NDEB, LEB, MT20W and Control locks are able to be downgraded to an earlier version of the firmware.
Some devices, once they have the most recent updated firmware, you are unable to downgrade it to an earlier version. This is due to Bluetooth (BLE) updates on certain devices.
To downgrade the firmware:
Connect to the lock you want to downgrade the firmware on
Click on More, then click on Update firmware
In the next window, press and hold the Update button
You will see a list of older FW versions and you can select accordingly
Here are the versions that you CANNOT downgrade from as of 5/2024
CTE devices that are programmed with Firmware 01.09.02 may not be Firmware downgraded to a previous version.
GWE devices that are programmed with Firmware 01.64.04 may not be Firmware downgraded to a previous version (01.63.02 and older).
LE devices that are programmed with Firmware 01.14.01 may not be Firmware downgraded to a previous version (01.13.02 and older).
LEB devices that are programmed with Firmware 03.13.01 may not be Firmware downgraded to a previous version (03.11.02 and older).
NDE devices that are programmed with Firmware 02.19.01 may not be Firmware downgraded to a previous version (02.18.02 and older).
NDEB devices that are programmed with Firmware 03.13.01 may not be Firmware downgraded to a previous version (03.11.02 and older).
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