Siri is not working on iPhone 6 Plus iOS 9.3?

Siri doesn't seem to hear any of my requests. I just updated to iOS 9.3, but the problem is still there (since I got the phone w/ iOS 9.1). Siri is enabled, and my microphone works perfectly when I make calls.
Siri does work when I have my phone connected to a speaker (without a mic) via Bluetooth, so this is definitely a software issue. Again, Siri did now work on iOS 9.1, 9.2, or 9.3. Any solutions?

If an iPhone was bought in another country?

And you bring it to another country to use it but you aren't able to connect it to a mobile service (for data and calls) is it the chip that needs to be changed or the phone?

How to access the iPhone I found?

The snow just melted where I live so I went for a hike and I found an iPhone 5 that looks like it has been sitting in nature for a while, and has a message that says it hasn't been backed up for 37 weeks (9 months). I assume the previous owner has moved on and gotten a new phone, so I would like to use it. The problem is it requires a passcode and even when I tried connecting it to a computer and restoring it, it said it required a passcode. I'm stuck and I could use whatever help you guys can give.

Will apple replace or fix my iPhone 6s?

I bought my phone 4 months ago and i accidentally dropped my phone. My phone system and everything works fine but, the camera has 2 cracks in it and it effects the camera quality a bit.
So basically;
- iPhone 6s system working fine
- No cracks on the front screen
- Camera has 2 small cracks and its effecting the camera quality.

So, can i get it replaced or fixed for free because it is still under warranty?

Should I spend my savings on a laptop?

I have some bond money that was given to me as a baby. IIm in my early twenties now and I don't think they ve even reached the full amount. I feel a little guilty buying a MacBook with part of them because it's only a few grand. However, I really need a computer. I've only been using my iPhone for about over a year now. I can't even back it up and I don't currently have a job. I like knowing that money s there for back up or I guess I always imagined myself using it for something greater. I don't know I like to hear your opinions before I make a big decision.

How to access my desktop from my iPhone?

I downloaded the app RD Client for my iPhone to try and connect to my laptop's desktop, but I can't seem to get it to work. I looked up tutorial videos and followed what they said but still no luck. When I turn on remote access on my computer it asks to allow remote assistance. Is this the right thing or am I doing it completely wrong?

How to unlock iPhone from update if Apple ID is disabled?

My mom installed an update on her iPhone 4 and now it's saying to complete the update you must put in Apple ID and password. Yet, the Apple ID that the phone was originally set up with is disabled. So is there any way to delete the update? Or to use a different Apple ID? Or should we call the store? We re kind of in a rut because she can't afford to get a whole new phone