Mineral Oil Between Glass and LCD
I've got what I'm pretty sure is a new one. My iPhone 4S (AT&T) was having problems muting the microphone as it believed a headset was plugged in. My solution was to deliver a short spray of WD-40 into the headphone jack, which solved the problem but caused a new one. Now there is a small blob of oil visible on top of the LCD. I'd like to know if it might be possible to clean it out by taking apart the phone, or if I would be better off replacing the whole front LCD/digitizer combo.
You can sort of see the blob in this photo, right in the middle of the screen. There is a very faint discoloration and darkening around it, leading up to the headphone jack where it started, but the blob in the middle is the worst. If I press hard I can get it to disperse but it quickly re-forms.