Flashlight not on iphone 8 Plus 16.6.1

"Flashlight not on iphone 8 Plus 16.6.1: @TheLittles: This is what happens, not much :-)"

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Thank you for the screenshot.

Troubleshooting Missing Builtin Apps:

A. Reset the Home Screen Layout:

If a widget or app has gone mossing somehow, then you need to reset the Home Screen Layout...

Go Here: Move and organize apps on iPhone - Apple Support

You'd have to add back all the widgets that you can recall being back on there.

Scroll to: Reset the Home Screen and Apps to their Original Layout

1. Go to: Settings
2. Tap: General
3. Tap: Reset
4. Tap: Reset Home Screen Layout
5. Then... Add the apps back

B. Try This - Disable then Enable Cameara:

1. Go to: Settings
2. Tap: Screen Time
3. Tap: Content & Privacy Restrictions
4. Enter: Keycode
5. Tap: Allowed Apps
6. Tap: Camera (So it is Green-Colored)

C. Restart iPhone:

Go Here: Restart your iPhone - Apple Support

"Flashlight not on iphone 8 Plus 16.6.1: I do not see the flashlight icon when I swipe up from the bottom of the screen. However, when I go to Control Center, Flashlight is there, but I can't figure out how to make it show on the screen above"

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Thank you for the screenshot.

Getting a Lock Screen to Show as Set:

Tap "System Services":

So, what happens when you tap System Services? Does it then show up?

Screenshot:

According to your screenshot, you haven't unlocked your iPhone. What happens when you open control center after unlocking your phone?