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April 12th, 2026 19:42
Doesn't power on
Hi ,
my laptop randomly stopped working, the keyboard and power flashes once and nothing else. I don't really know what to do and I can't get to my serial tag because the label isn't there and I can't power on the laptop.
If someone knows what to do it would be awesome.


ejn63
10 Elder
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30.8K Posts
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April 12th, 2026 20:10
Unplug the system, remove the base cover and disconnect the battery from the system board. Hold the power button for 30 sec.
If the memory is modular, remove and reinstall the memory modules.
Reassemble the system and see if it will then power up.
Ainac_
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April 12th, 2026 20:19
@ejn63 thanks for advice,
I've tried it but still nothing.
ejn63
10 Elder
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30.8K Posts
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April 12th, 2026 20:30
If so, it likely needs a mainboard. Whether that's worth the cost depends on the system model -- what Latitude model is it? E5430, 7450, etc?
Ainac_
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April 12th, 2026 20:42
@ejn63 well I hope it's not that. it's 7490