How can I unformat a flash drive or recover lost data on a formatted flash drive

How can I unformat a flash drive or recover lost data on a formatted flash drive

Use “Unformat” to unformat a flash drive Windows 7/8/8.1

Use “Recover partition” to recover lost data on a formatted flash drive if partitions changed or damaged or deleted.

Use “Full Scan” mode to recover lost data on a formatted flash drive which can not be found with “unformat” and “recover partition”,show as raw partition,partitons which are not NTFS,nor exfat,nor fat32. With deep and full scan