Connecting IPhone 7plus to lavalier mic?

I'm using a 3.5mm lavalier microphone and have it connected to the lightning adapter that came with the phone but it isn't working! When I record it uses the audio from the phone mic itself instead of the external microphone. I've also gotten an error message that says "this accessory is not supported by this iPhone." Do I need another adapter? What could be the problem?

How do i gain my mom's trust back and how do i persaude her to take off parental controls?

2 months ago I was hanging out with my friends and decided to throw a ball on the highway ( I didn't think before doing this) but I missed a car and he turned into my neighborhood and I had to show him where I lived *long story short later on she went through my iphone later on that night and she caught me talking to a girl (inappropriately) and I got in trouble so now I have a samsung with dumb parental controls

Can I control my IPhone on another IPhone or device?

I've got an old IPhone 6S that is smashed and the touch screen is very dodgy, I've got some important documents on an app but I can't get into the app because when I try to type the password, the touch screen is broken in parts of the screen so I can't type the password, is there a way around this without paying for a screen replacement?

If you buy someone's used iPhone

If you buy someone else's used iPhone, does the iPhone know that someone else once owned it and kinda sync your itunes account to theirs? Or anything like that haha?

How do I activate my phone on consumer cellular?

I recently have switched carriers from metro pcs to consumer cellular because I need to be on the at&t network rather than the tmobile network, but I have run into problems while trying to activate my new sim card. When I try using the sim card from consumer cell it says that the sim card is not supported. I have talked to reps from both consumer cell and metro, and metro says that the phone is unlocked and shouldnt still be tied to them, and consumer cell says that their sim is activated and should work fine. The phone I have (Iphone 7 plus) I bought from best buy, so it should not be carrier locked, and should work on any network, since I bought it new, so the imei is clean. I have also tried resetting it entirely through itunes, and still to no avail. What should I do? I was thinking about trying another sim to see if that might work.