If you are using emulator asm cheats cannot be turn off and has to be turn on before you start the game. Asm cheat can be turn off by enabling "Off enable" if you have a real Switch.
Pointer code can be turn on/off anytime.
The pointer code hack the first 16 characters, if you have more then modify the loop code.
30000000 00000010
Loop for 0x10 times. 0x10 is 16 in decimal