How to Force Restart an iPhone 4
If your iPhone 4 has become unresponsive or frozen, this guide details a straightforward procedure to reboot it without needing any specialized equipment.
Step 1 | How to Force Restart an iPhone 4
Apply continuous pressure to the Home button.
Simultaneously depress the Sleep/Wake button while maintaining pressure on the Home button.
Simultaneously depress the Sleep/Wake button while maintaining pressure on the Home button.
Step 2
Maintain pressure on both buttons for roughly ten seconds, allowing the Apple logo to display.