Please follow the steps below:

Step 1: Sign in to your EZVIZ account and tap the profile icon in the top left corner. 

Step 2: From the menu, choose Settings.

Step 3: Tap General Settings.

Step 4: Tap Dark Mode.

Step 5: Within the Dark Mode settings, select the Dark Mode option. Afterward, simply exit the page, and your preferences will be saved automatically. 

Note: Enabling Dark Mode in the EZVIZ app will only affect the app's appearance. If you select "Auto", the app will adapt to your phone's system-wide settings.

Please follow the steps below:

Step 1: From the Library Page, tap the second button on the top right to enter the Library Settings page.

Step 2: Tap Push Notification Settings. 

Step 3: Then tap Notification Sound and select the tone you would like to set for each type of event. 

Please follow the steps below:

Step 1: Log in to your EZVIZ account, tap the profile icon on the top left. 

Step 2: Enter My Album. 

Step 3: Tap Edit on the top right corner. 

Step 4: Then select the files you would like to save and tap Save.

Alternatively, when you play each file, you would also be able to see the save icon. 

Please follow the steps below:

1. From the Home Page, tap the plus icon on the top right.

2. Tap Create New Space.

3. At the bottom, tap Create New Space again.

4. Custom space name or select one existing name.

5. Select the devices you would like to add in the space and click Done to complete the settings.

Note: you can edit the space at any time by tapping the Edit button beside the space name.

Involved model: BM1/BC1/HB8/BC1C, etc.

Kindly note the actual battery life will vary depending on environmental factors, network stability, and the frequency of camera activities. 

Thus, to optimize the battery life, we suggest you check the following:

1. Low temperature. As the battery inside is a lithium-ion battery, if the temperature is low, the charging would be slowed, so you may need to charge more often at temperatures below 0°C. 

2. Weak Wi-Fi connection. Please ensure the network connection is good and there is no barrier or radio interference between your camera and your router causing an unstable network. You may open the EZVIZ mobile app > enter camera Settings > Network Settings and tap Wi-Fi Signal Strength to test the signal.

3. Meanwhile, you can try the below settings to reduce battery drain:

- enable Power Saving or Super Power Saving mode (only active live view can wake up the camera) in camera Settings > Working Mode or Battery.

- decrease detection sensitivity in camera Settings > Intelligent Detection.

- draw detection areas in camera Settings > Intelligent Detection.

Please follow the steps below:

Step 1: From the Devices Page, tap the plus icon on the top right.

Step 2: Tap Create New Space. 

Step 3: Tap the Edit button beside the space name. 

Step 4: Customize another space name or select an existing name. If you customize a new name, please tap Save to proceed further. 

Step 5: Tap Done to save the settings.

Please follow the steps below:

Step 1: On the Devices page, scroll down to the bottom and tap the Edit Devices button.

Step 2: Then you can select the view and sort you would like to set. 

Note: If you would like to change the camera order, you can also tap Rearrange to sort the devices you have again. 

Please note that this message usually indicates that the device has reached its maximum connection at the same time. Please check if you have shared your account or device with your family or friends. If so, please advise them to log out of the account. If not, please turn off the device and turn it on again, this should solve the problem.

For personalized guidance on dual-lens cameras, such as the H9c, feel free to contact the EZVIZ support team for further assistance.

Please follow the steps below:

Step 1: Log in to your EZVIZ account, tap the Account button in the lower right corner.

Step 2: Tap Settings.

Step 3: Tap General Settings.

Step 4: Tap Device Auto Upgrade.  

Step 5: Use the toggle button to enable or disable the Device Auto Upgrade and choose a convenient time period.

Note: The interface of the application may be different depending on the version update

Please follow the steps below:

Step 1: From the Library Page, tap the second icon on the top right side to enter the Library Settings Page.

Step 2: Tap Push Notification Settings.

Step 3: Then tap Critical Alerts.

Step 4: Disable Critical Alerts to complete the settings.