TomTom one 用户指南
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TomTom HOME makes a backup of your ONE on your computer.
Restoring a backup
If you ever have a problem with your ONE, you can restore the backup.
Follow steps 1 and 2 above, then select the latest backup and click Restore.
The latest backup will be restored to your ONE.
For more information, see the Help included with TomTom HOME.