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Part of touch screen not responsive

OP ccheung

17th August 2014, 03:53 AM   |  #1  
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I have new stock 20a 4.2.2. Then I OTA upgraded to 4.4.2 20d without problem. I used Towel root to root the tablet. The table works fine up to this point. Then I installed TWRP and installed custom ROM. Since then the top part of touchscreen is not response. I used LG mobile support tool to rollback the tablet to stock 20d. But the problem still exists. Any clue?

One side note. I also applied wet screen protector after I installed TWRP. At first I thought it was the problem of the screen protector, but I have peeled it off but the problem still exists.
17th August 2014, 04:11 AM   |  #2  
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Quote:
Originally Posted by ccheung

I have new stock 20a 4.2.2. Then I OTA upgraded to 4.4.2 20d without problem. I used Towel root to root the tablet. The table works fine up to this point. Then I installed TWRP and installed custom ROM. Since then the top part of touchscreen is not response. I used LG mobile support tool to rollback the tablet to stock 20d. But the problem still exists. Any clue?

One side note. I also applied wet screen protector after I installed TWRP. At first I thought it was the problem of the screen protector, but I have peeled it off but the problem still exists.

I seem to remember a post in the accessories section about screen protectors and someone applied a wet style one and had the same or similar issue. I think they let it dry out for a couple days. The general consensus is the gpad is sealed very well.
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