I had a gross, stinky boss. He quit in a big dramatic display and everyone's glad he's gone. I got his work tablet, which is nice, but it reeks of cigarettes. It's gross and I don't want to put it in my bag. I've thoroughly cleaned it with alcohol wipes, and that's helped but not nearly enough.
You could try Ozium. I don’t know if it’s safe for electronics, but it gets smoke smell out of everything else. It’s not safe to breathe though so do it outside.