为什么tiny210启动后停留在USB-Mode:Waiting ..

如题，不知道什么原因，配置文件如下：
#This line cannot be removed. by FriendlyARM(www.arm9.net)

CheckOneButton=No
Action = Install
OS =Linux
USB-Mode=No

LCD-Mode = No

LowFormat = No
VerifyNandWrite = No
CheckCRC32=No

StatusType = Beeper | LED

################### Android 4.0.3 ####################
Android-BootLoader = Superboot210.bin
Android-Kernel = Android/zImage
Android-CommandLine = root=/dev/mtdblock4 rootfstype=yaffs2 console=ttySAC0,115200 init=/linuxrc androidboot.console=ttySAC0 gs=0
Android-RootFs-InstallImage = Android/rootfs_android.img

################### Android 2.3.1 ####################
#Android-BootLoader = Superboot210.bin
#Android-Kernel = Android2.3.1/zImage
#Android-CommandLine = root=/dev/mtdblock4 rootfstype=yaffs2 console=ttySAC0,115200 init=/linuxrc androidboot.console=s3c2410_serial0 gs=0
#Android-RootFs-InstallImage = Android2.3.1/rootfs_android.img

################### Linux ####################
Linux-BootLoader = Superboot210.bin
Linux-Kernel = Linux/zImage
Linux-CommandLine = root=/dev/mtdblock4 rootfstype=yaffs2 console=ttySAC0,115200 init=/linuxrc ctp=0 skipcali=yes
Linux-RootFs-InstallImage = Linux/rootfs_qtopia_qt4.img

################### Windows CE6.0 ####################
WindowsCE6-Bootloader = Superboot210.bin
WindowsCE6-BootLogo = WindowsCE6\bootlogo.bmp
WindowsCE6-InstallImage = WindowsCE6\NK.bin
WindowsCE6-RunImage = WindowsCE6\NK.bin

是通过烧在SD卡上来下载程序的，为什么还会启动USB Mode，有点莫名其妙啊？

好像是Superboot210.bin这个文件可能被更改了，建议从光盘中重新拷贝出来再烧

修改成 USB-Mode=YES 就好了