Samsung GALAXY Grand Prime User Manual page 361

Access Backup and Reset Options
1. From home, tap Apps
 The Backup and reset menu opens.
2. Set options.
 The backup and reset settings are applied and saved.
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If you are performing a Factory data reset, follow the prompts to confirm the data removal.
The phone will erase all data and reboot.
Factory Data Reset
1. From the Backup and reset menu, tap Factory data reset.
Settings
> Settings > Backup and Reset .
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