DBI Switch can be used to create a backup of a Nintendo Switch gamecard that you physically own. The most clearly documented method uses DBI’s built-in MTP Responder, which exposes an inserted cartridge to a connected computer through the virtual 9: Gamecard storage.
From this MTP location, DBI can create a standard .XCI backup or a trimmed .XCI backup. If the cartridge contains an update, DBI can include the update that is built into the gamecard. The documentation also states that the personal RSA certificate is automatically removed from the XCI and dumped separately.
Gamecard backup should be treated as an archival feature for cartridges you own or are authorized to preserve. Creating a backup does not change ownership or licensing rights for the game, so copies should remain for legitimate personal use rather than distribution.
What Is DBI Switch Gamecard Backup?
A DBI Switch gamecard backup is a digital copy of the data stored on a physical Nintendo Switch cartridge. Instead of relying only on the physical card, the owner can preserve the cartridge data as an XCI file on a computer.
An XCI is a container format commonly used to represent Nintendo Switch gamecard content. In DBI, the Gamecard MTP storage can expose the inserted cartridge and allow that data to be copied directly to a PC or compatible Android device.
DBI’s documentation specifically lists gamecard dumping as part of MTP Responder. With a cartridge inserted, the Gamecard storage can provide full, trimmed, and certificate-related dump options.
How Gamecard Backup Works in DBI
DBI communicates with the physical cartridge through the Nintendo Switch gamecard reader. When the cartridge is recognized, DBI can expose it through the 9: Gamecard storage while MTP Responder is running.
After connecting the Switch to a PC through USB, Windows sees DBI as an MTP device. Inside that device, the Gamecard storage represents the inserted cartridge rather than an ordinary directory on the microSD card.
Copying the appropriate XCI entry from this virtual storage causes DBI to read the gamecard and transfer its data to the computer. This means the backup is created during the USB transfer instead of first requiring a complete temporary copy on the SD card.
This approach can be convenient for large cartridges because the computer’s drive becomes the final destination. It also reduces the need to reserve enough free space on the Switch microSD card for both the cartridge backup and other installed content.
What Data Can Be Backed Up
DBI can dump the main gamecard content into an .XCI file. According to its documentation, the gamecard view also supports a trimmed XCI and can include an update built into the cartridge when such an update exists.
The documentation also states that the gamecard’s personal RSA certificate is automatically removed from the normal XCI backup and exported separately. This is an important distinction because the certificate is unique cartridge-related information and should not be casually shared.
A gamecard backup should not be confused with save-data backup. Nintendo Switch game saves are normally stored in the console’s internal storage rather than on the physical gamecard. DBI handles saves separately through its Saves features and MTP 7: Saves storage.
Therefore, backing up an XCI preserves cartridge content, but it does not automatically create a backup of your gameplay progress.
How to Back Up a Gamecard Using DBI
The simplest documented DBI gamecard backup workflow is to insert the cartridge, start MTP Responder, connect the Switch to the computer, and open the Gamecard storage.
Before beginning, make sure DBI can recognize the cartridge normally. You should also use a reliable USB data cable because the backup can involve transferring many gigabytes of data.
Large XCI files can take time to transfer depending on USB speed, computer performance, storage speed, and cartridge size. Avoid disconnecting the console or allowing the computer to sleep while the copy is still in progress.
Insert the Gamecard
Insert the Nintendo Switch gamecard into the console’s cartridge slot while the Switch is powered on.
Give the system a moment to recognize the cartridge. The game’s icon should normally appear on the HOME Menu if the cartridge is readable.
DBI’s own interface contains an Install title from Gamecard option when a cartridge is inserted, showing that DBI can detect and work with the gamecard directly. However, that option is for installing cartridge content to console storage; it should not be confused with the MTP backup workflow.
For backup purposes, you will generally use Run MTP responder and then access 9: Gamecard from the connected computer.
Open DBI and Select the Backup Option
Launch DBI from the Homebrew Menu and select Run MTP responder. DBI’s documentation also lists the X button as a shortcut for starting MTP Responder from its main menu.
Connect the Nintendo Switch to the computer with a USB-C data cable.
On the PC, open the Switch MTP device and locate:
9: Gamecard
This virtual storage appears when DBI detects an inserted cartridge and the Gamecard MTP storage is enabled.
You should see available dump choices associated with the cartridge, including standard XCI and trimmed XCI options. Select the version appropriate for your personal archival needs and copy it to a folder on the computer.
Choose the Backup Destination
When using DBI’s Gamecard MTP storage, the backup destination is selected on the PC. For example, you can copy the XCI to a dedicated backup directory on an internal SSD, external drive, or another storage device with sufficient capacity.
Choose a drive formatted to support large files. Many Nintendo Switch XCI backups exceed 4 GB, so a filesystem with a 4 GB single-file limit may not be suitable for storing a normal single-file XCI.
Before starting, make sure the destination has enough free space for the selected backup format. A full dump may be closer to the cartridge’s physical capacity, while a trimmed dump can require less space because unused portions are removed.
For long-term storage, it is also useful to keep backups organized by game name and avoid renaming files in a confusing way. Maintaining a consistent folder structure makes it easier to identify which cartridge each file came from later.
DBI Gamecard Backup Formats
DBI’s documentation specifically identifies two main gamecard backup options through MTP: a normal .XCI dump and a trimmed .XCI dump.
The two formats contain the meaningful cartridge data but differ in how unused cartridge space is represented.
Understanding that difference helps when deciding whether archival completeness or storage efficiency matters more for your backup.
XCI Backup
A standard XCI backup represents the Nintendo Switch gamecard as an XCI container.
This is the most straightforward archival format for cartridge data because it follows the general gamecard image structure rather than converting the title into an installed-content package.
DBI may also expose an update contained on the cartridge as part of the gamecard dump where applicable. This refers to content physically included on the gamecard, not newer updates that may have been separately downloaded to the Switch from Nintendo.
The XCI should be stored somewhere with adequate free space and preferably included in a regular backup routine. A digital archive is only useful if the storage device containing it remains healthy.
Trimmed vs Full Gamecard Backup
A full gamecard image preserves the larger cartridge image layout, including unused space that may exist beyond the actual content. Because gamecards are manufactured in fixed capacities, the physical card can contain unused sectors.
A trimmed XCI removes unnecessary unused padding from the end of the image. As a result, the file can be smaller while retaining the meaningful cartridge content.
DBI explicitly provides both normal and trimmed XCI options through its Gamecard MTP storage.
For most personal storage situations, a trimmed backup can save disk space. A full backup may be preferred when someone specifically wants a representation closer to the complete physical cartridge image.
Neither format should be interpreted as a save-game backup. Your user progress must still be backed up separately through DBI’s save-management functions if needed.
Where Are DBI Gamecard Backups Saved?
The location depends on how the backup is created.
For the documented MTP gamecard workflow, the XCI is copied directly from the virtual 9: Gamecard storage to the location you choose on the connected PC. In that case, there is no fixed DBI folder on the Switch that must contain the final XCI.
DBI also has a configurable DumpsFolder, whose documented default is:
sdmc:/switch/DBI/dumps/
However, DBI documentation describes this setting as the folder for title dumps on the memory card, particularly when dumping installed content. It should not automatically be assumed that every MTP gamecard backup is first saved there.
SD Card Backup Location
DBI’s default dump path in its configuration is:
sdmc:/switch/DBI/dumps/
The documentation identifies this as the memory-card location used for game/title dumps controlled through the DumpsFolder setting.
However, the specifically documented Gamecard MTP process works differently. With MTP, the cartridge is exposed directly to the computer and the backup is written to the folder selected on the PC.
Therefore, if you used 9: Gamecard through MTP and cannot find the XCI under switch/DBI/dumps, that may be completely normal. Check the PC folder you selected during the copy operation.
Do not confuse DumpsFolder with SavesFolder. DBI uses separate directories for title dumps, logs, and save backups.
Copying the Backup to a PC
When using the MTP method, the backup is already transferred directly to the PC while it is being created.
Open Windows File Explorer, navigate to the DBI MTP device, open 9: Gamecard, and copy the desired XCI entry to your computer.
Choose a location with enough available storage. An SSD can provide a more responsive transfer experience, although the cartridge, USB connection, Switch USB mode, and DBI itself can also limit transfer speed.
After the transfer completes, confirm that the resulting XCI is present on the PC before closing MTP Responder or removing the cartridge.
If you created a title dump on the Switch’s SD card through another DBI feature, you can also use 1: SD Card in MTP Responder to copy that file from the SD card to the PC.
How to Transfer a Gamecard Backup With MTP
MTP is one of DBI’s most useful features because it allows the Switch to communicate directly with a Windows PC or supported Android device over USB.
DBI exposes multiple virtual storage areas through MTP, including the SD card, saves, installed games, Album, and Gamecard. The Gamecard entry is specifically designed to let users dump an inserted cartridge to another device.
This eliminates the need to repeatedly remove the microSD card from the console.
Start MTP Responder
Open DBI and choose Run MTP responder.
The X button can also be used as a shortcut from DBI’s main menu. When MTP is active, connect the Switch to the computer through a known-good USB data cable.
Windows should detect the Nintendo Switch as an MTP device.
Open the device and look for the available DBI storage entries. When a compatible cartridge is inserted and Gamecard storage is enabled, you should see:
9: Gamecard
If that storage is missing, make sure the gamecard is recognized by the console and that the Gamecard MTP storage has not been disabled in dbi.config.
Copy the Backup Through File Explorer
Open 9: Gamecard in File Explorer.
Choose the normal XCI or trimmed XCI entry and copy it to a folder on your PC. DBI will read the gamecard and send the data across the USB connection as the file is copied.
Do not disconnect the USB cable until the transfer has completely finished. A partially transferred XCI should not be treated as a valid completed backup.
Also make sure Windows has not entered sleep mode and that the destination drive remains connected throughout the transfer.
After the copy is complete, compare the resulting file against the expected size shown during the operation if available. You can then store another copy on a separate drive if the cartridge archive is important to you.
DBI Gamecard Backup Not Working
Gamecard backup failures can occur for several reasons, including cartridge detection problems, unstable USB connections, insufficient storage, MTP issues, or an interrupted transfer.
The best troubleshooting approach is to identify whether the problem occurs before DBI detects the gamecard, when MTP starts, or during the actual file copy.
This helps avoid changing unrelated settings.
Gamecard Not Detected
First return to the Nintendo Switch HOME Menu and confirm that the console itself recognizes the physical cartridge.
If the game icon does not appear, remove the cartridge and carefully reinsert it. Inspect the cartridge for obvious dirt or physical damage, but avoid aggressive cleaning methods that could damage the contacts.
Restarting the console can also help if the gamecard reader did not initialize correctly.
Once the cartridge is recognized by the Switch, reopen DBI. Its documentation notes that Install title from Gamecard appears when a gamecard is inserted, which can also serve as an indication that DBI sees the cartridge.
If the cartridge works in the HOME Menu but 9: Gamecard does not appear under MTP, check the MTP storage configuration.
Backup Process Fails
If the backup starts but later stops, first check the USB connection.
Replace the cable with a known-good USB-C data cable and connect directly to the PC instead of through an unstable hub. A cable that works for charging is not necessarily reliable for long data transfers.
Also make sure the destination disk is healthy and remains available throughout the copy. External hard drives that disconnect or enter aggressive sleep modes can interrupt a large XCI transfer.
Restart DBI’s MTP Responder and try the copy again. If the failure consistently occurs at the same point, verify that the cartridge itself can be read normally by the Switch.
Avoid repeatedly using a partially created file. Delete the incomplete copy and start a clean transfer.
Not Enough Storage Space
Gamecard backups can require substantial disk space.
A cartridge may contain many gigabytes of data, and a full gamecard dump can be larger than the amount of actual game content because it can preserve unused portions of the gamecard image.
A trimmed XCI generally needs less storage because unused trailing space is removed.
Before copying, check the free space on the destination drive and leave some additional headroom rather than using every remaining gigabyte.
If your target drive has a filesystem that does not support files larger than 4 GB, even having enough total free space may not be sufficient for a large XCI. Use an appropriate large-file-capable filesystem on the PC storage device.
How to Verify a DBI Gamecard Backup
Creating the file is only the first part of a reliable backup process. You should also confirm that the transfer finished normally and that the resulting file looks reasonable.
A failed or interrupted copy can still leave a file behind, so simply seeing an .XCI filename does not prove the archive is complete.
Verification does not need to be complicated. Basic checks such as file size, successful transfer completion, and optional cryptographic hashing can provide confidence that your stored copy has not changed.
Check the Backup File Size
After the backup completes, check the XCI file’s size on the PC.
A zero-byte file, extremely small file, or file whose size stopped increasing after an interrupted transfer is clearly not a valid completed gamecard backup.
Remember that a trimmed XCI can be significantly smaller than a full XCI, so different sizes do not automatically indicate corruption.
If you create multiple copies of the same backup, you can also calculate a standard cryptographic hash such as SHA-256 for your own archival verification. Matching hashes between copies show that the files are byte-for-byte identical.
Store the hash in a small text file next to the backup if you want to verify the archive again in the future.
Confirm the Backup Completed Successfully
Wait until Windows shows that the file copy has completely finished before exiting MTP Responder.
Check that the resulting file can be read from the destination disk and that Windows reports a normal file size.
If DBI or Windows displayed an error during transfer, do not assume the resulting XCI is complete even if it appears in the folder.
For an important personal archive, keeping two copies on separate storage devices is better than relying on one drive. Hard drives, SSDs, and external storage can all eventually fail.
The original physical gamecard should remain your primary source, while the digital backup can serve as an additional archival copy.
Is It Safe to Back Up Gamecards With DBI?
Backing up a cartridge is primarily a read operation, so the original gamecard is not normally being rewritten during the dump.
Nintendo Switch retail gamecards are designed differently from ordinary writable storage devices. DBI reads the content to create the XCI rather than modifying the game stored on the cartridge.
However, software and account safety should still be considered separately from physical cartridge safety. Use trusted DBI builds, avoid unknown modified versions, and do not share cartridge-specific certificate information.
Protecting Your Original Gamecard
Keep the cartridge inserted securely while the backup is taking place.
Do not remove it during an active read operation, and avoid powering off the console in the middle of a transfer.
DBI specifically states that the personal RSA certificate is removed from the XCI and dumped separately when using its Gamecard MTP function.
Treat that certificate as sensitive cartridge-specific data. There is normally no reason to publish or distribute it online.
After the backup is complete, store the physical gamecard somewhere dry and protected from excessive heat, moisture, dust, and physical damage.
Keeping Backups for Personal Use
The safest legal approach is to create backups only from cartridges you own or are otherwise authorized to archive and keep those copies for your own use.
An XCI file contains copyrighted game data. The fact that DBI can create the file does not give permission to upload or distribute it to other people.
Keep your backup storage private, especially if certificate files are also present.
If you sell or transfer ownership of the physical gamecard, local laws and licensing conditions may affect whether retaining the backup remains permitted. Rules can vary by country, so a personal backup should not be treated as a universal right to distribute or permanently keep copyrighted game data.
Conclusion
DBI Switch provides a convenient way to back up a physical Nintendo Switch gamecard through its MTP Responder.
With a cartridge inserted, the 9: Gamecard storage can expose the game to a connected PC or compatible Android device. DBI supports a normal .XCI backup, a trimmed .XCI backup, and separate handling of the cartridge certificate. It can also include an update that is physically built into the cartridge where applicable.
The MTP method is particularly convenient because the backup can be written directly to the computer instead of first requiring enough free space on the Switch SD card.
For the most reliable archive, use a stable USB connection, check available storage before starting, confirm that the completed file has a reasonable size, and keep an additional copy on separate storage if the backup is important.
Most importantly, keep gamecard dumps and cartridge-specific information private and use the backup feature for games that you personally own or are authorized to archive.
Frequently Asked Questions
Can DBI back up Nintendo Switch gamecards?
Yes. DBI’s MTP Responder includes a virtual storage called 9: Gamecard that appears when a supported gamecard is inserted. From this location, the cartridge can be dumped directly to a PC or supported Android device. DBI documents both full and trimmed XCI options for gamecard dumping.
What format does DBI use for gamecard backups?
DBI uses the .XCI format for gamecard dumps. It supports a normal XCI and a trimmed XCI, with the trimmed version removing unused space to reduce the resulting file size. DBI can also dump the personal RSA certificate separately rather than leaving it inside the normal XCI backup.
Where does DBI save gamecard backups?
When using 9: Gamecard through MTP, you select the destination on the connected PC, so there is no mandatory Switch-side folder for the final XCI. DBI does have a configurable general title-dump folder, whose documented default is sdmc:/switch/DBI/dumps/, but the Gamecard MTP workflow transfers the cartridge directly to the computer.
Can I transfer a DBI gamecard backup to my PC?
Yes. In fact, direct PC transfer is one of DBI’s documented gamecard backup methods. Start MTP Responder, connect the Switch through USB, open 9: Gamecard in File Explorer, and copy the desired XCI to a folder on your computer. Make sure the USB connection remains stable until the entire file has finished transferring.
Why is DBI not detecting my gamecard?
First check whether the Nintendo Switch HOME Menu itself recognizes the cartridge. If the game does not appear there, reinsert the card and restart the console before troubleshooting DBI. If the cartridge works normally but 9: Gamecard is missing, verify that MTP Responder is running and that Gamecard storage has not been disabled in DBI’s MTP configuration. DBI also exposes an Install title from Gamecard menu entry when it recognizes an inserted cartridge.
How much storage space does a gamecard backup need?
The required space depends on the gamecard and whether you choose a full or trimmed XCI. A full image may be closer to the cartridge’s physical capacity, while a trimmed backup can be smaller because unused trailing space is removed. Check your destination drive before starting and leave additional free space beyond the expected file size. For large XCI files, the destination filesystem must also support individual files larger than 4 GB.
