If your phone won’t turn on, then it could be the result of numerous problems. If you don’t know exactly why your phone has gone brain dead, you should try some of the most common solutions.
Your phone's software might have frozen. To restart most phones, you just have to hold down the “on” button for about five seconds. If that doesn’t work, try holding the “off” button. These two tricks will reboot many cell phone models.
No response from the reboot trick? When was the last time that you actually charged the phone’s battery? Maybe the battery is totally dead and you can’t get any response from it. Stop feeling bashful about your mistake. Just plug the phone in, and see what happens. If it’s a drained battery, then it should start responding soon. Just wait for the battery to fully charge before you start making calls.
If charging doesn’t help, your battery could be dead. Unless you’re an electrical engineer, you probably can’t do this at home. You’ll need to take your phone to a store to try other batteries. If a replacement gets the phone to work, then you just need a new battery. That’s a pretty cheap fix for a broken phone.
If none of these fixes work, it’s time to get a new one.