2. Even if the phone number of the contact person is saved, it is saved to the mobile phone directly, and can be saved to the SIM card without selection.
3. Export the contacts of Apple's mobile phone address book. You can use QQ address book backup function to copy the information of mobile phone contacts.
4. Download and install QQ address book on mobile phone, then log in with QQ number to back up the contact information of mobile phone address book to QQ address book, then download and install QQ address book on other mobile phones, and then log in to download the backed-up address book to the new mobile phone.