Chosen Solution

My iphone 4 cannot on …after I try many times for hard reboot but it doesn’t works .. I had try click the power button and home button at the same time but not working …the screen was black and the apple logo is not coming out …

Connect iPhone to power, with Wall Charger and USB cable. Let it charge for 10 minutes. It may turn ON itself. If still not, keep connected to charger, and Reset, hold both home and power buttons for at least 20 seconds until the iPhone begins to respond.