Why does my iPhone 4 touchscreen become unresponsive when it becomes warm?

[iMore Question]

my i-phone 4 touchscreen becomes unresponsive when it becomes warm

my touchscreen does not work properly when the phone gets warm. This can happen when i have it in my pocket or even when the room is warm i.e if it's left in the sun.

 

[Bigeric23]

Re: my i-phone 4 touchscreen becomes unresponsive when it becomes warm

You might need to get it looked at by a professional (i.e., Apple).