Xperia Z3 Compact Phone do not display recovery/bootloader console

I was trying to root my device (Xperia Z3 Compact) as instructed here:

Somewhere in between, a mistake was made and being the novice that I am, I can't seem to undo it. I also have no idea what happened, but if what I understood online is right, I screwed up the bootloader which made the recovery console unavailable.

Here is screenshot on Emma:

enter image description here

Here are the steps I made on the console:

enter image description here

Also, the phone makes some sort of nice sound, not a beep, although I can't identify it and the screen is always black.

I would pretty much appreciate all the help, with the things I've done, I've pretty much voided the warranty (I think) so I hope you guys can help me out.

Solution

We advise users to check supported devices at Developer World.

The D5833 is now added as a supported device, and I hope it will appear as an available service next time you connect your Z3 compact.

Best regards Carl Sony developer support