How to block spam text messages on iPhone 5s?

To block spam text messages on Apple 5s, you can use the blacklist blocking function.

The specific steps are 6, as follows:

Step 1: Open the iPhone and find the "Settings" icon, click to enter;

Step 2: In the "Settings" option, find the "Notification" sub-icon and click to enter;

Step 3: After entering the notification center, select "Information" inside, as shown below:

Step 4: Find "Show iMessage reminders from the following people" and select the "Show reminders from my address book" option:?

Step 5: The system adds a blacklist block Function, click Settings, select Information, click Blacklist.

Step 6: Select Add, and then the system will automatically pop up all your contacts. Select the contacts you want to block. You will not receive calls, messages or messages from the contacts in the blacklist. FaceTime calls, but this function is only for contacts that have been added to your phone. If you want to add an unknown number to the blacklist, you must first save the phone number to your contacts before adding it.

ps: If you make a mistake or want to unblock someone from the blacklist, you can click Edit in the blacklist, and then click the red button to unblock.