Downgrading firmware may void your device's warranty, and there's a risk of bricking the device if not done properly. Proceed with caution and at your own risk.

: You must install the desktop version of EZVIZ Studio on a Windows computer. Local Network

: Download the official client from the EZVIZ Support Center.

The camera will reboot automatically once the process is finished. Do not close the software or unplug the camera during this time. Alternative Method: TFTP Force Flash

Leo loved his EZVIZ camera. It was reliable, clear, and most importantly, it played nice with his home server. One Tuesday, he tapped "Update" on the EZVIZ App , thinking he was getting better security.

For stability, plug your camera directly into your router via an Ethernet cable.

| Problem | Free Solution | | :--- | :--- | | "Firmware mismatch" error | Double-check Hardware Version. A C3X V2.0 cannot take firmware for C3X V1.0. | | Camera stuck on "yellow blinking light" | Perform a 30-second hard reset: unplug, hold reset button, plug in, keep holding for 30 seconds. | | Downgrade works, but app forces re-update | In the EZVIZ app, go to Settings → Firmware Update → Disable "Automatic update" (toggle off). Also block the camera’s internet access via your router’s parental controls (free DNS filtering). | | Lost cloud subscription after downgrade | You don’t lose it, but older firmwares may not support newer cloud plans. Use local SD card recording instead—free forever. |

Install EZVIZ Studio on a PC connected to the same network as your camera.