Converting S23 USA CSC code to Indian Version

[shu23aug]

I purchased Samsung Galaxy S23 from USA. and I am using it in India. 
Since the model is for the USA, the software installed in it does not support

1. Call Recording

2. One Tap Mobile data switch between SIM1 and eSIM/SIM2
Both the options are available for Indian version of S23. 

I have seen many videos regarding the same and all gave a simple solution of changing the mobile existing CSC code (XAA) to Indian Code (INS or INU). But INU or INS code was unavailable for S23. Please help me out. 

[shu23aug]

SM-S911U1

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. We would request you register your concern in Samsung Members Application. So, our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application>Support>Type your query>Ask a question/Tap an error report>Send)

Note. please attach the error log file within 15 minutes of the error occurring.

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Warm Regards,
Samsung Customer Support

[SherrSF]

Can someone please help in checking for S21 plus (Model:SM-G996U/DS)
With OYN, VZW = Verizon Wireless, XAA = USA Unbranded.

I want to change to INDIAN CSC for using Samsung wallet for UPI, NFC and Call Recording along with OTA updates. Even Updates via Smart switch is not an issue but first two are mandatory for me
Can someone suggest me indian CSC for S21 Plus?

[Maddy5511]

Did u get a resolution?

[SherrSF]

No. Still hunting

[AastikM]

Can you please confirm, how to update the phone. Do we need to always do it via smart switch, or it is automatic?

[SherrSF]

Bro are u able to update from SmartSwitch?

[Absolute_Zero]

Hey, did you try anything ? Did it work ?

[SherrSF]

changed CSC. No luck. Something weird happend so switched back to original CSC.

Was afraid to flash ROM. so didn't do anything further.
Struggling without updates. Any suggestions from anyone?