Use these steps to set up and use SMS / MMS messages with advanced messaging on the Samsung Galaxy S9.
Change advanced messaging settings
- From the Home screen, swipe up on an empty spot to open the Apps tray.
- Tap the Messaging icon.
- Tap Menu > Settings > Chat settings.
- Select the following options to modify your settings:
- Send read receipt
- Multimedia limit
- Roaming auto download
- Image size
- Share typing indications
Turn advanced messaging on / off
Advanced messaging settings can be changed but the feature cannot be turned off. It is an always-on feature for this device.