Unable to copy photos from iPhone to laptop. It says device is unreachable after a short time

I have an iPhone SE and I've got Windows 10 on my laptop. Whenever I try to copy photos from my phone to laptop, after a about 5 seconds an error message comes up saying "device is unreachable." I can't figure out whether this is a problem with my data cable or my laptop OR my laptop's USB port. And also I haven't updated my phone to the new version of ios, could that by any chance be a reason for this problem?

What camera should I buy?

For as long as I've been taking photos, I have used my iPhone 5c. Not the greatest camera, but gets the job done. I'm now at the point where I would like to take photography up as a hobby. The camera would be used quite a bit for sports photography (basketball, athletics, etc), any thoughts?

Added (1). Anything under 1000 is ballpark

IPhone won't play 2160p (4k)?

So when I try to play a video online thats in 2610p 4k quality, my iphone 7 is unable to play it and it just shows loading endlessly, why is that? I didn't pay a thousand dollars for a device that can't even play 4k videos online:/

Am i entitled to a refund?

I just bought a boost mobile phone yesterday this phone and the iphone 6 was the same price. I wanted the iphone but the associate assured me that this phone was better so i took it home and i hated it the quality is terrible i took it back within 24 hours. But she said they don't do refunds. The receipt doesn't say all sales are final nor did the woman whi sold me a phone i didn't want. Also i pay my phone bill in advance and she added device protection without my permission so now my service is off i'm inconvinced until i can make my way back uo to the store.

My phone fell into the toilet lol?

The screen has a large water mark and the speakers don't work, but I can talk and listen to music via headphones. Other than that I don't think anything else is broken. I still have a full battery and I didn't put the charger in. I had put it in rice for a day. So is it safe to use it now? Its an iphone SE if it matters

I can't connect to my internet on my original PC, why?

I'm asking this question on my IPhone by the way. I had to reboot my computer earlier because it was running slow and now I can't connect to my internet. When I put my computer on there's a drop down menu of internet connections to choose from and I choose mine and then it works, but nothing is showing so therefore I can't get on the internet. Can someone help me out and give me serious answers? I'm really annoyed right now.

Added (1). Never mind. I got it to work now. Lol. Don't know how but I did.

Why does my clear phone case turn yellow?

Why does my clear iPhone case become yellow and more brown over a couple of months? I thought of buying a new one for next fall. If I leave my new iPhone case un used in a normal environment will the phone case become yellow or just stay the same?