iMX6Q烧录uboot后重启直接进入download mode

[xiaochao0131]

我在官网上下载了最新的uboot（v2015.07）并且用配置文件（nitrogen6q_defconfig） 编译了uboot，在windows 7下用mfgtools烧录uboot，一开始在设备管理器里我看到这个设备被识别为HID-compliant device，当mfgtool提示jumping to OS image后，设备被识别为USB大容量存储，我根据这个设备的驱动信息，将ulc2.XML中的vid和pid都改成了USB大容量存储的vid和 pid，<STATE name="Updater"   dev="MSC" vid="0525" pid="A4A5"/>，几秒钟的时间就提示Done，然后我将板子断电，将SW1开关设为D1=OFF，D2=OFF，重新上电后发现串口没有任何信息，板子仍处于download模式。请问是那里出了问题？附件是我的ucl2.xml和cfg配置

[Rita_Wang]

Hi,

Good news you have solved the problem. Welcome to create new thread in our community:smileyhappy:.

Have a nice day

Dan

[xiaochao0131 · Accepted solution]

The issue is that there is something wrong with my SD Card, I changed another SD Card and put u-boot.imx and 6x_update files into SD Card, use sb_loader or mfgtools to make my board into u-boot, and run "run upgradeu" command to update uboot, the latest u-boot can be flashed successfully.