How to import SMS from another mobile phone into Xiaomi 5?

Settings-More Settings-One-click phone change-I'm an old phone-Take a new phone in the same location, select I'm a new phone-Scan the QR code of the old phone-Click the SMS in the settings, then back it up, and then change the phone with one click. It's done.

Or, you can log in Xiaomi account on the old mobile phone, start SMS cloud synchronization, and then log in the same Xiaomi account on the new mobile phone, and the new mobile phone will automatically synchronize the information of the old mobile phone.