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I've a problem with my pc ProBook 4331s, when i switch on it does not display anything in a screen, please help me

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If your laptop appears to boot up and the hard disk LED flashes, then the problem is probably a back light fault. This can be a faulty inverter or a faulty CCFL lamp. Please click on this link and follow my instructions to identify the fault and possible fix :-

Posted on Apr 21, 2013


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Posted on Jan 02, 2017

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SOURCE: My PC will not restart...

you have a failing or failed hard drive that needs replacement.

Posted on Jul 05, 2011

  • 138 Answers

SOURCE: Please help me! I've forgotten

just remove the back up battery inside your laptop. find inside or sometimes it has small window cover with small screw to lock or clip look it under or side the laptop.

Posted on Aug 12, 2011

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SOURCE: i have brand new HP

if its brand new that call is free 24hours day

Posted on Aug 23, 2011

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SOURCE: hp probook 4510s wireless isn't working

you will need to open up your network connections

click start control panel network connections this may vary depending on your operating system look for local area connection if you see a red X or a yellow exclamation or question mark ! ?

you will need to update or install the driver or it could be firewalled

click start control panel administration tools computer management device manager scroll to network adapters should see a yellow question mark? right click install drivers

the driver might be on the disc supplied by your ISP internet service provider
or the motherboard disc or you might download one if you dont have on a disk

Make sure you Ethernet is enabled in bios restart your computer during the boot up process you will see on your screen a certain key to

press to enter set up (BIOS) press and hold that key to enter bios using arrow keys scroll to intergrated peripherals
look for SiS On Chip Pci Device press enter scroll to SiS 10/100m press enter make sure its enabled

to create the menu tab on your homepage right click in the top toolbar you should see a number of toolbar options select the menu tab which will add File Edit View Favorites Tools and Help

click on the tools at the bottom of the drop down list will be internet options or
click start control panel internet options you will see a home page box To Create Page Tabs type

each adress on its own line (type in or your preferred home page and browser
below that will be change search defaults click on settings you will see all search providers you

have if dont need any of them you can disable or remove them

click start type cmd press enter you will be in DOS mode

type in ipconfig press enter

you will see all of your internet connection details

or type in your default gateway adress into your internet search should read something like to get an inertnet connection

hope it helps

Posted on Jul 17, 2012

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I purchased a brand new HP Probook 4420s two day before, today I get a problem on that. My screen get off. I didn't show anything. please help me what to do..........


I think you can try this step and see if its going to turn on.

1. Remove the battery and Unplug the AC power.
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Hi its the problem with LCD Back lit. it reached its end of life. if your 2200 is still under warranty with Dell just get the LCD replaced. If its not under warranty you can call Dell Out of Warranty Repairs on 8002884410 but they charge too much. Or if you think you have used it for long enough not worth spending on repairs .. you can still use it but not as notebook you can use it like a desktop PC, just get any desktop LCD Monitor and connect it to the laptop and use that as primary display this is the cheap and better solution if you are not carrying around the laptop much. Press Fn+F8 key to toggle or switch the display to get it on LCD Monitor ..

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