When I wiggle the connector on the USB end of the module It connects or disconnects depending on which way I wiggle it. It is as if contact is marginal on the specialized USB socket on the module.
Thanks for posting here! I apologize for the frustration caused by the unit. Just shoot us an email at firstname.lastname@example.org with the amazon order ID through which the unit was purchased along with a link to this thread and we will help resolve the issue.