problems to Installing a software in my Humax 5400

[93261]

Dear Friends,
I have some problems to Installing a software in my Humax 5400.I was trying to install Humax HDF File by WDN4OAK
After i selected COMM.PORT:1,Baudrates 115200bps & putting HDF File and After Clicking Download button,I received a "Error accesing Commnication port... Please Check your comm.Port.(Error:5)"

Could you tell me that I have problem in my CPU or in my programe WDN4OAK

If anyone knows about this problem,I will be waiitng for the answer

best Wishes,
93261

 

[Topper]

Have you got the correct type of cable??, I think it should be a null modem cable