On the POCO C71, if you find that the ambient light sensing (automatic brightness adjustment) function does not work properly after double-pressing the Power button to quickly launch the camera, this is normal.
For your reference, here are more details of the issue:
1. This happens because when the Camera app is running in the background, it continues to occupy certain system resources, including those related to light sensing. As a result, the auto-brightness function will be affected and fail to adjust the screen brightness based on ambient lighting;
2. To restore normal operation of the auto-brightness feature, it is recommended to close the Camera app from the background after use. Alternatively, you can manually adjust the screen brightness if needed.