Yezz Z51 Manuel page 100

Anti-flicker: To change use the M1 and M3 keys.
Delay timer: To enable or disable use the M1 and M3 keys.
Image settings:
Size image: To change use the M1 and M3 keys.
Image quality: To adjust use the M1 and M3 keys.
White balance:
Choose a color scheme according to the ambient.
Scene settings:
Allow you to select the night mode (extra light) or let the
phone to choose the best mode.
Storage:
Let you choose where to store the photos taken.
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