Once the tool says "Update Successful," the inverter will restart. Re-check the U1/U2 screens to confirm the new version. Critical Safety Warning
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." axpert vm iii firmware
Voltronic Power typically provides firmware to distributors rather than hosting a public download portal. To find the latest version: Once the tool says "Update Successful," the inverter
Click "Update." The inverter fans may spin up, and the screen might go blank or show "UP." Once the tool says "Update Successful