My Wi-Fi on my iPhone won't work?

I have an iPhone 5c and suddenly about an hour ago my Wi-Fi on only my iPhone (All other devices run the internet perfectly fine) and I've reset both my iPhone and internet multiple times. It will not show up the Wi-Fi at all and when I manually type the Wi-Fi username and password in it just says "No Wi-Fi found" please help.

Switching from Verizon Unlimited Data Plan to Verizon Max?

I'm considering upgrading to an iPhone 6 Plus. I'm currently a Verizon customer with an unlimited data plan (UDP), and I know that there's a promotion going on where UDP customers can get 6GB of data for $30.

My question is whether or not I will be able to switch the data plans online, or if it is something that needs to be done over the phone or in person. If I were to preorder the iPhone online on launch night, would I be able to select the Verizon Max plan on either the Apple pre-order site or the Verizon pre-order site?

Also, I don't really care TOO much about the Unlimited Data; on average, I use about 5-6GB a month, so I'm not taking full advantage of it anyway, and I have no real plans to use more than that in the future.

My message won't send as an iMessage?

So my friend just got an iPhone today. I've had one for a while. My phone refuses to send my messages to her as an iMessage. For anyone else that has an iphone, my messages send to them as an iMessage, except her. When she sends me messages, the come in as an iMessage, but mine send back as a text message. We both have iphone 5ses. I have tried everything. I have changed her phone in my contacts as an iPhone. I've tried deleting her messages, and even deleting her contact and put it back in. What can I do?

How to erase your iPhone call log history?

How to erase your iPhone call log history?

Added (1). I need to completely erase my iPhone call history and messages so you won't even be able to see it when you attach it to a computer.

Added (2). I know how to clear it on my phone but when you attach it to a computer you could still see it, right?