yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Watch 4] adfree:
Dear adfree.

I have tested for you...

Still working in GVH2 Firmware if INU is set as active CSC.

Tested on my rooted SM-R870 GVH2...

Dear adfree. Feel free to ask and I will answer... :alien:

I love you.

Kiss kiss.

Bestest Regards to you...
[Samsung Galaxy Watch 4] yasht007:
I installed samsung pay watch plugin from apkmirror
[Samsung Galaxy Watch 4] rhudsonsamuel:
What about device warranty?

Is it still covered under warranty?
[Samsung Galaxy Watch 4] salvator101:
does changing CSC void warranty especially in India?
[Samsung Galaxy Watch 4] avirendra:
I visited Samsung service center twice to get s/w updated after csc change and they couldn't figure out the change.

Service center guys are not that smart enough to catch it
[Samsung Galaxy Watch 4] _skay_:
After XAA selection & reboot which County you selected?

Are you still getting the updates with XAA?

Also did it bring in BP and ecg features on watch with side load need of app on phone?

Are you still getting the update and after XSG which country you selected?

Avirendra, did you find such way without changing csc?

Also I see you have great deal of posts, inputs and updates here. Appreciate it

I would like to your opinion that which csc would be better to make a choice MEA, XSG or XAA. The latter two are saying they are getting updates. Where as the one your watch 4 is MEA and you aren't getting OTA & have to rely on service center offline updates.

I'm looking forward to change csc on my watch 4 and hence such curious question since this is just one way street to change CSC.
[Samsung Galaxy Watch 4] Advythashok:
Hi, are you using the LTE variant? If so that might explain the lack of updates... because most of the posts I see of people getting the updates are using the BT variant.
[Samsung Galaxy Watch 4] salvator101:
I changed my CSC following this guide

https://www.guidingtech.com/how-to-use-samsung-pay-on-galaxy-watch-in-unsupported-regions/

I am an amateur, I don't know what I did and now I'm worried that I won't get future software updates

I have the bluetooth version of the watch
[Samsung Galaxy Watch 4] _skay_:
@ankushgautam

Did you use CSC as MEA and UEA as country as there are users who aren't receiving updates on using MEA - UEA combo.

Please confirm CSC, Country you chose and if you received latest over the air update or not. Thanks.
[Samsung Galaxy Watch 4] Advythashok:
For me, in CSC change option, there was no XSG, only MEA...so my understanding is MEA then UAE = XSG.
[Samsung Galaxy Watch 4] ankushgautam:
Csc MEA and country i selected was uae.. i have been receiving updates regularly after that.. even i coincidentally received an update just after changing the region and csc as update was the 1st thing i checked after making the change
[Samsung Galaxy Watch 4] _skay_:
@Advythashok

So did you change your CSC as MEA - UAE combo and received OTA updates?
[Samsung Galaxy Watch 4] Advythashok:
I changed it 3 days back, no new updates have been released in that period AFAIK. I changed the CSC after updating to the lates version.
[Samsung Galaxy Watch 4] _skay_:
@ankushgautam

Thanks for quick response, this is helpful.

As this is one-way ticket, I'm not sure which CSC to choose MEA or XSG or XAA and then again country selection would also matter I think.

I'll guess I'll wait for some feedback for a day or two from @avirendra who used same combo but isn't receiving OTA updates and other users @vasantbala and @yasht007 feedback on current status who changed to other CSC and not MEA.
[Samsung Galaxy Watch 4] _skay_:
Yes right, you won't know until new update happens.

And like you I have also updated the watch but just want to be sure before I proceed with CSC change.
[Samsung Galaxy Watch 4] Advythashok:
Also, I don't think there is an option to select XSG using the dialer code trick. There's only MEA.

After you select MEA and reset then reboot.. you can select your desired country..which is UAE, this is XSG.

You can change this region after a reset to any country in the middle east. So each region will give you a different CSC in the middle eastern aka MEA region.
[Samsung Galaxy Watch 4] cakeygiraffe:
Was anyone previously unable to get this method to work and found a fix? Just got one from Amazon with Columbia's CSC, want to change to USA. I can use the dial code to find the CSC, but the one in this thread to change it does nothing.
[Samsung Galaxy Watch 4] vasantbala:
I live in US and I selected US. BP and ECG, Pay works as expected. I don't think I have got updates yet. I am not sure if any updates were pushed out
[Samsung Galaxy Watch 4] _skay_:
So you got your Bluetooth Watch 4 from India, right? Since this dailer CSC change only works on Indian Retail Units.

For the update, can you check under settings on your phone app and share screenshot which version it shows or you get update option?

Also did you had to side load BP and ECG or after reboot they were available by default just like spay after csc change?

Because I guess for MEA it's just Spay and BP/ECG features need side load on both watch and phone.
[Samsung Galaxy Watch 4] _skay_:
Mentioned dailer code only works with India Retail Units with active CSC as INU by default.
[Samsung Galaxy Watch 4] amol8356:
Is there any way to go back to original once I change my CSC?
[Samsung Galaxy Watch 4] evil22:
@adfree, @avirendra, @vasantbala and @yasht007. I have the LTE version of galaxy watch 4 classic, SM-R985F(INU), as updates and spay are working on bluetooth models. Do you have information if LTE works after switching to XSG(United Arab Emirates). As that is the only factor stopping me from doing this change.

Edit: I'm on GVH1 (INU- One UI 4.5) and the code *#272*719434266344# did not work for me. Could you still provide the info though, thanks

Okay so *#272*IMEI# works for me and it does have XSG, should the code be with IMEI only or the one listed above, let me know thanks
[Samsung Galaxy Watch 4] adfree:
Maybe tiny background info....

https://xdaforums.com/t/firmware-an...-csc-change-and.4323469/page-27#post-87543531

Maybe also for others usefull...

If you choose "wrong" unsupported text string... then FOTA Updates not available because they are not on Samsung Server...

They mixed in this Developer/Engineer menu unique CSC and valid on Server with "group" crap...

Funny for Samsung... bad for you.

Only as tiny info...

Best Regards
[Samsung Galaxy Watch 4] Advythashok:
Hi, Good news..just got the latest update on MEA region and XSG country on my GW4 SM-R870 Bluetooth.
[Samsung Galaxy Watch 4] adfree:
CSC INU and Firmware Version GVI3

Code still work.

Really funny. Still no idea why all other CSC blocked and only for "India" enabled...

Still also no other solution found... without Root...

Only as info.

Best Regards
[Samsung Galaxy Watch 4] mrfatiga22:
Dear good day, thank you very much for the information. But I have a doubt, in my country Argentina, Samsung Pay is not supported, so I wanted to change the CSC of my Samsung Pay, but although I managed to make this change, I don't know what credit card I can use, since the banks from my country would not work with Samsung pay. How were you able to solve the credit card issue? Thank you
[Samsung Galaxy Watch 4] peanutcuber:
I have the r895f bought in Israel but it's region locked to eastern/southern eu

How do I change it cuz I cant use the LTE for some reason
[Samsung Galaxy Watch 4] adfree:
At the moment GW4 (mabye GW5 too) splitted into 2 or 3 groups...

Group A

The lucky group.

Users with BT only and/or LTE device(s) from India... or with active CSC INU (aka India CSC)...

They can use these Codes in ALL Firmware Versions as it seems... Frag den Geier warum...

BT only device like SM-R870:

*#272*719434266344#

Look into this Thread... first post...

LTE like SM-R875F:

*#272*IMEI#

Group B.

LTE users with "special" Firmware...

Maybe old older or it was also only India CSC INU... who knows...

*#272*IMEI#

Group C.

IMHO the biggest group with most userS... Nor BT nor LTE...

No solution.

Nothing works... nothing found.

Best Regards
[Samsung Galaxy Watch 4] TDrkKnight:
No creo que puedas, hasta donde se, para que funcione SAMSUNG debe tener el convenio con el banco (por lo menos asi es en Mexico para SAMSUNG/APPLE PAY ).

I don't think you can, as far as I know SAMSUNG has to have an agreement with the bank (at least that's how it works in Mexico for SAMSUNG/APPLE PAY)
[Samsung Galaxy Watch 4] vsreddy:
@Advythashok are you using the LTE variant bought in India? Can you please confirm if updates are working after switching the CSC.

I have the LTE variant, want to use spay and I'm worried about calls.
[Samsung Galaxy Watch 4] rexisrex:
Indian Galaxy Watch 4 Classic BT RM-290 here. the code worked flawlessly. i went MEA and XSG route though it gave all CSC option. i was wary if my Indian credit card will work on US firmware. in the hindsight, if UAE fw used in india allows to add indian CC so should US!. but didnt want to take that chance and get stuck. AS the CSC change to other firmware will make the gsm code useless. the code only works with indian CSC.

now installed mod health monitor app in both phone and watch. (z fold 4 is my phone) ECG and BP works perfectly!. spay allowed me to add cards and good to go. only thing still bothering me is, haven't got a update to make sure FOTA works. right now it checks and says you're up to date. . I'm hoping it will.! on R890XXU1GVI3 which is the latest 12th oct update for XSG i think?! @Advythashok can you confirm this?

overall everything works. Thanks to OP for the code. (fFOTA to be confirmed once it arrives.)
[Samsung Galaxy Watch 4] katheria:
Moved to Watch 4 Classic 46mm from Gear S3 after 5 Years, immediately after first setup found out that SPay is still not officially supported in India on WearOS as well. Changed the CSE to MEA and the region to XSG and doing the setup after wipe reboot, lets see how it goes.

Edit 1: First time setup got stuck after Samsung account setup, watch kept showing "Check your phone for setup," but on the phone it was again searching for the watch. Reboot watch and then trying the setup again.

Edit 2: Setup was successful, SPay app is there. restoring data first.

Edit 3: Sideloaded the Spay Watch plugin and boom I am in all my old cards from Gear S3 are present, restoring them.

Finally back to Spay on Watch 4

Attaching some shots from setup.

Let's wait for next watch update.
[Samsung Galaxy Watch 4] drparvez:
I change csc on my Samsung watch 4 classic bluetooth version, yes i have option of spay but when i open app spay watch plugin is not support in india, then i download mod apk, now i add my card but is not activated. Ni activated card means no use of this whole process. I confirm Indian bank card not able to activate in this way
[Samsung Galaxy Watch 4] drparvez:
Another thing what i found now i can't use BP and ECG app , i am stuck in this stupid thing, no way to get rid of it. Thank a lot
[Samsung Galaxy Watch 4] HalArcane:
Hello guys !

I bought a really cheaply new galaxy watch 4... It turns out it was from another region model is Bluetooth only SM-R890.

I don't know from which region is it only has the option to choose countries like Guatemala, Costa Rica etc.

I actually DON'T CARE about Samsung pay or Google pay, the reason I want to change region is because I do care about Google assistant and when I try to set up Google assistant it tells me that my region's language is not supported, it doesn't matter if I change it to English from the US, it always state that my region's language is not supported and I can't set it up that's why I need to change the region.

I'm from Mexico I tried the code provided multiple times but it doesn't work it simply tries to call from my phone and it tells me the MMI code is not valid....

Anyone help! I just want my Google assistant to work is there a way around? Anyone have any different way to change the country code ?

Thanks
[Samsung Galaxy Watch 4] mrfatiga22:
Did you put the Smartphone assistant in English? Since you should not only put the Smartwatch assistant in English, but the Smartphone assistant as well. And before setting up the wizard, please close it on the 2 devices and then try to set it up
[Samsung Galaxy Watch 4] drparvez:
Now i install mod apk in watch, ecg n BP are working again, but still my card not verified in spay in my watch, in my phone its works well
[Samsung Galaxy Watch 4] shubhandu:
Will wait for your response on updates, I switched the same for Gear S3 to watch 4 classic, Broken Updates are my fear to not moving on which CSC change.
[Samsung Galaxy Watch 4] rexisrex:
I can confirm once i went to MEA and XSG (UAE) everything works. I got the new fw update yesterday and that went smooth as well. You might first want to check if your cards are part of Samsung Pay issuer partner list( screenshot attached .) Not all cards issued by bankers are empanelled with Spay. Also every time you add/activate the cards, you'll have to authenticate it via OTP to registered mobile or email. My cards works perfectly. Also even after adding the cards in watch, not all pos machine works with watch. I got many working and few not going through. Also found that unlike spay in phone, watch needs to be tapped properly on the pos device for it to go through.
[Samsung Galaxy Watch 4] adfree:
Please I still need Help from user with "India" SM-R875F

http://fota-cloud-dn.ospserver.net/firmware/INU/SM-R875F/version.xml

I need few files from:

R875FXXU1GVH1/R875FOXX1GVH1/R875FXXU1GVH1

IMHO no Rocket Science...

https://xdaforums.com/t/firmware-an...-csc-change-and.4323469/page-29#post-87681183

You can contact me via Conversation/PM...

Thanx in advance.

Best Regards
[Samsung Galaxy Watch 4] Adi619:
Hi,

Assuming you own a SM-R890 Bluetooth only model.

I have the SM-R895F & after going to MEA there is no update.
[Samsung Galaxy Watch 4] rexisrex:
Yes I have the BT model. If you have the gsm keep looking for the update. Samsung has a monthly cycle for certain products and 2 months cycle for few. But if this India fw was kept unlocked to change to any csc, then updates from new csc is a given.
[Samsung Galaxy Watch 4] Adi619:
Currently I've sent my watch to samsung for a motherboard swap. Will research before chabging this time. Without Spay, I feel the watch does not live up to it's cost.
[Samsung Galaxy Watch 4] Adi619:
The only issue is how do I identify a csc where spay,ecg,bp are not blocked & LTE works..any leads appreciated
[Samsung Galaxy Watch 4] govindsharma:
Helo Guys I have one question .Can we change region of GW4 LTE and use all features .Some peoples here says to change CSC to UAE and i studied that UAE csc is XSG .But now after updating firmware to latest XSG is outer in CSC list .Like in CSC before updating FIrmware UAE is in MEA .Can anyone clears how to change region of LTE.watch.Thanks in Advance .I have INU and want to change it to UAE.
[Samsung Galaxy Watch 4] p51d007:
Try this link. Works perfectly.

https://xdaforums.com/t/restriction...triction-removed-25th-oct-2022.4322527/unread
[Samsung Galaxy Watch 4] avirendra:
Same for me. I got update installed at Service center just one day before warranty expiry. But no OTA update
[Samsung Galaxy Watch 4] avirendra:
Now Samsung locked the option to change region. if you have option, change to MEA, everything including spay works. But no OTA updates
[Samsung Galaxy Watch 4] avirendra:
Agrees. Spay is great, works fine for me after changing to MEA
[Samsung Galaxy Watch 4] avirendra:
MEA. You can side load modified bp, ecg. LTE and spay works
[Samsung Galaxy Watch 4] Adi619:
I visited the service center but they were not able to update it manually to the latest firmware. I've heard that LYS is a csc that has the updates and spay. Can someone point me to the adb commands to check what csc are available in the watch and what apps are available the csc.

Regards
[Samsung Galaxy Watch 4] avirendra:
Okay. I have GVH1 version with 4.5 UI
[Samsung Galaxy Watch 4] adfree:
With ADB you could look here:

https://xdaforums.com/t/firmware-an...d-csc-change-and.4323469/page-2#post-85549071

https://xdaforums.com/t/firmware-an...d-csc-change-and.4323469/page-2#post-85549197

Best Regards
[Samsung Galaxy Watch 4] govindsharma:
Dear problem is that is UAE (XSG) is avialable in MEA ? then why samsung list this CSC XSG outside MEA ? Picture attached.If i install MEA and there is no UAE then it will not reversible.
[Samsung Galaxy Watch 4] govindsharma:
LYS is also csc of UAE in SM-R875F.But didnot confirm that will all functions are there .You are right LYS has updates.Did you HAve LTE watch ?
[Samsung Galaxy Watch 4] Adi619:
Yes Sir, LTE..
[Samsung Galaxy Watch 4] govindsharma:
Thanks for reply did you changed region of your watch ? Which region you selected and can you tell complete model of your watch after changing it's region.I also want to change region of my watch.Gif attached please tell me which region I select for spay and updates.
[Samsung Galaxy Watch 4] Adi619:
Let's connect in messages. I can help you find out the correct region with OTA's. I got the mobo replaced on my watch too. Will get it in a couple of days. Model SM-R895F
[Samsung Galaxy Watch 4] govindsharma:
Please help me to select correct region .
[Samsung Galaxy Watch 4] josh117:
Hello, i just bought a new watch 4 Bluetooth only ,rm 870.

I want to use samsung pay, if i change the region are there going to be any bricking issues? If no, what region should i change? MEA or XSG?
[Samsung Galaxy Watch 4] govindsharma:
If you want all functions and regular update , then you should change csc to XFA .
[Samsung Galaxy Watch 4] josh117:
XFA ? are you sure ? I haven't seen anyone mentioning XFA till now, i bought this on flipkart recently, can i DM you ?
[Samsung Galaxy Watch 4] govindsharma:
yes
[Samsung Galaxy Watch 4] josh117:
hello can u help me? i have also bought a 870 in flipkart
[Samsung Galaxy Watch 4] yasht007:
How can I help you ?
[Samsung Galaxy Watch 4] josh117:
I want to know which region do i have to change to, inorder to get the spay and get the updates working. It is a rm870 Bluetooth, i didnt get the watch yet ,after i get it i will send the software and firmware information
[Samsung Galaxy Watch 4] yasht007:
@josh117
[Samsung Galaxy Watch 4] josh117:
Thank, one more query, do i gave to select XSG or MEA-> XSG?
[Samsung Galaxy Watch 4] yasht007:
https://xdaforums.com/t/galaxy-watch-all-csc-details.3934522/

Check this thread for CSC codes
[Samsung Galaxy Watch 4] josh117:
@All hello everyone, i have watch 4 rm 870 INU , to get spay and updates what should i choose? MEA or XSG?
[Samsung Galaxy Watch 4] josh117:
Hello bro, i am from India, i need help with changing the watch 4 csc to get the spay, do i have to change it to XSG or MEA-> XSG?
[Samsung Galaxy Watch 4] josh117:
Indian variant sm r870, one ui 4 , bt only, which region to select? Xsg or MEA?
[Samsung Galaxy Watch 4] josh117:
Hello all , got an SM R870 Bluetooth, changed region to MEA - United Arab Emirates, everything is working fine, got spay and updates are working. Have to sideload ECG and BP sometime later
[Samsung Galaxy Watch 4] josh117:
Hello all, i just changed the region on my watch 4 and setup samsung pay, but when i tap the card to any nfc terminal or a phone, samsung health app opens up automatically, this is soo weird. And when i tried to read the data that is being pushed during beaming a card, this is what i got
[Samsung Galaxy Watch 4] anshsharma240:
Go to Settings > Connections > NFC> others > disable Samsung health.
[Samsung Galaxy Watch 4] sam9908:
After CSC change, are you able to use health monitor app (BP and ECG)?
[Samsung Galaxy Watch 4] josh117:
Yes i am able to do all the stuff that people do on an INU watch except for things like some apps don't work, i haven't come across any app that says your region is not supported. Rest everything just works fine. I had to download modded apks for the the ECG and BP
[Samsung Galaxy Watch 4] sam9908:
Thanks for confirmation. I have change CSC and Samsung pay and health monitor (BP,ECG) working fine.
[Samsung Galaxy Watch 4] josh117:
what region did you change to? XSG or MEA?
[Samsung Galaxy Watch 4] sam9908:
MEA
[Samsung Galaxy Watch 4] avirendra:
Bluetooth works fine. Issue is with LTE version
[Samsung Galaxy Watch 4] kiranambati:
Hi guys ,

I tried this method and ableto change CSCversion to MEA. at that time I didnt know this is not reversible.

I want to set the CSC back to INU

Is there way to do this. dialing same number is not working now. it is dialing the number instead.
[Samsung Galaxy Watch 4] josh117:
Yes the process is irreversible, but i want to know what is making you want to go back to INU, there could be solution in future once there are firmwares developed , we can flash as many times as possible
[Samsung Galaxy Watch 4] kiranambati:
Thank you for the quick reply. Nothing much. I got the apps on watch but on phone I realized I need to sideload modded apks which I dont want to do now. So I tried to revert the process and realized my dumb mistake.

When do you think we can see firmwares developed for this? and also do you know how we can flash stock firmware? I used to flash custom roms and stock firmwares on my old phones years ago using odin via USB connection but out of the loop.

Thanks again for the response
[Samsung Galaxy Watch 4] adfree:
At the moment we can go back to INU or any other CSC we want... WITHOUT Root.

Few Details are here:

https://xdaforums.com/t/firmware-an...-csc-change-and.4323469/page-31#post-88030301

https://xdaforums.com/t/firmware-an...-csc-change-and.4323469/page-31#post-88030481

It is no Rocket science... little bit tricky... but not impossible.

Best Regards
[Samsung Galaxy Watch 4] kiranambati:
Thank you @adfree . I will go through the thread.

Thanks for the help
[Samsung Galaxy Watch 4] josh117:
Has anyone tried calls and texts on other devices feature after changing the region? Or is anyone able to see the watch registered on their samsung accounts post region change?
[Samsung Galaxy Watch 4] kiranambati:
Hi again @adfree ,

Do we have to root the watch to run the commands you linked. I connected to adb and tried to contents of the path it is giving permissions denied. I also tried to copy the file but still same. can you please advice ?

Thanks in advance
[Samsung Galaxy Watch 4] kiranambati:
Oh nevermind. I just read another post linked to gain access.

Will try that. thanks
[Samsung Galaxy Watch 4] adfree:
@kiranambati

No idea about your exact plan. But if I click my 2 Links...

IMHO no Root required... because I wrote WITHOUT Root...

"Only" need to fight with this Exploit System Shell thingie... also visible in these 2 Links and if you look at posts AFTER these posts in this Thread...

Best Regards
[Samsung Galaxy Watch 4] sanket619:
The latest update broke the dialer method to change CSC. Is there any way to revert back to previous build or trigger csc interface via other methods?
[Samsung Galaxy Watch 4] megamanhxh:
I tried *#272*791.. for my SM-R870 Watch4 BT model. It does not work unfortunately on my current watch.

AP/SW: R870XXU1GWB1 / SM-870NZKAINU

CSC: R870OXM1GWB1

👆 Is this the infamous INU/INU?

My watch got updated recently, but I could also be in one of those unfortunate models T^T

Although, *#0808# works, I kind of expected to get the same results for *#272*791..

Any one knows how to manage to change CSC? If there is no way, I will go with the Komraids System Shell .. Perhaps it is the only way to be able to do it.
[Samsung Galaxy Watch 4] adfree:
@megamanhxh​

IMHO user(s) reported Samsung fixed trick with India CSC INU... since GWB1

But System Shell Exploit still working with GWB1... so you can try other method...

STEP 1...

Maybe this Video helps you...

In theory it is also possible to downgrade via netOdin back to EVA8 Firmware... for SM-R870.

Best Regards
[Samsung Galaxy Watch 4] megamanhxh:
Hello @adfree,

I follow the instruction of modifying the country code over the system shell exploit on both files prodcode.dat & mps_code.dat, it worked flawlessly. But, I think I would like to go with downgrade approach as it looks much cleaner as it will change omcnw_code.dat too.
[Samsung Galaxy Watch 4] Adi619:
I was able to revert to INU using the System Shell exploit. Watch 4 Classic LTE.