This might be useful to someone for development purposes. I split the fire boot.img that I extracted from the 6.1 update.
This zip file contains boot.img-kernel and boot.img-ramdisk.gz
http://www.multiupload.com/F1X0JAZYAC
This zip file contains boot.img-kernel and boot.img-ramdisk.gz
http://www.multiupload.com/F1X0JAZYAC