[Nano PC-T3] In console debug can't hit keyboard

Hi, 
This issue on my nanoPC-T3. 
In console debug at Uboot and Kernel, I can't excute hit keyboard, before .
Has anyone had this problem with me? if have, Can you share with me how to
fix it?

Regards,
HuyLe

In uboot:
U-Boot 2014.07-g62e0395-dirty (Apr 18 2016 - 19:12:14)

PLL : [0] =  800000000, [1] =  800000000, [2] =  614394000, [3] = 
800000000
(0) PLL1: CPU  FCLK =  800000000, HCLK = 200000000 (G0)
(7) PLL1: CPU  FCLK =  800000000, HCLK = 200000000 (G1)
(2) PLL3: MEM  FCLK =  800000000, DCLK = 800000000, BCLK = 400000000, PCLK
= 200000000
(1) PLL0: BUS  BCLK =  400000000, PCLK = 200000000
(8) PLL0: CCI4 BCLK =  400000000, PCLK = 200000000
(3) PLL0: G3D  BCLK =  400000000
(4) PLL0: CODA BCLK =  400000000, PCLK = 200000000
(5) PLL0: DISP BCLK =  400000000, PCLK = 200000000
(6) PLL0: HDMI PCLK =  100000000
I2C:   ready
DRAM:  256 MiB
Heap = 0x43000000~0x45000000
Code = 0x42c00000~0x42c74984
GLD  = 0x42bffeb8
GLBD = 0x42bffe68
SP   = 0x42bffe68,0x42bffe50(CURR)
PC   = 0x42c061e0
TAGS = 0x40000100
PAGE = 0x42c80000~0x42c8c000
MACH = [4330]
VER  = 0
BOARD= [nanopi3]
LCD  = N/A (-1)
MMC:   NXP DWMMC: 0, NXP DWMMC: 1, NXP DWMMC: 2
In:    serial
Out:   serial
Err:   serial
switch to partitions #0, OK
mmc2(part 0) is current device
HDMI: display.0, preset 0 (1280 *  720)
HDMI: PHY Ready!!!
DONE: Logo bmp 800 by 480 (3bpp), len=1152056
DRAW: 0x47000000 -> 0x46000000
Hit any key to stop autoboot:  2   <<< As the countdown to launch it into
the kernel, I does't excute hit keyboard for stop at uboot

Regards,
HuyLe

It's working, so I closed this topic.
Regards,
HuyLe