Mind if I chime in? I'm a complete novice myself, but I'm sure the coaches around here will agree (and add to the list):
Squat:
Next time you film him, read the sticky on filming techniques, it'll help diagnose problems better.
How Rip teaches is to put thumbs on top of the bar. Your friend is putting them around the bar.
Your friend won't help his wrist injury by bending his wrist underneath the bar.
I can't tell where the bar is due to the camera angle.
His feet seem to be pointing too far forward, and his stance appears too narrow (but this could be camera angle issues).
He's sacrificing tightness to achieve unecessary depth. This is resulting in his knees sliding throughout the entire descent, and by the looks of it, his upper back is relaxing.
Deadlift:
Your friend starts with his hips too low, and the bar too far forward towards his toes. This produces and inneficient bar path.
I can't tell you much more on the deadlift as I don't know enough about it.
It might be prudent for him to lower the weight some and work on his form in both lifts.
Hope this helps.