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Ondrej93 Student
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Black screen on boot

Probook 6560b
Microsoft Windows 10 (64-bit)

My Probook 6560b worked fine for a few years, but last week, it did not boot up again. Everything seems to work as usual, all the indicators are on, NumLock key react correctly, I can hear a fan, but the LCD, as well as external screen remain black and does not show anything (including bios/boot messages).

 

I performed a hard reset, replaced memory modules, disconnected CMOS battery, but the behavior remains the same. I also tried to perform a BIOS recovery with 3in1 USB stick (sp69063), but it does not seem to work for me. Windows+B with power button seems to enable some special mode with CapsLock indicator blinking, but the PC restarts itself in aprox. 9 seconds and nothing changes. Is there anything I can still try to resolve it?

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