Guess I would reinstall firmware in Stock recovery
Restore/Unbrick 7in Fire 2015 5th Gen with ADB Sideload
Sent from my XT1060 using XDA Labs
Ha! Root Successful!
Sideloaded the OS firmware, reinstalled KingRoot apk and at 17% of rooting it r...
Reflash the boot logo from here. Your choice of colors of the Motorola M logo.
Either via ADB or TWRP, your choice.
Flashed Black/Teal via TWRP. Thank you.
Thank you. Sorry, I did previously do a cursory google search for the problem and didn't find such an answer saying not to use the newer version.
Apologies for being another who seemingly didn't pay attention, but the version you recommended work