F.A.Q & LEDS

Q&A:

Is the Mig Dumper included with Mig Flash (card)?

No, it is not. Mig Flash (card) and Mig Dumper are 2 separate products. You will always need Mig Flash cart to play your backups on your console. Mig Dumper is a very convenient but optional method to create those backups. You can either share a Mig dumper between several users, or use a hacked Nintendo© Switch to create them, as indicated in our "Download" section.

How big a microSD does the Mig Flash support?

We have tested all microSD card sizes up to the largest currently available (1.5TB). They are all supported. And although we can't test 2TB yet as it is not available on the market, there is no reason why it wouldn't be compatible. However, keep in mind that a Nintendo© Switch game is only on average 10GB in size, so we recommend using smaller and cheaper cards, and eventually multiples if you own a lot of games.

Can I play online?

You can with your own game backups as long as you respect carefully the instructions in our 'Download' section:

1) Online mode is only recommended with a fully complete game dump.

2) If a valid Certificate, Card ID Set, or Card UID is missing, online mode is not recommended as it can lead to a ban.

Can I sort games in alphabetical order?

Yes, you can use tools that sort files on the microSD exFAT partition. We recommend SD Sorter. It works for all platforms (Windows, Linux, and Mac).

By default, games are in the order that you copied them to the SD card. This is because we believe most of our users want their favorite games first and easier to access, but you have that option too.

Do you support DLC and game updates?

Mig Flash backups are compatible with DLC and game updates. IMPORTANT: You need to be online to have the DLC and game updates downloaded (it is an automatic process), so you will, as above, make sure you properly followed the game backup procedure.

Is it possible to transfer games I've purchased in the Nintendo eShop over to the Mig Flash?

No, unfortunately, currently, it is not possible.

I cannot switch to the next game, only when I delete the .nxindex file from microSD

This is a common misconception. The Mig Flash detects when a ROM is launched and it will lock to that ROM. When the ROM is locked, ejecting the Mig Flash will no longer switch to the next game unless it is timed at the very right moment: when the LED turns green.

Once the Mig Flash is ejected during the green LED, the ROM will become unlocked again. This has the same effect as deleting the .nxindex file.

I get a gamecard read error when waking up from sleep mode

We have noticed some cases where the ROM would get unlocked and switch to the next game unintended. Try firmware 1.1.3 if you have been affected by this.

A temporary workaround for this entirely is to only have one ROM on microSD.

I sometimes get a gamecard read error or the game does not work

Usually, this is due to a fake microSD card. These microSD cards appear to have large capacity but contain very little storage. Copying data to the microSD causes data to overwrite and corrupt itself.

We recommend testing if your microSD is functioning correctly by using a tool like h2testw.

Can I use NSP format or convert NSP to XCI?

No, this is not possible. These are not supported.

How can I see the firmware version?

Since firmware version 1.0.9, the current firmware version is saved to the .nxindex file on microSD. You can open this file in a hex editor and see the current firmware version at the end of the file.

After updating firmware, the firmware version will only be visible once you switch a ROM. To avoid any confusion when trying to identify the firmware version from an old .nxindex file, we recommend you delete it after the update so it will be automatically recreated.

When I have no game running and wake up from sleep mode, the gamecard is no longer inserted

This is normal and not a bug. Simply eject and re-insert the Mig Flash to have it show up again. If a game was running, then it will not disappear and no eject is needed.

MigDumpTool can dump 8 files, and Mig Dumper only dumps 5. Why?

The three files that can optionally be dumped extra by MigDumpTool are (CardInfo), (Header), and (Specific Data). These files are not required, as they can be decrypted or extracted from the existing 5 file dumps. You can opt to dump them if you want, but every single bit of information of the gamecard is already contained in the 5 files.

LED Troubleshooting Guide:

The Mig Flash LED indicator is a good place to start first when trying to troubleshoot the Mig Flash card:

 

Solid Red LED

The microSD card could not be read or there is no valid ROM present on the microSD card.

Make sure you have the latest firmware installed, as newer firmware versions can contain better support for microSD card brands. If your unit has problems updating, we recommend using a freshly exFAT-formatted microSD card with only the update.s2 file present.

If the problem persists, try with a different microSD card.

Starting from firmware version 1.1.3, a solid white LED color is used to indicate no valid ROM present. For firmware versions below 1.1.3, please also follow the instructions for the solid white LED.

 

Solid White (Slightly Pink) LED

There is no ROM on the microSD card or the (exFAT) filesystem of the microSD card could not be read.

Make sure your microSD is formatted in the exFAT filesystem.

Make sure you have a valid ROM present on the microSD card. This means you must have the following files:

  • ROM (Card ID Set).bin
  • ROM (Card UID).bin
  • ROM (Certificate).bin
  • ROM (Initial Data).bin
  • ROM.xci

In some earlier firmware versions, Unicode characters in the filenames were not supported. Try renaming using only Latin characters or digits.

 

Solid Green LED

The ROM was successfully loaded. Everything is OK.

If you want to switch to the next game, you must eject immediately when the LED turns green. This is required to unlock the Mig Flash from the last launched ROM.

 

Blinking Blue LED

The Mig Flash firmware is being updated. Please wait until it stops blinking.

If you eject and reinsert the Mig Flash and it no longer blinks blue, then you can be certain the firmware is applied.

 

Blinking Red LED

The unit is potentially not getting good contact with the power pins or is defective. Try cleaning the pins and trying without any microSD card inserted. If this does not help, try contacting your reseller or Mig Flash to determine if the unit is faulty.

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