
AT-Telecom
USER-MANUAL AT-B17D
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Unable to charge
the battery
The battery may discharge too
much; so it cannot be charged
until it is connected for certain
time.
Its performance has worsened.
Unable to register
to the network
Too weak signals or strong
interference.
SIM card installed properly? Bad
contact or SIM card damaged? If
the SIM card is broken, please
contact the network operator to
replace it.
Unable to access
service menus.
Maybe the SIM card does not
support service function.
Содержание AT-B17D
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