HI ImranI received new box , are there any instruction to be followed before change to new box 

I reconnected the cable as shown in the picture, restarted and tried again no changes 

HI Imran Attached the photo for referencewhite and black cable  

HI ImranI followed the above steps, installed the downloads as instructed above still I could not find the Silicon Labs COM files

HI ImranThanks for the files, I followed as per the instruction provided i am not able to get com3 on the device managerI am seeing Standard serial over Bluetooth link (COM3)i opened putty and entered COM3, putty has opened not able to edit anything ...