I have at&t LG Flex, rooted and than updated to kitkat, surprised was when it updated to Kikat and root was retained, I used all applications that require supersu and work like charm.
Follow this, If you did not upgraded root it with ioroot and don't unroot it, take OTA update and you will keep the root.
If you upgraded, downgrade it via lgflashtool method, root with ioroot and update ota and you will keep the root..Good Luck
Link to downgrade:
http://xdaforums.com/showthread.php?t=2644083
Follow this, If you did not upgraded root it with ioroot and don't unroot it, take OTA update and you will keep the root.
If you upgraded, downgrade it via lgflashtool method, root with ioroot and update ota and you will keep the root..Good Luck
Link to downgrade:
http://xdaforums.com/showthread.php?t=2644083
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