I have a question regarding one of these lenovo laptops. I have a thinkpad p1 gen 3 20th-ct01ww. Recently I've had 2 that after windows updates, it no longer detects the battery. I have tried rolling back the bios update and that didnt fix it. Is this something that requires modifying the original bios to fix or is it bios related at all ? Is this issue common. thanks.