Sorry, but imho, einmc's post is of absolutely zero significance to the original poster's issue...
Plus, it's going to be hazardous after Jan 2020, if the notebook remains connected to the inernet.
Anyway, back to OP:
What is a "battery update BIOS tool"?
Current BIOS version for AH531 (YLDNxxxxxx) is indeed 1.30, while latest version for AH531 (YLDPxxxxxx) is 1.24. Do take care to use the appropriate update bundle for your machine.
Then, there's no such thing as "the" light blue screen sad face error message. The sad face is common (also on the opposite side of the screen), but there is a vast amount of possible different causes, which get indicated by the hexadecimal message number (and accompanying text) on that screen. You might either want to disable "automatic restart on system error" in your Windows and reproduce the error to determine this text, or search the system event log of your Windows installation for an entry decribing this "unexpected system restart".
With this information, search for possible solutions to that specific cause.
Finally, you might want to try to update BIOS using the Admin Update pack for a bootable USB stick instead of the Windows Update utility, which is certified only to run on Windows up to version 8.