After formatting the Micro SD card, you will lose the entire data on it. If you haven't kept a backup, you have to turn to a professional data recovery program to restore deleted files from SD card of Samsung phone. And before that, you'd better stop importing new data to the SD card until you successfully regain lost ones, which aims to prevent your deleted files from being overwritten by new data. The most effective tool to help recover lost data from Samsung Micro SD card - Samsung SD Card Recovery for Samsung J7 Max.
