Your ROM is already patched, the wrong region (must be US/English), or a bad dump. Fix: Find a different clean HeartGold/SoulSilver ROM. Look for a (U) or (USA) version.
( .txt or .xlsx ):
Open the patcher, select your clean ROM as the "Source File," and the included .xdelta patch as the "Patch File". pokemon sacred gold storm silver documentation install
| File | What it covers | |------|----------------| | Pokémon Changes | New typings, base stats, evolutions (e.g., trade evos → level/move) | | Trainer Teams | Gym leaders, rival, Team Rocket, Elite Four – higher difficulty | | Wild Encounters | Every route’s Pokémon (all 493 available) | | Item Locations | TMs, key items, evolution stones moved around | | Boss Guide | Recommended levels/strategies for tough fights | Your ROM is already patched, the wrong region