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Nakamur
What's DOS?
Posts: 1
Registered: ‎04-14-2019
Location: DE
Views: 460
Message 1 of 1

Lenovo Z50-70 turns on but has black screen

Problem:

Z50-70  turns on but has black screen for sometimes 15 minutes, LEDs and fan are on but no screen,

sometimes beep when power was new connected  

 

What has been studied / tried?

I could fix the problem with:

- Update Win 8.1 to Win 10 Home (still possible with Media Creation Tool)

(problem was still there...)

- BIOS Update  from offical Lenovo Download 

https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-z-series-laptops/lenovo-z50-...

(with Automatic Driver Update)

 

Error Cause / conclusion:

Corrupt BIOS

 

After update the Laptops boots again in less than 30 seconds :-)

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