Can't disable codes.

[toonlink444]

Your C2 code consists of one instruction; li r3,99.  You could simply use an 04 write to put this instruction at the hook address, because it's only a single instruction.  C2 codes are for complex operations that require more than a single ASM instruction to be changed.

When writing such a code that only requires a single instruction change, you can go to it in the Disassembler, and then type the new instruction that you want to replace it in the One Line Assembler box.  It will automatically change that instruction for you.  Then, you can right-click the new instruction and select "GCT Code" and it will create an 04 code that writes the selected instruction to that address.

I was just practicing using ASM I know that I can do that.

lol this isn´t really that hard.

let´s say, the instruction on adress 80123456 is stw r0,0 (r1)

You replaced it with nop, which does nothing.

To disable this code, put stw r0,0 (r1) back to adress 80123456, where your nop can be seen.
Keep playing and the code is OFF.

I'm a beginer and a 14 year old. I get it know (I think)