I bought a new Xbox 360 7/8/2014 model… Can we modify these model.?
you mean physically mod the console its self? I think so but it isn’t recommended with that model
You are referring to the Xbox 360 Slim E (Elite) POST XB1 release date.
That would make it a Winchester, which is a revised Corona motherboard , with patches for R.G.H. mods that were installed and released in the 500GB console versions. (not sure if this means 4GB mobo chip versions are exempt from carrying the patch)
I am fairly sure it is NOT possible at all, however I am not the one best to be answering questions like this.