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Adding Codes to Action Replay DS / DSi (Code Manager Guide)

You cannot "copy-paste an address" directly into the Action Replay (AR) hardware. Codes must be **formatted, encrypted, and transferred via the official PC Code Manager software** using the **USB cable**.

Correct Workflow (Windows PC Required)

Install Action Replay Code Manager: Download from codejunkies.com/support (legacy) or use community mirror (e.g., GitHub archive). Install drivers (signed for Win10/11).
Connect AR Cartridge: Insert AR cart into DS/DSi → Connect **USB Cable** (mini-USB on cart) to PC. Red LED = charging; Green = connected.
Open Code Manager: It detects "Action Replay DS" (or DSi).
Create/Import Code List:
- Manual: Right-click "My Codes" → "New Code" → Enter **Name**, **Code** (12 lines max, format: `XXXXXXXX YYYYYYYY`), **Notes**.
- Import .codelist / .xml / .txt: File → Import. Format must match AR specification (see below).
- Subscribe to Online DB (Defunct): Codejunkies server dead. Use community exports (GitHub, GBAtemp).
Drag & Drop: Drag codes from "My Codes" / "Subscriptions" → **Device (NDS/DSi)** in left pane.
Sync: Click **Write to Device** (arrow icon). Progress bar → "Complete."
Eject Safely: Right-click device → Eject. Remove USB → Remove Cart.

Code Format (Critical)

Each code = **Multiple lines of 8-char hex pairs** (ARM7/ARM9 writes). Example (Infinite Health):

02085C10 000003E7
02085C14 000003E7
D2000000 00000000

**Address** (8 hex) + **Value** (8 hex).
**Terminator:** `D2000000 00000000` (end of code).
**Type Prefixes:** `02` (32-bit write), `12` (16-bit), `22` (8-bit), `52` (conditional), `92` (pointer), `D0`/`D1`/`D2`/`D3` (loop/end).
**Game ID:** Codes are **game-specific** (e.g., `YGGJ 12345678` for Pokémon Platinum). Code Manager matches by Game ID in header.

Common Errors

Error	Fix
"Device not found"	Reinstall driver (Device Manager → libusbK / WinUSB). Try different USB port/cable. Restart PC.
"Code too long" / "Invalid format"	Max ~12 lines per code entry. Split multi-part codes. Ensure terminator `D2000000 00000000`.
Codes don't appear on DS	Game ID mismatch. Edit code header in Manager to match exact Game ID on cart (shown in Manager when cart inserted).
Game freezes/crashes	Bad code (wrong address/value for your region/version). Use codes for your exact Game ID (EUR/USA/JPN/KOR).

DSi Specifics

**Action Replay DSi** (black cart, "DSi Enhanced") required. Original AR DS (white) **blocked by DSi firmware**.
DSi Code Manager version must support DSi (v1.60+).
Codes for DSi-mode games (rare) vs NDS-mode games (most).

Modern Alternative: **TWiLight Menu++ (CFW)** on 3DS/DSi + **Cheats.db** (R4/YSMenu format) → Enable per-game in TWiLight settings. No PC/cable needed after setup. Supports thousands of games.

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