Keyboard and trackpad disabled at login, keeps searching for Bluetooth

"for me the issue is a glitchy connector for the trackpad cable.

Sometimes it works when I press down the frame between the trackpad and spacebar. Just now when I followed this guide

https://www.youtube.com/watch?v=FzcBL1NB...

I realize that the reason it works is because the connector is pressed into the socket. But then it stops again after a while. So today I removed the connector shield and added extra padding to see if that stops the connector to stop dropping out of the socket."

"Hi, I found this link and solved the problem my wife had with her MacBook Pro 13 2015 instantly:

https://joshmccarty.com/fix-frozen-track...

This is taken from the link:

“Shut down the computer.

Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.Release all the keys and the power button at the same time.Press the power button to turn on the computer.Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC”

hope it helps!"

"I am having both the box popping up about the keyboard bluetooth...but my mouse is frozen too!

Yes, pressing the Caps key stopped the box from popping up...but how to get the mouse working again?

I have a 2011 MacBook Pro."

"Hi: This is a question...I wish it were an answer!

I just got a new macbook pro 13"" (2017) and I am also having this problem.

Tried PRAM but could not access the keyboard or the mouse. Also tried holding down the caps key. Tried all the solutions above,

I have an adapter for USB-USBC, so I plugged in an external Apple mouse, and now my cursor works but I still cannot access the keyboard, so I can cannot log in. I plugged in an external keyboard (not Apple), and that also did not work. So I'm stuck....any ideas?"