Layouts unable to copy from usb stick in offline mode

Hi,
I am trying to work with Xibo in offline mode on Ubuntu 14.04.I made the change in site.cfg file and the xmdsLicenseKey field to make it work in the offline mode. With the same key(xmdsLicenseKey) I downloaded the layouts through offline Client Download and save it in the memory stick.After plugging the stick in the pc running Xibo client, my layouts are not being copied.
Note:The key I am using everywhere is copied from the server under the Display’s Hardware Key after licensing the device