I am having the same issue after uploading the hex file that Hictop provided to get my board reactivated. the following is the verbose message I am getting. If there are experts out there that can help I would appreciate it as I can't make any modification or tweaks to the firmware. Arduino: 1.6.8 (Mac OS X), Board: "Arduino Mega ADK" /private/var/folders/93/lvf90j4959z08056k3sw3xzh0000gn/T/by rlcrozly - Delta Machines