Rumors and reports of overheating iPhone 3GS handsets began circulating last week, not long after Apple had begun selling the new phone.
Now Apple has issued a warning that people should not leave the device in cars in hot weather, and saying that the phone will give a temperature warning if it becomes too hot.
The company has said that the phone might become hot if left in a hot car, or used in direct sunlight “for extended periods of time,” or if certain applications, such as GPS or listening to music, are used in hot conditions or in direct sunlight for long periods.
One possible culprit, according to the Guardian, might be the battery, especially when it hasn’t been through several recharges. It shouldn’t be the chip, although, the processor is faster than on the 3G – 600 MHz as opposed to 400MHz.