Samsung SGH X820 Manual

Also see for SGH X820: Service manual

8Get startedLow battery indicatorWhen the battery is low:• a warning tone sounds,• the low battery message displays, and• the empty battery icon blinks.If the battery level becomes too low, the phoneautomatically turns off. Recharge your battery.Power on or offKeypad lockYou can lock the keypad to prevent accidental pressesfrom affecting phone operations.In Idle mode, press and hold [ ] and press <Yes>.To unlock the keypad, press the left soft key and then[ ].You can also set the phone to lock the keypadautomatically. p. 83When the phone is completely charged (thebattery icon becomes still), unplug the adapterfrom the power outlet.Remove the adapter from the phone.Switch onDo not turn onthe phone whenmobile phoneuse is prohibited.1. Press and hold [ ].2. If necessary, enter the PIN andpress <OK>.Switch off Press and hold [ ].