You need to know which crack you are using (e.g., Codex, RUNE, Anadius). You cannot mix cracks from different groups easily.
Because EA releases patches almost every month (fixing bugs, adding new features, or preparing for new DLC), crack groups have to fully reverse-engineer the update every single time. If you insist on trying to update a cracked copy, here is what the workflow generally looks like, regardless of which repacker you used:
Let’s address the elephant in the room. For years, The Sims 4 has been one of the most pirated games on the internet. With the release of dozens of expensive expansion packs, many players have looked for "alternative" ways to get the content.