Using manual method for recover mac data is very risky so Use an automatic data recovery tool to successfully recovery any kinds of lost data on Mac System But i personally recommend you to use this Mac data recovery software. You can easily download this software without any hassle. This Mac Data Recovery supports any Mac- based hard drive as well as external hard drive, iPod, USB drive, SD card, digital camera, CF card XD Card, MMC card, memory stick, memory card, and MP3/MP4 player. It also support all Mac OS X 10.6/10.7/10.8/10.9/10.10. It has brilliant users friendly interface which allow the all users to easily and simple use this tool and provide free demo version which allow the users to see the preview of all recoverable data.
Download this trial version of this software which allow the all users to scan and see the preview of all recovered data. The demo version help the users to check it function and capabilities.