Huawei Card 1 Card 2 is blacklisted separately.

1. Open the phone application and click the contact icon in the lower right corner to enter the contact list.

2. Slide the screen to switch to the blacklist tab, and you can see the list of blacklist numbers that have been added.

3. Click the+icon in the upper right corner to enter the Add Blacklist page. On this page, you can choose whether to join the blacklist of 1 card or 2 cards.

4. Enter the contact person or phone number to be blacklisted, and click Finish to add it to the blacklist of the selected card slot.