So I rooted my LG G2 (D802, 4.4.2, Stock, used ioroot) yesterday.
I intend(ed) to flash the Optimus G3 Rom, in the start post they recommended to flash cmw/twrp via "Simple Tool 3.2" (http://forum.xda-developers.com/show....php?t=2633941). After doing so (I used the automated version, not the manual one) I got STUCK ON THE BOOTSCREEN. There is a notification popping up for a few seconds in the left upper corner which lists several errors occurring:
BOOT CERTIFICATION VERIFY
SECURE BOOTING ERROR;
CAUSE: BOOTCERTIFICATION VERIFY
along with the following numbers listed from top to bottom: 710, 760, 810, 860, 910, 960 (I just noticed, the numbers can vary, but always follow the same pattern...)
after this message, the screen fades to black, I think it it is still running though, since it takes more than 10 seconds to reboot the phone by pressing the power button. I still have access to the button down/power button combo which leads to a factory reset setting, but it doesnt do anything for me since I still get stuck at the lg boot screen.
Atm I dont what to do! Enter download mode and flash something? I'm seriously kind lost here. So, thank you for your help!