KARBONN K81 USER MANUAL
6
1. Phone Layout
KARBONN K81 USER MANUAL
27
Callers
cannot
contact you
Please confirm if the mobile phone is on and
connected with the network.
Please confirm if calling is forbidden because
of defaulting.
Please confirm if the SIM card is valid.
Please confirm if the call barring is set.
Unable to charge Poor contact. Please check if the plug is
connected well.
Charge in the environment below 40
℃
or
above 55
℃
. Please change your charging
environment.
The battery or charger is damaged. You need
to replace it.
Unable
to
set
some functions
Wrong operation
；
The network provider does not support the
function, or you have not applied for it.
Note: If the instruction above cannot help you solve problems,
please record
：
Mobile phone model and serial number
Specific content of warranty
Clear statement of problems
Then contact your local dealer or a Karbonn authorized
service center in your area.
