Preparations
7
• Rechargeable batteries have a limited number of charge cycles and may 
eventually need to be replaced. When the battery life becomes noticeably 
shorter, replace the battery.
• The time required to fully charge the battery depends on the ambient 
temperature and the age of the battery.
• If your phone is very low on power, it plays an alert tone and displays a 
message. If the battery level is extremely low, your phone automatically powers 
off. 
Powering your phone on and off
• To power on your phone, press and hold  . 
• To power off your phone, press and hold  to display an option menu, and 
then touch 
Power off
.
 
If errors occur and you cannot power off your phone, press and hold  for 
10 or more seconds to restart your phone.
Setting up your phone for the first time
When you use your phone for the first time, follow the onscreen instructions to set it up.
When you power on your phone or open some applications for the first time, your phone 
walks you through basic operations. To read these instructions again, touch 
Management
 
>   from the home screen.