How can I update my phone?

I have an iPhone 7 and I know it should be updated to IOS 11 or whatever but for a while I didn't have Wi-Fi to keep my phone updated and when I finally could update it it only updated it to IOS 10.3.3 and it just tells me my phone is up to date even though I know it's not… What can I do?

Change font on iphone?

I just want to change the font of my keyboard and texts to franklin gothic. All the apps i see have those really crazy fonts, but thats not what i'm looking for. I'm looking more for something that lets you choose from a list of the basic fonts you would find on windows, and lets me text and type with that font.

Internet connection stops working on laptop and phone?

For awhile now I've noticed my internet stops working randomly. It happens when I'm connected to my laptop or iPhone. I don't think it's a dropped wireless signal because I still see I'm connected to my modem but there's no internet. What usually fixes the problem is to turn on airplane mode on and off so it reconnects. However, recently I've needed to physically disconnect and reconnect my modem to solve the problem. I'd also like to note that this doesn't really happen on a wired connection, I play online games on my PS4 using a wired connection and have never really been kicked out. I'm not completely clueless when it comes to these issues but I'm not really sure what I should do to fix it. I've messed around with Wi-Fi channels on my modem page and researched the issue but I didn't find anything. I've also contemplated buying a router but I'm not sure if it'll help.
By the way my ISP is AT&T (ADSL) if it matters. I'd really appreciate the help, thanks!

How much do certain iPhones sell for?

About how much is iPhone 6,6s,6 Plus and 6s plus worth when selling them? I'm trying to think of prices to sell the phones I get for… Please tell me each phones worth as of now, November 2017.

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