As always, back up personal data

You should not use the "three finger" reset!

Instead do this:
1.Press down the power button for 8 seconds.
2.Restore the factory settings by selecting Menu > Settings > Phone > Phone management > Factory settings > Restore.

Code:

Source:http://discussions.europe.nokia.com/t5/Nseries-and-Symbian-Smartphones/How-To-Hard-Reset-N8/td-p/772128

If you have forgotten your password you will need to complete a factory data reset:
Factory reset will permanently delete all your data and customized settings, and will remove any applications you've downloaded and installed. SD and SIM card data will not be deleted.

(ANDROID FACTORY RESET-HTC EVO 4G) http://cellphoneforums.net/google-an...ml#post1426921

(HTC Inspire)
With the phone turned off, press and hold

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