yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Watch] Huy.tq:
You should not do anything that you are not sure about. you need to know what file is needed for your watch and you need to clearly describe your current CSC and what it wants to change and what you want. For example, you want to get tizen 5.5 and have BP, ECG active

---------- Post added at 04:29 PM ---------- Previous post was at 04:09 PM ----------

For you R825FXXU1ATA1 CSC OXA https://drive.google.com/file/d/1144sk3tE4lNaiYcLuUPlXpURRekdqQDF/view?usp=drivesdk

Software for extract .EF file https://drive.google.com/file/d/1-HhjdSteZ7ITyofod-sXhVotStJ_lGaQ/view?usp=drivesdk (n

Note: you can turn off firewall and anti-virus software)
[Samsung Galaxy Watch] Marcos Queiroz:
Hi. Tks.

I would like changer CSC to ZTO then my Active 2 LTE (R825F). Anyone can help me? Only I found the sales combinations to (R8 3 5
[Samsung Galaxy Watch] Huy.tq:
Combination file for R825F in link guide this https://xdaforums.com/showpost.php?p=83390843&postcount=14

Note: Korea had update to tizen 5.5.0.1 for LTE version on date 07/10/2020

https://doc.samsungmobile.com/SM-R825F/LUO/doc.html
[Samsung Galaxy Watch] ang89gunner:
I can fix it

Step#12: Flash COMBINATION-FT40_R825USQU1ASL2.tar.md5 File

Step#13b: Flash CSC_OWO_R825FOWO1ASI5_usr.tar.md5 File (Brazil FW)

...if you flash CSC Stock rom Brazil you want CSC ZTO you not do it step Step#15 - Step#26.. pass to Step 27...

Step#28: Flash stock firmware BL, AP and CSC and press start (not Tick auto Reboot)

..finish step 28 Click Reset Odin And connect to Flash CP File (Tick auto Reboot)

Step#30: in my case after reboot asked me to update new firmware via OTA
[Samsung Galaxy Watch] AustinNg:
went back to R825FXXU1ATA1 and decided to try again, except this time i did OTA check without connecting to my phone and it went through, damn thanks for your help bruh hehe :))
[Samsung Galaxy Watch] Marcos Queiroz:
Hello. Thanks for your help. But I downloaded the files on the link but they came in fractional terms. I couldn't load them on Odin. Can you send the link with the assembled files or is there another way to upload them?
[Samsung Galaxy Watch] loni90:
I finally got it to work with your files!

I have brazilian FW with tizen 5.5.0.1 and ECG & BP working!

Amazing!

I followed the steps below and it worked.

The biggest difference is not to restart after installing BL, AP and CSC which is said in step #29. Just reset NetOdin and install CP.

Dont install any apps, just install the update. For the first time i saw the TIZEN logo on my watch, which i didnt do before.

Next question:

Works perfectly on my Samsung S10, but my mother uses iPhone, is it possible to install Health Monitor on Apple? Or is that even needed not that ive installed everything. Maybe just reset the phone, and connect to mothers iphone with Samsung Wearables and Samsung health installed?

Thank you, somehow this method fixed it for me!

The biggest change was not restarting in step #29 but just reset NetOdin and install CP.

Thank you very much!
[Samsung Galaxy Watch] Huy.tq:
congratulations!

You can see guide get ECG, BP on nonsamsung phone here: https://xdaforums.com/smartwatch/samsung-galaxy-watch-3/enable-ecgbp-featur-samsung-phones-t4168567
[Samsung Galaxy Watch] loni90:
Thank you very much for your help through my whole process.

this guide is very good, but i guess its for non-samsung android phones...so no iphones?

is it still possible to install it on an iphone?
[Samsung Galaxy Watch] Huy.tq:
I am using Samsung S10plus so I don't try with iphone. As far as I know of xiaomi phone users, oneplus installed successfully and have ECG, BP. Basically, ECG.tpk and BP.tpk file after being signed separately, it will be installed on the watch without samsung phone and need to connect with SHM app on phone to use it. If you can install SHM on your iphone, I think it can work.
[Samsung Galaxy Watch] srijan4:
Seeing these responses, I decided to try this again.

First, I tried the whole process again without restarting between steps 28 and 29. But, this did not work for me :( . Still got the same error when trying to update.

Next, I again tried the whole process, with three changes:

1. Skipped step 15 (selecting recovery after combination firmware). [ Note that I was skipping steps 16 - 26 even in earlier trials, because CSC file was matching ZTO ].

2. Did not restart between steps 28 and 29.

3. Did not connect watch to phone or to LTE network, rather checked for OTA from the watch itself after connecting to WiFi.

This worked for me :victory:. Received the 2 updates from the watch itself and then connected to phone. All features working!

Hopefully, this experience can help someone else. Thanks to everyone involved.
[Samsung Galaxy Watch] Huy.tq:
There is an update available for R835 (LTE) CSC ZTO on date 10/13/2020 but R825 is not available

https://doc.samsungmobile.com/SM-R835F/ZTO/doc.html
[Samsung Galaxy Watch] srijan4:
Got the update for R825F today. OTA worked via phone successfully.

View attachment 5115461
[Samsung Galaxy Watch] jurastefo:
Hi gentleman someone who has good experience with change region XAR to Brazil on GWA2 Bluetooth version R820, what about ECG/ BP.Are boths working fine? With autosync to SHM. I am little nervous change region again. I dont want any trouble.
[Samsung Galaxy Watch] ari360:
I followed the steps and on Step#12 each time I get an fail error
[Samsung Galaxy Watch] ps2pspgood:
Hi,

I would like to try to change my csc from US to Brazil.

But my model is US R835U. I cannot find the stock firmware for this model. Can I just use the firmware that you provide with the tutorial? Is R835U the same as R835F?

Also my Tizen is already updated to 5.5.0.1.

My software version is:

r835uskvxar

r835usqu1bth9

I would very like to change it and enable the BP and ecg functions.
[Samsung Galaxy Watch] Huy.tq:
hi you, if your version is R835U then you can use my combination and stock firmware file (R835F) to change CSC to ZTO (Brazil). NOTE: The file combination R835U and R835F are the same. And when you change CSC to ZTO your watch will be R835F just like me. when you change CSC to XAR your watch will be R835U
[Samsung Galaxy Watch] ps2pspgood:
Hi,

Thank you for your info. I will try to do it now. Hopefully, I could get things right and have BP and ECG working...

After changing CSC, do I need to side load the bp and ECG? Because my phone is xiaomi 9t pro.

Thank you very much Huy.tq

Best regards!

.
[Samsung Galaxy Watch] Huy.tq:
If you use non samsung phone. You should watch this post https://xdaforums.com/showpost.php?p=83719755&postcount=2919
[Samsung Galaxy Watch] ps2pspgood:
Hi,

I have followed the methods in that post. But, I can only get ECG works. BP cannot be installed and just hidden in the watch.

So... After I change the CSC to Brazil and side load again, I will find the ECG and BP. Right? Should I update to the latest version after I flash your firmware? Right now I am in latest version in US. Sorry for many questions... I am new to this watch. I just got it yesterday for the BP and ECG function.

Thank you very much Huy.tq.
[Samsung Galaxy Watch] Huy.tq:
If you have a Samsung phone from android 7 and above then when you change CSC to ZTO (Brazil) you will get BP, ECG working after updating to tizen 5.5. If you do not have a Samsung phone, there is no solution to activate BP for the LTE version, you have to wait for tizen 5.5 for the country not approved for BP and then you should move to that country and install it, set BP.tpk signed so BP will work without being hidden. Another information said that maybe some countries will be tizen 5.5 starting from October 23 on. If I know I will share with you

Best regards!
[Samsung Galaxy Watch] ps2pspgood:
Hi,

I went to Step#15: go down so "recovery" is selected and then hold down the HOME button until black screen appears.

After I flash the CSC in your stock firmware, I try to boot into recovery.

But... the watch start to factory reset automatically. After booting up, the watch told me to pair with my phone. So, I did it.

After resetting, I open debug mode and use sdb to open root. However, it shows operation denied...

How do I fix this? I stuck at step 15...

By the way, my CSC has already changed to ZTO. The BP and ECG is working but I cannot use samsung pay, spotify, and watch system update in the samsung wearable.

Also, Where should I use the "combination" firmware?

Thank you very much.

Best regards.
[Samsung Galaxy Watch] Huy.tq:
Step#12: Click on AP in NETODIN and select the file from the combination firmware, when NETODIN has finished checking the file, press the start button.
[Samsung Galaxy Watch] ps2pspgood:
Hi,

I tried the method that you mentioned. But the netOdin give me error... Fail to upgrade firmware...

The following log showed.

<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)

And... After the watch won't boot up... Stuck at the Samsung Gaxaxy watch Active 2.

Could you help me to solve this??

Thanks!

Updated:

I have found a way to flash it and successfully to change CSC to ZTO. (Method is stated in the following post)

But...... BP still not work.

Updated again 10/21:

I managed to sideload the bp.tpk and ecg.tpk. Finally, they are working with my Xiaomi 9t Pro!

The key point is to run recovery once before sideload any tpk. I do not know the mechanisms though. :)

If there is anyone failed to sideload bp.tpk on Tizen 5.5.0.1, you can give recovery a try~
[Samsung Galaxy Watch] dimkit:
i have carefully read all the thread . I have bought the galaxy active 2 from germany and now i can not make it work with LTE in GREECE.

So i want to change my CSC to my region CSC EUR (OXX REGION ). I will follow the procedure but i am missing some files .

1. Netodin and SDBStarterKidv1 link from first post is not working .

2. I have downaloded the combination firmware FT40_R825USQU1ASL2.tar

3. But from my stock firmware i can not find R825FXXU1ATF2_Tizen_4File_Multi CSC (OXX).EF , which is for my region .

So can somebody confirm me first that thats are the correct files for my watch( R825F XXU1ATD1 current firmware ) and 2nd can some body give the links for downloading the files

i get an error to combination firmware installation any thoughts ?

<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)
[Samsung Galaxy Watch] ps2pspgood:
Hi,

You encountered the same issue as me.

I have found a way to solve it.

First, use 7zip to open the combination firmware. Unzip all the file.

Then, repack all the file except the meta-data folder to .tar. (DO NOT CHANGE BACK TO .MD5 OTHERWISE IT WON'T WORK)

Finally, use net odin 3 read it as AP and press start.

It seems that the meta-data is redundant. I have done it successfully. You can try.

Best regards.
[Samsung Galaxy Watch] Huy.tq:
exactly what you say. You will see a meta-data error when flashing with the combination file. But no problem, I have encountered this error so many times when changing the CSC on my watch. and on the guide post also says this. You really need root access to change the CSC so we flash the combination file. The fact that you cannot use the BP file is because you don't have a samsung phone so BP is hidden but you still have the normal ECG set because it has the same BP file as I said in the previous post.
[Samsung Galaxy Watch] ps2pspgood:
Thank you so much for the help! I have successfully got all the functions to work properly!

I sideload the bp.tpk and ecg.tpk. Finally, they are working with my Xiaomi 9t Pro!

The key point is to run recovery once after flash the stock firmware before sideload any tpk. I do not know the mechanisms though.

If there is anyone failed to sideload bp.tpk and failed to use pkgcmd to uninstall it on Tizen 5.5.0.1, you can give recovery a try~

Thank you so much Huy.tq. I can now enjoy those new features. :)
[Samsung Galaxy Watch] Huy.tq:
Congratulations, enjoy it. You can explain more clearly in this sentence "the key point is to run [COLOR =" Red "] recovery [/ COLOR] [/ B] once after flashing the stock firmware before sideload any tpk" means you When the recovery flashed the firmware stack file, the watch is now at tizen 4.0.0.6 (ZTO Brazil), right. If someone has upgraded to 5.5 without using the pkgcmd command to delete the original BP, try with recovery to be able to delete the BP file and reinstall BP.tpk, ECG.tpk
[Samsung Galaxy Watch] ps2pspgood:
I will write down my case here.

Before any modification and flash, my GWA2 is R835U LTE USA with CSC is US. The Tizen version is 5.5.0.1. My phone is Xiaomi 9t Pro.

I tried to sideload the bp.tpk and ecg.tpk, but bp dose not work. Therefore, I decided to change CSC to Brazil.

1. I follow the methods provided by Huy.tq.

2. There will be an error in Step#12. Therefore, Use 7zip to open the combination firmware. Unzip all the file.

Then, repack all the file except the meta-data folder to .tar. (DO NOT CHANGE BACK TO .MD5 OTHERWISE IT WON'T WORK)

Finally, use net odin 3 read it as AP and press start.

3. After flashing according the process mentioned above, your CSC is now changed to Brazil ZTO.

4. Update your watch to the latest Tizen 5.5.0.1 through your phone.

If you directly install bp.tpk here, it will give you -1 error. If you perform any remove command trying yo uninstall bp.tpk, it will show some kind of -4 operation denied error.

5. I re-flash the CSC from the stock again (maybe this is unnecessary).

!IMPORTANT!

6. Hold home button until reboot shows. And click home button three times to enter boot menu. Select Recovery by holding home button. Let the watch to reset and it will restart again.

7. Pair with your phone and turn on the debug mode on the watch. Connect to the WIFI that your computer is connected to. Reboot the watch.

8. Use SDB 2.2.60 and run ansicon.exe. Type

sdb connect (your watch's IP)

. After connecting, prepare the signed bp.tpk and ecg.tpk. You can find the methods to signed the tpk here.

9. Type

sdb install bp.tpk

and

sdb install ecg.tpk

. You may see some "rm remove write only tpk" error message. Ignore it and press Ctrl + C to continue. Do not close the CMD.

After all the return val is OK, then you are done.

10. Check the app on watch and install the modded SHM in your phone and connect to your watch. After calibration, you can enjoy all the functions! Cheers~ :)

This was my case with R835U and Xiaomi 9t Pro. Hopefully everyone can open and enjoy the function of your watch!

Thanks Huy.tq for providing many great help and info!

Best Regards.
[Samsung Galaxy Watch] Huy.tq:
Hi you,

You can see CSC Group for LTE here (EURO with group CSC OXA not OXX): https://xdaforums.com/showpost.php?p=81683551&postcount=21

You need know CSC as you want to change. Exemple: DBT (Germany), BTU (England), ITV (Italia), XEF (France), XEH (Hungary),...

check notify update: https://doc.samsungmobile.com/SM-R825F/DBT/doc.html

https://doc.samsungmobile.com/SM-R825F/BTU/doc.html (with Stock firmware R825FXXU1ASI7_Tizen_4File_Multi CSC (OXA)

https://mega.nz/#!9scnEaTJ!RRd9ZHG8h...CfoBkxpsMIiTa8)

Check fota: http://fota-cloud-dn.ospserver.net/firmware/BTU/SM-R825F/version.xml

Link download stock firmware for R825F: https://xdaforums.com/smartwatch/galaxy-watch/hello-update-r825f-t3997463

Link download sdb tool, net odin 3, SHM on phone, SHM on watc,...: https://drive.google.com/drive/folders/1-eMBfzZsxTjws3yhjTs5etrHxGMYEBKw?usp=sharing
[Samsung Galaxy Watch] tak.japan:
Ok I tried following the instruction, and now it only gives me message below... Did I brick the watch??

ODIN MODE
Product Name: SM-A825FS
Current Binary: Samsung Official
Reactivation Lock: On
Secure Download: Enabled:
Carrier_ID:
Warranty VOID: 0 (0X0000)
RP SWREV: B:0 K:0 S:0
Secure JTAG Disabled!!
[Samsung Galaxy Watch] adfree:
ODIN MODE
Product Name: SM-A825FS
Current Binary: Samsung Official
[COLOR="Red"][B]Reactivation Lock: On[/B][/COLOR]
Secure Download: Enabled:
Carrier_ID:
Warranty VOID: 0 (0X0000)
[COLOR="Red"][B]RP SWREV: B:0[/B][/COLOR] K:0 S:0
Secure JTAG Disabled!

[MENTION=643997]tak.japan[/MENTION]

I have marked in red typical "signs"...

IMHO now Download Wireless is locked/blocked/disabled...

USB cable hints:

https://xdaforums.com/smartwatch/galaxy-watch/galaxy-watch-active-2-44mm-sm-r820-odin-t4009587

But check this before:

https://xdaforums.com/smartwatch/gear-s3/wireless-mode-enter-gear-s3-sm-r760-t3710855

Best Regards
[Samsung Galaxy Watch] Huy.tq:
Tizen 5.5 is available for LTE versions in other regions. Everyone check it out

Vietnam: http://fota-cloud-dn.ospserver.net/firmware/XXV/SM-R825F/version.xml

Thailand: http://fota-cloud-dn.ospserver.net/firmware/THL/SM-R825F/version.xml

India: http://fota-cloud-dn.ospserver.net/firmware/INU/SM-R825F/version.xml

Australia: http://fota-cloud-dn.ospserver.net/firmware/XSA/SM-R825F/version.xml

.....
[Samsung Galaxy Watch] TwistyValhalla:
Hoping it arrives in Canada finally..

https://doc.samsungmobile.com/SM-R835F/XAC/doc.html
[Samsung Galaxy Watch] can7:
Does OTA work fine after changing csc ? i cant seem to find a yes or no Definite answer ?
[Samsung Galaxy Watch] RP2005:
For me a clear yes!
[Samsung Galaxy Watch] matlear:
Hi all, on my SM-R825F I followed the first post in the thread and set CSC to ZTO from XEF.

After doing final step I rebooted my watch, paired with my note 20 ultra and got an update instantly to 4.0.0.7.

Unfortunately there doesn't seem to be any more update. How can I check the whole steps I did worked correctly?

Phone is working fine and esim is still installed.
[Samsung Galaxy Watch] adfree:
According to my tiny knowledge...

It seems Tizen 5.5 reached these Regions:

[COLOR="Green"][B]OKA[/B][/COLOR]
[COLOR="Green"][B]OLB[/B][/COLOR]
[COLOR="Green"][B]OWO[/B][/COLOR]
[COLOR="Red"][B]OYV[/B][/COLOR]
OXA [COLOR="Red"]???[/COLOR]
[COLOR="Green"][B]OXX[/B][/COLOR]

https://xdaforums.com/showpost.php?p=81683551&postcount=21

OXX Region with XFA South Africa as example:

http://fota-cloud-dn.ospserver.net/firmware/XFA/SM-R825F/version.xml

https://doc.samsungmobile.com/SM-R825F/XFA/doc.html

R825FXXU1BTI9/R825F[B]OXX[/B]1BTI9/R825FXXU1BTI9

OKA Region Korea SKC

http://fota-cloud-dn.ospserver.net/firmware/SKC/SM-R825F/version.xml

https://doc.samsungmobile.com/SM-R825F/SKC/doc.html

R825FXXU1BTI7/R825F[B]OKA[/B]1BTI7/R825FXXU1BTI7

OLB Region Vietnam XXV

http://fota-cloud-dn.ospserver.net/firmware/XXV/SM-R825F/version.xml

https://doc.samsungmobile.com/SM-R825F/XXV/doc.html

R825FXXU1BTI9/R825F[B]OLB[/B]1BTI9/R825FXXU1BTI9

OWO Region Brasil ZTO

http://fota-cloud-dn.ospserver.net/firmware/ZTO/SM-R825F/version.xml

https://doc.samsungmobile.com/SM-R825F/ZTO/doc.html

R825FXXU1BTJ1/R825F[B]OWO[/B]1BTJ1/R825FXXU1BTJ1

I am tooooooooooo lazy to peek and poke OXA...

[COLOR="Red"][B]
ATO
AUT
BTU
DBT[/B][/COLOR]

[COLOR="Red"][B]EUR
ITV
NEE
PHE[/B][/COLOR]
PHN [COLOR="Red"]???[/COLOR]
[COLOR="Red"][B]ROM
SEB
SEE
TPH
XEF
XEH
XEO
XEZ
XSK[/B][/COLOR]

Maybe somebody else is more motivated... :D ;)

Only as info...

Best Regards

Edit 1.

Short tested... no FOTA for OXA Region...

So no OXA leaked yet...

R825FXXU1BTI9/R825F[B]OXA[/B]1BTI9/R825FXXU1BTI9

http://fota-cloud-dn.ospserver.net/firmware/XSK/SM-R825F/version.test.xml

Maybe it takes 100 years... or maybe faster in 10... :D :rolleyes:
[Samsung Galaxy Watch] adfree:
Seems BTI9 is now online for OXA Region:

https://xdaforums.com/smartwatch/galaxy-watch/sm-r825f-bti9-firmware-t4185071

XEF
DBT

Confirmed by users...

http://fota-cloud-dn.ospserver.net/firmware/XEF/SM-R825F/version.xml

https://doc.samsungmobile.com/SM-R825F/XEF/doc.html

http://fota-cloud-dn.ospserver.net/firmware/DBT/SM-R825F/version.xml

https://doc.samsungmobile.com/SM-R825F/DBT/doc.html

Best Regards
[Samsung Galaxy Watch] Brandon.rush1:
Still getting an error -1 after changing CSC to Brazil and installing bp.tpk, ECG installs but still issue with bp.tpk. Is there maybe an old bp.tpk on the watch still holding it up? Tried the uninstall command I found and get an error -4
[Samsung Galaxy Watch] Anskjer:
Tizen 5.5 is available for LTE versions in Norway.
[Samsung Galaxy Watch] Huy.tq:
Maybe you are using non-samsung phone, so BP is hide on your watch. You can't install BP on firmware Brazil (ZTO)
[Samsung Galaxy Watch] chris.lu:
Is LTE version available in Italy?

I have an original GWA2 with DBT CSC, changed in ITV but if i check, i find OXA.

Now, I have no update in Galaxy Wereable, is there any problems?
[Samsung Galaxy Watch] adfree:
Need help from users with OXA Region and latest BTI9 Firmware.

No idea when and if netOdin files will leak...

Need files from csc.img... we can copy them from Watch:

sdb pull /opt/system/csc/

No Root required.

Please upload for me. :angel:

Thanx in advance.

Best Regards
[Samsung Galaxy Watch] Huy.tq:
I can assist you if I have BTI9 form OXA firmware (Mine is BTI7 OKA). But let me ask, is there a way to pull an app installed on watch acitve 2 to a laptop such as G-Assitant Pro or G-Keyboard Pro? Thanks!
[Samsung Galaxy Watch] SEALANCER:
R825F to R825U or R825F XAR

Need some help & clarifications here.

I have R825F , it was canadian region. Based on instructions given here on the first post and using the same files (COMBINATION-FT40_R825USQU1ASL2 and R825FXXU1ASI7_Tizen .rar) .

Changed CSC to XAR and completed everything. Obviously it dint workout, region instead was set to NEE! ( Seems I used the wrong CSC file which does not XAR config.).

I want to change my region to US/Unlock

What I want to know,

1) Given that combination firmware for 825F and 825U is same , can I apply stock R825U i.e. R825USQU1ATF2.rar.

2) Can any one point me to the right CSC file to be used for XAR region.

I need the latest updates hence I tried flashing new firmware. Right now I get the update for NEE region but it simply fails to update and gives error message to contact customer service.
[Samsung Galaxy Watch] Huy.tq:
Hi you, region Canada had update on tizen 5.5 for R825F https://doc.samsungmobile.com/SM-R825F/XAC/doc.html

check update for region USA (Unlock) https://doc.samsungmobile.com/SM-R825U/XAR/doc.html

Problem is you don't have firmware for Canada or USA region

Currently, you had firmware R825F of OXA region (has CSC NEE Sweden), Did you flash firmware OXA 4 file BL, AP, CP, CSC once times? Or Did you change CSC with process 30 steps?
[Samsung Galaxy Watch] SEALANCER:
I changed the CSC using 30 steps . For step 13b I used this CSC file (CSC_OXA_R825FOXA1ASI7_usr.tar.md5). Rest of the files(BL,AP,CP) after changing the region to XAR ( which dint work of course) through sdb.

Is there any other combination file & stock firmware that I can use to get latest updates including ECG. It is so disappointing I thought I could just slap R825U on it and unlock it altogether. Was under impression hardware is same but firmware is different.