04-21-2019 10:48 AM
I connected what I suspected to be a faulty USB device to my T480.
The laptop shut down uppon the connection and doesn't restart. It doesn't power on.
It doesn't charge (the orange light doesn't turn on).
I am surprised there is no kind of voltage protection on USB port.
Solved! Go to Solution.
04-21-2019 11:45 AM
Have you tried the "paper clip" reset trick?
It is called the "Emergency Reset" in the HMM (Hardware Maint. manual)
See that document for details
04-21-2019 11:59 AM - edited 04-21-2019 08:37 PM
Any chance the USB device bent pins in the laptop port? A 5V short there might cause what you describe.
I imagine you've already checked but just in case...
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