Thank you for response, unfortunatlelly I have already tried reset buton but it doesnt work, I can see when I give the switch on command to laser that the led on board powers up everytime i click on the power on laser button in benbox, but laser will not switch on. In my case the arduinotool is unresponsive. And it not gives the right port COM35. There is nothing under COM11. Everything else works.
UPDATE: I have changed port to COM11 and made all the described steps but without success, except that the tool arduinotool.exe is now responsive (no graphical feedback but it uploads the hex rom). Laser still NOT switches on.