Always scan downloaded files with VirusTotal. Some antivirus programs flag MPall as a "hacktool" because it modifies firmware – this is a false positive specific to this category of repair tools.
This guide assumes you have already backed up any recoverable data. Once MPall writes new firmware, previous data is unrecoverable. Phison Mpall V5.13.0c
Auto unless you know exact flash (e.g., Toshiba, Micron). Wrong = brick.Format + Fat32 or NTFS).Test/LLF tab → Tick Low Level Format if drive is corrupted/0MB.Close main tool, use MPParamEdit_F1.exe: Always scan downloaded files with VirusTotal