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[GUIDE] How to change S9/S9+ CSC (Only Same Model Number's CSC)

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By GuestK00260, Guest on 23rd November 2018, 04:43 PM
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How to change S9/S9+ CSC (Only Same Model Number's CSC)

Hi I will tell you how to change S9/S9+ CSC simple.
You can change to the same Model Number's CSC.
You don't need a special UART Cable.
It's simple to changing using RealTerm or PuTTY with any Type-C cable.
(I recommend Samsung's bundle cable in the phone box.)
Install Smart Switch and RealTerm or PuTTY.
I will tell you using RealTerm.
And you will need SamFirm to download Stock Firmware.

1. Find Your Model's Combination File by yourself!
And Flash by Odin.

2. If your phone shows your Model Number after boot.
Run RealTerm and go to Port tab.
Set Baud to 230400 and Select Port to ssudmdm0000 or very similar name.

3. Go to Send tab.
Enter "AT" and click Send ASCII.
If you get a response like

+USB READY
BOOTING COMPLETED
AT

or

AT

or

OK

or

BOOTING COMPLETED
AT

Proceed to the next number.
If you didn't get a response click +CR and send again.
If you get a response like "ERROR" proceed to the next number.
Still if you didn't get a response check your phone status and cable status.
If everything is normal proceed to the next number.
If still you didn't get a response it mean's your phone or cable is not normal status.

4. Enter "AT+PRECONFG=1,0" and click Send ASCII.
You will get this response.

AT+PRECONFIG=1,0+PRECONFG:1,???
OK

??? is your current CSC.

5. Enter "AT+PRECONFG=2,???" and click Send ASCII.
Enter ??? you want to change to another CSC.
You will get this response.

AT+PRECONFG=2,???+PRECONFG:2,OK
OK

??? is your changed CSC.

6. Enter "AT+PRECONFG=1,0" and click Send ASCII.
You will get this response.

AT+PRECONFIG=1,0+PRECONFG:1,???
OK

??? is your changed, current CSC.

7. Flash Changed CSC's Stock Firmware.

Congratulations!
You changed CSC for free by yourself!


Special Thanks to "HD Voice"
(He finded this method even without having a S9/S9+. Just a normal Korean User LOL)
The Following 22 Users Say Thank You to GuestK00260 For This Useful Post: [ View ] Gift GuestK00260 Ad-Free
24th November 2018, 07:37 AM |#2  
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"???" enter SPR or VZW ..ct?
24th November 2018, 08:38 AM |#3  
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when i enter "AT + PRECONFG = 1,0 ",
displayed"AT + PRECONFG = 1,0 " no displayed what you said
GuestK00260
24th November 2018, 09:23 AM |#4  
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Quote:
Originally Posted by Lee1315

"???" enter SPR or VZW ..ct?

Yes enter you want to change.
GuestK00260
24th November 2018, 09:25 AM |#5  
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Quote:
Originally Posted by Lee1315

when i enter "AT + PRECONFG = 1,0 ",
displayed"AT + PRECONFG = 1,0 " no displayed what you said

Did you flashed Combination firmware?
24th November 2018, 09:38 AM |#6  
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will this work on exynos note 9?
GuestK00260
24th November 2018, 04:07 PM |#7  
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Quote:
Originally Posted by wire.rat

will this work on exynos note 9?

Yes.
24th November 2018, 05:21 PM |#8  
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Just need to flash the combination file directly? no need to flash home_csc together right
24th November 2018, 08:58 PM |#9  
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Hi applypay,

Thank you! I tried this on my S9 Exynos G960F/DS, Taiwan (BRI) stock.
However the Combination Rom must be installed first, otherwise "AT+PRECONFG" command will return nothing.
Once "AT+PRECONFG=2,???" is done, then install whatever local Rom to use, and for me it worked.
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GuestK00260
25th November 2018, 03:29 AM |#10  
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Quote:
Originally Posted by wire.rat

Just need to flash the combination file directly? no need to flash home_csc together right

Yes.
GuestK00260
25th November 2018, 03:30 AM |#11  
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Quote:
Originally Posted by chua

Hi applypay,

Thank you! I tried this on my S9 Exynos G960F/DS, Taiwan (BRI) stock.
However the Combination Rom must be installed first, otherwise "AT+PRECONFG" command will return nothing.
Once "AT+PRECONFG=2,???" is done, then install whatever local Rom to use, and for me it worked.

Good!
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