Her classmate forgot his pattern password LOL
This is a old model Samsung Galaxy i5700 with Android firmware version 2.2 .
How to hard reset Samsung Galaxy i5700 Spica Android
NOTE: in reset process all the contacts and personal data are deleted:
1.Turned off the device simultaneously Press Volume Down Button + Call + End Key Button Together.
2. Wait the Samsung Loading and you will see this on screen. Press the Menu button on the image below to continue.
3. Now you will see this on your screen (Factory Reset).. wait a few seconds the device will reboot.
4. Now you have successfully reset your device.
Other method to reset old version device is to Dial and Enter : *2767*3855#