Chosen Solution
I am running MacOS Catalina 10.15.5 on my 2019 Macbook Pro. Often, when I open my laptop, the keyboard and trackpad are unresponsive. If I don’t close the laptop, a window will pop up after 15-30 seconds that says “Bluetooth keyboard setup. There isn’t a keyboard connected.” I’ve tried resetting the SMC and NVRAM and rebooting in safe mode, to no avail. One thing to note is that the fingerprint reader/power button still works even if the rest of the keys on the keyboard don’t—I can triple-click the power button to open the accessibility options. I’m pretty certain this is a software issue—maybe to do with the T2 chip—because waiting usually solves the problem. Meaning, when I open the lid and nothing works, I can wait a few seconds (sometimes one or two minutes), and then everything is back working. Or I have to close my laptop for several seconds, and when I open it back up, the keyboard and trackpad usually work again. This problem consistently happens, so if you have a solution it would be much appreciated.
Nope! You have a hardware issue! Your’s will be the third one I’ve seen with this failure, you need a new logic board. Hopefully your system is still under warranty get to an Apple Store ASAP!
Strangely, I have quite the same problem on a mid-2013 MBAir, and that occurred immediately after the update to 15.6.0 and its EFI update… hardware problem? To note is that the trackpad and keyboard both work fine for boot volume selection, and in hardware test. Would someone stand up and still pretend it is an Hardware issue, maybe the low level working of the USB devices takes another route when the OS is running?
I’ve been pestering apple support as i had this issue on my 2020 13” mbp and they still havent taken it for service they have gotten me to reset smc and nvram more than 5 times.