XD1170D/1280D Service Guide
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... item "Skip Boot Loader Area (load 1 all but the first 16KB)." 4. If the firmware is ready, click "Start Download" to erase the flash memory. (Note: If the error message "cannot open USB driver No projectors found" appears, please unplug the USB Cable and replug, then re-do 4. Click "Reset Bus" to process...
... item "Skip Boot Loader Area (load 1 all but the first 16KB)." 4. If the firmware is ready, click "Start Download" to erase the flash memory. (Note: If the error message "cannot open USB driver No projectors found" appears, please unplug the USB Cable and replug, then re-do 4. Click "Reset Bus" to process...