EZVIZ 4G Camera Not Connecting? Here’s How to Fix It

Step-by-step fix guide | EZVIZ cameras and doorbells

Try this first — Check the SIM first. EZVIZ says you need a compatible Nano SIM with an active mobile data plan, and the SIM’s PIN must be unlocked before you put it in the camera.

This guide is for owners of the EZVIZ CB8 Lite 4G or CB90x Dual 4G Kit whose camera won’t connect over 4G. The steps follow EZVIZ’s guide to a 4G camera that won’t connect, in EZVIZ’s order.

What This Problem Means

EZVIZ’s 4G FAQ covers the SIM first, then a manual APN setup in the app if the camera says “Connection failed”. In that setup, the app sends your network’s APN details to the camera as sound, and the camera beeps twice when it has recognised them.

Common Symptoms

  • The app shows “Connection failed” when the camera tries to connect
  • The camera’s light isn’t flashing blue quickly when you start APN setup
  • The camera doesn’t beep after you send the APN details

Safe Checks You Can Try

1. Use a compatible Nano SIM with a data plan

EZVIZ says a compatible SIM card and an active mobile data plan are required. Both cameras take a Nano SIM (EZVIZ’s UK page for the CB90x Dual 4G Kit, and EZVIZ’s global kit page for the CB8 Lite 4G).

2. Unlock the SIM’s PIN

Make sure the SIM card’s PIN is unlocked before you insert it into the camera.

3. Tap Try APN Configuration

If the camera still says “Connection failed”, EZVIZ says to tap “Try APN Configuration” in the app.

4. Get the camera ready

The camera’s light should be fast-flashing blue. If it isn’t, EZVIZ says to press and hold the RESET button for 4 seconds to reset the camera.

5. Enter your network’s APN details

Enter the APN and the Authentication Type, then tap Submit. EZVIZ says both are required, and to get the APN information from your mobile network.

6. Send the settings to the camera by sound

Go somewhere quiet with your phone close to the camera. EZVIZ says to turn your phone’s speaker volume to the maximum and place it next to the camera’s speaker.

7. Listen for two beeps

Listen for two rapid beeps. EZVIZ says that means the camera has recognised the sound information sent from the app, so wait for it to finish connecting.

8. No beeps? Start again

If you can’t hear the beeps, EZVIZ says to reset the camera again and go back to the first step.

4G Details by Model

Model 4G details EZVIZ lists
CB8 Lite 4G A supported Nano SIM and a data plan are needed (per EZVIZ’s global kit page). EU LTE-FDD: B1/B3/B5/B7/B8/B20/B28; EU LTE-TDD: B38/B40/B41 (EZVIZ’s UK page). Also has 2.4GHz Wi-Fi
CB90x Dual 4G Kit A compatible Nano SIM and an active data plan are needed. Also has 2.4GHz Wi-Fi

EZVIZ’s 4G FAQ is written for EZVIZ 4G cameras in general rather than one model, and EZVIZ lists it on the CB90x Dual 4G Kit’s support page. For the APN details, EZVIZ says to ask your mobile network. If you use the camera on Wi-Fi instead, see how to fix an EZVIZ camera that won’t connect to Wi-Fi.

When To Contact Support

If none of these steps fix it, contact EZVIZ through EZVIZ’s support site.