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Lenovo ThinkPad T480 blinking LED startup issue

gabflou Posted messages 2 Status Membre -  
txiki Posted messages 6514 Registration date   Status Contributeur Last intervention   -

Hello,

My Lenovo ThinkPad T480 seems to be stuck in sleep mode. When I open it, instead of a quick startup, I get a black screen and the power button light keeps blinking as if the computer is in sleep mode. However, even when I hold it down for 30 seconds or 1 minute and 30 seconds, nothing happens, and the screen remains black while the LED continues to blink. The computer is frozen and cannot either start up or completely turn off. I tried plugging it in (the charging light comes on in orange, as usual), but nothing changes. I removed the battery from the back (it seems that my model was equipped with two batteries), but the light keeps blinking... I tried holding down the power button for 30 seconds again, as I saw in another forum post describing a similar issue, but that didn't work either...

Is it a battery problem? A bug with fast startup? A loose connection in the power button? I was thinking of letting the battery discharge completely, but it has been a week and the light keeps blinking indefinitely...

Thank you in advance for your advice.


3 réponses

Réponse 1 / 3
Kcaouette
 

Hello, apparently since you've tested what seems most likely, the only thing left is that the processor is dead.
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gabflou Posted messages 2 Status Membre
 

It's amazing, it was working very well until now, I bought it refurbished a month ago... Thank you for your response!

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Réponse 2 / 3
Kcaouette
 

Lol, I'm not going to say that refurbishing is just a selling gimmick; apparently, it's very technical and for each brand you need licenses and spare parts, so there's a virtual world in refurbished products that looks more like a flytrap.
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Réponse 3 / 3
txiki Posted messages 6514 Registration date   Status Contributeur Last intervention   611
 

Hello everyone,
"(it seems to me that my model was equipped with two batteries)": What do you mean it seems? I've never seen two battery slots on a laptop.
Try removing your battery and then unplugging it. Tap the On/Off button several times (to discharge the capacitors).
"but the light keeps blinking": that's proof that there's still power or residual power. Hence the importance of discharging everything!

"I bought it refurbished a month ago": that doesn’t change anything, it works or it doesn’t (apart from the fact that the parts aren’t new, that’s all!).

Best regards!
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