Broken LCD Cannot Detect Touch Sensor

apislerr

macrumors newbie
Original poster
Jan 8, 2014
1
0
hi, my iphone 4 has been broken lcd. After that i changed back new LCD iphone. But , the problem is when i touch alphabet "p" at keyboard, it cannot detect my finger sensor. What the reason?
thank you for your respond.:)
 

mKTank

macrumors 68000
Jul 2, 2010
1,537
3
hi, my iphone 4 has been broken lcd. After that i changed back new LCD iphone. But , the problem is when i touch alphabet "p" at keyboard, it cannot detect my finger sensor. What the reason?
thank you for your respond.:)
The LCD panel isn't responsible for touch input. There is an entirely different layer called the digitizer whose job is to recognize touch input. I suspect it got damaged along with the LCD panel but wasn't replaced.
 

Applebag

macrumors newbie
Jan 13, 2014
4
0
See if the P button works in landscape mode. If it's not clickable in either orientation, it could be software which could be fixed possibly with a hard reset (hold lock button and home button together for 9 seconds). If not, it's a bad Dig. The good news is that you can only replace the digitizer/LCD as an assembly because they are fused together at the factory. You can find replacements on eBay if you were so inclined to attempt a repair yourself. If that's too daunting, let me know and I can provide you with more options.
 
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