Sure, sorry - I missed your mail
Firmware update app(for Windows/Mac) - working on BT/USB module:
http://pacific-sun.eu/firmware_update/
Firmware files(to upload in controller):
a) for silent drive controllers(V2):
http://www.pacific-sun.eu/pliki/calc..._1.1s23_sd.bin
b) for V1 version (without silent drive) - probably yours:
http://www.pacific-sun.eu/pliki/calcfeeder_1.1s19.bin