I'm working on 2 Phoenix compact 230V 2000W inverters that are paralleled. They have an overload light on the slave with nothing connected to the output. I'm hoping an update to the firmware would address the issue or at least eliminate variables. I cannot use Victron Connect because the firmware is V159 and it needs to be over V200. Looks like I need to use Victron Flash to update but I can't find the firmware flash file (.vff) on Victronflash website. I emailed them requesting the file as the instructions say but they are not responding. Any ideas?