In order to udate the firmware in the Xemo controller follow the steps below

• Unzip the firmware and store it into a directory on your PC
• Connect the RS232 interface of the Xemo controller with the COM interface of the PC
• Turn the hex rotary switch to mode "A"
• Turn on power
• Start "St10Flasher.exe"
• Configure the serial interface (Status window, button "Set port") to Baudrate 57600, N,8, 1
• Enter window "File to program" and select the firmware file in the directory "vers" for instance "667_252.h86"
• Start flash download by "Program & Verify"
• After 30 to 40 seconds you should get the Ok message in the main window
• Turn the rotary switch the the original mode, switch off power and some seconds later on again
• You should verify the successful firmware update by XemoGo (you can display the firmware number by pull down menu "System")