Lg v30 can't turn on only logo on screen

[maziak1980]

hi guys
I'm fresh owner of lg v30 before only Samsung devices. I tried do root on my lg v30 but now I have only LG logo (LG V30think) or if I try do hard reset logo changed to LG logo. I tried hard reset, soft reset etc nothing work. When I connect to computer I hear connecting noise but I can't see my devices in my computer. I tried connect to LG Bridge but program can't see my phone. Any idea what I can to do to back my phone to life