How to start up an iPhone 4s after a couple years?

I have an iPhone 4s that I haven't used in a couple years and I'm trying to turn it on, but it's completely dead and still charging. How can I turn it on without using the power button, because it is jammed? And i don't think I remember the passcode to it either, is there a way I can factory reset it once it is turned on? And also, is there a way for me to replace the sim card with my current one?

How to make public Wi-Fi stronger for iphone?

How to make public Wi-Fi stronger for iphone?

Added (1). when we go out of of town the place we stay has a better signal than my Wi-Fi, but its not so great- I need it to work for emergency purposes at home and its quite spotty- is there a way to get a booster or antenna with out connecting to a router to make it stronger?

I wanr to sell my broken iPhone but?

I want to sell my broken 5 month old iPhone but I'm afraid my parents won't let me.
I only got it on february and it has a few cracks at the side.
Even if I could no one would buy it.
Give me tips on how to persuade my parents to selling it and websites to sell a broken iPhone

Lost my old iPhone a few days ago and got my replacement today. I need help restoring my backups. URGENT?

So, funny story, i lost my old iPhone 6s Plus in the ocean while swimming in Mexico. Ha. Since i don't have that phone any longer, i'm having no luck in activating my replacement iPhone (same type as my original) Let me explain: iCloud backup needs a verification code sent to my phone number. Don't have my old phone and can't change the number. ITunes backup requires me to sign into iTunes on my laptop, but i need a verification code for that, too. Activating as a new iPhone still requires Apple ID and a verification code. See my problem? I'm extremely frustrated and i'm going into Boston soon (don't know what day exactly because i can't contact anyone) and i need to be able to let my parents know where i'm and all that jazz. So, you can see why i need a solution As soon as possible.

Does an Iphone 6s work for taking youtube videos?

In memory of Chester Benningham and Linkin Park I was going to make a couple tribute cover videos but I don't have a decent camera other than the one on my Iphone 6s (128g so it has space)

Will it work just for some vocals and maybe guitar/piano? Can I upload videos on my phone to youtube directly or do I have to have a computer as a median? (I have one but its a Chromebook)