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Bluetooth just died
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Sb125 View Drop Down
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Joined: 22 Mar 2025
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Sb125 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 2025 at 6:10am
Originally posted by gersones gersones wrote:

For those who happen to face the same issue, I hope this helps you:

You'll find some attempts to fix this in Google/Youtube but none will work (maybe I just didn't find the right answer).

The steps I did that solved it:
1. In Windows Device Manager, uninstall the problematic USB device/driver;
2. Uninstall the BT drivers;
3. Restart and go into BIOS/Setup;
4. Find where you enable/disable onboard components and disable BT (I disabled the main wireless controller, so I disabled BT and WiFi);
5. Let the computer boots Windows normally then reboot again;
6. Go into BIOS/Setup and re-enable BT;
7. Boot into Windows and reinstall BT drivers;
8. If the it doesn't appear in Device Manager, reboot;
9. Check if the BT appears in Device Manager (but you'll know it came back when you see the BT icon in the taskbar).

The headaches are gone.

Regards



Can confirm this fixed the issue for me, thanks!
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M440 View Drop Down
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Joined: 12 Jul 2023
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Points: 4505 		Post Options Post Options   Thanks (0) Thanks(0)   Quote M440 Quote  Post ReplyReply Direct Link To This Post Posted: 24 Mar 2025 at 2:06pm
That's why I use Linux - it has fewer problems. If you ever encounter an issue, you'll be fixing the problem directly rather than using a workaround.

For example, I wrote a systemd service to disable the Mediatek MT7922 driver in my laptop when the PC goes to sleep, which solved all the card's issues without needing to restart my PC.

edit:
not to mention i dont have to look for drivers downloads, because these are included in the kernel/firmware




> cat mt7921e-sleep.service

#/etc/systemd/system/mt7921e-sleep.service
[Unit]
Description=mt7921e sleep
Before=sleep.target
StopWhenUnneeded=yes

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/sbin/modprobe -r mt7921e
ExecStop=/sbin/modprobe mt7921e

[Install]
WantedBy=sleep.target



Edited by M440 - 24 Mar 2025 at 2:16pm
asrock b650m-hdv/m.2, ryzen 7700x@85watt, arch/kde
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sakanaboy View Drop Down
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Joined: 29 May 2025
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sakanaboy Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2025 at 11:18pm
I discovered something interesting: Mediatek MT7922 on my X670E Steel Legend suddenly stopped being detected in Windows, but when I booted into Linux it was recognized immediately and worked flawlessly. Good grief...
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