Mac Mini m1 bluetooth problems

Thank you once again. But... Again, you are missing the point...

Your examples are describing clearly defined and repeateable hardware defects in third party (i.e. non Apple) equipment.

This is all to do with an entirely Apple "system" that is sometimes fully working (i.e. no apparent defects), which then displays very erratic behaviour which is sometimes inconsistent from one person's system to another.

If you take the time to read back all of the previous pages on this, you will see that many have replaced equipment:

• Some have replaced keyboards - to no effect.
• Many have replaced mice - to no effect.
• Some have even replaced Mac mini's - to no effect.
• Some have got success by turning off Wifi - but this is not a solution, it just hides the underlying problem.
• Some have found success by forcing the systems to use 5GHz wifi - but again, this is not a cure for the problem - It's just using a '"workaround" to avoid running into the problem. And not everyone may be able to force 5GHz.
• Some have even completely reset their systems and Yahoo! it all works - for about two the three days - and then it stops working again.

All of these "helpful" suggestions, to plug it in, to use something else etc., are a bit like suggesting I use the back seat of my car to carry luggage, simply because the central locking system will not open the trunk.

What we all need, is for the basic functionality to be met. And to do that, Apple must first acknowledge that their users have a problem, that the problem can be described and can be reproduced. Then - hopefully - the problem can be determined and fixed.

I watched a youtube video that tells us to hold "shift + option" and click the Bluetooth icon, we will see an option "factory reset all connected Apple devices". Click that option.

Also, I changed my wifi router from 2.4 GHz to 5GHz, the connection issue seems gone...my devices haven't disconnected again

Hello Sunden5 and welcome to Apple Support Communities. It appears you are having some difficulty with Bluetooth connectivity on a new M1 mac mini.

Some users have reported that switching off FileVault at System Preferences > Security & Privacy > FileVault has a positive effect here.

If that does not work for you, reach out directly to Apple Support for additional options.

Contact Apple for support and service - Apple Support

Cheers.

Eventually I turned off 2.4Ghz wifi network in my router, leaving only 5Ghz, and Mouse finally acting normally!

Also I figured out that there are Xiaomi-Philips Eyecare Lamp on my desk and a ceiling Xiaomi lamp also above me. Which are using 2.4Ghz only. I couldn't reconnect them to Xiaomi mobile app, so I'll just wait until Apple fixes this 2.4Ghz bug in Big Sur, and then bring 2.4Ghz back in my router.

While trying to connect these two Xiaomi devices to my 5Ghz network Magic Mouse 2 also lagged and disconnected several times. Which left no doubt that the problem is in 2.4Ghz wifi channels distribution or another interference problem on this frequency.

Thank you @Jay4537! https://discussions.apple.com/thread/252100677?answerId=254114320022#254114320022

Trying to find the root cause ....

Yes, bluetooth and wifi can act in the same frequency band and maybe, we face a frequency interference problem. But a think, not really.Using option/shift and click on the wifi symbol, i can see the wifi act on 5 GHz. If i had a interference problem, i would face permanent Bluetooth problems. But in my case, they are "sporadic".

I've tested a lot of time and see:

• every time i wake up the mac with my mouse, some second the mouse move leaking. after a time, the mouse working as expected
• every time, i click on the menu bar Wifi symbol, or the new control center icon in the menu bar, the mouse move leaking. Same here, after some seconds the mouse moving is stable again
• switching off the wifi and working just with ethernet, no leaks

Example: If i click on the wifi symbol, the menu opening and loads the list of all reachable networks. It seems to me, this action produce a mouse moving delay each time. So i hope, the root cause is a software problem with the new control center in big sur.

Also confirming that today's update did not fix the bluetooth issues w my Mini M1.

• Magic Trackpad2 and keychron k1 keyboard. Both work with two other non Big Sur Macs (MacBook Pro, Mac Mini 2015)
• I have tried the bluetooth module resets, disabling wifi with no success

Support update - yesterday I did go thought the support process and have a case # with a senior support specialist. No resolution obviously but did capture data from my Mini to provide to the engineering teams and anticipate a response within a couple days one way or the other.

It took some time to work through their process however do recommend those of us having this issue to submit your data as well. Maybe we can get a fix soon. Good luck!

I just finished another call with Apple Care. The Apple Care advisor ran a diagnostic data collection tool on my mini, and said it would be sent in a ticket to engineering. She will follow-up with me on Saturday with feedback from that ticket.

This advisor also confirmed what my first advisor told me - this problem is recorded in their internal "emerging issues" database.

I asked her about testing the 11.2 beta. She said that would be OK, but that they can't continue troubleshooting on beta OS versions. If I update to a beta and the problem persists, I would have to downgrade back to 11.1 before they can provide further support.

I noticed that there are quite a few variants of this issue. I thought it may be helpful to find commonalities if we share some basic data on our issues and setups. Here is mine:

• Mac Model: 2020 M1 Mac mini, 8 GB, 256 GB
• macOS Version: 11.1 (20C69)
• USB-A devices: Razer Kiyo webcam
• USB-C devices: Samsung T7 1TB SSD, Mokin USB-C Hub model M0003
• Network connections in use: Ethernet + 5 GHz WiFi (both connected)
• Bluetooth Accessories in use: Keychron K4 v2 keyboard, Apple Magic Mouse 2
• Display: Samsung 43" 4K TV (NU6900) connected via HDMI port on mini
• Issue Description: After using the Mac for some time, the mouse will disconnect, immediately reconnect, then immediately disconnect and stay disconnected until the mouse is turned off and on.
• Frequency of issue: Once per day or less, depending on how long the Mac is used each day.
• Which accessories are impacted by the issue? Just the Magic Mouse 2
• AppleCare informed / support case opened? Yes

Nice work kmerenda!

My new M1 is joining the crowd with the similar issues and I have a call back from support tomorrow...Wednesday.

I had a Starteck USB-A dock connected and removed it and so far no problems today.

Hang in guys and girls...Apple will rise to the occasion!

• Mac Model: 2020 M1 Mac mini, 16 GB, 256 GB
• macOS Version: 11.1
• USB-A devices: Garmin Forerunner 235
• USB-C devices: Western Digital Passport 1 terabyte external drive
• Network connections in use: Ethernet + 5 GHz WiFi (WiFi off)
• Bluetooth Accessories in use: Apple Wireless Extended Numeric Keyboard, Apple Magic Mouse
• Display: Dual Asus 27" 4K Monitors connected via HDMI port and USB-C on mini (Tried to use both USB-C ports but support said that will not work after I bought 2 USB-C connectors)
• Issue Description: Keyboard begins to lag and then add multiple keystrokes after release
• Frequency of issue: Depending on how long the Mac is used each day.
• Which accessories are impacted by the issue?  Keyboard and occasionally the mouse
• AppleCare informed / support case opened? Yes

I experimented a bit further:

• internal bluetooth, internal WLAN: cannot use my Apple bluetooth keyboard or my Logitech bluetooth mouse
• USB bluetooth, internal WLAN: can use my Apple bluetooth keyboard and my Logitech bluetooth mouse (at least no dropout over several days)
• Wired Ethernet connection, internal bluetooth: can use my Apple bluetooth keyboard and Logitech mouse

So it really seems to be some interference between internal bluetooth and internal WLAN, as others have already reported.

Below are Apple’s release notes for macOS Big Sur 11.2: 

macOS Big Sur 11.2 improves Bluetooth reliability and fixes the following issues:

• External displays may show a black screen when connected to a Mac mini (M1, 2020) using an HDMI to DVI converter
• Edits to Apple ProRAW photos in the Photos app may not save
• iCloud Drive could turn off after disabling the iCloud Drive Desktop & Documents Folders option
• System Preferences may not unlock when entering your administrator password
• Globe key may not display the Emoji & Symbols pane when pressed

I just bought a Mac Mini M1 at the beginning of March '21 to use as the main machine in a music studio. I had experienced Bluetooth issues from day one. Needless to say, there are a LOT of connections, wires, hubs, and various other cables running all over the studio. I mention this because there are a lot of potential sources for interference that would be almost impossible to track down.

I turned off WiFi -problems persisted

I turned off the 2.4Ghz band on my router - problems persisted

I turned off FileVault - problems persisted

I turned off Handoff - problems persisted

I reset the Bluetooth Module - problems persisted

I factory reset all connected devices - problems persisted

I unplugged the M1, waited 10 seconds, plugged it back in, waited 5 seconds, turned it back on - problems persisted

I disconnected both USB-A cables - problems persisted

I disconnected the ethernet - problems persisted

At this point, I was really considering just using a wired mouse and dealing with it, or sending it back. Working in Logic with erratic mouse movements is nothing short of maddening.

I was upgrading from a 6,1 Mac Pro which originally had Bluetooth issues prior to various software and OS updates. I had used an Aircable Host XR4 (Bluetooth dongle) with that Mac Pro that solved all of my issues, so I decided to try that with the M1.

Unfortunately, it wasn't recognized when I plugged it in. I tried various ports, hubs, and directly plugging it into the M1. Nothing. The light stayed red and the Bluetooth address was still reporting the built-in module.

On a whim, I thought maybe turning off Bluetooth, plugging in the Aircable dongle, and then turning Bluetooth back on would kick it in to using the Aircable over the built-in module. Outside of some buggy weirdness after turning Bluetooth back on, the Aircable actually worked! FINALLY!

So, you'll need a separate bluetooth dongle and a wired mouse available so you can turn the Bluetooth back on, but the process that worked for me is:

1. Make sure the Bluetooth dongle is disconnected.
2. Make sure "Show Bluetooth in menu bar" is turned on in System Preferences>Bluetooth
3. Check the module's current address (Shift+Option, click the Bluetooth icon). Make a note of this address.
4. Plug in a wired mouse.
5. Turn off Bluetooth.
6. Plug in the Bluetooth dongle.
7. Use the wired mouse to turn Bluetooth back on. (Mine seemed to turn back on when I plugged in the module. Your results may vary.)
8. At this point, I experienced some erratic behavior, so I decided to restart.
9. Restart
10. Check the Bluetooth menu (Shift+Option, click on Bluetooth icon in top bar) for the Bluetooth address. It should be different from the one noted above.

If all went well, the Bluetooth menu should display the new address, which means you're using the new dongle as the Bluetooth controller. As long as the dongle has been connected, it has persisted through multiple reboots.

This completely solved all of my Bluetooth issues, and I can now reliably use the M1 as my every day machine. It's unfortunate that this requires a third party solution to work, but it's possible that future updates may fix whatever interference is plaguing the M1 Bluetooth controller. I have to think it's a hardware issue since the new controller has no issues, but it's possible the built-in module can be tuned with firmware/software tweaks.

But until then, I hope this works for some people who are unable to get a third party bluetooth dongle to work.

I’ve installed remote mouse as well as a Remote Desktop client to prevent serious issues as I have the 1st Gen Magic Keyboard and Mouse so plugging in is not a option, I did find that a app that allows you to unlock your Mac with your iPhone using FaceID called Unlox has the option to reset Bluetooth settings with one click.

The issue remained on macos 11.2. While connecting to Mi mouse, the mouse is disconnected and sometimes it can be recovered by re-pair. But now the connection can not be deleted as below figure.

Follow cryptodome's suggestion, turned-off firewall and restart to see if it can be reproduced or not.

i think, it not a mac mini problem basically, it's more bluetooth itself.

Bluetooth is a point to point protocol. Thinking about the earlier (bluetooth 2.1 or so) implementation, we have to pair two devices and if we want a new connection, we have unpair and pair again.

Im my case, i have seen same problem, while migrating from my old iMac to my new mac mini:

1) switch off my old iMac and install the new mac mini, bluetooth connection works fine, because in the state of installing the system all bluetooth devices are new and will be paired.

2) switch off the new man mini, switch on the old iMac (to erase data and clean), the old iMac didn't find keyboard and mouse. I have to switch off mouse and keyboard and switch on again (new pairing) and the iMac find his old comrades as new devices.

3) after all, switch of the iMac again and switch on the new mac mini ... the same. The new mac mini didn't find the keyboard and mouse. Interesting, switch off/on the mouse and keyboard for reconnecting didn't work. My solution: connect the keyboard and later the mouse with the lightning cable to the mac mini usb port (if we wan't to load the battery), the bluetooth device will be found.

Now, both devices working perfect.