What is this button? [Lenovo 20L6S01Q2Y motherboard] (programming.dev)

submitted 6 months ago* (last edited 6 months ago) by emotional_soup_88@programming.dev to c/ece@lemmy.world

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cross-posted from: https://programming.dev/post/47186720

Edit: this guide doesn't seem to mention it https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t480-type-20l5-20l6/20l6/20l6s01q2y/document-userguide

I was flashing Libreboot on to my ThinkPad T480, when I noticed this little button. Sorry for the poor images!

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[-] Onomatopoeia@lemmy.cafe 3 points 6 months ago* (last edited 6 months ago)

Well, if the power is off/battery out you could safely push it to feel it.

Looks like a button to me, wonder of it's just a reset button.

Curious to hear from an expert though!

this post was submitted on 14 Mar 2026

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