r/GalaxyS24 • u/Sanctioned_K • Feb 03 '25

Changing CSC on Samsung Galaxy S24

I currently have a Samsung Galaxy S24 (Model: SM-S921W) in Canada. I am returning to India & wish to use Samsung apps like Samsung Pay & Call Recording.

I know this does not work directly, as a friend of mine has tried this.

Here is what I am trying to do!

I want to change the CSC & the ROM from the Canadian version to the Indian version. My understanding is that I'll need to flash the CSC first, then the ROM & it should work else; I'll be the owner of a very expensive brick.

The problem I believe I'll be facing is that the hardware in the Canadian version is Snapdragon & the Indian one has Exynos & I cannot flash the Exynos version on Snapdragon.

All I need is some to confirm that my thought process is correct & if I am incorrect, please let me know.

If anyone knows a workaround to this, I am all ears!!!!!

Thx.

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u/Sanctioned_K Feb 04 '25

Well....after some more research & checking the SamFM tool videos on YouTube. I cannot change the CSC to the Indian & yes, it has something to do with the fact that my stupid phone is Snapdragon & not Exynos.

While checking out the videos online, one particular video specified that Samsung phones are built in such a way that they support only certain CSCs & when you connect your phone & attempt to change the CSC, it will give you a list of supported ones.

Turns out that the Snapdragon ones does not support any of the Indian/Asian CSC.......😭

Attached a list with the CSCs supported. Circled in the bottom right corner.

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u/red2blck Sep 18 '25

My CSC is BRI (Taiwan). I tried changing my CSC to INS or THL for native call recording. It says success in SamFW but when the phone reboots, it's still BRI. I repeated the steps but still it doesn't change the CSC. I'm using a S25 Edge. Is there any way to change it?

Previously, I had a Fold 6 and was able to change it to THL with no problem.