Check the device's or "Information" menu to confirm the version now displays v1.1.0 .

Always back up your current device settings or "Tune Database" before applying an update. Update Firmware & WinPV Software Power Vision

Locate the extracted folder, which should contain the firmware files and an executable (e.g., PVUpdateClient.exe or ReflashTool.exe ). 2. Connect Your Device

Ensure the inverter is powered on but not under heavy load. Some updates require a RS232 or USB connection to a laptop. 3. Run the Update Utility

Since the file is a .7z (7-Zip) archive, you must first decompress it. Download and install a tool like 7-Zip or WinRAR.

Once the progress bar reaches 100%, the device will typically reboot.

Connect your PV-1B, PV-2B, or PV-3B device to your computer using a USB cable. The device should display "PC Link Mode Active" .

: Launch the update application found in the extracted folder (often titled PV Update Client or ReflashTool_Xseries ).