Finding the Version Number on a DS Game Cartridge

No version number is printed on DS cartridges. The label shows title, rating, region, and serial—but not revision.

Where Version Data Lives

• Internal ROM header – Offset 0x0000001E (1 byte: 0 = v1.0, 1 = v1.1, etc.).
• Box/manual – Rarely; sometimes “Rev 1” sticker on manual.
• Online databases – No‑Intro, Redump, GameTDB list CRC32 + version per serial.

How to Check Your Cart

1. Dump ROM (homebrew: GodMode9 on 3DS, Wood Dumper on DS flashcart).
2. Open in hex editor / tool (ndstool, Tinke) → read header byte.
3. Cross‑reference serial (e.g., NTR‑AXXX‑USA) with No‑Intro DAT.

Why It Matters

• Patches / AP fixes target specific revisions.
• Flashcart compatibility (AKAIO, Wood) varies by version.
• Speedrunning – categories split by version (e.g., Mario Kart DS v1.0 vs v1.1).

Casual players never need it. Only relevant for modding, speedrunning, or preservation.