Quote Originally Posted by Qdshayes View Post
Currently I have it in mass storage mode and both the innate drive and the sd card show up in explorer
This made me think you had something in sd which prevented the zumo to work properly, may be a bad file from Express.
Cure is made to ignore these files, but as soon as you loaded the original firmware, zumo was bricked again by that file.
I suggest you format the sd too.