The yellowish or bluish tint in photos taken with the flashlight on the POCO C61 is due to slight variations in the color temperature of the flashlight. The flashlight on this device has a color temperature within the range of 5500 ± 250K. This range allows for some variability, meaning the actual color temperature can vary by up to 500K. Such variations can cause subtle color shifts in photos, leading to a yellowish or bluish hue.
This is a normal occurrence and is a result of the inherent properties of the flashlight’s color temperature range. For more consistent color reproduction, consider using additional lighting sources to balance the flashlight's color temperature.