Big Sur Wireless Keyboard Issues

I also use an old battery non-numpad magic keyboard which stopped working when I updated to Big Sur. Today I just "reset my bluetooth" (hit Shift-Option and click the Bluetooth icon in the menu bar > Click “Reset the Bluetooth module." > hit ok. then restart the comp. Then I turned the keyboard on and off a couple of times and it finally appeared and I was able to connect to the macbook pro.

Bluetooth lag is the culprit, I suspect. Cycling the keyboard on and off fixed it for me. It gave me an excuse to clean the keyboard as well.

Would help if you put what version of MacOS you are running.

I believe it was 11.2.1 that appeared to have mostly fixed the problem for me.

I had to wire my magic trackpad and use a wired keyboard (had old magic keyboard that does not plug in) but since the 11.2.1 upgrade, I've been good except a couple times and only for a few seconds... does appear to be some sort of lag problem they have with bluetooth but again, appears to be pretty much fixed.

That being said, every system is different so would be interesting to see what version of the OS you are running.

I’ve got an older Apple magic keyboard (battery slot) also w/o the numerical pad that I originally encountered this issue with. Later got the latest magic keyboard with numerical pad but also saw the same issues.

Mainly seeing lag and stuck letters...I’ll type a whole word and have it show up with some chars repeating 1-2 sec later. I’ve got a ticket open with Apple and they’ve asked me to see if the same issue occurs in Safe Mode.

I was having the same issue too. Ironically Apple is not aware of this forum because they sent me a replacement keyboard, thinking it was a hardware problem. The problem still persisted. I am currently running Catalina (for this and a problem with my external display not being recognized upon wake from sleep); both problems went away. Both look like Big Sur issues. Fix these problems Apple!

The latest version of Big Sur appears to have fixed it for the most part for me... it's been a couple weeks with this version and I only see the lag for a few seconds maybe once a day at the most. And it's only been the magic trackpad that I notice it, not the keyboard this time.

Mac OS 11.2.1

Same for me too - started straight after upgrading to Big Sur - zero problems before.

Turning the keyboard off and on again does solve it for a while, but it's not acceptable for a £3000 laptop and a £150 keyboard!

I have the same issue on a brand new i9 10-core iMac 27" with the magic keyboard and trackpad. That enough of us are having this across several bluetooth modules it indicates that isn't the bluetooth module, this is a Big Sur issue. The trackpad is unusable without plugging it in, the keyboard lag is at least tolerable compared to the trackpad lag.

That this issue is marked as "solved" is a bit insulting. This requires a bit more of a solution than "force restart your BT" every few hours.

Well, I have the magic keyboard with numeric keypad, the track pad and Magic Mouse.

The mouse and track pad once in a while loose connection for a few seconds, that's all. The keyboard starts to slow down and delays the input, then the error key start to autorepeat after pressed once.

Shutting off an on will cure the problem 'till next occurrence.

I've never seen this behavior prior to Big Sur.

this seems to be working fine now as of 11.2.1

Got to agree with the above and hoping to bump this again. It’s definitely a Big Sur issue. I opened a ticket and was told to continue my daily activities in safe mode in order to see if the BT keyboard issue persist. This ticket should be open.

Same issue with mine. After switching the keyboard off and back on, it works for a while. This issues showed up a couple of hours after the upgrade.

I have an old battery non-numpad magic keyboard which has had problems since Big Sur upgrade... tried everything listed and it might go for a couple days before experiencing problems. Same as most here, it starts lagging and then it starts throwing chars that I'm not typing, etc... when this happens, my Magic Trackpad 2nd gen quite often starts getting laggy as well... I have even seen the trackpad start lagging without the keyboard on and using a usb keyboard but not near as often as the keyboard... the keyboard is not usable. I have seen all kinds of other issues with bluetooth devices such as audio as well... a logical guess would be that Big Sur has some major bluetooth issues... and has had them since beta... but apparently Apple isn't smart enough to find and fix the problem... gg Apple. fyi, my mbp 16" is the latest model too... shame on you Apple for letting this happen.