Hello Scomu,
I would request you to try updating the BIOS to the latest version to A07 and check if that works.
**NOTE: Few things to ensure before updating the Bios is, the Ac Adapter should be plugged in and the battery should have minimum of 15% charge. No other external peripherals should be connected to the computer. Please ensure that the Bios update should not be interrupted else it would damage the motherboard.
Please write back with your findings.