It's a binary file. You can't copy and paste it from/to a text editor. This technique is guaranteed fail. Do you think if you deleted write.exe from a Windows installation you could use this same technique to replace it? (Try it, see what happens).
<simplification>The reason for this is that - to a text editor - binary files contain special system characters which cannot be displayed, copied or written.</simplification>

As others have said: Reflash your device. Don't delete things you don't understand.

Also, don't ask for the same thing five times, and don't ignore people trying to help you. Once is enough. If you already know better than everyone here, you don't need our help.

Good luck!