Nothing Work only ClockworkMod

I have rooted and installed ClockworkMod Touch Version and Installed some Roms but no Rom really was Usefull for me, than i wanted to Install the V30A Beta Version from Stock and Installed a Second Bootloader Called WKParks or Something (it starts before ClockWorkMod) and then the V30A Prerooted Version was running but very stocking and i must wait very long for every Step and the Smartphones and Accu goes very hot.

So i made a reset on Phone and Factory Reset in ClockworkMod, after that the Phone don't Starts only Logo and i only have Access to the ClockWorkMod and when i Format Data / System / Chache and everything and install other roms, nothing works i only loads again into Bootloader / Clockwork.

I Also have tested to made a reset over the LG Software with entering the IMEI but i can't connect the phone. I Have tried to install many usb drivers, to start with Vol Up (without Battery) and connect to USB, with Vol Down, only Connect and everythign, but nothing works.

I Also find no Driver for OMAP and LG Cosmo for Windows 8

What can i do? Please help me!

The last thing i don't tried is the TWRP Recovery because i don't find it to Download on the Website from www.teamw.in is no Version vor P920. I Really going Crazy....