In this guide we’ll show you how to boot the Galaxy S8 into recovery mode or download mode. For those that don’t know, these are two very important modes for troubleshooting or fixing problems.

Boot in Download Mode: Charge the phone for at least 30 minutes. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.

Doing so will force the phone to restart to normal mode. If the phone remains unresponsive though, ... Problem #3: Galaxy Note 5 won’t boot to normal mode and is stuck in Download mode.