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 files and revision note from the link below:

[Hotfix] Entry 2.x Firmware