Cannot turn on at all!!!

ahusni96

New member
Mar 3, 2017
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Phone: Sony Xperia Z (CC603)
I was just trying to root my phone when it suddenly turned off and red light was shown on the led light.
Have tried/issues:
1- Force power off, pressing the power button and volume button together
2- Trying to flash the phone, cannot be done because I can't turn the phone off
3- The phone does not respond to any button presses
4- plugging the phone to the computer, the computer does not detect the phone
5- charging also does nothing
6- the bootloader was not unlocked, not a custom rom issue
7- the phone won't start completely, it cannot even start the logo screen

My question:
What is the cause?
Can it be repaired & how?
Is it hard-bricked?