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Not necessarily be the com is 1 maybe another number, check your com and see what number you have. Also as you said earlier can had connected to hyper terminal, So your pc must be connect with your Box. if you can not connected to box by optiflasher try with dreamup 1.3.3.9 last version and see what happen.
And if still can not connect to box try another power supply adapter even for 500S if you have or any one. or try with another pc.
Try all this advices..
And if still can not connect to box try another power supply adapter even for 500S if you have or any one. or try with another pc.
Try all this advices..