I have a remote Smartsolar MPPT 100/50 in a confused state where it's not charging. From a duplicate test unit I have here that got into the same state, I can tell that rebooting it will clear the problem. But with the remote unit the only option I have is to upload a firmware update, but I don't have a firmware file to send it. Is it possible to get the current firmware file for this unit so I can test updating it as a way of forcing a reboot?