Why can only mobile phone numbers starting with +86 be bound when registering a Xiaomi account?

+86 is the beginning of the Chinese mobile phone number. If you can only bind a mobile phone number beginning with +86 when registering a Xiaomi account, it means that the Xiaomi account you created is a Chinese mainland account.
This situation is mainly affected by the following factors:
1. When you register this account, your location can be on the Chinese mainland;
2. The email address used when registering the account is in mainland China, such as an email address ending with suffixes such as @163.com, @126.com, or @qq.com, so only Chinese phone numbers can be bound.
To avoid this situation, it is recommended that you use an email address outside Chinese mainland, such as an email address ending with suffixes such as Gmail, Outlook, or Yahoo.
Note:
1. It is recommended to unbind the related devices bound to the old account in advance to prevent some binding issues;
2. The Xiaomi account outside the Chinese mainland can only be created through email.