XDA Member EdwinMoq found out that the LG Optimus L9 uses the same signature keys as the LG G3, making it now possible to install a custom rom without unlocking the bootloader. The phone does need to be rooted for this to work, but the procedure is otherwise quite straight forward.
from xda-developers » xda-developers | Install Custom ROMs on LG Optimus L9 With Locked Bootloader http://ift.tt/1HPP2WN
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