I have a 2016 MacBook Air and after logging in the keyboard and trackpad do not work. The Bluetooth assistant pops up looking for a wireless keyboard and mouse. The only button that works is the power. All buttons seem to work along trackpad before logging in.
Any help is greatly appreciated.
Restart the computer holding down the command - option/alt - P - R keys before the gray screen appears. Continue to hold until you hear the startup chime for the second time.
Try a SMC reset. The article covers when this is required, but doing this will not affect anything.
Hi Eric
Unfortunately, this did not work. After running through both steps what I see now is that I can login still with the keyboard and trackpad. I click on enter/submit, an "installation" bar displays below the password field and then my desktop displays.
I thought it worked at first because I was able to use trackpad for about 10 secs and saw the pointer change sizes and blink. After the 10 secs though, the trackpad stopped working. The keyboard didn't work either.
Suggestions?
If the problem is still there, try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer or by using the developer’s uninstall instructions. For each disable/delete, you will need to restart if you don't do them all at once.
Safe Mode - About El Capitan
also Sierra
Safe Mode Startup – El Capitan. also Sierra
If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.
why does my keyboard not work after login
