crwdns2934241:0crwdne2934241:0 cdbach
crwdns2934249:0crwdne2934249:0:
I experienced the samme error (9) - and the only thing I had to do, was to use another USB port on my MacBook.. Exact same USB cable (original from Apple), but used the port on the right hand side instead of the left - and it solved my problem.
crwdns2915684:0crwdne2915684:0:
open