We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message
80,258 News Articles

Apple admits iPhone 3GS heat problems

How to keep your iPhone cool

Apple has posted a special iPhone 3GS and 3G temperature warning on its official support pages.

The Apple iPhone support page, "Keeping iPhone 3G and iPhone 3GS within acceptable operating temperatures", states:

"Operate iPhone 3G and iPhone 3GS in a place where the temperature is between 0º and 35º C (32º to 95º F).

"Low- or high-temperature conditions might temporarily shorten battery life or cause the device to temporarily stop working properly.

"Store iPhone 3G and iPhone 3GS in a place where the temperature is between -20º and 45º C (-4º to 113º F).

iPhone 3GS temperature warning

"Don't leave the device in your car, because temperatures in parked cars can exceed this range.
If the interior temperature of the device exceeds normal operating temperatures, you may experience the following as it attempts to regulate its temperature:

  • The device stops charging
  • Display dims
  • Weak cellular signal
  • Temperature warning screen appears with the message "iPhone needs to cool down before you can use it" (see image above)"


Reports started last appearing last week that the new iPhone 3GS could be suffering from over-heating problems - although one respondent was keeping his iPhone under his pillow when he slept.

Apple's support document gives some credence to these reports, although whether it's an iPhone problem or general smartphone/portable device issue remains to be seen.

Is iPhone 3GS really too hot to handle?

iPhone 3GS review


IDG UK Sites

Best January sales 2015 UK tech deals LIVE: Best New Year bargains and savings on phones, tablets,...

IDG UK Sites

Chromebooks: ready for the prime time (but not for everybody)

IDG UK Sites

2015 visual trends: 20 leading designers & artists reveal what should be inspiring us in 2015

IDG UK Sites

10 iPhone app exclusives that make Android users jealous