How can I sign in to my Xiaomi Account using a third-party account?

Here's how you can do it:

1. If you're using a computer, open id.mi.com, select the appropriate third-party account and scan the QR code using the mobile app you used to create your Xiaomi Account.
2. You can also sign in via a mobile browser. After selecting the third-party account on id.mi.com, you'll receive a request from the third-party app to authorize this sign-in attempt.
3. If you're using a Xiaomi device, open the Settings app and select "Sign in to Xiaomi Account".