Smart Lock eKey Estimated reading: 1 minute 681 views The eKey is essentially an electronic Key that can be used via your mobile device. when connected to the Smart Lock via Bluetooth, you may easily press the eKey as shown below to unlock the door.You may use the eKey remotely provided you have installed and paired a G2 Gateway at your unit. This G2 Gateway acts as a bridge between the Bluetooth and Wi-Fi. Note: The eKey works similarly on both the iBilikPlus app as well as the TT Lock app.