Can I flash indian firmware on my galaxy s23 ultra canadian version SM-S918W?

[krtkthakur]

I recently migrated from canada to india i had bought s23 ultra , but when I came to canada my s23 ultra was not able to use 5G network bands, I asked samsung service center , they told me that they couldnot do anything about it since it is not from this country and I approached candian support team as well , they also could not help and asked me to go to local service center (samsung) . So I asked around in local market , they told me that I can flash my device to indian firmware , but not sure if that would solve my problem . 

I searched online @reddit and came across a thread that memtioned that I can use service menu to access all bands 

Can someone help me make sense of it all?

[Arya111]

Yes You Can

[krtkthakur]

What about device getting bricked?

[Arya111]

Go to Samsung Service Center they flash Indian firmware.

[dr_azad]

are you sure? have they done it for you?

[Arya111]

Yes

[dr_azad]

which place ? they didn't agree at my place.

[dj9494]

Official, you can't switch, and the service menu you are talking about it not accessible. Even I want to switch my firmware

[krtkthakur]

So how can I use 5G in my device

[dj9494]

To be honest, I'm not sure , my device is from uk, and everything works fine here except for the reginal based services like smasung pay and fraud call services