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What's DOS?
Posts: 1
Registered: ‎12-16-2017
Location: GB
Views: 3,704
Message 1 of 3

Yoga 2 Pro stuck in loop: keyboard blinking but no display

I have a Lenovo Yoga 2 Pro laptop (out of warranty) that until recently had been absolutely fine. A few days ago, Windows updated using automatic update.
Then, it seemed to crash upon opening Chrome or Edge, and was able to be rebooted only when the screen was flexed at a certain angle.
Now, the laptop seems to be caught in some kind of hibernation or sleep loop. The screen won't come on at all, and there is no access to BIOS or safe mode using function keys or a recovery USB. Novo button does nothing.
The keyboard flashes on and off (with no capslock recognition), and despite adjusting the screen angle, I can't get it out of the loop.
My feeling is still that it's stuck in a weird sleep mode or power setting loop, and that it's not a hardware or motherboard issue.
But I can't get it out of the loop.
Any ideas would be appreciated; I've looked at posts about similar issues but I'm stuck.
Thanks, Rick
Support Specialist
Posts: 2,948
Registered: ‎02-22-2017
Location: GB
Views: 3,523
Message 2 of 3

Re: Yoga 2 Pro stuck in loop: keyboard blinking but no display

Hello R-Holli

Thanks for using the Lenovo forums.

Try a static discharge for this, it may help to resolve the issue or at least get rid of any built up static on the motherboard.

(If the battery is internal, please just skip the remove/replace battery steps.)
1. Turn the unit off
2. Remove the battery and the Mains adapter
3. Press and hold the front power button for 30 seconds
4. Replace the battery and the Mains adapter
5. Turn the unit on as normal

Hope this helps, let us know how you get on.

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What's DOS?
Posts: 2
Registered: ‎02-06-2019
Location: US
Views: 1,007
Message 3 of 3

Re: Yoga 2 Pro stuck in loop: keyboard blinking but no display

When did "built-up static" become a thing?


You realize this is not a normal user-replaceable battery and it's very involving, right?



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