UNSOLVED
Inspiron 27-7775 AIO, Bluetooth gone from device manager
We have two Inspiron 7775's and Bluetooth has stopped working on both of them and does not even show up in device manager. The first one happened about a month ago and I thought it was a software or hardware fluke but now the other one has done it too. I have tried everything from going into the bios to re-installing drivers and nothing seems to work. I don't even have a yellow exclamation marked device within the windows device manager. It's like Bluetooth never even existed on our Inspiron 7775. I have even swapped out the wifi / bluetooth card for an intel one I had lying around and bluetooth is still not there (yet wifi works fine). Anyone else hear of this issue and know of a fix? I'm an IT manager so I'd like to think I'm usually pretty good in fixing these things but this issue has me stumped.
Thanks in advance!
6952
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Posted March 26th, 2018 11:00
If you are using Win 10, go to Settings, Devices and see if you can add a Bluetooth device. Don't know if that is the issue, but one thought.
BTW, I'm a retired LAN/WAN Network Manager
Inspiron 16 5630 Laptop and WD22TB4 Docking StationSelf-built desktop for recording studio application6937
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Posted March 26th, 2018 12:00
@Ryan_dbwrote:
I just completely uninstalled the WiFi and Bluetooth drivers and reinstalled a second time just to be sure. No luck. WiFi works great, Bluetooth is not there at all, both in device manager and windows 10 settings. Any other thoughts? Is it possible that this is bios related somehow?
Try this one then:
http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=CR08X
Sometimes, these driver packages are set to update the firmware on the cards themselves... then update the drivers.
You can look in the BIOS for a "wireless disable" option, but I don't think an Inspiron would have such an option.
Maybe you just got some bad cards and they wore-out.I think they cost like $5 to make.
Dell Rockstar
Microsoft Windows and Apple iOS Developer (Retired)
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0
Posted March 26th, 2018 12:00
My guess would be drivers (or firmware of wireless-card).
Verify the Bluetooth is provided by wireless card on this Dell model.
Please provide exact model number of Wireless card and it's form-factor.
Dell Rockstar
Microsoft Windows and Apple iOS Developer (Retired)
- Like many of you, I can appreciate a good game-engine.
- I answer questions here, but I'm not a Dell employee.
- Consider giving posts you like a "thumbs-up"
- Posting models-numbers and software versions speeds trouble-shooting.
- Click "Mark as Accepted Answer" on any post that answers your question best.6943
0
Posted March 26th, 2018 12:00
I just completely uninstalled the WiFi and Bluetooth drivers and reinstalled a second time just to be sure. No luck. WiFi works great, Bluetooth is not there at all, both in device manager and windows 10 settings. Any other thoughts? Is it possible that this is bios related somehow?
6945
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Posted March 26th, 2018 12:00
@Ryan_dbwrote:
I've opened up both machines and the wireless / Bluetooth modules are properly seated and screws are there. Again, Bluetooth used to be installed and working on both PC's about a month ago. We were even using Bluetooth keyboards and mice with them. The drivers are still installed as well. Both systems have the Qualcomm QCA61x4A wifi / Bluetooth module. BIOS is also up to date on both.
Thanks again for the quick replies.
If Windows-10 64bit is installed, try uninstalling the old driver, reboot and then clean-install this driver:
http://www.dell.com/support/home/us/en/4/Drivers/DriversDetails?driverId=JYT40
Dell Rockstar
Microsoft Windows and Apple iOS Developer (Retired)
- Like many of you, I can appreciate a good game-engine.
- I answer questions here, but I'm not a Dell employee.
- Consider giving posts you like a "thumbs-up"
- Posting models-numbers and software versions speeds trouble-shooting.
- Click "Mark as Accepted Answer" on any post that answers your question best.6935
0
Posted March 26th, 2018 12:00
I've opened up both machines and the wireless / Bluetooth modules are properly seated and screws are there. Again, Bluetooth used to be installed and working on both PC's about a month ago. We were even using Bluetooth keyboards and mice with them. The drivers are still installed as well. Both systems have the Qualcomm QCA61x4A wifi / Bluetooth module. BIOS is also up to date on both.
Thanks again for the quick replies.
6492
1
Posted March 26th, 2018 14:00
I had the same issue with 5675. Was there one day and then was not. I think its due to the recent qualcomm march driver update. Since I installed that driver the Bt was gone. I tried all the options I know. Then did a win10 reset. Fixed the issue. But If you go withthe reset, Some of your programs will be uninstalled6922
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Posted March 26th, 2018 14:00
I tried that one as well. I truly do not think it is a driver issue as then there would at least be something showing up in device manager. Is there a repository anywhere to check on the firmware version of the card? And no there isn't any option (at least in the GUI) to disable or toggle wlan / Bluetooth in the BIOS.
4554
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Posted March 26th, 2018 14:00
Well, then it's bad cards or bad motherboards (you said you have the latest BIOS).
Are you under warranty? Do you want to deal with motherboard swap?
If you are using wired ethernet ... I would be tempted to:
- remove those bad mini-pcie wireless cards
- Install this $12 Kinivo USB Bluetooth dongle- works great in Win-10/64bit drivers auto-load
- it's antenna ends up outside machine where it belongs
Dell Rockstar
Microsoft Windows and Apple iOS Developer (Retired)
- Like many of you, I can appreciate a good game-engine.
- I answer questions here, but I'm not a Dell employee.
- Consider giving posts you like a "thumbs-up"
- Posting models-numbers and software versions speeds trouble-shooting.
- Click "Mark as Accepted Answer" on any post that answers your question best.
speedstep
11 Legend
•
46969 Posts
6951
0
Posted March 26th, 2018 11:00
I had a unit where the bluetooth module was installed but the screw to hold it in was missing. Eventually the module came out of its socket. Putting the screw in fixed it. USB bluetooth modules however are easy to use and also fix this issue.
http://topics-cdn.dell.com/pdf/inspiron-27-7775-aio_service-manual_en-us.pdf