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138
Problem
Possible causes
Possible solution
Echo or
noise
Poor network link quality
on the part of your
service provider.
End the call and dial
again. You may be
switched to a
better-quality network
link or phone line.
Poor local telephone line
quality.
End the call and dial
again. You may be
switched to a
better-quality network
link or phone line.
Unable to
select
certain
features
Your service provider
does not support these
features, or you have not
applied for services that
provide these features.
Contact your service
provider.
Battery not
charging
The battery or battery
charger is damaged.
Contact the dealer.
The phone’s
temperature is below
0°C or higher than 45 °C.
Adjust the battery
charging environment to
avoid extremes of
temperature.
Poor contact between
the battery and charger.
Check all connectors to
ensure that all
connections have been
properly made.
Содержание Z755
Страница 1: ...1 Z755 Mobile Phone User Manual ...
Страница 12: ...12 Charging micro USB Jack Power Key Back Camera Flash Headset Jack Back Cover Speaker Microphone ...
Страница 14: ...14 2 Hold the micro SIM card with the cut corner oriented as shown and slip it into the card slot ...
Страница 23: ...23 Status Notifications Favorite Tray Shortcuts Shortcut Widget ...
Страница 52: ...52 3 Touch Edit profile and edit the VPN settings you want 4 Touch Save ...
Страница 72: ...72 3 Touch to select the contacts you want to remove and then touch 4 Touch OK to confirm ...