Bluetooth not working

CaioMartins

Hi everyone, 

I have an Acer Swift 5 SF514-52T since February 2019. 
However, in the past weeks, I am facing an enormous problem with the Bluetooth Driver.
It often disappears, then I have to go on Device Manager > show hidden drivers > uninstall everything there > restart > install drivers again.
But this time it did not work! When I try to install the driver again it says that there is an installed and up to date driver. 
I tried many things such as:

DISM /Online /Cleanup-Image /CheckHealth and HealthRestore on Prompt Command. 
My Bluetooth Support Service is set as automatic already. 
Troubleshooting does not detect any Bluetooth on my laptop and as I said I am unable to reinstall or uninstall anything as the driver does not show on Device Manager (even if I choose hidden drivers).

I tried the hard restart on the laptop as well.

I honestly do not know what else to try.

Is there anyone who could help me?

Thank you a lot!

Commodore_1995#

If this problem occurred after some windows update, try to restore to a date before the problem.

StevenGen

First, try to press F3 key or F3 & Fn keys together, to activate your WiFi/Bluetooth physically. Does your SF514-52T have the Intel Dual-Band 7265, Bluetooth 4.1? If so then try to open the back and take the card out and make sure that its seated properly and the arial wires (Black and white) are plugged in properly and are not lose. If that doesn't help then do the following: 

Intel Dual Band Wireless AC 7265 Problems

• A major problem that many have reported is with the Wi-Fi driver. Thankfully, you can find the solution for this yourself. The moment you install it, you must ensure that all the drivers are updated. If not, you should do it immediately. This will solve your problems.
• However, if you still face disconnection problems, you may want to turn off power saving mode by going into Control Panel and choosing Power Options under the Hardware and Sound option. In Power Options, Edit Plan Settings. Choose Advanced Power Settings and Select Wireless Adapter here. You will see Power Saving Mode. Set the options in this to maximum performance.
• You may also want to set all the advanced settings of the Intel Dual Band Wireless AC 7265 by going to Device Manager > Network Adapters > Intel Dual Band Wireless AC 7265 > Properties (Right click). A point to note here is that you must use 2.4 GHz for a better connection. All the settings in the properties must also align with the settings of the router you are using.
• You may also want to try setting Roaming Aggressiveness to Lowest and setting the AD HoC QoS Mode to WMM Disabled.

CaioMartins

egydiocoelho said:

If this problem occurred after some windows update, try to restore to a date before the problem.

Hi Egydio, thank you but it did not occur after an update. Thus, I don't think that restoring will help too much

CaioMartins

StevenGen said:

First, try to press F3 key or F3 & Fn keys together, to activate your WiFi/Bluetooth physically. Does your SF514-52T have the Intel Dual-Band 7265, Bluetooth 4.1? If so then try to open the back and take the card out and make sure that its seated properly and the arial wires (Black and white) are plugged in properly and are not lose. If that doesn't help then do the following: 

Intel Dual Band Wireless AC 7265 Problems

• A major problem that many have reported is with the Wi-Fi driver. Thankfully, you can find the solution for this yourself. The moment you install it, you must ensure that all the drivers are updated. If not, you should do it immediately. This will solve your problems.
• However, if you still face disconnection problems, you may want to turn off power saving mode by going into Control Panel and choosing Power Options under the Hardware and Sound option. In Power Options, Edit Plan Settings. Choose Advanced Power Settings and Select Wireless Adapter here. You will see Power Saving Mode. Set the options in this to maximum performance.
• You may also want to set all the advanced settings of the Intel Dual Band Wireless AC 7265 by going to Device Manager > Network Adapters > Intel Dual Band Wireless AC 7265 > Properties (Right click). A point to note here is that you must use 2.4 GHz for a better connection. All the settings in the properties must also align with the settings of the router you are using.
• You may also want to try setting Roaming Aggressiveness to Lowest and setting the AD HoC QoS Mode to WMM Disabled.

StevenGen said:

First, try to press F3 key or F3 & Fn keys together, to activate your WiFi/Bluetooth physically. Does your SF514-52T have the Intel Dual-Band 7265, Bluetooth 4.1? If so then try to open the back and take the card out and make sure that its seated properly and the arial wires (Black and white) are plugged in properly and are not lose. If that doesn't help then do the following: 

Intel Dual Band Wireless AC 7265 Problems

• A major problem that many have reported is with the Wi-Fi driver. Thankfully, you can find the solution for this yourself. The moment you install it, you must ensure that all the drivers are updated. If not, you should do it immediately. This will solve your problems.
• However, if you still face disconnection problems, you may want to turn off power saving mode by going into Control Panel and choosing Power Options under the Hardware and Sound option. In Power Options, Edit Plan Settings. Choose Advanced Power Settings and Select Wireless Adapter here. You will see Power Saving Mode. Set the options in this to maximum performance.
• You may also want to set all the advanced settings of the Intel Dual Band Wireless AC 7265 by going to Device Manager > Network Adapters > Intel Dual Band Wireless AC 7265 > Properties (Right click). A point to note here is that you must use 2.4 GHz for a better connection. All the settings in the properties must also align with the settings of the router you are using.
• You may also want to try setting Roaming Aggressiveness to Lowest and setting the AD HoC QoS Mode to WMM Disabled.

Thank you Steven. I only did not try opening my laptop. However, the other options did not work on solving the Bluetooth connection, unfortunately. 

Commodore_1995#

Have you tried to reset the battery?

https://www.youtube.com/watch?v=NfhgnxUJoZo&list=FLVBqwtBw09_Z9tXo1Injakw&index=7&t=0s

Also, have you opened a notebook to check the suggestion of colleague stevengen? https://www.myfixguide.com/acer-swift-5-sf514-52-disassembly-m-2-ssd-upgrade-options/

CaioMartins

Thank you very much!!
In the end, I got a solution. The only thing that worked was ignoring the Bluetooth Driver available at Acer which is lower than version 21. And downloading Version 21.9 from https://downloadcenter.intel.com/download/29538/Intel-Wireless-Bluetooth-for-Windows-10