Samsung 7100 pen can't be hung. You can write short messages in the air at first, but you can't operate them in the air after screen capture.

Sorry, Note2 Spen can't control the desktop without touching the screen. Spen can indeed hover without touching the screen, but this function is limited to system software and is used when previewing floating windows. At present, it has not been heard that Spen has the function of controlling or moving in suspension (without touching the screen). Only when the pen tip touches the screen will there be a reaction. In suspension, it is just a hollow blue dot.

Supplement: Spen of 7 100 (Note 2), the principle is that when your Spen is close to the fuselage screen, it will be detected. At this time, the blue hollow dot will appear in the corresponding position on the screen. However, why does it only react when touching the screen? In fact, Spen's pen tip is movable, which can be easily pressed, and there will be a reaction when pressed. The best verification method is to gently press the pen tip with your nails when Spen hovers (the range of activity is between touching the screen and the disappearance of the blue dot, that is, the monitored distance), and the reaction at this time will be the same as when Spen touches the screen.

You can control the screen directly with Spen, or write short messages. It may be that the nib has been pressed in because of a foreign body, and now it has recovered. It may be due to inadvertent vibration or collision, shaking, etc., which leads to the separation of foreign objects from the pen tip. , thus forming the so-called "anomaly". Of course, if you are not at ease, I suggest you go to Samsung to get it after sale (I suggest not to go to any small shop or Taobao repair shop, after all, this pen.