How to load Firmware (manual mode):
Typically firmware should be loaded via TSshield. 

-Store a firmware *.exe file to the USB memory. 
-Insert the USB memory to the instrument’s USB port. 
-Turn on the instrument while holding "alpha" key and "light bulb" key to enter “Update mode”. 
-Push ‘Yes’. Then, the update will start automatically. 
-After finishing installing, the instrument will be restarted automatically.