I can't boot my laptop after unlock bios

kwok__

Commendable
Jan 15, 2017
1
0
1,510
I use method on internet to unlock bios functions. intrusion is pressing fn and esc key down til see usb light flash... But I can't see the light flash, i reboot laptop without that usb.. but only battery, charge led is on and the fan spin.there black screen on my laptop..what should I do..i try to hold power botton for 30 second but it didn't works....every method I found didn't work..can i fix it by my self?