: Completely exit WatchPower or any other monitoring software before starting the reflash tool, as they will block the COM port. Run Reflash Tool UPSReflashTool.exe , select the correct COM port, and load the
Commonly use versions in the 41.xx or 72.xx range. axpert vm iii firmware
You cannot update blindly. You must know exactly what hardware and firmware revision you have. : Completely exit WatchPower or any other monitoring
Yes. This indicates a corrupt or missing firmware. The inverter cannot operate until it is re-flashed. select the correct COM port
Do not attempt an update if your batteries are low or if there's a risk of a power cut. If the inverter loses power during a flash, it may "brick."
The firmware enables the inverter to communicate directly with battery BMS systems.