How to perform hard reset ( master reset ) Nokia N800 via Settings menu:
To restore original factory settings,
- select Control panel
- select Tools
- select Restore original settings.
This function does not affect the content you have created, security codes, passwords, the device language, or game scores. However, it removes, for example, account user names defined for instant messaging and internet call.
To avoid permanent damage to your device, do not restart your device while a reset procedure is underway.
Warning! All data will be erased from device memory, including system and application data, settings and downloaded applications. Back up your important data. The device will restore to factory settings.