Crazy touch screen. Digitizer or damaged motherboard?
I bought the Nexus 4 in March 2013 I dropped in March 2014 I changed the screen and digitizer with frame (50 € approx.) And had worked flawlessly since. 7 months after the touch screen works alone, open and close programs, and when I hit the screen, the touch is not accurate.
Sometimes it works correctly and sometimes becomes completely crazy.
Can be damaged a chip that is heated and erroneous way works? Is the digitizer?
I deleted the contents of the smartphone and I installed the Stock 4.4.4 ROM and Cyanogenmod 11 and I changed the battery but still happening.
Does anyone have more happens? I bought a Motorola Moto G (2014), and although it works great better the Nexus and would like to fix it without spending much money.
thank you very much
Is this a good question?