How to set the dark photo of Xiaomi?

Don't use automatic white balance, adjust according to the scene environment. In addition, when touching the screen to focus, the focal length will be adjusted at the top and the exposure intensity will be adjusted at the bottom. For scenes that are too dark, you can try to adjust the exposure manually. There are ISO options in the options. Choose the ISO value as small as possible. If it is too dark, try to increase it, but there will be a lot of noise. Just make more adjustments and shoot again when you think it's appropriate. By the way, you can generally choose auto, macro or manual macro as the focusing option, while ISO generally chooses image quality priority or 100, with auto focus off and touch screen focusing. If you try more, you will take good photos. My electric meter is 2.3.5 V.