[Q] LG G2[d802] bricked. No download, recovery mode. No fastboot topic

Need urgent help. Accidentally bricked my lg g2 and cannot do anything.. Have searched for help almost 6 hours straight.. The main problem is that i can't enter download mode and recovery mode. When booting phone only lg g2 logo shows up with security error. Computer doesn't recognize phone also, so i cant use adb sideload and so on. My lg was rooted but i didnt have any custom recovery . Please help.