You will need a standard MicroSD card (preferably 8GB to 32GB) formatted to the FAT32 file system. Larger cards formatted to exFAT will not work for firmware flashing.
Ensure your camera is plugged into a reliable power outlet during the process. Power loss mid-flash will ruin the device. Step 1: Locating the Correct Legacy Firmware File
Here’s a quick checklist of what to do before starting the downgrade process:
Manual flashing can void your manufacturer warranty. Preparation Checklist ezviz downgrade firmware free
Newer firmware often blocks the ability to use cameras with third-party software like Home Assistant, Blue Iris, or standard DVRs.
: Download and install the EZVIZ PC Studio on a Windows computer. Unlock Advanced Settings :
This free method forces the camera's hardware bootloader to read an older firmware file directly from local storage upon power-up. Step 1: Format the MicroSD Card You will need a standard MicroSD card (preferably
(usually a .dav or .bin file specific to your model). EZVIZ Studio Software (Official PC software). Camera Verification Code (Found on the camera sticker). Step-by-Step: Downgrade EZVIZ Firmware (Free Method)
This method uses a generic Hikvision tool and has been reported to work for restoring RTSP on the EZVIZ DB1 doorbell.
The firmware file name usually contains the version number (e.g., V5.2.0 ). Ensure the version you are installing is older than the one currently running on the device. Power loss mid-flash will ruin the device
Insert your MicroSD card into your computer. Format it cleanly to the FAT32 file system. Do not use exFAT or NTFS.
If the downgrade is successful, your camera will reconnect to your Wi-Fi network using its previous settings. However, if left unattended, the EZVIZ cloud platform will immediately attempt to push the problematic update back to your device. To prevent this: Open the on your smartphone. Go to the camera's Settings (gear icon). Scroll down to Device Version or Firmware Update . Locate the Auto-Update toggle and turn it OFF .
Install EZVIZ Studio on a PC connected to the same network as your camera.
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