Shutdown phone use vol- and usb cable to enter fastboot
Press ENTER key to continue...
Wait FASTBOOT connection....
Replace kernel...
target reported max download size of 471859200 bytes
sending 'kernel' (12882 KB)...
OKAY [ 0.375s]
writing 'kernel'...
FAILED (remote: Command not allowed)
finished. total time: 0.391s
Replace recovery...
target reported max download size of 471859200 bytes
sending 'recovery_ramdisk' (25630 KB)...
OKAY [ 0.716s]
writing 'recovery_ramdisk'...
FAILED (remote: Command not allowed)
finished. total time: 0.733s
Unplug usb cable, use vol+ and power key to enter recovery.
Press ENTER key to continue...
When recovery screen show, connect usb cable.
Press ENTER key to continue...
Wait ADB connection....
