NX cboot can't run

I use spec the CBoot_Standalone_Readme.txt
Compile the cboot_src_t18x.tbz2 package, write, but can’t run the jetson-xavier-nx-devkit board.

Should i use the cboot_src_t19x.tbz2?, Where can i download ?

I need cboot to display output using hdmi, Show LOGO,If you do not modify it, it will take 13 seconds for the boot time to display the LOGO, which is too long

》》 ./flash.sh -k cpu-bootloader --image …/cboot/out/build-t186/lk.bin jetson-xavier-nx-devkit mmcblk0p1
》》[ 21.0832 ] Coldbooting the device
[ 21.0857 ] tegrarcm_v2 --ismb2
[ 21.1062 ]
[ 21.1067 ] tegradevflash_v2 --reboot coldboot
[ 21.1072 ] Bootloader version 01.00.0000
[ 21.1225 ]
*** The [cpu-bootloader] has been updated successfully. ***

NX Reboot , UART Log Message, refer to next

initializing target
calling apps_init()
starting app shell
entering main console loop
]
》》》

Sorry that you should use cboot_src_t19x.tbz2.

Jetson Xavier series: https://developer.nvidia.com/embedded/L4T/r32_Release_v5.0/sources/T186/cboot_src_ t19x .tbz2
Jetson TX2 series: https://developer.nvidia.com/embedded/L4T/r32_Release_v5.0/sources/T186/cboot_src_ t18x .tbz2