We appreciate your support for Xiaomi products. When recording in the dark or observing the screen preview effect, the REDMI 15C 5G's image quality is not clear enough and has noise.
If the video quality is not clear and noisy when recording or viewing the screen preview on the REDMI 15C 5G, please refer to the following details:
If you need to record a video in a dimly lit environment, it is recommended that you use auxiliary lighting to improve video quality.
It is recommended that you use the REDMI 15C 5G to record videos in a bright environment for better results.
This is a normal phenomenon and not a product defect. Please feel free to use it.