Bluetooth not working Aspire A315-21

Hongz
Hongz Member Posts: 29 Enthusiast WiFi Icon
edited April 2021 in Aspire Laptops
The Bluetooth of my Aspire A315-21 worked fine for a while, then started to disappear (i.e.  I cannot turn it on).  Rebooting does not help.  Neither does removing the USB device and scanning for new devices.
I have downloaded the latest Intel Bluetooth Driver and Atheros Bluetooth Driver.  I have installed, uninstalled, reinstalled both of them to no avail.    If I remember correctly,  repairing the Intel Bluetooth driver helped once, only once.
I have largely given up and am using an awkward USB Bluetooth adapter to get by.  I am posting here just in case someone has had the same issue and found a trick to fix it.

Best Answer

  • Hongz
    Hongz Member Posts: 29 Enthusiast WiFi Icon
    Answer ✓
    I have finally found a reliable solution.  If reinstalling, updating drivers, rebooting the laptop, etc. all fail, the following nuclear option always works:
    1. Device Manager > View > Show hidden devices
    2. Delete everything under Bluetooth.
    3. Install Bluetooth Driver (NFA435) by Atheros.
    4. Reboot the computer

Answers

  • billsey
    billsey ACE Posts: 34,291 Trailblazer
    What does Device Manager say about the Bluetooth? Does it have any errors or warnings on other devices?
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • Hongz
    Hongz Member Posts: 29 Enthusiast WiFi Icon
    There is no Bluetooth item in Device Manager. 

  • billsey
    billsey ACE Posts: 34,291 Trailblazer
    You have an unknown USB device. Bring up Properties; Details; Device Instance Path and let us know what it is.
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • Hongz
    Hongz Member Posts: 29 Enthusiast WiFi Icon
    Here are some properties.  Thanks a lot for lending a hand here.



  • billsey
    billsey ACE Posts: 34,291 Trailblazer
    In the Events tab, could you scroll down to the end? I believe that top entry if for a Nokia 8 phone... So likely we are looking at Bluetooth.
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • Hongz
    Hongz Member Posts: 29 Enthusiast WiFi Icon
    I do not know what happened, but Bluetooth is working at this moment.  I have not done anything to try to fix it.  I was using a USB Bluetooth adapter all the time.  After I unplugged the USB adapter for taking a screenshot of the Device Manager per your suggestion, I found the built-in Bluetooth was working. 



    This intermittent working happened before.  I suspect that it will stop working again.
    The dysfunctional USB device seems to have disappeared.
  • billsey
    billsey ACE Posts: 34,291 Trailblazer
    So we can assume the issue is with that USB device, perhaps one of the Microsoft updates broke it, then another fixed it... That wouldn't be the first time. :)
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • Hongz
    Hongz Member Posts: 29 Enthusiast WiFi Icon
    I have checked the update history but did not see any updates installed in the past few days except regular definition updates for Windows Defender.
    I will report back here if the Bluetooth breaks again. 
  • Hongz
    Hongz Member Posts: 29 Enthusiast WiFi Icon
    Answer ✓
    I have finally found a reliable solution.  If reinstalling, updating drivers, rebooting the laptop, etc. all fail, the following nuclear option always works:
    1. Device Manager > View > Show hidden devices
    2. Delete everything under Bluetooth.
    3. Install Bluetooth Driver (NFA435) by Atheros.
    4. Reboot the computer

  • George-Acer_Retired
    George-Acer_Retired Member Posts: 64 Devotee WiFi Icon
    Hi Hongz

    The thread will be closed due to you got a solution for the issue, if you still have problems with your computer, I invite you to open a new question by clicking "Ask A Question" button at the top right-hand side of the site, so the users of the Acer community can guide you. 

    Thank you for your interest and participation in the Acer Support Forums,

    Regards,
    Acer-George
This discussion has been closed.