Actually, the differences between high copy parts and OEM can be found from the appearance. Here we show you guys how to tell the copy parts from OEM in 4 different ways.

Appearance

Firstly, the LCDs looks in different color. OEM parts looks more dark and gray, while the copy parts with a little bit bluish. The difference is due to the assembly technology. Light reflect more when crossing the Copy LCD.

Secondly, the brightness displayed on the LCDs are different. Obviously, the copy parts are brighter. To some degree, you may find the subtle difference if you pay more attention to it. While the OEM parts has been tested for thousands of times. The brightness is adjusted to the best condition.

Thirdly, there are some distinctions when the LCDs display different colors. For example, in dark display, OEM LCD looks bluish, meanwhile, the copy part is more dark bluish. More details, below is the pic for you guys to check.

Fourthly, there has 4 legible lines in the rim of the OEM LCD. As for the copy LCD, the lines are blurry and can't be found easily.