Ezviz Downgrade Firmware [exclusive] Page

(like Hikvision or Hilook) that may be blocked in newer versions. Preparation & Requirements

It is difficult but possible with UART serial connection (requires soldering). For most users, simply note the current version and keep a copy of the .dav file if you can extract it. ezviz downgrade firmware

| Symptom | Likely cause | Fix | |--------|-------------|-----| | No response after power-on | Wrong firmware file | Recover via TFTP (Method C) | | “Upgrade failed” in Batch Tool | Firmware version not older (same or newer) | Find an earlier build | | Flashing orange LED forever | SD card not FAT32 or wrong filename | Reformatted as FAT32, use exact naming | | Camera offline after downgrade | Network settings reset | Reconfigure WiFi via app (hold reset to enable AP mode) | (like Hikvision or Hilook) that may be blocked

Official EZVIZ policy states that no downgrade methods are provided once firmware is updated for security reasons | Symptom | Likely cause | Fix |

Contact EZVIZ Support directly to request a specific older firmware version for your model.