Switching the phone on or off – Samsung SGH-T509TSATMB User Manual
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Section 1: Getting Started
9
Switching the Phone On or Off
Section 1
Note: You must unplug the adapter before you remove the battery from the 
phone during charging; otherwise, the phone could be damaged.
Low Battery Indicator
When the battery is weak and only a few minutes of talk 
time remain, a warning tone sounds and the “Warning 
Low Battery” message repeats at regular intervals on the 
display. When this happens, your phone turns off the 
backlight to conserve the remaining battery power. 
When the battery level becomes too low, the phone 
automatically turns off.
Switching the Phone On or Off
1. Press and hold the
key until the phone switches on.
2. If the phone asks you to enter the phone password,
enter the password and press the OK soft key or the
key. The password is preset to “00000000” at the 
factory. For further details, see "Change password" on 
page 116.
3. If the phone asks for a PIN, enter the PIN and press the
OK soft key or the
key. For further details, see "PIN
The phone searches for your network and after finding it, 
the name of your service provider appears on the lower 
half of your display. Now, you can make or receive calls.
Note: The display language is preset to English at the factory. To change 
the language, use the Language menu. For further details, see "Language" 
on page 101.