Creating tamper proof for frimware version4.1.5

Hi,
Iam trying to tamper My CubeOrange I followed this steps
Secure bootloader and frimware
Then I noticed that the bootloader and frimware version is 4.4.0 but I need stable version 4.1.5 to be Tamper proofed how can I do this.Can anyone help me.
Thankyou