Bluetooth not working in Dell Inspiron 1525 [Solved/Closed]

Ask a question raju - Last answered on Apr 15, 2017 at 10:54 AM by omni
bluetooth device not working in my dell inspiron 1525 laptop. while installing bluetooth drivers for windows vista it is asking me to press fn+f2 key to enable bluetooth but after using fn+f2 key also it is not working. can anybody please help me to resolve this...
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Hi buddies,

It look hard to do but it isn't. If you do what I say you'll solve your problems with bluetooth at Inspiron 1525 runing Windows 7 easily.

a. Download the driver at
- 1. Go to
- 2. Click on the link "Drivers & Downloads" in the end of the site.
- 3. Select your model ("Laptops", "Inspiron Laptop", "1525") and confirm it.
- 4. Click on Network.
- 5. Download the "Wireless 355 Bluetooth Module (Bluetooth 2.0 + EDR)"
- 6. Save the file "R140135.exe".

b. Install the driver:
- 1. Execute the file "R140135.exe".
- 2. Open the folder "C:\dell\drivers\R140135\3100_216".
- 3. Execute the file "Setup.exe".
- 4. When the driver ask you to active your Bluetooth antena, click in "Cancel.
- 5. Open the folder "C:\dell\drivers\R140135\3100_216\Win32"
- 6. Execute the file "Inst.exe".
- 7. Click in "Next" button to begin the installation.

Note: When the software ask you to active the Bluetooth DO NOT CANCEL.

- 8. Open the folder "C:\Program Files\WIDCOMM\Bluetooth Software"
- 9. Execute the file "BTTray.exe". The icon will appear in the system tray (next the clock).
- 10. Click with the right button in Bluetooth icon and turn it on.
- 11. The installation will continue automatically.
- 12. Click in "OK" button to finish

That is how I solve my problem with my Dell Inspiron 1525 runing Windows 7. It's working perfectly.

I hope it help you guys.
Was this answer helpful?  
Sachu- May 11, 2013 at 01:43 AM
Thank you. This post helped me.
Lubo- May 11, 2013 at 04:21 PM
Thanx a lot Verediano- I tried it with Vista and back to normal :) well done
suyash- Jun 9, 2013 at 02:57 PM
Hey you are a life saver ... thanks a lot!!!
omni- Apr 15, 2017 at 10:54 AM
Thank you, I was trying from a very long time but this helped me and it took hardly sometime to get it done.

Thanks a ton :)
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When you down-grade from Vista to XP, it deactivates Bluetooth. In order to get it back, you need to run this utility Dell provides that enables it again. You can get it here:

I found this answer over here:
pipe09- Jul 17, 2009 at 02:58 PM
thanks you so much, with your help I fix the bluetooth driver problem
fergoiz- Sep 8, 2009 at 10:28 PM
thanks so much I didnt have xp but I had the new windows 7 rc and bluetooth hasnt been working for about 7 months or so.
c- Nov 16, 2009 at 12:15 PM
god bless u buddy keep helping people like this.
Nathan Wiley- Jun 5, 2010 at 03:37 PM
That download from Dell worked perfect on Windows 7 --- LOVE IT... Works super good on my Droid!
Shankar- Jun 8, 2010 at 01:25 PM
Thank you great of you. I solved my problem....
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try this, u will find ur problem solved, after downloading the file, you will be asked to switch on bluetooth, then click fn+f2 to switch on, you will find wifi on. f2 enables both wifi and bluetooth. now try this with the above information.

Release Date: 5/16/2010
Version:, A02
Download Type: Application
File Size: 61 MB
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i'm having the same problem as SK.
i have dell insipron 1525 and the bttray.exe isn't showing on my taskbar.
i followed all the steps in post 29 also.
nothing seems to work and WIDCOMM is still asking me to enable bluetooth but I don't know how!
please help!
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hello bro
just check your bios settings.
And also check that bluetooth device is installed I your bios setting or not.
if not then check bios software from dell site and download them.
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Wow! I've been looking into this on and off for weeks. I have never seen that utility, but bam. I ran it, and the bluetooth light magically went on, didn't even have to reboot or anything! This is great information, thank you!
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Wow Amazing... this file was missing from my laptop and so I was not able to activate bluetooth. Thanks Lukas. It did wonder for me.
Mahmoud- Dec 2, 2009 at 03:16 AM
I downloaded the software but it seems to have a problem and I couldn't install it.
Mine is Dell Inspiron 1545
My system is Windows XP
Lukas- Dec 2, 2009 at 04:52 AM
This might be beacause of you laptop model. Mine is inspiron 1521.
Mahmoud- Dec 2, 2009 at 07:19 AM
Do you mean that my model doesn't have internal bluetooth ...
Actually I began to believe it.
But a minute ago I logged to the bios and I found that there is a bluetooth an it's enabled.
Lukas- Dec 2, 2009 at 07:24 AM
No, I mean that you did not managed to install the software because it is not compatible with you laptop.
Mahmoud- Dec 2, 2009 at 07:49 AM
Thank you for reaction agWould you please lead me to the compatible installation
I downloaded bluetooth WIDCOM from Dell official site
But the installation of BT Radio on.
Thanks again for your patience
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Mithila Raghu - Jan 29, 2010 at 08:24 AM
Hello Raghu,

Sorry I din reply frm a very long time.. I havnt downgraded frm vista to xp. its xp frm d start. n also I din find d patch.pls can u provide me with a link. I hav already uninstalled d driver n now if I try to install d driver I get d same errror sayin "activate bluetooth button" me out.

Choavn Raghu - Jan 24, 2010 at 11:27 PM
Dear Raghu,

You are an Angel !!!
Have been trying everything to activate my Bluetooth after I re-installed vista but nothing worked. Finally I did what you recommened and it was so simple.
i wonder why no one including Dell Support could suggest this.

Thanks a million
Raghu- Jan 25, 2010 at 02:56 AM
erphan Raghu - Feb 1, 2010 at 10:06 AM
Raghu Bhai I have purchased dell inspiron 1545 I have upgraded to windows 7 from windows vista. I tried several time to install the bluetooth but bluetooth module 365 is asking to activate bluetooth using wireless switch. I tried widcomm aslo but no use. When I go to radio option the message appears that setting is blocked in you bios setup. I have checked bios setup but bluetooth is enabled
Neither I am sure does it have bluetooth module or not? Please help??
nidheesh- Mar 30, 2010 at 03:41 PM
raghu bhai,

sme probs for me also....pls help..
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Hi all,
I have a dell 1520. changed my OS to XP SP3 from Vista. Bluetooth was not getting detected. Installed R159805.EXE from Dell site. And also R140135...
Things are perfect now.

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