- The first time, when the microcontroller is running, Wisp628 can't identify what uC is running... "IOError: device word 3FFE or FFFF, can not identify this target: defect, unsupported, or 16x84" - At the end of flashing, "IOError: verification failure: different data at address 2007: file=3F10 target=3FFE" 2006 = "device ID" 2007 = "configuration word", aka "fuses" (search the datasheet for "2007", it shows up)