Once the downgrade is complete, verify that the issue you were facing has been resolved.
Press and hold the physical button for 10–15 seconds. Wait for the camera to reboot and voice prompt you.
Older firmware may lack patches for known hacking exploits.
You must source the older firmware version specific to your camera model (e.g., ezviz downgrade firmware free
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While the firmware itself is "free," the process of downgrading is unsupported and risky. EZVIZ intentionally removes older firmware files to protect users from security flaws.
Ensure you have the exact model number (e.g., C6N, C3W, DB1) found on the label. Once the downgrade is complete, verify that the
Watch the TFTP tool window on your PC. Within 30 seconds, you should see text log outputs showing the camera connecting (usually from IP 192.0.0.64 ) and successfully downloading the firmware file.
Visit the official EZVIZ support center and download EZVIZ Studio for Windows. Install the software on your computer.
). These are often shared in community forums or can sometimes be found via direct download links from EZVIZ's servers if you know the exact model path. Step-by-Step Downgrade Process Downgrading an EZViz CS-CV216-A0-31EFR IP Camera - Older firmware may lack patches for known hacking exploits
: Download and install the EZVIZ PC Studio on a Windows computer. Unlock Advanced Settings :
Method 2: The Hikvision TFTP Server Tool Method (Network Flashing)