This is a procedure on how to hard reset the Nokia E73 through button combination.
Please Note: The result of this process will wipes the entire phone memory and settings fresh to how it was (or should be) when you bought it.You are advise to make a back up of your device and you need to understand that what you are doing this is at your own risk. However, this does not delete all the data stored on the memory card.
The standard format method is this below.
Restore Factory Settings
Dial *7780# to restore all the settings to default. It will request for security PIN, the default code will be 12345.
Reformat Phone System
Dial *7370# to reset Nokia device, only data in System will be affected. To play safe, back up all your data before proceed. It will request for security PIN, the default code will be 12345.
For Hard Reset:
This also restore your Nokia when it frezzes at the nokia screen logo only and didn't go any further.
hard reset is an options but will result to loosing all settings, contacts, data etc…
Turn your phone off and simultaneously press these four buttons circled in red.
* * (asterisk key)
* 3 (numeric 3 key)
* CALL / GREEN key
* On button
This is another method below found out by trial and error when the * + 3 + Call didnt work.
Switch your phone off.
Then, lay it down on a flat surface
With 3 finger of one hand, keep pressed shift, space bar and back space all at the same time
With one finger of the other hand, press the power on button
Do not release neither the 3 keys nor the power key till you see the nokia shakehands animation.