Led Operation - Sierra Wireless AirCard 330U Quick Start Manual

The two LEDs show the current status of the AirCard 330U
modem.
Color / State
Off
Blinking
Blinking
Blinking
Solid
Solid
Solid
For LED troubleshooting information, see page 10.
5

LED Operation

Power LED
Not powered
—
Firmware is
updating.
Do not remove
your AirCard
330U.
Initializing
—
Powered on
AirCard 330U
error
Data LED
Unable to
detect service
LTE network
detected
4G network
detected
2G network
detected
Connected to a
LTE network
Connected to a
4G network
Connected to a
2G network