Hi, I have a similar problem. The display shows 0000 when I turn it on, without showing the software version. I have checked the micro sd card, the utility says no problem. I copied the new software onto the card, pressing OCT while powered up, , nothing happened. I tried a different power supply, no change. I am not quite sure what I was doing when the problem came about. I had finished recording on track 2 and then perhaps tried to go to the previous loop (both in tempo 104). I may have pressed quantize when it hadn’t been pressed while recording another track of the loop, not sure. I was connected with midi in from a Berhringer X touch midi controller. Also had midi out to a singular sound Beat Buddy via a midi merge box mixing in midi from a KAT drum pad. Absolutely no button lights up when pressed. Can you help? Many thanks!