If you want to know the easiest way to recover contacts, SMS, call logs, photos, videos and more from OnePlus One/2, just don't miss this
OnePlus Data Recovery program. It will scan out all deleted or lost data, including contacts, messages, call logs, photos, etc and mark them in red on program window from computer via usb cable before they are overwritten. So we can easily preview all deleted data and recover them to computer.