Don't Use iPhone 3G and 3GS Above 35 Degrees Centigrade Says Apple

Apple has acknowledged that its new iPhone 3GS may be having some issues with regards to temperature its new smartphone can reach under normal circumstances.

The company has been forced to issue a set of guidelines that will help users keep their handsets within a comfortable temperature range, thereby avoiding overheating problems.

The iPhone 3/3GS they say, should be operated "in a place where the temperature is between 0º and 35º C". Failure to do so could shorten the battery life or cause the phone to temporarily stop working.

The manufacturer suggests that the phone be stored in places where "the temperature is between -20º and 45º C (-4º to 113º F)". Temperature in cars, it says, will often exceed the upper limit.

It also advises users not to use resource-hungry applications like streaming media or GPS over a long period as they put significant strain on the device's hardware.

Failure to follow these could cause the display to dim, weaker cellular signal and finally a temperature warning may appear on the device's screen saying that the "iPhone needs to cool down before you can use it".

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Apple's move comes after reports that white iPhones tend to turn pinkish brown quickly due to overheating. Furthermore, it also looks like the new iPhone OS 3.0 update might cause older iPhone 2G and 3G to overheat.

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