You should reset it using Hard Reset. You will lose all your data but hopefully you have recently synced it to your computer then you can just restore all the information. To Hard Reset you press in the button on the bottom of the phone next to the USB connector with the stylus, then press the two selector keys QUICKLY after you do that and when it tells you it's going to erase everything let go and press the Send button.
Answers & Comments
You should reset it using Hard Reset. You will lose all your data but hopefully you have recently synced it to your computer then you can just restore all the information. To Hard Reset you press in the button on the bottom of the phone next to the USB connector with the stylus, then press the two selector keys QUICKLY after you do that and when it tells you it's going to erase everything let go and press the Send button.