How to Factory Reset all device Xiaomi

It's simple.

1. Open your setting in device.
2. You can search "additional setting".
3. Scroll down and search "additional setting".
4. Find "Backup and reset".
5. Choose "Factory data reset".
6. It will be erase your data in phone.
7. If you don't want to lose your data, you can backup your data in google account and xiaomi account.

Thanks and have a great day!