If the drive’s controller encounters a bad block in the newly unlocked hidden region, the drive may enter a "read-only" panic mode or disconnect entirely. You will not lose existing files, but you will be unable to write new ones.
Would you like help testing your drive’s real capacity safely?
For SD cards, download the official SD Memory Card Formatter tool provided by the SD Association to safely reformat the partition to its optimized, factory-grade settings. For standard USB drives, right-click the unallocated space in Disk Management, create a "New Simple Volume," and format it using standard exFAT or NTFS allocation defaults. Safe and Real Ways to Increase Storage Space SData Tool V1.0.0 -Double USB OR SD Card Space-
Users dealing with high-capacity data on smaller, budget-friendly drives. Version: V1.0.0. How SData Tool Doubles USB or SD Card Space
Why waste CPU cycles compressing already-compressed files (like .jpg, .mp4, .zip)? SData V1.0.0 includes a smart filter: If the drive’s controller encounters a bad block
It sounds like you’re referring to a tool called that claims to double USB or SD card space.
SData Tool V1.0.0 is a utility that claims to double available storage by combining two removable media (two USB drives or two SD cards) into a single logical volume. This report summarizes functionality, likely implementation approaches, security/privacy implications, performance considerations, compatibility, failure modes, and recommendations. For SD cards, download the official SD Memory
immediately to prevent data corruption.