Reply to Firmware upgrade adapter kit question.

Used the search but no joy. I took my VCI to the place i bought it as they had the adapter. Tried updating the firmware but kept getting the boot error. My question is....they got their adapter from Vestax for the 1.2 update. Will that adapter work for the DJ Techtools firmware update? Or do i need to get the DJTechtools adapter? Will order it if that is the case. Thanks.