OK6410无法启动，停在开机画面，DNW上显示到倒计时就停止了

下面是DNW上显示的代码，上午还能进入wince里面，但是不知道为什么又进不去了。
WinCE 6.0 Steploader for SMDK6410

Launch Eboot...


Microsoft Windows CE Bootloader Common Library Version 1.4 Built Nov 22 2010 08:44:45
Microsoft Windows CE Bootloader for the Samsung SMDK6410 Version 2.4 Built Dec  7 2010

+OALArgsInit()
SocID:0x36410101
Arguments area is initialized
-OALArgsInit()
INFO: (unsigned)C_IsrHandler : 0x8003FEB8
INFO: (unsigned)ASM_IsrHandler : 0x800424A0
INFO: (unsigned)pISR : 0xEA010920
BP_Init
[FMD] ++FMD_Init() ****
[FMD:INF] FMD_Init() : Read ID = 0x0000ecd5
[FMD] FMD_Init() : NUM_OF_BLOCKS = 4096
[FMD] FMD_Init() : PAGES_PER_BLOCK = 128
[FMD] FMD_Init() : SECTORS_PER_PAGE = 8
[FMD] --FMD_Init()
[FMD] FMD_GetInfo() : NUMBLOCKS = 4096(0x1000), SECTORSPERBLOCK = 128(0x80), BYTESPERSECTOR = 4096(0x1000)
[FMD] FMD_GetInfo() : NUMBLOCKS = 4096(0x1000), SECTORSPERBLOCK = 128(0x80), BYTESPERSECTOR = 4096(0x1000)
wNUM_BLOCKS : 4096(0x1000)
TOC_Read
-TOC_Read
[Eboot] ++InitializeDisplay()
[Eboot] --InitializeDisplay()
Press [ENTER] to launch image stored on boot media, or [SPACE] to enter boot monitor.

Initiating image launch in 5 seconds.

最后就停在这个5秒的倒计时，敲空格跟回车都没反应。  
我重新按照教程，一键烧写了wince6.0， 但是开机还是这样。 求帮助！