Zte Telstra 4G User Manual page 114

Problem
Unable to
connect to
the network
PIN Code
blocked
Unable to
enter new
contacts
Possible causes
card contacts.
(U)SIM card invalid.
You are not within the
network's service area.
Poor signal.
You have entered an
incorrect PIN code
three consecutive
times.
SIM card has a fixed
limit of contacts
Possible solution
clean the (U)SIM card
contacts.
Contact your service
provider.
Check the service area
with your service
provider.
Move to an open
space, or if you are
inside a building, move
closer to a window.
Contact your service
provider to obtain your
PIN Unlocking Key
(PUK code)
Delete unnecessary
data from the contact
list.
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