Many friends have noticed the mysterious “patch” on the right side of the iPhone 12, which has also caused many questions from users. The “patch” is a vertical bar, located below the power button, and has not been indicated on Apple’s specification page. However, the verge has confirmed that it is the “window” of mmwave 5g antenna. < / P > < p > currently, only iPhone 12 models sold in the United States include support for mmwave 5g, so the vertical bar only appears on these devices. Other iPhones that do not support mmwave 5g will not have this “logo”. < / P > < p > this mysterious vertical bar first appeared in the disclosure diagram a few months ago, which was considered as the smart connector or contact point of the small apple pencil, because its appearance is very similar to the magnetic Apple pencil contact point on the iPad Pro model. Chinese version of K-car: reading a10e design drawing exposure