If you see "not c updated," immediately request a refund from the seller. If they refuse, write it off as a loss. No amount of registry editing will turn a Patch B token into a Patch C token. The code is baked into the exe.
Even in offline mode, Valve's client occasionally phones home to check for "suspicious activity." If you use an offline activation and also log into your personal Steam account on the same PC, the shared config.vdf file can corrupt, forcing a "corrupt update" flag—exactly the "not c updated" error.
: If the game files themselves are updated (patches), a new online verification session is usually triggered.
If you see "not c updated," immediately request a refund from the seller. If they refuse, write it off as a loss. No amount of registry editing will turn a Patch B token into a Patch C token. The code is baked into the exe.
Even in offline mode, Valve's client occasionally phones home to check for "suspicious activity." If you use an offline activation and also log into your personal Steam account on the same PC, the shared config.vdf file can corrupt, forcing a "corrupt update" flag—exactly the "not c updated" error.
: If the game files themselves are updated (patches), a new online verification session is usually triggered.
