147
Problem
Possible causes
Possible solution
Cannot turn
your phone
on
Battery power has been
depleted.
Recharge the phone’s
battery.
SIM card
error
SIM card malfunction or
damage.
Take the SIM card to
your service provider for
testing.
SIM card inserted
improperly.
Insert the SIM card
properly.
Debris on the SIM card
contacts.
Use a soft, dry cloth to
clean the SIM card
contacts.
Unable to
connect to
the network
SIM card invalid.
Contact your service
provider.
You are not within the
network’s service area.
Check the service area
with your service
provider.
Poor signal.
Move to an open space,
or if you are inside a
building, move closer to
a window.
Summary of Contents for Concord II
Page 1: ...1 ZTE Concord II User Manual and Safety information ...
Page 10: ...10 Hearing Aid Compatibility HAC regulations for Mobile phones 161 CTIA Requirements 163 ...
Page 12: ...12 microSDHC card slot Charger USB jack Flash Speaker Camera Headset jack ...
Page 102: ...102 NOTE Touch Start to use Google Maps Navigation beta and get turn by turn voice directions ...
Page 130: ...130 You can watch YouTube videos or upload your own ...
Page 134: ...134 2 Touch an app to open its details screen 3 Touch Uninstall OK ...