Bios update for Corebook X with i5 8259u

Can I get bios update for Corebook X i5 8259u with 16Gb ram?
I’m hoping it can resolve my issue with battery not recognized on Linux. Some units work just fine but many PPL have that problem under Linux.
I have BIOS version 2.20.1271, on yt I saw some reviewer has 2.20.1275 and on his machine battery is recognized under linux just fine.