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原帖由: Jason Boron ,

标题:

Touch screen only works when back is off...

文本:

I just bought a replacement screen and it worked for 2 days and is now unresponsive. I just found something very interesting in troubleshooting it. If I leave the back cover off, the touch screen works perfectly, if I put the cover on, the screen does not respond to touch. I have checked for damage, bad seating, areas that may be applying pressure to components, I see nothing wrong at all. I did notice a few areas of electrical contact between the back cover and the main board so maybe something is grounding out for some reason but I do not see this occurring. Anyone ever run into anything like this?

设备:

Samsung Galaxy S4

状态:

open