The firmware released in the future may not work with BioStar 1.93 because of the changes made in the firmware.
The last compatible firmware tested with BioStar 1.93 are as follows:
BEW2 : 1.1.5 - 20171026
BS2 : 1.5.0 - 20170927
BSA2 : 1.4.0 - 20170927
BSL2 : 1.2.4 - 20170830