0/001> up_param.bin
<ID:0/001> user.img
<ID:0/001> RQT_CLOSE !!
<ID:0/001> RES OK !!
<ID:0/001> Remain Port .... 0
<ID:0/001> Removed!!
<OSM> All threads completed. (succeed 1 / failed 0)
<ID:0/001> 192.168.49.1
[Samsung Galaxy Watch] Dante_33:
SM-R835F same as R825F?

Hello,

I am looking to change my region from XSA to XEF but every guide I look at talks about SM-R825F?

My watch is a SM-R835F.

Tizen version:

4.0.0.7.

Software version:

R835FXXU1ATD7

SM-R835FSKAXSA

Is the combination firmware the same between the R825F and R835F.

I am guessing no, but there seems to be not sign of the SM-R835F other than on my wrist. :confused:
[Samsung Galaxy Watch] adfree:
[MENTION=10894089]Dante_33[/MENTION]

Welcome, but please check again Thread... especially this post:

https://xdaforums.com/showpost.php?p=82580235&postcount=38

According to your infos... you want from OLB Region:

http://fota-cloud-dn.ospserver.net/firmware/XSA/SM-R835F/version.xml

To OXA...

Because XEF is inside this OXA package...

I will upload...

Please, better you differ between SM-R825F and SM-R835F.

To prevent "funny" surprices... like bricked Watch. :D ;)

Best Regards
[Samsung Galaxy Watch] Dante_33:
Sorry, It didn't come up in the search bar...

I am not entirely sure that I have fully understood, but I am guessing that with all the right files, if I follow the guide it should work.

The combination file that I downloaded, the file name is R835USQU1. Does it matter that my watch is currently R835FXXU ? Is there no difference between the U and F ?

(I wasn't sure whether to make a new post or not as I don't want to hijack this one)
[Samsung Galaxy Watch] adfree:
Stock Firmware for SM-R835F... OXA Region:

https://www.file-upload.net/download-14145872/R835FXXU1ASI7.7z.html

Best Regards
[Samsung Galaxy Watch] adnshah:
Lets use my N for studies, you tell me what to do and I will follow. I also have a 815U :) with the same problem and we can work on both
[Samsung Galaxy Watch] amitdon:
hi [MENTION=1030585]adfree[/MENTION] do you have R825FXXU1ATF2 Tizen 4File

https://easy-firmware.com/index.php?a=downloads&b=file&id=277630
[Samsung Galaxy Watch] adfree:
[MENTION=8771555]amitdon[/MENTION]

Sorry, I have this Firmware NOT.

Be carefully... this is OLB region or something like this.

Best Regards