You must have mixed up something with your installation. The problem you describe is known to occur when you install the hacked firmware and the original BootManager. Make sure you install both, firmware and BootManager from the hacked software release and everything should be fine.
Enhanced mode starts the game with all enhancements (screen-fixes, DNAS-patch, etc.).
Minimal mode deactivates BootManager and starts the game without enhancements.
And sleep mode deactivates the chip, so your console will act like unmodded.
best regards Jones23