Hello, I'm a new to owner of a 2015 Discovery 4 HSE, 1 week in an all was going well, until my wife knocked the GPS antenna off after clipping a height barrier. After driving the car home and parking up . I tried to restart the car and received the smart key not recognised message. I have tried most of the suggestions I can find online, hold key to the under side of the steering column, discount re-connect the battery, and replace the key fob batteries all with no success. I'm at my wits end. Anyone had similar or could make any suggestions? Thanks in advance.