Other Important Information
TroubleshootingVIVA Plus
51
Other Important Information
Troubleshooting
Problems Solutions
The mobile phone can
not be switched on.
- No battery inserted.
- Battery is not charged.
No signal quality is
displayed.
- No network connection. The mobile
phone is in a location where there is
no network service. Move to a differ
ent location or contact your mobile
service provider.
Keypad does not func
tion or only functions
very slowly.
- The operating speed of the display is
reduced in the case of low tempera
tures. This is normal. Use the phone
in a warmer location.
A message appears in
the display for some
functions, indicating
execution/use is not
possible.
- Many functions can only be used af
ter the respective service has been
applied for. Therefore, please con
tact your mobile service provider lo
cally for more details.
Screen frozen or no
response when pressing
keys.
- Remove the battery for 3 minutes
and try again.
No connection to the
mobile telecommunica
tion network.
- Contact your mobile phone provider.
- Check that the SIM card is inserted
correctly.
The battery cannot be
charged or is empty
within a short time.
- Battery is defect.
- Place the mobile phone correctly in
the charging unit or connect the pow
er adapter properly. Clean the con
tact surfaces on the mobile phone
and power adapter with a soft, dry
cloth.
- Charge the mobile phone for at least
4 hours.
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