Lane GRANDE TT LOCK User Manual page 4

Remarks:
If the lock is non-addable state or
cannot connect to your Bluetooth, please reset
your smart lock and re-add it as follow.
①Remove battery cover out
②Hold the reset button for 5 seconds
Part 2 Unlock/lock by APP via Bluetooth
◎Unlock by touching the lock button, it will pop up 'unlocked'
◎Lock by long-pressing the lock button, it will pop up 'locked'
If you want remote control, you need to connect to WI-FI.
Remarks: If the lock/unlock works in the reverse direction when
operating, please switch the
toggle button to the correct
direction and re-install it.