Hotfix firmware for 2.x BioEntry Plus, BioEntry W, BioLiteNet, Xpass, Xpass S2 have been released. 

Each device's fixes are different, but one common fix is regarding the issue below: 

Device ID changes to zero and does not work normally.

Please update your firmware to prevent such issues. 

You can download the firmware and revision note from the links below:

BioEntry Plus 2.3.4:

BioEntry W 2.3.4:

BioLiteNet 2.3.5:

Xpass 2.4.4:

Xpass S2 2.4.4: