Hoverboard comes back to life

Hoverboard came into the Chelmsford FixIt clinic. It would not operate and had a red light on. Unit was disassembled and the battery was disconnected and then reconnected (hard reset) but this did not solve the problem. As a last measure the internet was consulted about any possible solution to this problem. Prof Filipetti found a match in his internet search and was able to perform a resurrection to the delight of a young one.