Bricked S5?

[bintob]

Hi guys I'm kind of freaking out atm as I'm scared I have ruined my phone permanently. I followed this tutorial forums.androidcentral.com/samsung-galaxy-s5/489071-tutorial-downgrade-samsung-galaxy-s5-5-0-4-4-kitkat.html to downgrade from lollipop but it did not seem to work and now my phone is stuck on the samsung screen with the blue LED flashing. I followed other tutorials to try and fix this but they aren't working. Would appreciate any help!! Very desperate