iPhone X Japan iPhone X shutter hardcoding...how?

[AnakChan]

So I’m well aware of region specific iPhone models whereby certain features such as camera/video shutters are hardcoded. I’m familiar with the
RegionalSystemSoundsThatShareBehaviourRegionalSystemSoundsThatShareBehaviour.plist hack however that needs jailbreak to have r/w access to the root file system.

However how does the iOS “know” what “region” the iPhone is from? Is it something like how some devices (like Sony music players or cameras) with some kind region code in the EEPROM or NAND that gets read by the OS and (with the right tools) can be changed to another region code? Or alternatively would I be able to get a non-Japanese NAND (and flash with my IMEI/Serial/Wifi, etc) to make it into a non-Japanese iPhone?

Or is the hardcoding linked to the IMEI/Serial and stored in the Apple servers that replacing NAND wouldn’t help as during reactivation, it’ll just pull the region specific codes back from the Apple servers?

Any guidance w.r.t. is greatly appreciated.

P.S. yes I know I could always sell the Japanese iPhone and get a new one from a different region but avoiding that option

 

[akash.nu]

Not sure as I have never looked into this but as a sort of general technical implementation point of view the IMEI option seems to be the most resilient solution.

 

[AnakChan]

Thanks for your reply. I would agree that if I were Apple, That’s how I’d implement it too...seeing how Apple already manages SIM locks based on provider centrally in their servers (during 1st activation).

Maybe I was just wishful thinking that the iPhones were region pre-programmed prior to shipping and could be overridden like how Sony/Panasonic cameras are - and those can be overridden with the right software updating the region code.

I’m definitely not into anything illegal of IMEI changing, etc. just for the sake of disabling the shutter. That’ll be silly.