Sunday, March 7, 2010

How To: Fix Dell Truemobile 355 Bluetooth + EDR on Windows 7

One of the few problems that have really been giving a bad rap to Windows 7
users is the loss of proper Bluetooth Connectivity on Dell Laptops, specifically the Truemobile series. 
The cause is, unsurprisingly, a lack of Dell support – no updated drivers.  In fact, if I recall,
my Bluetooth wasn’t working properly on Windows Vista either, which the computer came pre-installed with. 
Since the problem is Dell Drivers, the solution is fairly simple:  Screw Dell, set it back to the
Windows Drivers.

Open up Device Manager.

style="display: block; float: none; margin-left: auto; margin-right: auto" title="Device Manager"
alt="Device Manager" src="" width="500"
height="365" />

Once there, right click “Dell Truemobile 355
Bluetooth + EDR
” and click “Update Driver Software…

alt="Browse my computer for driver software"
src="" width="500" height="367" />

You then want to “Browser [your] computer for driver software.”

style="display: block; float: none; margin-left: auto; margin-right: auto" title="Let me pick from a list of
device drivers on my computer" alt="Let me pick from a list of device drivers on my computer"
src="" width="500" height="367" />

Then click “Let me pick from a list of device drivers on my computer

style="display: block; float: none; margin-left: auto; margin-right: auto" title="Generic Bluetooth Adapter"
alt="Generic Bluetooth Adapter" src=""
width="500" height="367" />

Select the bottommost
Generic Bluetooth Adapter” and then wait forever for it to install. 
(Yes, this one takes forever for some god awful reason, but it seems to consistently work).

href="">Step 1 - FINISH! src="" width="500" height="367" />

The next step is disabling the “Power Management” feature to turn this device off. 
(Since Dell has crappy driver support, this only helps to cripple the usage of Bluetooth).

click your new “Generic Bluetooth Adapter” once the Device Manager refreshes.

style="display: block; float: none; margin-left: auto; margin-right: auto" title="Generic Bluetooth Adapter
Properties" alt="Generic Bluetooth Adapter Properties"
src="" width="500" height="365" />

Click the “Power Management” tab in the properties dialog, and make sure to uncheck “Allow
the computer to turn off this device to save power
.”  Once you have done that, you
should be good to go!  No more Bluetooth Problems on your Dell =)

style="display: block; float: none; margin-left: auto; margin-right: auto" title="Uncheck "Allow
the computer to turn off this device to save power"" alt="Uncheck "Allow the computer to
turn off this device to save power""
src="" width="414" height="461" />

In this demonstration, I used a Dell Inspiron E1705, though this
problem plagues many, many other Dell Laptops running Windows 7.


  1. Thank you! That was so annoying having to disable and reenable the dell driver.

  2. Hey thanks alot, solve my bluetooth problem on my inspiron 6400 after upgraded to win
    7, cheers =)

    pairing with my phone is now a breeze

  3. Thanks !! i was going crazy with my Inspiron 9400 (same as 1705) and a Dell travel BT
    mouse. Problem solved.

  4. THIS WAS A LIFESAVER!!!!!! thanks :)

  5. Thank You very much! I was using a Dell Inspiron 1420, win 7, problem solved

  6. Awesome - this fixed my Vostro 1700 BT problems I've been dealing with ever since I got
    this machine. Thanks so much!

  7. I am not able to Fix the problem for Dell Insiron 1420(Bluetooth Driver)

  8. I am very happy to have found your post, after many hours of trying to fix the problem
    with my Inspiron 1525 with Windows 7 losing the connection to the mouse intermittently. It drove me crazy.

    just applied it now. From what I read here, I won't have to remove and then add my BT mouse two or three
    times a day anymore.

    Thanks very much for the great post!!

  9. fantastic. this problem has upset me for ages. cheers for the assist. Morgan

  10. Thanks for this detailed info. Sure, Dell should learn from this post.. Gud Job :)

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  12. wow wow wow... ranks a lot just fixed my dell xps 1330 now.....

  13. thanks great solution

  14. Excellent note my friend. Thanks a lot!!!
    Why the "Dell support" don't said
    this, and problem resolved!!!!!!

    Thank again

  15. Thanks for this wonderfully clear solution, but I'm afraid it didn't work on my XPS
    M1730. The "wait forever for it to install" bottommost "Generic Bluetooth Adapter" actually takes a second
    only, and after unchecking the power Management "Allow..." box none of my bluetooth devices work (same
    situation as before your fix). Is it possible the generic adapter driver is not installing at all? Or
    could I be leaving something out which is not listed in your fix? I am not computer literate, so I would
    like you to know that after 12 months of trying to get my headphones to work, yours is the first solution I
    have been able to follow; most forums are so filled with acronyms and jargon that I am unable to even begin
    to follow them! Thanks again for the clarity, even if it doesn't work for me:)

  16. Thanks for this post. It solved a problem I had with a bluetooth connection for my
    Galaxy S2 phone with my Dell Inspiron 1520 after after a Win 7 upgrade.

  17. Apologies.  I only happen to know enough about computers in order to be able to really
    truly break them.

    This is simply something I attempted to fix my own problem that
    worked.  I unfortunately have no idea why or how it worked, just that it did.

    Wish I
    could be of more help.

  18. thnx... problem solved :)


  20. Does this work for any more drivers?

  21. Don't know! Try it and find out!
    Navarr T. Barnier
    [email protected]

  22. you all seem to know where to find the microsoft Generic Bluetooth Adapter. I don't
    know how ti find it. Could you help me?
    Thanks, Thomas

  23. Thank you, i had 3 days fighting with this problem

  24. Alfredo A RodriguezJune 2, 2012 at 4:32 PM

    You sir are the best, thank you!

  25. Im going to try it on my inspiron 1720, Every time it boots up i have to pair the
    bluetooth mouse again.

  26. Dipl. Ing. Robert KarrerJuly 23, 2012 at 1:07 PM

    God damn! I fought for 2 (two!) years with this problem. DELL Bluetooth mouse always
    disconnected after starting from hibernate modus (Windoof Vista 32 bit), Now, let see if this problem is
    handled now.

  27. NOT DONE!!!!

    hi that was such a big issue
    unfortunately, still is ! i cant get over with it with all the things tried out for my dell XPS M1530.
    Please help.
    Right clicking on 'settings' in task bar doesn't open up setting, no devices found,
    no device list updation it does nothing and has been 14 months by now!

  28. You need to force your 1530 to see the bluetooth... use dell's patch R159805 (for a
    different model computer, but it works wonders!) That will get rid of the annoying press Fn+2 error you keep

  29. Oops.. ok its

  30. I realize this thread has been inactive for a few years, but when I try this solution
    the "bluetooth radios" option doesn't even appear in my device manager. Any ideas why this might be