Many YouTube videos promising the "YuGiOh Duel Generation mod unlock all cards full" are scams. They will direct you to survey sites, password-protected .rar files, or virus-laden APKs that only unlock the tutorial cards (the 100 starter cards).

The bulk data cache containing card artwork, sound assets, and the specific .dat or .bin save file that contains the instructions flagging all 7,000+ cards as "owned" in your inventory.

If you're not comfortable with modding or rooted devices, you can also try:

Some "unlock all" versions rely on a pre-saved profile file. If your download came with a system.dat or similar save file, you must copy it into the game’s data directory inside Android > data > com.konami.ygodg > files before launching the game. Step 5: Launch and Play Offline

Duel Generation stored your card collection server-side to prevent cheating. You could hack your local Gold amount visually, but the moment you tried to buy a pack, the server would notice the discrepancy and error out.

The search for a "yugioh duel generation mod unlock all cards full" is a journey that many players have taken. While comprehensive solutions like the Sbenny mod once existed and were effective, the game's official server shutdown means the mod is likely no longer functional. Your efforts and time would be better spent exploring more modern and supported Yu-Gi-Oh! digital games that offer continuous updates and large, active player bases.