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Paper Tape
Posts: 2
Registered: ‎02-06-2017
Location: DE
Views: 659
Message 1 of 2

Thinkpad P40 Yoga update -> now screen is black



I used the Lenovo-Tool to automatically check what needs to be updated and followed the recommendations. It was a NVIDIA-Driver update for security reasons and about 10 - 15 other updates. What I noticed late was that there was also a Bios update recommended and selected. However, I tursted in Lenovos automatic update meachnism.


The updates ran trough, despite the NVIDIA-Update which was marked by a red cross. Also the Bios update started and mentioned not to turn off the computer. A Dos-Box under my Windows 10 appeared and disappeared and the computer wanted to shut down - which was happening in a normal way. But now the screens were black, the computer was off. After a while, I switched it on again - the fan went on again but nothing happened. 


Which means: 

- The screen is black all the time (as if it was broken, no text is displayed)

- External screens, connected via dockingstation or HDMI are black

- Computer did not display anything when connecting a bootable USB-Stick with free DOS

- Interestingly, the computer is warm and the fan sometimes changes its speed.


What can I do now? I assume that something went wrong with the BIOS-Update. 

Is there anything I can do on my own? Can this problem be fixed by Lenovo?


Thank you for your replies!


Best regards



What's DOS?
Posts: 1
Registered: ‎04-09-2017
Location: US
Views: 480
Message 2 of 2

Re: Thinkpad P40 Yoga update -> now screen is black

I have the same issue, just updated today.

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