- 01-19-2013, 08:51 AM #1
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?
01-19-2013, 09:10 AM #2
- 1,359 Posts
I don't know about the 620 specifically, but I would imagine that's a defect of some sort... Normally phones that perform differently when charging vs battery are worse on the charger. There were a few WP7 handsets that users complained were laggy and unresponsive while charging. I would speak to somebody at a Nokia Care Center about that.
And please let me know what they tell you, as I'm looking at the 620 for my mother for her first smart device.
01-19-2013, 09:39 AM #4
- 113 Posts
01-24-2013, 02:07 AM #6
- 3 Posts
Hey pengfoong, have you solved this issue yet? My lumia 620 also have the same problem, It is bought in Abu Dhabi in Axiom Telcom, my problem is that I'm from the Philippines and this was just a gift for me. I can't return it back to the store because the phone is already here in the Philippines. If you already found out the solution, kindly inform me about it. Thank you very much
- 01-24-2013, 02:32 AM #7
Do you have static charge on your body or any object that's touching the phone? Try again while grounding yourself and see if that makes difference. I remember some old phones touch screen behaving a little differently depending on the surface it's resting on.
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