How to change the mobile phone card?

There are two ways to change the mobile phone card:

1. Online card replacement: You can open the settings of the mobile phone, click the operator above, select another operator after entering, and click Cancel Automatic Login to successfully replace the card.

2. Offline card replacement: You need to bring your ID card to the local business hall to change the card. To change cards in different places, you need to bring your ID card to the designated business hall.