You may want to contact your friendly Freescale support.
I assume that the TAP no longer enumerates as USB device under Windows.
Assuming that the TAP HW is still ok, this would indicate loss of the firmware for TBD reasons.
In that case, recovery is possible, but it requires opening the tap and it requires software tools and images not available outside Freescale.
There is nothing that can be done here on the Forum.