The Focus hold button of the SEL70200G is currently not functional for all camera and they may require a firmware update to support it. Please check if any firmware update is available on the product support site.
When using the lens in combination with ILCE-7 or ILCE-7R bodies, it is necessary to upgrade the body firmware to version 1.02 or later.
Note: when using the focus mode or shake compensation switch, some displays on the camera (like focus distance, shake compensation indicator or the focus mode display (AF/MF)) may not match the button setting on the lens. This is not a malfunction.