Post coffee dunk, Contact Cleaner vs Backlight
My wife dropped her iPhone 4 in a shallow cup of coffee top first. The phone was submerged to about the ear piece from the top side. After the dunk the headphone sensor must have been gummed up because the speaker didn't work and had the headphone symbol active at the top of the screen.
I shut the phone down and got my contact cleaner and gave the phone a good spraying into the earphone jack, earpiece and volume and power buttons. I then put the phone in a ziplock baggie with a healthy scoop of silica desiccant for 24hrs.
After this the speaker works but the power button is a little sticky. What worries me is the screen has developed some very bright spots on the backlight. The pixels render properly but you can see the bright spots behind the LCD.
I need to disassemble the phone so I can clean out the top area better to remove the remaining coffee. Is contact cleaner incompatible with the backlight? Should I proceed differently?
Is this a good question?