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Understanding JEM Color/Light Patterns

JEM Device 
The following table summarizes the main light signals emitted by the JEM device. 
Color/Meaning
Required Action
​Blue Wave (repeating)​
JEM seeks a Bluetooth connection with JEMPass app.
If pattern persists for more than 5-7s, troubleshoot. 
​Blue Wave + Purple Flash ​
JEM connected to JEMPass app. 
Expected behavior. No action required. JEM will perform assigned job.
​Green Wave​
JEM waiting for fingerprint
Place and lift enrolled finger on JEM sensor. Video. ​
IMPORTANT - if you are not trying to use JEM to sign in or decrypt a saved credential, DO NOT scan your fingerprint. 
​Red flash following Green Wave ​
Fingerprint scan or verification failed
Try scanning fingerprint again. Video. 
​
Charging Dock
The following table summarizes the various light signals emitted by the JEM device. 
Color/Meaning
Required Action
No light 
Indicates Dock is not receiving power 
Plug Dock to USB power source or change the USB power source. See detailed instructions. Ensure cable is plugged in securely at both ends. If problem persists, troubleshoot. 
Steady orange glow - No JEM on Dock
JEM Dock is receiving power  
No action required
Steady orange glow - JEM is on Dock
JEM Dock is receiving power but JEM is NOT charging correctly  
Please verify that the contact pads at the bottom of the JEM device line up correctly with the contact pins of the Charging Dock. See detailed instructions.
Steady red glow 
JEM Dock is receiving power • JEM device correctly placed on the Dock and is receiving charging current 
No action required  
 
Steady green glow 
JEM is adequately charged 
No action required
​
​

Troubleshooting - Previous

JEM glows blue then purple and goes off - nothing else happens

Explainer Video - How JEM and JEMPass Work together

Last modified 2yr ago

Color/Meaning	Required Action
Blue Wave (repeating) JEM seeks a Bluetooth connection with JEMPass app.	If pattern persists for more than 5-7s, troubleshoot.
Blue Wave + Purple Flash JEM connected to JEMPass app.	Expected behavior. No action required. JEM will perform assigned job.
Green Wave JEM waiting for fingerprint	Place and lift enrolled finger on JEM sensor. Video. IMPORTANT - if you are not trying to use JEM to sign in or decrypt a saved credential, DO NOT scan your fingerprint.
Red flash following Green Wave Fingerprint scan or verification failed	Try scanning fingerprint again. Video.

Color/Meaning	Required Action
No light Indicates Dock is not receiving power	Plug Dock to USB power source or change the USB power source. See detailed instructions. Ensure cable is plugged in securely at both ends. If problem persists, troubleshoot.
Steady orange glow - No JEM on Dock JEM Dock is receiving power	No action required
Steady orange glow - JEM is on Dock JEM Dock is receiving power but JEM is NOT charging correctly	Please verify that the contact pads at the bottom of the JEM device line up correctly with the contact pins of the Charging Dock. See detailed instructions.
Steady red glow JEM Dock is receiving power • JEM device correctly placed on the Dock and is receiving charging current	No action required
Steady green glow JEM is adequately charged	No action required