I am having the same boot problem, in any version the lights on the buttons A to D flash, and the screen displays the message: load error -42, I opened the support ticket, and they only ask me to send it to the reseller authorized. I live in Brazil and around here is practically impossible. I regret the purchase, the product is little more than 1 year, and I did not use it before, it was stuck in the luggage all the time when it came into the customs of my country ... I am very disappointed with the line6, I see that I will stay with my ZOOM G5.