switch SW4 to 1，and reboot it again.
switch SW4 to 1 than has boot from SD card .but i need it boot from emmc
did you update the spi rom? if yes，you just only switch SW4 to 1，it could boot from SD card or EMMC
When I am opening a website my window get crash I dont know why its happening Ignou MAPC Project
it cant update spi rom ,i has got a errer 0 when update