Hex Cracking

[Viruzaur]

Does anyone experience with cracking? If so what am I doing wrong? I followed a chinese bro's instruction

Find a complete version of winhex, open the exe file with winhex, select the two sections of "4D5A90" and delete them, then save it. For details, see the post.

but the game exe said it's corrupt, after I tried to open it. To be more precise, I used winhex on
光翼戦姫エクスティアF パラレルエピソード2 リユニオン, and then selected the first two 4D5A90 and deleted them by pressing the Delete button.