One of the most common places for an iPhone to end up is in the toilet. Different liquids can cause different issues to the iPhone. Some substances such as salt water can corrode the internal components very quickly. In a matter of hours or a few short days corrosion from the salt can eat away at the vital and miniscule connections inside the iPhone. The iPhone’s logic board or motherboard is very delicate and liquid / water damage can in fact ruin components if not caught in time.