The safest way to get a legacy file is to ask EZVIZ support. Frame your request around a specific technical glitch caused by the update. State that your local smart home setup requires a specific older build to function. Support agents will often email you the correct, verified .dav or .bin file for your exact serial number. Search Trusted IPCam Communities

Before you can attempt a manual downgrade, you must unlock the settings in the EZVIZ Studio PC application. Download and install EZVIZ PC Studio on a Windows computer.

Unlike some open-source camera brands, EZVIZ uses a closed, secure ecosystem.The company does not publicly distribute older firmware files (usually in .dav or .bin formats).Furthermore, the EZVIZ mobile app and official desktop studio software do not offer a "roll back" button.

If you encounter difficulties during the downgrade process, these community resources may provide assistance:

Select the camera you want to downgrade, then click on the "Advanced" button. Navigate to the "System" menu and then to "System Maintenance".

While continuing to hold the reset button, plug the power cable back into the camera.

Downgrading the wrong firmware will (turn it into a useless, blinking paperweight). To avoid this:

Connect your PC directly to the same Wi-Fi network or router as your EZVIZ camera. Open the tool to discover your camera's local IP address.

: Rename the firmware file to digicap.dav (the standard name for Hikvision/EZVIZ firmware updates) and place it in the root directory of the SD card. Flash the Device : Power off the camera. Insert the SD card. Power the camera back on.

Older firmware may lack patches for known hacking exploits.

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Press and on the camera body.

Connect the EZVIZ camera to the same router using an Ethernet cable. Plug the power cable into the EZVIZ camera.

Unplug your internet router for 60 seconds, then plug it back in.

An Ethernet cable connection is highly recommended over Wi-Fi for stability. Finding the Correct Firmware

How to Downgrade EZVIZ Firmware for Free: A Complete Step-by-Step Guide