The progress bar appeared. 10%... Writing Sector 0x00...
: Certain updates (e.g., version 6.35) enable the inverter to run without a battery, which is a key feature for testing or specific setup needs. easun firmware update
: Newer versions (like version 76.03) can fix discrepancies where paralleled inverters show different voltages on their displays. The progress bar appeared
Community-modified "Beta" firmwares are popular for fixing MPPT "stuck" issues, though these are unofficial and carry higher risk. easun firmware update
Look for DSP_XXXXX.hex or RemotePanel_XXX.bin . A valid file is usually between 80KB and 250KB.