User Guide

Mig Flash — How to Backup Your Games

Source: migflash.com

📥 Firmware Downloads

Latest Mig Flash & Dumper Firmware (update.s2)

Always keep your device updated to ensure the best compatibility with the latest system updates.

Download Latest Firmware (.s2)

Official Download Page: Visit MigFlash.com Downloads

Overview

Mig Flash is a backup and development device compatible with ALL Nintendo Switch consoles. There are two primary methods to create game backups:

  • Mig Flash Dumper (Dedicated hardware, recommended for convenience)
  • Hacked Switch + NXdumpTool (Homebrew method)

Method 1: Backup with Mig Dumper

  1. Insert your original game card into the Dumper slot.
  2. Connect the Dumper to your PC via USB.
  3. Copy the XXX.xci folder from the recognized drive to your PC.

Method 2: Backup via Hacked Switch + NXdumpTool

Requires the latest NXdumpTool.

Required Files (The Big 5):

  • Gamecard image (XCI)
  • Initial data (BIN)
  • Certificate (BIN)
  • Card ID Set (BIN)
  • Card UID (BIN)

How to Update Firmware

For Mig Flash Cart: Place the update.s2 file into the root folder of your microSD card.

For Mig Dumper: Drag and drop the update.s2 file into the System folder on the Dumper drive.

⚠️ Anti-Ban Note: Always use 100% complete, private dumps from your own cartridges to play online safely. Do not use incomplete or "mixed" files.