Appendix 1: Led Operation - C Spire U772 User Manual

Appendix 1: LED Operation

Your device has LED lights that indicate the following details.
USB Modem
powered by
LED Status
3G Mode
3G in service and Stand by
Ready to Connect
Power ON Boot and Reset
3G out of service or is still
acquiring service
3G CDMA No service
3G Data Connected Active
HOST
3G Data Connected Dormant
Computer
4G Mode(LTE)
4G(LTE) in service and no activity
Ready to connect 4G
4G(LTE) out of service or is still
acquiring service (every 1 sec)
4G(LTE) Data Connected Active
4G(LTE) Data Connected
No Data activity, Idle Mode
4G(LTE) Data Shout Down Mode
For Power Saving
3G Mode
3G in service and Stand by
Ready to Connect
Power ON Boot and Reset
3G out of service or is still
acquiring service
3G CDMA No service
3G Data Connected Active
3G Data Connected Dormant
4G Mode(LTE)
4G(LTE) in service and no activity
Ready to connect 4G
4G(LTE) out of service or is still
acquiring service (every 1 sec)
4G(LTE) Data Connected Active
4G(LTE) Data Connected
No Data activity, Idle Mode
4G(LTE) Data Shout Down Mode
For Power Saving
LED Colors
3G
Flash every 1sec
Flash every 1sec
Flash every 0.5sec
Flash every 3sec
3G Disabled Low Power Mode
Flash every 1sec
Flash every 1sec
Flash every 0.5sec
Flash every 3sec
3G Disabled Low Power Mode
LED Color (Left)
3G Enabled 4G Disabled Shutdown Mode
ON
OFF
OFF
OFF
OFF
OFF
OFF
3G Enabled 4G Disabled Shutdown Mode
ON
OFF
OFF
OFF
OFF
OFF
OFF
29
4G LED Color (Right)
OFF
OFF
OFF
OFF
OFF
OFF
4G Enabled
On
Flash every 1sec
Flash every 0.5sec
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
4G Enabled
ON
Flash every 1sec
Flash every 0.5sec
OFF
OFF
Wi-Fi LED Color (Center)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
Flash every 0.5sec
Flash every 3sec
ON
ON
Flash every 0.5sec
Flash every 3 sec
ON