I've downloaded multi touch test apps to test my lumia 620 and I noticed a peculiar behavior.
When it is charging, the screen registers up to 4 touch points perfectly.
When it is not charging, the screen will register single touch point just fine.
It is able to register two points correctly most of the time. When I tried 3 points, it is all over the place. 4 touch points is total fail.
The change of behavior is immediate. As soon as i plug in the cable, it registers multi touch perfectly. When I unplug, multi touch goes awry.
I used several multi touch test app to test and they all gives the same result. The first app tells me that my lumia 620 screen can support up to 4 points
TouchTest | Windows Phone Apps+Games Store (United States)
Multi Touch Test | Windows Phone Apps+Games Store (United States)
MultiTouch Test | Windows Phone Apps+Games Store (United States)
Is this behavior normal or I have a defective 620?
When it is charging, the screen registers up to 4 touch points perfectly.
When it is not charging, the screen will register single touch point just fine.
It is able to register two points correctly most of the time. When I tried 3 points, it is all over the place. 4 touch points is total fail.
The change of behavior is immediate. As soon as i plug in the cable, it registers multi touch perfectly. When I unplug, multi touch goes awry.
I used several multi touch test app to test and they all gives the same result. The first app tells me that my lumia 620 screen can support up to 4 points
TouchTest | Windows Phone Apps+Games Store (United States)
Multi Touch Test | Windows Phone Apps+Games Store (United States)
MultiTouch Test | Windows Phone Apps+Games Store (United States)
Is this behavior normal or I have a defective 620?