iPhones in danger of overheating

iPhone 3GS

Apple has warned iPhone users to keep a close eye on their devices during the current heat wave to avoid encountering overheating related problems.

Charging issues, dim displays and weakened signals, are all unwelcome by-products of iPhones being used or stored outside of optimum temperatures, according to a support notice on the company's website.

The heat issue affects both the iPhone 3G and the latest generation, the iPhone 3GS.

"Operate iPhone 3G and iPhone 3GS in a place where the temperature is between 0 and 35 C (32 to 95 F). Low- or high-temperature conditions might temporarily shorten battery life or cause the device to temporarily stop working properly," Apple's support page states.

Similarly, Apple advises users that their phones should be stored at temperatures of between -20 and 45 C (-4 to 113 F) and to avoid leaving their devices in cars because their temperatures are often outside of this scale.

In certain cases, the iPhone will display a temperature warning screen that will flag to users that their phones need to cool down before use. They may still be able to make emergency calls, however.

Maggie Holland

Maggie has been a journalist since 1999, starting her career as an editorial assistant on then-weekly magazine Computing, before working her way up to senior reporter level. In 2006, just weeks before ITPro was launched, Maggie joined Dennis Publishing as a reporter. Having worked her way up to editor of ITPro, she was appointed group editor of CloudPro and ITPro in April 2012. She became the editorial director and took responsibility for ChannelPro, in 2016.

Her areas of particular interest, aside from cloud, include management and C-level issues, the business value of technology, green and environmental issues and careers to name but a few.