Most Ezviz cameras have a microSD card slot. This is the most direct downgrade method.
Open the configuration tool and locate the camera's IP address. Navigate to System Maintenance and select Remote Upgrade ezviz downgrade firmware
Look for the newly visible button under your online devices. Most Ezviz cameras have a microSD card slot
You cannot use any random file. Ezviz firmware is hardware-specific. You need the exact firmware for your and hardware version . follow the SD Card method exactly
If you decide to proceed, follow the SD Card method exactly, triple-check your hardware version, and accept that you might be buying a new camera tomorrow.