Customer feedback while updating bios the machine turned off.
When you press the power button, the machine runs for 5 seconds and then turns off.
Сould someone help me repairing my original dump?
Thanks in advance.

device:Laptop
brand :LENOVO
Model :THINKBOOK 15 g4 iap
Board no:LA-L931P ,rev1.0
S/N: MP2ЕЕЗ63​...