I went to sleep with my iPhone charging last night and woke up with it completely unresponsive. The screen is black without even the battery symbol to indicate it is dead. I've tried a factory reset but my home button hasn't worked for the pat 6 month due to water damage. It also wont even connect to my computer. I've tryed Charging it, turning it on, factory reset, multiple different cords to plug my phone into, and plugging into my computer. What do I do?