((failed to communicate with radio: device reports readiness to read but returned no dada (device disconnected?)) Error   no other code numbers. I get this wile trying to download from a BF-F8HP and a FT1D 

This problem left the BF-HP as it was before the attempt to download and wiped the memory on the FT1D

I tryed the same cables and radios on a different computer with windows vista and chirp build 20150405 programming worked on both units. not sure if I'm missing something or if this a chirp problem.  I'd Like to try back dating to 20151009 on the Ubuntu unit. can someone give me the terminal command line to back date chirp. or any other help would be appreciated.

thanks,

    Nick