Monster Hunter 4g 3ds -jpn- -update- Cia -

To install the update CIA, you must have Custom Firmware (Luma3DS + boot9strap). This guide assumes your 3DS is already hacked.

| Problem | Likely Cause | Solution | |---------|--------------|----------| | FBI error 0xD9004586 | Corrupt CIA file | Re-download from another source; verify SHA-1. | | Game still shows Ver. 1.0 after install | Installed to wrong region’s folder | Use FBI → Titles → Monster Hunter 4G → Import Seed (if you have internet). | | DLC quests not appearing | Missing v1.3 or region mismatch | Ensure you have JPN DLC CIAs (not USA). | | Online mode says “Update required” | Only partial install | Install both update and the patch for online (sometimes separate). Reinstall v1.3. |


The official 1.2 update for Monster Hunter 4G primarily addressed the following:

The 1.2 and 1.3 updates rebalanced the Wystone system, making Apex Rajang and Apex Deviljho less unfairly punishing. The “Drive” Wystone’s duration was extended.

For newcomers, a CIA (CTR Importable Archive) is a package format used by the 3DS modding community. It functions like a digital installer – similar to the official Nintendo eShop package. Once installed via a tool like FBI or Custom Install, the 3DS treats it as a legitimately installed title. Monster Hunter 4G 3DS -JPN- -Update- CIA

The Monster Hunter 4G Update CIA is not the full game. It is a patch ranging from 300MB to 700MB, depending on the version. It installs directly to the SD card’s NAND partition (TWL NAND or SD title database) and patches the base game in memory.


As of 2025, the definitive version for Monster Hunter 4G is v1.3 (Title ID: 0004000E00125300) — note the E in the ID, which denotes update data. The base game ID is 0004000000125300.

When searching online archives (like Internet Archive, CDRomance, or dedicated Reddit threads), look for:

Avoid “pre-patched” CIAs that claim to include the update merged. They often break DLC compatibility. To install the update CIA, you must have

Warning: Do not install a USA update on a JPN game or vice versa. This will corrupt the title and require a clean reinstallation of the base game.


Step 1: Prepare the SD Card

Step 2: Launch FBI

Step 3: Locate the CIA

Step 4: Install the Update

Step 5: Wait for Verification

Step 6: Exit and Verify

Monster Hunter 4G 3DS -JPN- -Update- CIA