Why isn't my iPhone 4 turning on or charging?

Nothing has happened to it. It randomly shut off when I wasn't looking and when I picked it up it wouldn't turn on or charge. I Can't try and reboot it with the home and lock buttons because my lock button is broken. How can I fix this, it won't even connect to the computer

Alright, I have two different solutions. The first one is to make sure the connection of the charger through the wall or computer to the phone are together. Look and see if the insulator (the white plastic stuff on the phone charger) is damaged if so try connecting it to a newer charger. If your phone still won't turn on it's probably because it fully shut down somehow and to turn it on again would require the lock button which is broken on your phone, so it's time to start looking for a replacement for it.

  • Wouldn't turning off iPhone while charging shorten battery life? They say the iPhone has a battery life of 400 full charge cycles before it starts its decline. Ok here is the thing… A lot of talk on how to save battery life on the iPhone by charging habits such as turning the phone off while charging, airplane mode while charging, turn off Wi-Fi bluetooth etc… But if the phone charges faster… Wouldn't that increase the amount of full charge/discharge cycles and there for decreasing the life of the battery?
  • Why isn't my iphone turning on? - 1 I have an iphone 4s and i put it in the battery charger for it to charge and i was waiting for the screen to light up, but it didn't and i tried pressing the home button and the lock button but they both arnt working i also tried holding them down and thats not working either. Should i jus give it time to rest?
  • Why isn't my iphone turning on? - 2 Why isn't my iphone turning on? I had my phone in my bag for an hour then found it won't turn on. There are no cracks and the inside screen isn't broken. I tried charging it for an hour but it won't turn on. Nothing got in it and when you call the phone. The other phone can hear ringing but the phone itself doesn't ring
  • Why isn't my iphone turning on? - 3 I have a iphone 4s that i haven't used for about 2 years and was going to sell it. I put it on charge and the battery sign came up so i left it for a while to charge but it was still saying it had no battery. So i left it for a few days and now when i unplug it it just comes up with the apple sign and doesn't turn on. I've tried holding the lock button down whilst plugging in and re starting it but notbing is working, Does it need a new battery or is the phone broken?