IPhone stuck on apple logo

Okay so I just replaced my battery, and I turned on my phone and it stays on the apple logo. Any suggestions on what I should do?

My Internet works fine on my computer but does not work on my iPhone (4s)?

Now I've had my iPhone for over a year now and has always been able to connect to Wi-Fi in my home. Nothing has changed at all and I have not physically damaged my phone. When I go into settings on my iPhone, it does not even show my network that I should be automatically connected to at all. On my computer the internet works just fine. Is there any way I can fix this issue?

Added (1). I have already tried turning my phone on and off, turning on airplane mode on and off. I have also tried to reset network settings

My camera on my iphone 4 has stopped working?

When trying to open my rear camera it takes a good minute or so to open and sometimes gets stuck on the shutter screen, then when trying to switch to my front facing one, it either freezes or just completely shuts the app down. I have restored my phone, closed all my open apps and then turned off for while and still not working, apple are useless, and its an 8 day wait to have it looked at, does any clever apple people have any suggestions?

What's wrong with FACEBOOK app for iPhone?

I dnt knw if what's going on w/ the FB app for iPhone that crashes all the time. What will I do w/ this?
I keep deleting & installing every time. Can someone please help me w/ this? Is there any FB app that is available for iPhone?

Can I use BoostMobile for iPhone 4s?

My iPhone is sprint but I don't want sprint's original plans because it's too expensive. I only call and I don't want text and data. I don't mind limited minutes.

What is the best way to do this? Does Boostmobile work?

Emoji finger pointed towards 'ok' symbols?

Okay so… What exactly does a text mean that is of a finger, pointing to the right at a hand forming the 'OK' symbol mean? XD I know it's supposed to be something dirty… But what? I doubt it'll load on here but it's supposed to be this. ->

IPhone 4 cracked with life proof case on?

Okay so I don't know when it cracked I just noticed today when I opened it and showed it to my friend. The back glass of the iPhone cracked and had scratches in the bottom.
Can I get a refund somehow? I don't have the receipt I got it for christmas I'm just really pissed it broke in the case

Why won't my iphone 5 work with my PC?

I just got an iphone 5 today and when I plug it into my laptop to sync it, it doesn't even charge or pull up on my computer.nothing happens at all. I've tried two different cables and neither of them work. It works fine with the wall charger so its not the cord. How can I get it to sync?