Easun Firmware Update

The exact button names vary. The most common tool is the Remoting Update Tool.

  • Choose the target:
  • Start the update:
  • Wait for 100% and a message saying "Update Successful" or "Verify OK".

    • Updating firmware on an Easun inverter is not like updating Windows or a smartphone. There is no "rollback" button if the power goes out. easun firmware update

    Critical Warnings:

    Do not proceed unless you have a stable AC power source for your computer and a fully charged battery bank. The exact button names vary

    If you switched from Lead-Acid to Lithium (LiFePO4), older firmware may struggle with BMS communication via CAN bus or RS485. Updated firmware expands the Pylontech-compatible handshake protocols. Choose the target:

  • Verify the new firmware:
  • Reconnect PV and AC input and test normal operation.