この方法でtwrp、cm13入れられた
[Thor][Apollo] Unlocking bootloader with any firmware
http://forum.xda-developers.com/kindle-fire-hdx/general/thor-unlocking-bootloader-firmware-t3463982
http://forum.xda-developers.com/kindle-fire-hdx/development/recovery-twrp-3-0-0-0-t3322547
http://forum.xda-developers.com/kindle-fire-hdx/orig-development/rom-cm-13-kindle-hdx-2015-11-29-t3259732