Clarion NX404AU Owner's Manual page 117

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7: How to make or restore a backup of the navigation SD card.
It is suggested to make a backup in at least the following cases:
-
right after you acquire a device or navigation software;
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before using Naviextras Toolbox to update your navigation software and its content;
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after updating your device or software.
By default, Naviextras Toolbox reminds you to make a backup in each of these events.
Creating a backup
After connecting your device and logging in, click the Backup button on the left panel to
access the backup and restore functions.
You can see the list of existing backups, which is empty at the beginning. Click Create
Backup to start making a backup.
Depending on your PC's USB port and device capabilities (support for USB 1.1 or USB 2.0)
the time needed to make a backup may vary. Please wait until the backup process is
completed. Do not disconnect or switch off your device during the process.
A status bar with the completeness percentage is shown while creating a backup is in
progress. The status bar changes to 'Completed' when the process is finished.
Restoring a backup
If you need to restore a backup, click the Restore button in the line that shows the name of
the backup.
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