If you find that the USB on your DSQD or M2R is not allowing you to make firmware updates or connect to Wireless Designer, but your unit is otherwise operating normally, you may need an EEPROM update.
EEPROM stands for Electrically Erasable Programmable Read-Only Memory and is a board chip integrated in electronic devices to store small amounts of data by allowing individual bytes to be erased and reprogrammed. EEPROM chips in Lectrosonics equipment control the behavior of the USB jack. Fortunately, updating your EEPROM is something you will rarely, if ever, have a need to do. But if it does need to be done, doing it yourself will save valuable time in not having to send it in to us.