How to upgrade the core of FireWire Elite Level 3 elements to Level 4?

The core of the element is a Samsung Grenade, which is upgraded by purchasing the required items.

The first upgrade requires 40 weapons upgrade crystals, and the second upgrade requires 160 weapons upgrade crystals and 30 weapons upgrade chips.

There are four extreme forms of element core halo. Element core evolved from Samsung to four-star, and four-star evolved into five-star. After right-clicking, the holder can select the number key 1234 to switch modes, and each mode has different effects and abilities.