My laptop was working fine a few days ago, but now when I turn it on all I see is the power light blinking and a low humming/crunching noise, but the screen stays black. Also, the laptop will only turn on at all when it is plugged in. Anyone know what could be wrong?
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Re: Laptop won't turn on
You say that the laptop only works well when its plugged into AC power? Being a PC technician the first thing i would be looking at is the battery, faulty batteries cause problems with laptops on start up, I think you may need a replacement battery
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Call there customor support office if they have one, Most companies are more then happy to try end help you out, I have a (Asus) Laptop that is only 5 months old end had start up problems with it, There customor (Support) Is verry good,
Whenyou connect the power adapter into the laptop, does the power LED lightup? If not then -The battery adapter or the adapter's power lead or the laptop's powersocket could be faulty.Check power adapter's DCplug that connects into the laptop power socket with a multi-meter, the voltageshould be slightly higher than the voltage that is printed on the label on thebottom of the adapter. If the voltage is zero or way below the voltage that isprinted on the label then the power adapter is faulty and needs to be replaced.If the adapter is OK thenconnect it to the laptop and power it up, then look at the power/batterycharging LED light and wriggle the power plug in the laptop's powersocket. If the power/battery LED light flashes and in a certain position thisLED light stays firm, then the power socket is either faulty or it has a drysolder joint where it is connected to the motherboard.This can be repaired but itrequires the laptop to be completely dismantled to get at this power socket andrepair. If you cannot DIY then I suggest you get a quote first.
Welcome to Fixya! If the battery light is blinking red,that indicates low power, there's a possibility that the problem is with the AC adapter, or the battery or maybe the DC port itself, please follow these simple steps for you to be able to isolate the exact problem.
1. Removed the battery.
2. Connect the laptop directly to the power outlet without using the battery just for the meantime.
3. Turn on the laptop. If the laptop is able to power on, that means that the AC adapter is working fine as well as the DC port. If the laptop is not able to turn on, it maybe the AC adapter itself or the DC port.
4. Try to use another AC adapter if possible, make sure that that AC adapter is working fine. If the laptop is still not turning on, the problem is with the DC port itself. In that case, you will need to replaced the Motherboard itself.
Hope this will help...Thank you for using Fixya...
You are having the same charging issue that many other owners of this laptop are having. The power module where you plug in the AC adapter to the computer is defective. This is a known issue that Best Buy usually can't figure out. I sent mine back to Best Buy 4 times under warranty and they were unable to fix it.
If it's still under warranty tell them to replace that power plug circuit board or whatever it is and it will work fine. Mine has been working fine since Toshiba replaced that part 6 months ago.
i think urs battery get damaged....
but before replacing it first remove it safely n again fix it on laptop....
then restart ur laptop if same problem is coming...than it is sure dat ur battery get damaged or its efficiency get lower....
send me feed back if ur facin more problems wid ur laptop at firstname.lastname@example.org