The solution to the problem that ASUS S400CA series cannot wake up from sleep standby is as follows:
1. Please Check to see if you have upgraded the memory yourself, and if so, remove it.
2. It is recommended to update the new version of BIOS and driver on the website.
3. It is recommended to reinstall the operating system.
4. If it fails to operate, it is recommended to contact the service center and ask an engineer to conduct a detailed inspection.