Fibaro Door Sensor FGK 101 reset

Don't worry, it took me SEVERAL attempts to reset a sensor...

1. Take off the Sensor's cover
2. Remove battery
3. Make sure the back TMP button is NOT pushed
4. Touch the Sensor's body with a magnet
5. Insert the battery
6. Remove the magnet from the Sensor's body
7. Remove the battery
8. Re-install the battery
9. Reset will be confirmed by double LED blink.

to complete the confusion - for another sonsor this worked (afer a dozend attemps)

1. Take off the Sensor's cover
2. Remove battery
3. Make sure the back TMP button IS pushed
4. Touch the Sensor's body with a magnet
5. Insert the battery
6. Remove the magnet from the Sensor's body
7. Remove the battery
8. Re-install the battery
9. Reset will be confirmed by double LED blink.