1.建议您捅一下复位孔重启机器试一下

2.或者下载系统程序安装：
http://www.eebbk.com/downdetail.asp?id=232057&csid=13181&classid=13183&tinyclassid=&dhbig=%C8%ED%BC%FE%BC%B0%B9%A4%BE%DF&dhsmall=%B3%AC%BC%B6%CF%B5%CD%B3%BB%D6%B8%B4&dhtiny=&title=%CA%D3%C6%B5%D1%A7%CF%B0%BB%FA%20H2&mode=13180

我有步步高 视频学习的问题要问