You'll need to reinstall a version a cwm or twrp made for the kk bootloader via odin first. The older versions are no longer compatible.

Sent from my leanKernel 2.5.1 powered stock 4.4.2 (NE6) SM-N900T
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Devices:
2012 ASUS Nexus 7 - KitKat 4.4.4 Stock ROM - leanKernel(grouper) v4.0
T-Mobile Galaxy Note 3 - KitKat 4.4.2 Stock ROM(N900TUVUDNF4) - leanKernel(N900T) v3.8

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