Chosen Solution
My iPhone won’t turn on at all connected to a computer or wall outlet. I have tried leaving it charging but it still won’t work. I have also tried holding the power button and home button, holding the power and volume down button but it won’t turn on. Another thing is that my iTunes on my computer won’t recognize it and my computer doesn’t recognize it. I have not damaged it physically or internally too.
It could be a completely dead battery. It would impede the device from booting or being recognized by a computer and would not take a charge regardless of how long it is left on the charger. However, batteries usually degrade over time so you would have noticed reduced capacity. The only way to know for sure is to try a new battery, preferably one from a reputable supplier. If the battery doesn’t solve the problem, then you probably have a logic board issue.
