Hey HamidoOoOo,
Thanks for using Apple Support Communities.
Whe you turn on the iPhone it sould still allow you to swipe over to put in a passcode instead of using Touch ID.
If that doesnt work follow this article.
iOS: Not responding or does not turn on
http://support.apple.com/kb/ts3281
If the device remains unresponsive or does not turn on (or power on), reset your device.
If the device doesn't appear in iTunes, try to force the device into recovery mode, and then restore it.
Turn your iOS device off and on (restart) and reset
http://support.apple.com/kb/ht1430
To reset, press and hold both the Sleep/Wake and Home buttons for at least 10 seconds, until you see the Apple logo.
If you can't update or restore your iOS device
http://support.apple.com/kb/ht1808
Have a nice day,
Mario