If you're encountering difficulties charging your EZVIZ camera, here are some steps you can take to troubleshoot the issue:

1. Check the power source: Make sure the power outlet you're using is working properly. You can also try plugging the camera into a different outlet.

2. Check the power cable: Make sure the power cable is not damaged or frayed. You may also try using a different charging cable to see if that solves the problem.

3. Reset the camera: If there is still remaining power in the camera, you can try resetting the camera by pressing and holding the reset button for about 10 seconds. This will typically restore the camera to its default settings and may help resolve any charging issues.

Please follow the steps below:

1. Press and hold the RESET button on your camera for about 5-10 seconds to reset it. This will allow you to start the process of reconnecting the device to the Wi-Fi.

2. Make sure your EZVIZ device is Wi-Fi configuration mode.

3. Open the EZVIZ mobile app on your smartphone.

4. From the Home page of the app, tap the 3-dot icon next to the name of your camera to enter the Device Settings page. 

5. Tap the "Wi-Fi" or "Network Settings>Wi-Fi".

6. Follow the prompts and instructions in the EZVIZ mobile app to reconfigure your device to the network.

If your camera goes offline frequently, below are some troubleshooting steps to resolve the issue for you:

Step 1: Ensure both the firmware and EZVIZ app are running on the latest version.

Step 2: Ensure that your Wi-Fi network signal is good. You can check the signal by connecting your phone to the same WiFi your camera connects to, entering More page > Settings > Device Network Tools > Check WiFi signal.

Step 3: If not good, you can try to move the camera closer to your router, avoid obstacles and interference such as wall, elevator, microwave, washing machines, and Bluetooth devices. 

Step 4: If your WiFi router has an adjustable antenna, try pointing it in various directions.

Step 5: Try to change the Wi-Fi channel to a less crowded one.

Step 6: If possible, disconnect some devices you seldom use from your router.

Step 7: If your camera supports Ethernet cable, you can also try to connect it using a cable.

Step 8: If you have two EZVIZ devices and the other one is working fine, you can also try to switch the locations to further determine the issue.