Unhappy Any suggestion for my LG G2 ?

My LG G2 ISAI is sticking on this situation:

1- Rooted and got OTA

2- Download mode with 5 dot and pc no connection dectected

3- No recovery mode

4- No connection from PC

and i follow these step (http://forum.xda-developers.com/show....php?t=2582142) but nothing detected as qhsusb_bulk in device manager

someone can give a hand to fix this things ?