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Toshiba Satellite Ultrabook U945-ST4N02 Windows 8,

Toshiba Satellite Ultrabook U945-ST4N02 Windows 8, 64bit. The screen can't display anything, it boots up, the led lights come on but the screen just remains blank. I've tried everything posted in forums but nothing helps. Please your help is much appriciated.

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  • Expert
  • 252 Answers

Check with the moniter by connecting the VGA Cable. is there any display on moniter if yes then laptop;s screen faulty otherwise motherboard issue.

Posted on Oct 12, 2013

Testimonial: "Sandeep Kumar, there is no vga port on the satellite ultrabook U945-ST4N02."

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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dugiehowsa
  • 114 Answers

SOURCE: Windows boots up but the screen is completely blank

First, try booting into safe mode and un-installing all the Java Runtime Environments (JREs). Reboot after un-installing all the JREs. If prompted to reboot after one install, click no until all JREs have been un-installed. Now, what do you mean by a blank screen? Do you see the Windows XP screen as it initially boots up, but then the screen just goes black? If this is the case, then your video settings probably got wedged. Perform the following steps to reset the video settings back to the default. 1) Boot the laptop into safe mode. Boot into safe mode with networking support if possible. This can be done by tapping the F8 key as the computer first turns on. 2) Once you are at the Desktop, right click on My Computer and select Manage. 3) In the window that appears, select Device Manager from the menu on the left. 4) Find Display Adapters on the right and click the plus sign. This will list the video adapter that you have. NOTE: WRITE this down EXACTLY. You may need to go and get drivers for this. Seeing this is an older model, I doubt you'll need it, but better to be safe then sorry. 5) Go to your manufacturers support web site and download these drivers. You may not need them, but better to be safe then sorry. http://tinyurl.com/lxn2p NOTE: Skip step 5 if you did not boot with network support or cannot get to the Internet. This can be done from normal mode. 6) Right click on the display adpater and choose un-install. Hit OK on the window that appears and reboot the machine when the process is done. 7) The machine will take longer than usual to boot, as Windows XP is re-discovering the video adapter and resetting everything to the defaults. When it is done booting, the screen may look weird since the settings are now the defaults. You can the set them to what you want by right clicking on the desktop and selecting properties. Then go to the settings tab. 8) IF it did not re-discover the video adapter (this can be confirmed through the device manager), then go ahead and install the drivers. Windows Update will most likely also have the drivers.

Posted on Sep 13, 2006

muthur85
  • 117 Answers

SOURCE: Help to repair ACER Travelmate 290LCi

this is normally motherboard or powe side problem check your motherboard

Posted on Nov 07, 2007

  • 1003 Answers

SOURCE: toshiba satellite with windows xp will only show black sreen and wont let windows xp repair

AvioriX is right your operating system is gone.

if u dont have restore disk get a windows xp program disk from walmart or target or office supply store and load operating system from it.(this will only load windows xp.) but will bring computer back up

Posted on Jan 15, 2008

  • 253 Answers

SOURCE: Toshiba Satellite L25-S1216 - blank screen

Try to shutdown, remove battery, remove AC plug, Press and Hold Power button for 30 seconds, replace battery and AC adapter and test.
do you hear windows booting ( the startup sound) after a few minutes, if so there may be a monitor hardware problem

Posted on Mar 30, 2009

Santhosh_7
  • 233 Answers

SOURCE: MY COMPAQ PRESARIO NOTEBOOK CQ50 100EM - DOES NOT

The issue might be with the hard drive. I recommend you to test the hard drive.
If the hard drive test fails, then it is confirmed that the issue is with the hard drive of your notebook.
Click on Testing a hard disk in HP notebooks in the below link to test your hard disk:
http://notebook-solutions.blogspot.com/2009/06/all-about-hard-disks-in-laptops.html
You may also try the steps in the below links:
http://h10025.www1.hp.com/ewfrf/wc/documentSubCategory?rule=23287&lc=en&dlc=en&cc=us&product=3752686
http://notebook-solutions.blogspot.com/2009/05/notebook-solutions-notebook-solutions.html
Follow the steps from No Boot or no Power in laptops

Posted on Jun 27, 2009

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