In order to hard reset a Samsung R351 Freeform, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Samsung R351 Freeform device will be brought back to the default configuration of a brand new device.
1. Turn on the phone.
2. Press OK in order to enter Menu.
2. Now go to Settings > Phone Settings > Security.
3. Tap in the lock code (first four digits of your phone number).
4. Lastly, select Reset Phone > Yes. Done!