Why is the cellular signal strength LED blinking blue on FWA505?
Zyxel_JoyLee
Posts: 75 
Ally Member
Ally Member
The possible reasons for the cellular signal strength LED blinking blue are as follows:
- No SIM card
- Invalid SIM card
For information on other LED status indicators, please refer to the Quick Start Guide.
https://www.zyxel.com/global/en/support/download?model=nebula-fwa505
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