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Use the Stopwatch and Countdown 
Touch the    or    tab in the Clock app to use the 
countdown timer or the stopwatch. 
Stopwatch allows you to record lap times, while countdown 
timer allows you to set a time and count down to zero. 
Backup and Restore 
Touch Backup in the home screen. You can back up your user 
data, such as contacts and messages, and installed 
applications to the memory card regularly. If the data get lost, 
restore it from the memory card. 
Touch    > Help to view detailed guide. 
Calculator 
Touch the Home key >    > Calculator to use the phone’s 
convenient built-in calculator for some basic as well as advanced 
mathematical equations. 
  NOTE: 
Slide left or right to switch between different panels. 
Downloads 
The Downloads app keeps a record of the files you have 
downloaded using apps such as Browser or Email.