Zte Cymbal LTE User Manual page 80

Cannot
Battery power has
turn your
been depleted.
phone on
The micro-SIM card
malfunctions or is
damaged.
The micro-SIM
micro-SIM
card is inserted
card error
improperly.
There is debris on
the micro-SIM card
contacts.
The micro-SIM card
is invalid.
You are not within the
Unable to
network's service
connect
area.
to the
network
The signal is poor.
You have entered an
PIN Code incorrect PIN code
blocked three consecutive
times.
Recharge the phone'
s battery.
Take the micro-SIM
card to your service
provider for testing.
Insert the micro-SIM
card properly.
Use a soft dry cloth to
clean the micro-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. If the service
provider provides
the micro-SIM card'
s PUK code, use the
PUK code to unlock
the micro-SIM card.
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