Old symptom: Eye AF works on an A7III but not on your new A7RV. New fix: V4.0 re-writes the data handshake to mimic a native Sony lens. Eye AF, Animal Eye AF, and Bird Eye AF now work seamlessly.
: Plug the Micro-USB cable into the dock and your computer. techart lm-ea9 firmware
Techart LM-EA9 is a marvel of engineering that brings modern autofocus (AF) to vintage manual lenses on Sony E-mount cameras. This second-generation adapter features a sleek "bulge-less" design powered by four tiny internal motors, making it more compact and stable than its predecessor. Essential Firmware Update Guide Old symptom: Eye AF works on an A7III