It seems that LG's newest flagship phone G4 suffers from some problems with the touchscreen. In fact, the topic on XDA forum, which now has a larger number of responses, says that the device fails to detect rapid pressure and coating and prevents Knock On and Knock Code function to work properly.
XDA has even conducted a survey on this issue, and 200 of those who have so far participated the in it, over 60 percent answered that they have this kind of problems. He also published the video that confirms that the G4 phone has these problems.
