Question about Sony CRX835E CD-RW/DVD-ROM (Combo) Burner

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Cd rom disappeared from computer - Sony CRX835E CD-RW/DVD-ROM (Combo) Burner

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  • colbyhyatt May 11, 2010

    my acer dvd/c-rw combo dont work on my labtop


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Hi to all.

My Sony CRX835E CD-RW (combo drive, writes to cd's, and plays dvd's) suddenly vanished from my computer and was not showing in my devices.
This is my cd drive for my LAPTOP.
So, as you can imagine, i wanted nothing more than to open her up, check all cabling was working/plugged in correctly, but being a laptop made it a little harder, seeing as i have never opened a laptop up.
That was going to be my last resort, seeing as it has run out of warranty.
Anyway, would like to inform both laptop users and pc users of the few solutions that can fix the vanishing cd drives.

First, check in device manager to see if it is showing there. If it is then it more that likely will have a yellow symbol next to it, saying it isnt working correctly. IN THIS CASE, it more often than not is a BIOS problem which can be caused by installing or uninstalling various differnt software, E.g nero, powerdvd, etc.

3 things you can try here.

First off, quickest and easiest is to UNINSTALL the device from device manager. Then refresh the device manager. This will check again for any new plug and play hardware not installed.
Once that has done, and the drive is installed, the problem will hopefully be fixed.
If not, than try number 2.

You proberly would have by now read of changing/deleting the values of UPPER/LOWER FILTERS in a specified pathway. There is a detailed walkthrough of how to do that on this site, so try this step, it has fixed alot of errors.

Now this is another quick and easy way to try to solve the problem, and as far as i can understand the program pretty much does the same as option 2, but makes it alot easier for people with only a little knowledge of computers.
The site is called WWW.DOUGKNOX.COM
On that site, there is something called nocd/dvd fix. Give it a whirl, fast, easy and may work for you.


If your device manager does not show your drive, then you MUST check the cabling, making damn sure it is all plugged in correctly. Once you have done that and still no sign of a drive, then it means your drive has proberly died, and needs replacing.

Now, if you own a laptop which has gone out of warranty then i recommend if you choose to check the cabling, get someone who knows what they are doing to do that task for you.

My drive was not showing in device manager, and my last resort was to open my laptop and check everything. Just as i was about to go and grab my screwdriver set, a slight moment of rage overtook me. I opened my drive draw, pushed the drive door closed until it stopped, than i CARRIED ON pushing the drive, and i felt it move ever so slightly, and then i heard a click.

Amazingly this worked, and my drive is now recognised again.
I appreciate that this..erm...method, is not a method most people would try. But just in case everything else fails, give it alittle push, thats all mine took.

Thanks for reading, and hope i have been of some help.

A.K.A Cr8zykev
Now i spent alot of time myself going through all these methods, then going through them again, and again, litterally pulling my hair out trying to fix my problem.

Posted on Nov 30, 2008

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