Turn off Bluetooth (completely) T520 running Windows 10

[JayNYC]

Hi. T520 running Windows 10 Pro. It's a clean install of Win10Pro, does not include any of the Lenovo cruft except the System Interface Foundation driver. How do I fully and completely turn off Bluetooth? I don't see anything in BIOS. In Device Manager I can disable it, but the indicator light remains lit. Thanks for any guidance. (PS. I don't want to turn off WiFi, so the hardware switch doesn't solve the problem as it only turns them both off)

[RealBlackStuff]

https://support.lenovo.com/jp/en/solutions/ht500881

[JayNYC]

https://support.lenovo.com/jp/en/solutions/ht500881

@RealBlackStuff Tried that, tried switching Bluetooth off, but the indicator light (green LED) is still lit up.

[ajkula66]

You *could* try installing Power Manager and Access Connections - no clue on how reliably these will run under W10 - and then use Fn+F5 to selectively turn off the BT.

Good luck.

[dr_st]

Windows 10 has 'Blueooth Settings' menu (just open start menu and start typing). What's the Bluetooth status there?

[JayNYC]

Windows 10 has 'Blueooth Settings' menu (just open start menu and start typing). What's the Bluetooth status there?

@dr_st even when the Windows 10 Bluetooth setting (switch) is OFF, the green bluetooth LED is still lit.

Was hoping there was a way to fully turn off Bluetooth and the LED itself with some type of simple script or toggle.

[hhhd1]

TPFanControl software can completely turn off bluetooth, right click on the icon in status bar, this is on windows 8.1 though.

not sure if it persists after restart or not.

[JayNYC]

TPFanControl software can completely turn off bluetooth, right click on the icon in status bar, this is on windows 8.1 though.

not sure if it persists after restart or not.

@hhhd1 Well, you are right. TPFanControl does indeed turn off Bluetooth and the LED indicator, even on Windows 10! You are also correct that it does not persist after restart (sleep/resume). I emailed the author and he confirmed there is no way to set Bluetooth off from the .ini file either (he also implied TPFanControl is no longer under development). So right now I have to manually turn off Bluetooth each time. I wish someone knew what the actual machine code was to deactivate Bluetooth and the LED light and could make a script that does this, and could run it inside task scheduler so that upon wake/resume/restart it always turns off. As a non-developer, I'm thinking my only option would be to make an AutoHotKey compiled program that interacts with the TPFanControl GUI, right clicks the icon, left clicks on Bluetooth, etc. but that's pretty inelegant.

[RealBlackStuff]

Remove the palmrest, under which you'll find the BT-module.
Remove that, problem solved.

[fmcart]

My T520's green Bluetooth light was also on and turning it off in the OS had no effect. I finally went to BIOS and poked around. Nothing until I went to Security, Why bother going there? Because I'd been everywhere else.

And that's where I found it, in the last place I thought to look. It was under I/O Port Access.

My green light is now off.

[JayNYC]

My T520's green Bluetooth light was also on and turning it off in the OS had no effect. I finally went to BIOS and poked around. Nothing until I went to Security, Why bother going there? Because I'd been everywhere else.

And that's where I found it, in the last place I thought to look. It was under I/O Port Access.

My green light is now off.

@fmcart going to check that out now.

[JayNYC]

@fmcart

THANK YOU

holy cow, I can't believe it was right in the bios all along.

and all the more impressive, you joined this forum just yesterday!

thank you thank you thank thank you!!
https://content.screencast.com/users/ja ... PC-83c.jpg

[fmcart]

You're welcome. The funny thing is, my T60 didn't have bluetooth and I always wanted it. But when I got the T520 I didn't have a BT device, so I spent quite a while trying to turn off the green BT LED.

The T520 lacks Windows 10 support but perhaps because of that they can be picked up fairly cheap. And they're good for dual-booting - I've got w10 + Linux on this one.

[weatherman22]

Apologies for resurrecting an old thread, but I had similar issues with my X220. The bluetooth LED was on, but the Fn F5 combo did nothing. I could disable the device in Device Manager but the LED stayed on.

Finally I found the Hotkey folder within Lenovo Program Files, and executed TpFnF5.exe and that brought up the Lenovo radio switch dialog box which the hotkey should have done. From there I just disabled bluetooth and the LED went off...

wm