Geeetech

why when i change the steps per mm Z axis and upload the firmware (all done) nothing is changing .I have the same speed as it was before.i have enabled EEPROM also ..Is it anything else i need to do or my board has problem

thx i fix
it i didn't erase the //

I did all parameters i saw for 3d touch to firmware but when i tried to upload to my printer i get this message
What i need to do more please