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sivant
Paper Tape
Posts: 2
Registered: ‎01-10-2010
Location: US
Views: 1,396
Message 1 of 1

T480 not charging via thunderbolt

My t480 no longer charges via thunderbolt dock. Sometimes it wontw boot if anything is plugged into the thinderbolt port either (black screen after Lenovo uefi splash screen)

 

When plugging my power adapter into the port, it will enter pluged in modern but report not charging. It will maintain charge. When plugging a docking station, attached perepherper function normally, but again, not charging. This behavior started recently. 

 

Additionally I noticed that in device manager the UCSI USB connector manager sometimes will error out with an error 43. But this is sporadic and may be unrelated. Device manger view appears to repeatedly refresh, but have not been able to discover the conflict.

 

I refreshed the os (win10) and it worked correctly for a bit, but then started doing the same thing again.

 

Is this an error induced by a recent Lenovo or Microsoft update?

 

Hardware problem? 

 

Software?

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