Samsung Galaxy S4 Customer Consultant Manual page 89

Part 2 > Q123: General Guide- for device getting hot during use (5/5)
Q : When I'm using my Galaxy S4 , I often feel my device is hot to the touch. Is my device faulty?
3. Factors < The specific function of Galaxy S4>
1) Galaxy S4 supports two cameras with high performance (13M rear camera + 2M front camera).
When the device uses both cameras at the same time, CPU processing becomes faster because two cameras work
simultaneously and compose images accordingly and the device can generate heat as a result.
However this is normal - in addition Samsung devices observe the International Safety Specification (EN563).
2) Samsung provides periodic S/W upgrades to further optimize the software features in order to provide added value for
Galaxy S4 owners throughout the device's whole lifespan.
You can upgrade your device S/W via Kies or FOTA for the further optimization of your device.
FOTA: Menu Path : Settings > (More)About
device > Software update > update
Kies> From http://www.samsung.com/kies, you can download the Kies tool.
< Detail guide >
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