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This tutorial would help you solve the problem to press power button even when there’s no power on. I will explain how to find the failure reason for system shutdown of a laptop, but the tips are not aiming for some special brands or models, they should work for most laptops.
laptop is completely dead, and new battery cannot charge!
When you plug in the power adapter and press on the power button, but the laptop has no response, no starting sound, no LED light, no fan rotating, except black screen, there
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1.Ensure your wall outlet is working, which laptop AC power adapter could get power from the outlet. But how could you know whether there