Originally Posted by matt190191
Welcome to Android forums!
No worries we've all bricked our devices at some point its all part of the learning process.
First off what did you flash to try and get it back to stock? Can you access the recovery menu?
Press power & Home & Volume down at the same time and wait for it to reboot. If you can access recovery you haven't hard bricked your device. And you should be fine just flashing a stock ROM via odin.
Its hard bricked, it will not power on or anything. If you plug it into pc you hear that blip noise but thats it.