Hi Ban, Thank you for your nice comment. Thanks from France Sorry for my english. Free-fall sensor — Wikipedia, the free encyclopedia http: This report will quickly discuss how to fix this hardware device problem, including an actual example of downloading the device driver from the official website of Dell to get rid of this Unknown Device in the Device Manager. After downloading the device driver for Free Fall Sensor, you must run the driver executable file, reboot your Dell PC, and make sure that there are no more problematic device or Unknown Device listed in the Device Manager. Wallace, Thank you for your kind comment.

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Thank you, this was bothering me for some time. I like it… There is one bug in it, I still cannot solve it. People want a fortune for them. All the best from Germany Ms. Yay Dell for wasting my day.

Worked perfectly on my Dell Latitude Hi Jure DJ, Thank you for your comment. Worked like a charm, thank you for the informative report, and workng link. Thank you kindly for your excellent comment Marc!

J.D. Hodges

I have the Dell-Cam software installed already and working fine. Solving these issues will require a lot of time and energy, and to make sure that you will have the correct device drivers for these problematic devices, you can consider using Driver Detective software.


You have a nice laptop! That might help with the tiny quirks you are still experiencing?

Fix ACPI/SMO Unknown Device in Dell PC Laptops

FYI, the link ee6420 Dell no longer works, here is the link that is working: Hope some of this helps, sorry to not have any more definitive solutions Tony.

Hi Dan, Thank you for your comment. Hope you have a great week. Click here to learn more about this option.

Just a black screen with the mouse only. Misc LinksSoftware Tipstech tipsWork delldownloaddriversmowindows 7. I enjoyed checking out your blog and have added it to the list of RSS feeds that read.

Code 28 on PCI bus ACPI\SMO8800

What driver can I download to fix it? However, there are also cases where there are more than one Unknown Device or problematic devicemarked by a warning yellow symbol! Glad to hear the driver worked for your XPS 15z. This device monitors the acceleration axpi the hard drive, can detect rapid changes in physical position, and is able to secure sensitive parts inside the hard drive that can be damaged or lost due to sudden drops.


This device is not working properly because Windows cannot load the drivers required for this device. Hi Salman, Thank you for your comment, I am very glad that the driver helped! Free-fall sensor — Wikipedia, the free encyclopedia http: Best regards and have a great week, -JD. Have a great week and thanks again for commenting, -JD. To start with the facial recognition software, I believe it is called FastAccess.

I then uninstalled the Free Fall and things worked much, much better; but still a tiny bit quirky, now and then. Accelerometer — Wikipedia, the free encyclopedia http: I am very glad that the driver works well in your Vostro V I have the same above mentioned problem with dell inspiron 14Z Model thanks from your info. Hi Qual, I am glad the post helped, enjoy your nice Dell laptop with Windows 8.

Wallace, Thank you for your kind comment.

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