MAYBE ? .....You can carefully take a jewlers screwdriver (small) on one side of the meters there should be what looks like scotch tape pull it up, or cut it off ,you will see a very small set screw down the hole ,very slightly and carefully turn the screw left and right SLIGHTLY !! you might get lucky and they will come back to life ? I also noticed with a lot of meters like that is that they get full of static electricity and this to can cause problems ...there is static spray you can buy and spray onto a rag and lightly whip the meters off with it ,also fabric softner will work the same way or there's those fabric sheets moms throw into the dryers ,you can just wet one of those and do the same thing , I've brought back a few meters in my time doing these things but i must admit ,there were those that were just plain gone )-: Good Luck to you. Switch Kit