Do a BIOS update yourself.
download BIOS update fıle from web site if available.

do update then see if problem solved. that saves you 100Qr.

if not solved then BIOS update will not have helped anyway.
you would have given the 100Qr for nothing practical.

a battery that used to work but has stopped to work generally is not because of BIOS problems anyway.

try new battery. 250Qr is probably right.

but that may not work if problem is some other place.

Burnout.
Beware! :)