Navigate through your inverter’s LCD screen using the buttons. Look for settings or informational screens displaying U1 (Main CPU firmware) and U2 (Secondary/MCU firmware). Write down these exact numbers.
The software will display a progress bar (0% to 100%). The inverter fans may spin at full speed, and the screen might turn off or flash.
Updating firmware is generally safe but can potentially "brick" your inverter. Proceed with caution:
Updated communication protocols for WiFi monitoring. 2. Preparation: Essential Requirements
If your laptop lacks a native serial port (RS232), you will need a high-quality USB-to-Serial adapter. Look for adapters utilizing the FTDI or PL2303 chipsets, as cheap alternatives frequently drop connections. Step 4: The Step-by-Step Update Process easun firmware update
Inverter manufacturers constantly refine the software that controls power conversion, thermal management, and battery communication. Updating your EASUN firmware provides several key benefits:
Before downloading files or connecting cables, you must prepare your environment. Treating a firmware update carelessly can permanently damage ("brick") your inverter control board.
Ensure your battery bank is charged above 60%. A stable DC voltage source is the safest way to flash the control board. Step 2: Establish the Data Connection
: Common utilities include SolarPower , WatchPower , or specialized "Reflash" tools like Infinity VLV Master CPU Reflash . Navigate through your inverter’s LCD screen using the
Check your current main CPU (U1) and secondary CPU (U2) versions directly on the inverter’s LCD screen.
Close all programs, restart the computer, ensure the cable is secure, and try again.
After a successful , the EEPROM data is misaligned.
The exact process varies. However, a common method for the main (DSP) firmware is via a Windows PC using a USB-to-RS232 cable and the manufacturer's flashing tool (like ReflashTool). The software will display a progress bar (0% to 100%)
Contact the official or the authorized store via the e-commerce platform where you purchased the device.
This comprehensive guide covers everything you need to know to safely update your Easun inverter firmware. 1. Why Update Your Easun Inverter Firmware?
Ensure your WatchPower or SolarPower monitoring software is completely closed. If monitoring software is running in the background, it locks the COM port and blocks the flash utility.
and set the Baud rate (usually 9600 or 19200, as specified in the update instructions).