In The Martian, Watney tries taking a laptop out of the hab to write down a message from Earth but:
The screen went black before I was out of the airlock. Turns out the "L" in "LCD" stands for "Liquid". I guess it either froze or boiled off. Maybe I’ll post a consumer review. "Brought product to surface of Mars. It stopped working. 0/10."
on the way to Schiaparelli (well after the hab breach), Watney uses a laptop to synchronise the videos of the solar panel output (he also watches tons of TV which I assumed he did on a laptop but I don't think that's explicitly stated).
How did the laptop survive? Is there any mention of this in the book which I missed?