NX Migrator Pro Switch

NX Migrator Pro
General
Author	sthetix
Type	PC Utilities
Version	1.0.4
License	GPL-2.0
Last Updated	2026/02/23
Links
Download
Website
Source
Support Author

A professional partition management tool for Nintendo Switch SD cards with dual-mode operation: Migration and Cleanup.

NX Migrator Pro provides two powerful modes for managing your Nintendo Switch SD card partitions:

• Migration Mode - Migrate partitions from a smaller SD card to a larger one with automatic FAT32 expansion.
• Cleanup Mode - Remove unwanted partitions (Linux/Android/emuMMC) from a single SD card and reclaim space for FAT32.

System requirements:

• OS: Windows 10/11 (64-bit)
• RAM: 512MB minimum
• Permissions: Administrator privileges required
• Disk Space: Minimal (application is ~10MB)

Hardware requirements:

• Source SD Card (your current smaller card)
• Target SD Card (must be larger than source)
• SD card reader(s) - can use one or two readers

Features

• Supported partition types:
  • FAT32 (hos_data) - Main Nintendo Switch data partition
  • Linux (L4T) - Single Linux partition for Lakka/Ubuntu
  • Android - Both Dynamic (Android 10+) and Legacy (Android 7-9)
  • emuMMC - Single or Dual emuMMC partitions
• Migration Mode:
  • Smart Scanning - Automatically detects partition layout
  • Selective Migration - Choose which partitions to migrate
  • Auto-Expand FAT32 - Automatically expand FAT32 to use free space
  • Safe - Source disk is never modified (read-only access)
  • Fast - Optimized sector-by-sector copying with 32MB chunks
• Cleanup Mode:
  • Single-Disk Operation - Works on one SD card (no target needed)
  • Selective Removal - Choose which partitions to remove
  • FAT32 Preservation - Backs up FAT32 data temporarily during cleanup
  • Auto-Expand - Automatically expands FAT32 to reclaim freed space
  • Safe Backup - Prompts for backup confirmation before proceeding
• GUI:
  • Modern dark-themed interface built with ttkbootstrap
  • Visual partition layout display
  • Real-time progress tracking with detailed status
  • Pre-migration validation and warnings
  • Detailed partition information and size calculations

Media

EASY SD CARD UPGRADE! MIGRATE EMUMMC, LINUX & ANDROID TO A LARGER CARD WITH NX MIGRATOR PRO (sthetix)

Changelog

v1.0.4

• What's Fixed
  • Critical: Fixed 10+ minute hang during file copy scan phase
  • Restored immediate file copying (no delay before transfer starts)
  • Real-time progress tracking now works correctly
  • Large file transfers (30GB+) complete successfully
  • Archive bit fix for Nintendo Switch compatibility preserved
• Changes
  • Replaced robocopy with PowerShell Copy-Item (method from v1.0.2)
  • Maintained Hekate-style Archive bit fix
  • Improved error handling for size calculation failures
  • Progress updates every 2 seconds during copy

v1.0.3

• Enhancements for Large SD Card Support (1TB+)
  • Skip Problematic Directories
    • Skip problematic directories during FAT32 file copy to prevent errors
    • Directories skipped: $Recycle.Bin, System Volume Information, .Trashes, $RECYCLE.BIN, RECYCLER, .Trash-1000/1/2, found.000, FOUND.000
    • These directories don't need to be copied and often cause access errors
  • Improved Progress Tracking
    • Replaced recursive file scanning with Windows API GetDiskFreeSpaceExW
    • Instant O(1) operation - no more timeouts on large file counts
    • Progress now works reliably on 1TB+ SD cards with 100,000+ files
  • Pre-Migration Info Popup
    • Always shows before migration starts with:
      • File count to be copied
      • Total data size
      • Clear Archive bit warning with Hekate instructions
  • Users know exactly what will be copied before starting
  • Enhanced Archive Bit Failure Messages
    • Clear step-by-step instructions for manual Hekate fix
    • Reassures users that SD card will still work without the fix
    • Visual separation for easy reading in logs
  • Safety Improvements
    • Added validation to prevent partitions from exceeding target disk capacity
    • Better error messages for same-tier Clone Mode migrations

v1.0.2

• Fix: Prevent crash when file copy succeeds but final size check fails (timeout, drive disconnect, etc.)

v1.0.1

• What's New in v1.0.1
  • Improved FAT32 File Copying
    • Switched to Windows PowerShell Copy-Item for FAT32 file operations
    • Uses native Windows copy method (same as Windows Explorer)
    • Better reliability and compatibility
    • Copies 100% of files including hidden/system files
    • Silent background operation with no visual interruption
  • Automatic Archive Bit Fix
    • Implements Hekate's Archive bit logic automatically
    • Scans all directories after FAT32 copy completes
    • Sets Archive bit on HOS single file folders (folders containing /00 file)
    • Clears Archive bit on regular folders
    • No more manual Archive bit fixing in Hekate required!
    • Typical execution time: 1-2 seconds
  • Technical Improvements
    • Added CREATE_NO_WINDOW flag to all PowerShell subprocess calls
    • Real-time progress monitoring during file copy (updates every 2 seconds)
    • Better error handling and reporting
    • Improved logging with detailed Archive bit fix statistics
• Migration Result
  • After migration completes, your Nintendo Switch SD card should work immediately without requiring any additional manual fixes in Hekate.

v1.0.0

• Initial Release.

Credits

• CTCaer - Original hekate bootloader and partition manager
• ttkbootstrap - Modern GUI framework

External links

• Author's website - https://sthetix.info/easy-sd-card-upgrade-migrate-emummc-linux-android-to-a-larger-card-with-nx-migrator-pro/
• GitHub - https://github.com/sthetix/NX-Migrator-Pro/