Trevi FLEX Plus 55 Guide De L'utilisateur page 41

PIN code error
Failed to charge the battery
Failed to add contacts to
phonebook
Failed to set up some features
Enter incorrect PIN codes for
three times in succession.
The battery or the charger is
damaged.
Charge the battery when ambient
temperature is lower than -10°C
or above 55°C.
Poor connection.
The storage space of phonebook
is used up.
Your network not provider the
services.
41
Contact your network service
provider.
Change a new battery or
charger.
Change the environment.
Check whether the plug is
properly connected.
Delete some contacts from the
phonebook.
Contact your network service
provider.