hi i installed wrong iousbfamily on osx and now my login screen is frozen, keyboard and mouse not working plz help

How and why did you install that? What steps did you take in that process. I can then help with some steps to undo them.

I have the same problem, I did that:

Search for

iOUSBFamily

Installing the package is not recommended as it will overwrite your installed kernel extension, and can cause kernel panics at startup if the version downloaded does not match the OS.

Instead, after downloading

1. mount the downloaded

   .dmg

   .
2. Within the folder without the suffix "-log" in the name, right click on the

   IOUSBFamily-xxx.x.x.pkg

   and select "Show Package Contents".

After restart the Macbook Pro, this have password, and now the touch pad and keyboard don't work