In order to hard reset a Samsung U380 Brightside, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Samsung U380 Brightside device will be brought back to the default configuration of a brand new device.
1. Turn on the phone with a Power button.
2. Now open Settings > Phone Settings > Security.
3. Tap in the lock code, which is the last four digits of you phone number.
4. Lastly, select Restore Phone > Reset Settings > Yes > No. Done!