Indicator Status Description 
Battery
Green solid
High (battery in use) or fully 
charged
Green blinking
High (charging) or PIN entry 
needed
Yellow solid Medium (battery in use)
Yellow blinking
Medium (charging) or PUK 
entry needed
Red solid Low (battery in use)
Red blinking Low (charging)
O No battery installed
Network Signal 
Strength
Green solid  
(icon and bars)
Signal strength (low to high)
Red solid (icon),  
O (bars)
Limited or no service, 
searching for service, or 
network registration failed
Red blinking  
(icon and bars)
nano-SIM card error, no nano-
SIM card, or other issues
DEVICE INSTALLATION
Your device works with your wireless service provider’s cellular network 
instead of your home’s phone jacks.
Place your device in an area where there is a strong signal from a cellular 
tower, typically near a window or wall. 
NOTE: Some electronic devices may be susceptible to electromagnetic 
interference. Locate the device away from the connected phone, TV 
set, radio and other electronic equipment to avoid electromagnetic 
interference. 
GETTING TO KNOW YOUR DEVICE
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