Use Maintenance mode on your Galaxy phone or tablet

Navigate to and open Settings, and then tap Device care.

Tap Maintenance mode. If you would like to make a backup, swipe down to see your options. See the next section for details about backing up.

Tap Turn on. Follow the on-screen prompts.

Note: You will be prompted to set up a Lock screen if you do not already have one. Please see the previous section for details.

Navigate to and open the Samsung Members app.

Tap the Support tab.

Swipe to and tap the Maintenance mode section, then tap Turn on, and then follow the on-screen prompts.

Once you've chosen to make a backup, tap Temporary cloud backup, and then tap Back up data.

By default, all data is selected to be backed up. Tap the check mark next to an item to exclude it from the backup.

Note: Not all data can be backed up. Tap Find out what data can't be backed up for details.

Tap Back up. If you have Secure Folder set up, you'll be asked if you'd like that backed up as well. If you choose to back up Secure Folder, you'll be asked to unlock it.

The backup will proceed. While the backup is in progress, you can use other apps on your phone. When the backup is complete, navigate back to Maintenance mode and turn it on.

Once you've chosen to make a backup, connect your storage device, and then tap External storage backup. Tap your connected storage device.

Be default, all data is selected to be backed up. You can choose the more limited backup of calls, contacts, and messages, or create a custom backup. Tap Next.

Note: Not all data can be backed up. Tap See what can't be backed up for details.

If you have Secure Folder set up, you'll be asked if you'd like that backed up as well. If you choose to back up Secure Folder, you'll be asked to unlock it.

The backup will proceed. While the backup is in progress, you can use other apps on your phone. When the backup is complete, navigate back to Maintenance mode and turn it on.

Navigate to and open Settings, and then tap Device care.

Tap Maintenance mode, then tap Exit, and then tap Restart. Enter your Lock screen credentials when prompted.

You can also turn off Maintenance mode from the Notification panel. Swipe down from the top of the screen, and then tap the notification that says “Your phone/tablet is in Maintenance mode.”

Navigate to and open Settings, and then tap Device care.

Tap Maintenance mode, then tap Temporary cloud backup.

Tap Restore data. If there are any items you do not want restored, you can tap them to remove the checkmark. Tap Restore data when you are ready.

Attach the storage device with your backup, and then navigate to and open Settings. Tap Accounts and backup.

Tap External storage transfer. Tap Agree if you are prompted to download Smart Switch, and allow the requested permissions.

Tap your backup under the Restore from section. Tap Next, and your backup will be restored.