feature
master clear To reset all options to their factory settings and clear all user entries (such as downloaded wallpapers, main menu 
animation, and sounds):
Warning: This option erases all information you have entered (including phonebook entries) and content you have downloaded. Once you erase the information, it cannot be recovered. All options are reset back to their factory settings, except for the unlock code, security code, and lifetime timer.
M> Settings > Initial Setup > Master Clear
To clear all information, you need to enter the Security Code (000000).
call times & costs
Network connection time is the elapsed time from the moment you connect to your service provider's network to the moment you end the call by pressing P. This time includes busy signals and ringing.
The amount of network connection time that you track on your resettable timer may not equal the amount of time for which you are billed by your service provider. For billing information, contact your service provider.
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