If your screen is stuck on the Apple logo for a long time, or it prompts you to connect to your computer screen or simply tells you it's in recovery mode, then all you need to do is follow the ...

But sometimes things can go wrong, and if your iPhone is unresponsive - and all other troubleshooting steps have not solved the problem - then you might need to enter recovery mode. To be clear ...

6. Keep holding Volume Down (or Home) until iTunes on your computer says "iTunes has detected an iPhone in recovery mode. You must restore this iPhone before it can be used with iTunes." ...