I use this lens to shoot my two youngest grandgirls' HS and JrH sports, volleyball and basketball. I have done it with the A1 for several years but wanted to try out the new A7V. No response from either dial. Came on and allowed me to look through it but that was about it. I reseated the lens, pulled the batteries, basically everything I knew to try. Luckily, I had the A1 in the vehicle. Could this be a firmware problem? Looking for answers.