LG Optimus L4 II Guide De L'utilisateur page 386

Troubleshooting
Message
No
applications
can be set
Calls not
available
Phone cannot
be switched
on
86
Possible causes
Not supported by
service provider
or registration
required.
Dialling error
New SIM card
inserted.
Pre-paid charge
limit reached.
On/Off key
pressed too
briefly.
Battery is not
charged.
Possible corrective measures
Contact your service provider.
New network not authorized.
Check for new restrictions.
Contact service provider or reset
limit with PIN2.
Press the On/Off key for at least two
seconds.
Charge battery. Check the charging
indicator on the display.