Hello,Thanks for the help. I installed the generic driver but still have the same trouble. Also tried the NoZap driver, same. Generic driver is listed in kextstat on Terminal, 145 0 0xffffff7f82514000 0xa000 0xa000 net.sourceforge.osx-pl2303 (1.0.1) <112 34 5 4 3>I tried to check CHIRP log in terminal but couldn’t get it to work.Maybe my cable is no good? Its a Maxton RPC-Y7R-U so is based on a Prolific chip from what I can figure out.Thanks,Roberto