Update E1746.md (Koenkk#1614)

Note added about making shure to press the reset button.

Author: pixeldoc2000

docs/devices/E1746.md

@@ -29,6 +29,9 @@ pageClass: device-page
 ### Pairing
 Push the reset button of the device with a paperclip for 5 seconds.
 While pairing the LED is flashing/dimming slowly. Once the pairing is finished, the LED stays on.
+
+**NOTE:** If you have trouble pairing the device, make sure you really press the reset button. It is quite easy to "miss" the reset Button through the little hole in the case. Try a paperclip with thin enough wire and "feel" for the button.
+
 <!-- Notes END: Do not edit below this line -->
 
 ## OTA updates