How to use iPhone in Japan

pu1. You can use it after you cancel Country Rock

2017-11-12

OK

pu2. In Japan, I have to cancel Country Rock to change the USIM chip and use my iPhone as it is.
The carrier has restricted the use of other carriers or overseas, but you can only use the Japanese local USIM chip if you cancel it.
The way is to call the carrier you're using and ask for a cancellation.

2017-11-12

OK

pu3. Apply for the country rock termination first. Then you have to do something that syncs to iTunes.

2017-11-12

OK