Apps
Delete conversations
You can remove your conversion history by deleting conversations.
1.From 
Messages, tap 
More options > Delete.
2.Tap each conversation you want to delete.
3.Tap 
Delete, and confirm when prompted.
Emergency alerts
Emergency alerts notify you of imminent threats and other situations. There is no charge for receiving an Emergency alert message.
1.From 
Messages, tap 
More options > Settings.
2.Tap Emergency alert settings to customize notifications for emergency alerts.
Message settings
Configure the settings for text and multimedia messages.
◌ From 
Messages, tap 
More options > Settings.
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