I have a silver bullet enforcer (not sure as it has no markings but sold that way). I obtained the 5.1 upgrade and downloaded to the Silv Bullet. It counts up to 100 then I get the err-4 message. From what I've been able to find it should do the count up thing twice then report a "GOOD" message. I just get the err-4 thing.

Any help out there?

Joe