Clean and refresh the metal casing’s matte finish
After a few years, my iPhone 6S has taken a beating. There’s scratches around the sim tray and the antenna lines. But what I asking about is the finish. The matte space gray finish has been rubbed off after three years of friction, leaving a glossy bottom half of the device. Is there any way to return the matte finish to the device’s metal casing and plastic accents?