X, someone sent a message. How can the camera light up?

You can find it in the settings of your phone.

If you have an Android Huawei mobile phone and then let WeChat message light up the camera, you can set it directly. If you have an Apple phone, please open the "Settings" application on the main screen of the Apple phone, find the "General" column in the settings list, click Open, then find the "Accessibility" column in the general list, click Enter, and then find the "LED flashing to remind you" in the accessibility list.

Next, you can call yourself or send a short message to check whether the LED on the back of the phone will flash. Of course, if you have a lot of phone calls and text messages, turning on the LED flashing prompt will definitely consume the battery power of your mobile phone.