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A laptop by Lenovo, commonly found in offices all over the world.

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Laptop Completely Dead Won't Power On At All

I’m in possession of a Lenovo ThinkPad T-410 that I got from my old job of about 4 years ago. It USED to power on and work just fine. Now?…even with the power adapter plugged into it, it just does nothing. No power, no lights whatsoever. What could be the problem? I already tried the “Remove-Battery-And-Hold-Down-Power-Button” routine with negative results. Is there someplace I can ship it to have it looked at? I mean its not a critical issue, but its got sentimental value to me, and I wouldn’t mind giving it a second life as a backup.

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ifixit does not do repairs. Its’ volunteers offer advice on how to try to fix it yourself.

Things to try.

Measure the voltage output of the power adapter and check that it is 20V DC.

If that is OK remove the main battery and the backup battery from the laptop, press the power button for 20 seconds, reinstall the backup battery, connect the adapter and check what occurs. Leave the main battery out at this stage

Here’s a link to the hardware maintenance manual for the laptop. Scroll to p.103 to view the necessary pre-requisite steps and then the procedure to remove/ replace the backup battery.

Take the opportunity to measure its’ voltage as well when out of circuit, as these are non rechargeable batteries. Usually they are 3V. If it is lower than 2.5V replace it. Here’s the part number 02K7078. Search online using the part number only for suppliers

If there is still no power indication on the laptop with the adapter connected, check that the DC-in socket is OK by measuring the voltage at the end of the DC-in connector cable (see p.135 in manual) when the adapter is connected to the laptop. You don’t have to remove the systemboard just disconnect the cable from it.

If this seems all too daunting and / or you don’t have the necessary equipment i.e. DMM (digital multimeter) or expertise then contact a reputable, professional laptop repair service and ask for a quote to repair the laptop.

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Eddie O'Connor wird auf ewig dankbar sein.
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