How does Apple switch mobile phone numbers when sending text messages?

Open iPhone 1 1, find the information icon, enter the information page, click the new button in the upper right corner of the page, click the recipient, and select the recipient. After that, the default mobile phone card name will appear at the top of the page. Click the name of the mobile phone card, and then switch the mobile phone card to complete the operation.

IPhone tips:

1 and iPhone 1 1 can delete the bank card of Apple Pay. Open the phone, click the "Settings" icon in the phone to open the system settings page, click the wallet and Apple Pay, select the bank card to be deleted, and click "Remove this card".

2.iPhone 1 1 can open the data network to automatically download the software, enter the system settings page, click iTunes Store and App Store, click Automatic Download, select App Download, and select Always Allow to Complete the Operation.

3.iPhone 1 1 can automatically turn on the dark mode, open the display and brightness page, turn on the automatic option, and then set the turn-on time.

Data expansion: Before upgrading the system of iPhone 1 1, it is best to back up the data in the device to prevent data loss caused by unexpected events during upgrading. Although the data of most applications can be backed up through iCloud, there are still some applications that require users to manually back up data.