Originally Posted by ananasic View Post
this backup Korean firmware for twrp, first make all wipe, then restore the system folder, and then the boot folder. Now dear friends left to adjust the kernel to work the camera and memory. Who can rabotat kernel we are waiting for your help.

Downloads: https://yadi.sk/d/3-3klCFfRA2Fa
Did you try flashing a stock JB kernel afterwords for the E970?

ATT LG Optimus G (TwistedKat 2.4)
Asus Nexus 7 (Stock 4.4.2)