https://newsupport.lenovo.com.cn/driveList.html?fromsource=driveList&selname=%E6%89%AC%E5%A4%A9M4000q

Intel Chipset Driver
https://newsupport.lenovo.com.cn/driveDownloads_detail.html?driveId=74648


BIOS Update Program
https://newsupport.lenovo.com.cn/driveDownloads_detail.html?driveId=128469