Check The Power, Radio Waves, And Battery - Sony Ericsson W21S Basic Manual

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Check the power, radio waves, and battery!

Usually, keep the cellphone's "power" on.
You cannot talk if you are not receiving "radio waves."
Pay attention to the remaining "battery" power.
4
To make or receive calls, turn the power
on.
Hold down
for at least one second.
It is sometimes difficult to receive radio
waves in some places even in service
areas.
  indicates the reception state.
Sometimes the cellphone does not
function properly if the remaining
battery power is low.
  indicates the remaining battery power.
See
11
page
See
11
page
See
11
page

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