My LG phone died after..

Hello everyone, recently i had a problem with my LG D320TR(pink screen with DBI error or something). I switched to my download mode and started installing .kdz folder. But at Some point it said ASSERTED with red/big text and closed. Flash tool said close the phone and Try again. I did so but now i can't open the phone!

What did i do wrong? Is it completely gone?

Thanks.

(Disclaimer: Sorry if I can't help you, but I am not interested in flashing so maybe what I am saying is completely useless but I'll try my best)

Question:

- Did you had your phone rooted?

- If you did, did you flash a ROM?

- If you flashed a ROM, then, maybe you installed the ROM wrongly and bricked your device by interrupting the install.

- If you haven't rooted the phone
(Did you did some crazy things in recovery?)

- If you haven't flashed but have root;
Did you did something with your root access?