lxp's drivers should work with power kernel v46 and above (I have not tested pk49 but in theory it may work). You really don't need neopwn's outdated proprietary kernel version to use its injection capabilities.

Not too sure what you meant by ED image.

Are you using your eMMC space to create the image or are you using your microSD{HC} card's space to create the image. If you are using microSD{HC} card to create the image and if your microSD{HC} card is rated class 10 you will need a kernel patch to make the card work. Apparently its some issue with the way the kernel (< v47 iinm) handles writing which is probably too slow and the write queues are all choked up.