***Online Manual, etc.:***
https://pcsupport.lenovo.com/in/en/products/laptops-and-netbooks/ideapad-s-series-netbooks/s145-14igm
***Here are the meanings of the light:***
• Blinking three times: The computer is initially connected to power.
• On: The computer is in use.
• Off: The computer is off or in hibernation mode.
• Slow-blinking: The computer is in sleep mode.
• Fast-blinking: The computer is entering sleep or hibernation mode.
***Try to enter the BIOS via function key:***
# Turn the PC off.
# Turn the PC on.
# The PC screen displays the Lenovo logo.
# Immediately and repeatedly press (Fn+) F2 or just F2. Accessing the BIOS may take multiple attempts.
# Once in BIOS/UEFI note settings, especially for hard drive boot, and then set to default settings.
Did that fix it?