Lenovo laptops with non-removable batteries have a “power/battery reset” button that is useful to use when troubleshooting problems with:

– laptop not powering on
– external devices (including monitors) not being recognized by the laptop
– power adapters (battery chargers) not being recognized by the laptop
– messages about the power adapter

The actions below do not affect any software or settings.

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Follow these steps to use the “power/battery reset” button:

– Disconnect computer from all cables, including monitors and power adapters.
– Shutdown computer.
– Find a paperclip, toothpick, or other small pointy object.
– Turn computer upside down.
– Stick the paperclip (or other object) in the small hole on the bottom of computer. You should feel a click.

– Click the button a few times.
– Click the button and hold it down for 60 seconds.
– Plug the power adapter back into the computer.
– Turn the computer back on.
– Plug external devices and/or cables back into the computer.