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Re: No screen power
Look a the screen real close, if you see a faint dark version of the image, this could be a backlight issue, otherwise a screen cable or a logic board issue. Backlight repairs are somewhat difficult. As much as I would like to be able to tell you a quickfix that will solve backlight the problem, it's a pretty arduous repair that requires 1-2 hours for a trained person. It's feasible to do it yourself if you're tech savy, but you'll most likely have to google for guides that show you exactly how to replace the backlight step by step. Check on how to take the screen apart and make sure inverter is still connected properly. If the inverter is connected and you still don't have light, then you have a backlight issue. I work for Computer Repair NYC and i have to fix this problem a lot, it's so easy to break the lightbulb in the process.
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Sounds like you ran repair and it may have failed.
So I have several questions;
Have you tried booting in safe mode? Does that work? If so you could select last known good as an option and try that.
Also sounds like the file you replaced the missing one with may not have been the correct version and that can cause a conflict. The file you installed may need to be updated. Since you know the missing file (I found that usually DLL's get corrupted so I'm guessing here) you could just download the needed file from
When you go to turn it off do you use the power button, or do you go to start and shut down? If you shut it off by the button this is not good, you can corrupt your files by doing this because it doesnt give Windows the chance to close its needed files first. Excessively using this will definitely cause damage to your computer. If you are able to get to the ASUS logo at startup, try to the following.. reboot and when you see the logo hit f8, you will then be taken to a black screen that gives you a few options. Arrow down to the option that says Safe mode with command prompt and hit enter. You will then be redirected to another black screen with a command prompt that looks like this.. C:\***** . At the C: type the following, chkdsk /f this will test your hard disk for errors and should repair them as well. Once this is done type exit and reboot, you should be able to boot into windows successfully now. Let me know if you have further issues as we will go to step 2. Hope that helps and gets you goin!
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Okay, this is unfortunately this is one of those times I call check the obvious first, so even though you have already thought of these things please check them again, first is the monitor plugged in? Is it on? Is the brightness up? Is the cable that connects the monitor to the computer plugged in? (That is usually the blue plug, or a tan plug). If you have verified that all of these things are in there correct place, I will need to know one more thing before I can continue troubleshooting. Is your monitor a Cathode-Ray Tube Monitor (Very big monitor that is usually associates with older computers) or LCD Monitor (Very thin).I will need to know this in order to continue troubleshooting.
Ryan Frame Creative Energy Associates Technical Center
I'm betting that you need a new "Inverter" board, especially if it's a Gateway 450ROG.
There is an inverter that Gateway used in several models that has a known defect.
Inverters are relatively inexpensive ,and easy to replace. You could ven do it yourself if you have a little skill at disassembly / re-assembly. Tell me the model number of your laptop and I can help you more
can you go into BIOS? be sure you press the power button to know you are indeed starting up. if you see the bios, press F8 and check the settings there. change anything you want but be cautious though.