I had to revert back to my Lightroom 5 but the latest version I have is 5.2. I need 5.7 for it to be compatible with my D810. Can someone help me?
I have this same issue. I needed to upgrade my 5.2 version so LR could process images from my D610. I downloaded the above version and I get an error message saying the "Adobe Application Manager, required to start your trial, is missing or damaged. Download a copy of Adobe Application from...." which i did and then it asks me to start my 30 day trial. But I already own LR 5.
And if I enter my serial number it doesn't accept it.