CSC Change - Model R845U

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Apr 1, 2020
10
5
Hi guys,
I really need some help please.

I have the US model R845U LTE and I'd like to change the CSC to ITV (Italy) to get the latest updates as mine is stuck to R845USQU1BTK2.

I am following the procedure of Technoproz but I need to be sure that I use the right files.

I downloaded the combination firmware COMBINATION-FT55_R845USQU1ATL2.tar. This is the right one, right?
I have a doubt on which stock firmware to use. Should I use the R845USQU1BTK2_Tizen_3File_CSC (OYN)?
Or should I use the firmware R845FXXU1CTJ5_Tizen_4File_CSC (OXA) which is the Italian one?


Thanks in advance for your help!
 
Last edited:
Apr 1, 2020
10
5
Are you sure there's an update for your watch on CSC ITV? This page gives the firmware history for model R845U on XAR, but on ITV it gives an error.
First of all, thanks for helping.

That's exactly my doubt.
On CSC ITV they are at the R845FXXU1CTJ5 so, to answer your question, yes there is an update but it's for the R845F, not for the R845U.
So, do you think that I can flash the firmware for the 845F after changing the CSC to ITV?

Thanks
 

congusto

Senior Member
Apr 12, 2010
233
53
Alkmaar
First of all, thanks for helping.

That's exactly my doubt.
On CSC ITV they are at the R845FXXU1CTJ5 so, to answer your question, yes there is an update but it's for the R845F, not for the R845U.
So, do you think that I can flash the firmware for the 845F after changing the CSC to ITV?

Thanks
I would be very reluctant in flashing firmware for another model on your watch. There's a good chance you'll brick it.
 
Apr 1, 2020
10
5
I would be very reluctant in flashing firmware for another model on your watch. There's a good chance you'll brick it.
Yep it makes sense what you say but...my concern is...if I flash back the BTK2 after having changed the CSC to ITV...what do I gain?
Will I get the updates of the ITV region or not?

Cheers
 

aryanaaa

Member
Jun 21, 2009
10
0
darbandikhan
Does anyone know if it's possible to downgrade from tizen 5.5.2 to 5.5.1 ?
I want to change my watch 3 CSC but i couldn't find any firmware in 5.5.2 which my watch currently on it so i want to downgrade to 5.5.1 then flash combination...
Is it possible?
 

congusto

Senior Member
Apr 12, 2010
233
53
Alkmaar
Yep it makes sense what you say but...my concern is...if I flash back the BTK2 after having changed the CSC to ITV...what do I gain?
Will I get the updates of the ITV region or not?

Cheers
I'd expect that since that webpage with firmware history I mentioned gives an error for R845U on ITV, you won't get any update after changing the CSC to ITV. So you won't gain anything if I'm correct.
 
Apr 1, 2020
10
5
I'd expect that since that webpage with firmware history I mentioned gives an error for R845U on ITV, you won't get any update after changing the CSC to ITV. So you won't gain anything if I'm correct.
And I managed to brick it.
I tried to flash the combination firmware downloaded from easy firmware and it failed.
Now the watch doesn't reboot and I don't know what to do.
Hopefully Adfree will be able to help me.

If you have any suggestion please feel free to let me know.

Thanks
 
  • Like
Reactions: adfree
Apr 1, 2020
10
5
I have to officially give a big thank you to Adfree for his help.
We managed to fix my watch and now I have a full ITV version...moving from the original R845U to R845F.
Everything is working now BP, ECG and Samsung Pay.

Thank you Adfree!
 

amitdon

Senior Member
Dec 7, 2017
208
169
I have to officially give a big thank you to Adfree for his help.
We managed to fix my watch and now I have a full ITV version...moving from the original R845U to R845F.
Everything is working now BP, ECG and Samsung Pay.

Thank you Adfree!

buddy pls help us also as ......we also want to do it ....also if u can share the respective files for it .
 
Apr 1, 2020
10
5
I'm glad it worked out in the end. What would you recommend to other users wanting to swtchifrom R845U to T845F?

Apologies for reverting late!
So, this is what I did to change my R845U into an R845F:

1. Installed the combination firmware with netOdin


2. with the pull/push commands via SDB I changed the

a. PRODUCT CODE from SM-R845UZKAXAR into SM-R845FZSAITV
b. CSC from XAR into ITV

3. Installed the stock firmware CTJ5


and voila'....the GW3 became fully Italian.
Then the watch will update itself via OTA to the firmware DUA4.

At this stage the BP and ECG widgets are present on the watch and the last step is to install on the phone the SHM app (version 183) which can be found on the other thread (by Dante63).

And all is working.

Couple of things:
- I am leaving those links active for a week or so. I bought both above firmware from Easyfirmware but I'm glad to share them with the community.
- I am not responsible for any bricked watch :) As usual, do these things at your own risk ;)
- A huge thanks to Adfree for his help!

Cheers
 

icecool217

New member
Oct 4, 2009
4
0
Apologies for reverting late!
So, this is what I did to change my R845U into an R845F:

1. Installed the combination firmware with netOdin


2. with the pull/push commands via SDB I changed the

a. PRODUCT CODE from SM-R845UZKAXAR into SM-R845FZSAITV
b. CSC from XAR into ITV

3. Installed the stock firmware CTJ5


and voila'....the GW3 became fully Italian.
Then the watch will update itself via OTA to the firmware DUA4.

At this stage the BP and ECG widgets are present on the watch and the last step is to install on the phone the SHM app (version 183) which can be found on the other thread (by Dante63).

And all is working.

Couple of things:
- I am leaving those links active for a week or so. I bought both above firmware from Easyfirmware but I'm glad to share them with the community.
- I am not responsible for any bricked watch :) As usual, do these things at your own risk ;)
- A huge thanks to Adfree for his help!

Cheers

Hi!
I have a couple of questions:

1) My software is currently R845USQU1ATFE. Would I be able to use your file COMBINATION-FT55_R845USQU1ATL2_clean_v1.zip?

2) In your step 2a using sdb, how did you manage to change from R845U to R845F? Basically Is there a way to check whether my software has CSC code TGY? I assume if R845U...ATFE already has TGY, then all I have to do is sdb pull/push for TGY. Is that correct?

Any help is greatly appreciated! :)
 

danwalls

Member
Jan 7, 2021
10
0
I have to officially give a big thank you to Adfree for his help.
We managed to fix my watch and now I have a full ITV version...moving from the original R845U to R845F.
Everything is working now BP, ECG and Samsung Pay.

Thank you Adfree!
OMG PLEASE CAN YOU TELL ME HOW YOU DID THIS!? I’m the exact same situation, I got an American galaxy watch3 LTE but I live in Italy and I need to change it to an Italian model! Please it would mean the world to me if you could help me! Thank you!
 

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    I'm glad it worked out in the end. What would you recommend to other users wanting to swtchifrom R845U to T845F?

    Apologies for reverting late!
    So, this is what I did to change my R845U into an R845F:

    1. Installed the combination firmware with netOdin


    2. with the pull/push commands via SDB I changed the

    a. PRODUCT CODE from SM-R845UZKAXAR into SM-R845FZSAITV
    b. CSC from XAR into ITV

    3. Installed the stock firmware CTJ5


    and voila'....the GW3 became fully Italian.
    Then the watch will update itself via OTA to the firmware DUA4.

    At this stage the BP and ECG widgets are present on the watch and the last step is to install on the phone the SHM app (version 183) which can be found on the other thread (by Dante63).

    And all is working.

    Couple of things:
    - I am leaving those links active for a week or so. I bought both above firmware from Easyfirmware but I'm glad to share them with the community.
    - I am not responsible for any bricked watch :) As usual, do these things at your own risk ;)
    - A huge thanks to Adfree for his help!

    Cheers
    1
    I'd expect that since that webpage with firmware history I mentioned gives an error for R845U on ITV, you won't get any update after changing the CSC to ITV. So you won't gain anything if I'm correct.
    And I managed to brick it.
    I tried to flash the combination firmware downloaded from easy firmware and it failed.
    Now the watch doesn't reboot and I don't know what to do.
    Hopefully Adfree will be able to help me.

    If you have any suggestion please feel free to let me know.

    Thanks
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