Why won't my flashlight & back camera work on iphone?

My front camera works fine but when i try to flip the camera it won't do anything or it's just a black screen. When i try to use my flashlight it says that it's on but it won't work. I did drop my phone hours before it started doing this, i don't know if that's what caused it or if it's something else. & i've already reset my phone twice & that didn't fix anything. I don't know what to do, please help.

Try these two solutions 1. Go into Settings, tap on General then Accessibility, turn VoiceOver in then back off--If that don't work try this 2. Go to Settings, General, tap on Reset then Reset Settings then Reset Settings again to confirm

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