Nintendo Switch 2 Modding: Early Homebrew & Hack Developments
The Nintendo Switch 2 is barely out, but its modding scene is already buzzing. Powered by a custom Nvidia Tegra “Ampere” SoC with eight Arm Cortex-A78C CPU cores and an Ampere-based GPU (~1,536 CUDA cores), the system delivers roughly 10× the graphics performance of the original Switch, thanks in part to built-in ray-tracing and DLSS upscaling hardware. Reviewers report docked performance similar to a GTX 1050 Ti, with DLSS likely assisting 4K output and handheld framerates up to 120 FPS. The upgraded hardware also enables major changes to storage—most notably native NVMe support via microSD Express, which has already sparked creative hardware hacks.
Faster Storage via microSD Express: NVMe on Switch 2
One of the first hardware breakthroughs comes from modders who created an open-source NVMe SSD adapter for the Switch 2. Because its microSD Express slot follows the SD Express 7.1 standard, it exposes a true PCIe Gen3 x1 NVMe interface. This means the adapter (SDEX2M2 by NVNTLabs) simply reroutes the microSD pins to an M.2 2230 NVMe SSD—no bridges or protocol conversion required.
What this unlocks:
- Speeds up to ~1 GB/s (the limit of PCIe Gen3 x1).
- Support for cheap, high-capacity M.2 SSDs instead of pricey SD Express cards.
- Potential for the Switch 2 to boot directly from an NVMe SSD.
The design is still in early prototype form and needs an MCU for proper handshaking, but initial tests confirm the concept works. Builders warn to use only low-voltage M.2 2230 drives—and never insert the adapter into an original Switch.
Day-One Exploit: A Userland ROP Proof-of-Concept
Within 24 hours of release, hacker David Buchanan unveiled the first Switch 2 exploit on firmware 20.1.1—a userland-level ROP chain triggered through a bug in a shared library. His demo simply displays custom graphics on the screen, proving arbitrary code execution in user space.
But there are important limitations:
- It does not escape to the OS or kernel.
- It cannot install homebrew or modify firmware.
- Buchanan himself notes it may be closer to a “fun glitch” than a real hack.
Analysts agree this won’t jailbreak the console, but such early userland vulnerabilities sometimes pave the way for deeper kernel-level breakthroughs. For now, it’s a curiosity—and a sign that security researchers are actively probing the system.
Save-File Modding: A Workaround for Now
With no custom firmware available, some modders are exploring game save manipulation instead. Testing shows that you can transfer saves between a hacked Switch 1 and a Switch 2 using Nintendo’s built-in transfer tools.
This enables clever workflows:
- Play on Switch 2, enjoy better performance, then
move the save back to a modded Switch 1 to edit items or apply cheats. - Create modded builds on Switch 1 (e.g., Zelda or Splatoon), then
send the save to Switch 2 to keep playing.
All of this uses official system features—no hacks running on the Switch 2 itself.
However, caution is warranted:
- Corrupted or edited saves may trigger system protections.
- Some speculate the early userland exploit may have stemmed from a malformed save file.
Save-file experimentation is still very early, but it’s currently the safest way to inject modded content into Switch 2 titles.
The MIG Flash Cartridge: It Works… and It Gets You Banned
The MIG Flash (formerly MIG Switch), a multicart device popular in Switch 1 modding, technically works on Switch 2 after a recent MIG firmware update—allowing users to play their own dumped Switch 1 game backups on the new hardware.
But the risks are enormous:
- Switch 2 consoles using MIG are being permanently banned from online services.
- Users report error code 2134-4508, losing eShop, cloud saves, and online play.
- The ban applies to the console, not the Nintendo Account.
Why this happens:
Nintendo authenticates game cartridges using unique identifiers (CID, certificates, and Card Set IDs). If a cartridge’s ID appears on two consoles simultaneously—such as on a real cart and a MIG clone—Nintendo flags it as piracy. Even users claiming to use only “legally dumped” games are being banned.
With Nintendo’s updated EULA permitting console deactivation for unauthorized hardware, using MIG on Switch 2 is essentially guaranteed to result in an online ban. You can still play offline, but you lose most of the system’s core features.
Where Things Stand
The Switch 2 modding scene is just beginning. We already know:
- The hardware is highly capable and supports true NVMe storage.
- A tiny userland exploit proves code execution, but offers no practical use yet.
- Creative methods—like save-file transfers—offer limited modding potential.
- Nintendo’s anti-tamper measures are aggressive, with real console bans already happening.
A full jailbreak or custom firmware is not available yet, but the community is investigating fast. If the original Switch is any precedent, early kernel exploits or modchips could appear within the coming months.
Until then, modders should proceed carefully—especially with hardware like MIG Flash—and stick to low-risk experimentation such as storage mods and save-file testing.