Q: Temperature Warning

You probably damaged it with the wet napkin... water and electronics don't mix well.  Put it in a bowl of rice for several days... you might get lucky.

Edit - use uncooked rice.

The rice acts like a desicant to remove any moisture from the device.

Ninasarpong wrote:

 

i left it wrapped in a slightly soaked napkin and left it on the whole night

You can try the rice thing... but honestly, at this point, you'll probably save yourself some aggravation if you just break down and make an appointment at the genius bar.  I have a feeling the best case scenario is that you'll be eligible for a subsidised upgrade from your carrier.... If not, an out of warranty replacement will cost you $149.

AT least a week.