What do the various LED signals mean?

Home / FAQ zum ekey bionyx System / What do the various LED signals mean?

The four LED segments of the ekey fingerprint scanner signal the different operation modes as well as error cases. Different light colors are used: Blue, yellow, green, and red. These also indicate certain scenarios by means of different intervals in which they light up.


The top-left LED segment flashes blue:
The ekey fingerprint scanner is ready for activation.


The top-left LED segment is continuously illuminated blue while the top-right LED segment flashes blue:
The connection to the local network is being established.

Both top LED segments are continuously illuminated blue, while the bottom-right LED segment flashes blue:
The connection to the ekey bionyx system is being established.

The two top LED segments and the bottom-right one are continuously illuminated blue, while the bottom-left one flashes blue:
The devices are being configured.

All four LED segments are continuously illuminated blue:
The ekey fingerprint scanner is in its normal state of operation.

All four LED segments flash blue:
The activation time has been exceeded. The ekey system is locked. Disconnect the fingerprint scanner from the power supply for at least 10 seconds. Then reconnect to the power supply. Then position yourself near the device to continue activation.

With ekey xLine/sLine: If the top-left LED segment still does not flash blue on its own approx. 15 seconds after the power supply has been established (activation mode), reset the system using the reset button on the ekey control unit DRM.


All four LED segments are continuously illuminated orange:
The selected finger can be stored.

All four LED segments are continuously illuminated green:
An authorized finger has been recognized and the door opens.

All four LED segments are continuously illuminated red after a finger has been placed:
The user is not authorized to open the door or the finger was not correctly recognized. Note that the finger must be placed correctly in order for it to be recognized.

Error messages

The error messages are displayed approx. 3 seconds after a successful finger recognition (all four LED segments are continuously illuminated green). After that, the ekey fingerprint scanner is back in its normal state of operation (all four LED segments are continuously illuminated blue).


The top-left LED segment flashes red:
The bus communication between the ekey fingerprint scanner and the ekey control unit has been disrupted.
If the system does not return to normal, proceed as follows:
1. Disconnect the power supply.
2. Wait at least 10 seconds
3. Restore the power supply. The system should now return to normal.
If, contrary to expectations, no connection is established between the ekey fingerprint scanner and the ekey control unit, contact ekey support (support@ekey.net).

The top-right LED segment flashes red:
Your WLAN network is not available. Check that the selected WLAN network is available.

The bottom-right LED segment flashes red:
There is no internet connection.
Check your internet connection: Your router may be switched off.

The bottom-left LED segment flashes red:
A command was not sent correctly to the smart home system.

Both left LED segments are continuously illuminated red and both right LED segments are continuously illuminated blue:
The matching of the finger has been interrupted. This can have several causes:

  • An incorrect finger position (fingertip);
  • The finger was not placed on the sensor long enough;
  • The finger was not held still during matching;
  • Interference on the sensor (water, coarse contaminants).

Make sure you hold your fingers correctly and make sure that there are no foreign objects on the fingerprint scanner.


Both left LED segments are continuously illuminated red and both right LED segments are continuously illuminated green:
No function (no relay) has been assigned to the finger.