From official reports: "Rescuers have found the emergency locator transmitter (ELT) installed near the second black box <the FDR> of the crashed plane. .. Search in the main impact area … More orange pieces were found at the core search area that experts later verified are parts of the black box."
Next to that, a photo shows that a 3D model of the impact site is being prepared. There is no information on either a photogrammetry or LIDAR basis. But I think this will certainly become a standard tool in the accident investigation toolbox. Especially useful in remote and uncharted locations like these.