In order to hard reset a Palm Treo 680, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Palm Treo 680 device will be brought back to the default configuration of a brand new device.
1. For starters, remove the phone's battery.
2. Palm logo should appear on-screen. Wen it does, press and hold the Power button.
3. Let go of buttons held when the black status bar at the bottom of the screen fills and disappears.
4. Confirm the "Erase all data?" message by pressing Up button.
5. Select the language you want using Center button. Done.