3 Faults after I changed front case mid 2009 MacBook Pro

Hi

After I reassembled my macbook pro following changing the front case (keyboard + trackpad) - as per instructions and equipment from ifixit, I had 3 problems:

1. No wireless card identified in macbook pro

2. Fans are on full speed constantly

3. Won't stay shutdown:after shutting down, restarts by itself

(Otherwise it still works and the new keyboard and trackpad works well

Have I damaged the logic board?

Colin