In addition to some of the ribbon repair techniques I’ve seen here, I saw this on hackaday today and thought it may also apply(similar to the oven technique, really)

Repair a Malfunctioning LCD

Yup… that’s basically the same as the oven method, except using a heat gun as the heat source. You gotta be really careful with those though because it’ll easily curl the cable if you get it too hot.

DogP