Mio Digi Walker 8870, Руководство пользователя, Страница: 215 / 223

203
13.2
Frequently-asked Questions
Problem Solution
Power doesn’t turn
on. The remaining battery power may be too low to start up
your Smartphone.
If you use the external AC power, make sure that the AC
adapter is firmly and correctly connected.
Remove the battery and replace it. Then turn on the
Smartphone again.
Cannot make a call. Make sure that the phone function is turned on.
Make sure that you are within the range of the mobile
phone network service.
Make sure that the keypad lock is disabled.
Make sure that you dial the correct number.
No ring tone Check the sound volume.
Make sure that your Smartphone is not muted.
Poor signal quality If you are inside a building, move near a window or go
outside.
If you are in a reinforced structure, such as an elevator or
parking garage, wait until you are outside to try your call.
Memory Problems If a warning message of insufficient memory appears, try
to remove programs you no longer need.
If the running programs are occupying large memory, reset
the Smartphone.