How to get my iPhone 6 to allow microphone to apps?

Okay, so let's say I want to record a vine. I press the button, and it says that I need to go to settings, privacy, microphone, and allow vine to access it. So I do that. Problem is, when I go to microphone, it says that apps that request access to microphone will appear here, and nothing else. What's the problem? Am I doing anything wrong?

How to delete voicemail recording?

I want to delete my voicemail recording (where I say my name) and set it back to the default but it will only allow me to record a new one or keep the old one.
I use an iPhone 5 with Telstra.

How to restore my iphone 5c to factory settings?

A few months ago my daughter lost her iPhone 5c in the woods. We had it deactivated after that. Just a few days ago, we found it again - someone had found it right away and it was safe and unharmed. We have been trying to reactivate it, but it keeps asking for my daughter's Apple ID and password. She just changed them, but it doesn't want the current ID/password, it wants the old one that she doesn't remember. Is there a way we can reset the phone to its factory settings and wipe out all the old information? I notice there's a tiny pinhole on the side of the phone - can we do it by depressing that? I'd hate to throw away a $300 phone, so we're trying everything we can.

Best way to get IPhone power button fixed?

I have an iPhone 5 witch is out of warranty.A few months ago my power button started acting up. I have to press it 5 to 6 times for it to work and I have to press it really hard. I want to get this fixed. What is the best way? I have to Apple stores in my area but I have third party cell phone repair shops.

How to bypass acyivation lock?

I bought a secondhand iphone and when I got it I found out it was activation locked. I have tried to contact the person who sold it to me but they will not respond and have blocked me on Facebook. Is there anything I can do?