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Tecknogekko
What's DOS?
Posts: 3
Registered: ‎11-05-2018
Location: US
Views: 134
Message 1 of 5

Yoga 2 pro not booting (possibly no post)

My yoga 2 pro randomly blue screened (win10, fully updated). It completed the collection of the logs when it did. Then when it finished, upon reboot I don't think its posting anymore. I hit the power, the pwr led turns on followed by the keyboard backlight for about 5 seconds then turns off. No display backlight or anything.

Sr Support Specialist
Posts: 8,901
Registered: ‎11-30-2015
Location: PH
Views: 113
Message 2 of 5

Re: Yoga 2 pro not booting (possibly no post)

Hi Tecknogekko,

 

Welcome to the Community Forums.

 

You can try to perform power checkout (page 21) isolating that the ac charger still works. Try plugging the ac charger as the indicator (battery and power led) should have some light. If not then consider having it taken to a service center to isolate board issue if not other internal parts.

 

You can also have it rest for a while under room temperature while disconnected with the charger and battery connector unplugged if you have the tools and skills to open the chassis for physical examination (ex. darkened spots, burnt smell, buldging capacitors, dc in cable loose etc.). 

 

I hope this helps answer your query.

Update us how it goes.

 

Regards

 



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Tecknogekko
What's DOS?
Posts: 3
Registered: ‎11-05-2018
Location: US
Views: 89
Message 3 of 5

Re: Yoga 2 pro not booting (possibly no post)

Nothing worked. Tried booting with just battery, battery + charger, and charger alone (battery disconnected from mainboard). All shut down after 10 seconds of pwr led, keyboard backlight, charging led (if plugged in, and only when the battery was connected at the same time), with no display activity. I reseated every plug, wire, and ribbon cable internally before this as well.
Tecknogekko
What's DOS?
Posts: 3
Registered: ‎11-05-2018
Location: US
Views: 88
Message 4 of 5

Re: Yoga 2 pro not booting (possibly no post)

There we also no visible damage on any connector, or any capacitor/solder joint anywhere on the boards.
Sr Support Specialist
Posts: 8,901
Registered: ‎11-30-2015
Location: PH
Views: 75
Message 5 of 5

Re: Yoga 2 pro not booting (possibly no post)

Hi Tecknogekko,

 

Greetings.

 

You can take the machine in a service shop for verification of points of failure. We are hoping they can do board mapping on the systemboard and verify the parts that need replacement for a No POST issue.

 

Regards



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