How to change your country of residence on an iPhone, and make sure your Apple ID still works abroad

To change the country on your iPhone, head into your Apple ID settings. There, you'll have to pick a new country and payment ...
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How To Change Your Apple ID In The App Store

To start using a brand-new Apple device — such as an iPhone, iPad, Apple Watch, Apple TV, or Mac computer, among others — you need to set it up using an Apple ID. This pertains to your personal ...