I was reading a book on my phone earlier. I stuck my phone in my pocket because I had to go do other things. After about a half hour I pulled my phone out when I got home and my phone was off. I tried to turn it on and nothing happened. I took out and replaced the battery but it still wouldn't turn on. Then I plugged in my phone thinking it may just be dead, but the charging light doesn't come on and it still doesn't turn on. How can I fix the phone?