Easun Firmware Update Today

This is usually due to a poor-quality USB-to-Serial adapter or the wrong COM port selection. Check your drivers.

Identify the in Windows Device Manager under "Ports (COM & LPT)". Prepare for Reflash : easun firmware update

Example: U1 = 12.21, U2 = 12.11

: Ensure the inverter is running on batteries ; disconnect AC input and PV panels for safety. This is usually due to a poor-quality USB-to-Serial

. Because EASUN inverters are often clones of Voltronic Axpert designs, using the wrong firmware version can brick the device. Power Forum Pre-Update Checklist Identify Version Prepare for Reflash : Example: U1 = 12

The Easun firmware update process is relatively straightforward. I downloaded the update file from the Easun website and followed the instructions provided. The update process itself took about 30 minutes to complete, which is relatively quick compared to other firmware updates I've done in the past. However, I did encounter some minor issues with the update software, which required me to restart my computer and try again.