Samsung SM-J330F User Manual page 7

Basics
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When using large amount of data for syncing with the cloud, email, or other accounts
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When using a navigation app in a car while the device is placed in direct sunlight
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When using the mobile hotspot and tethering feature
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When using the device in areas with weak signals or no reception
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When charging the battery with a damaged USB cable
• When the device's multipurpose jack is damaged or exposed to foreign materials, such as
liquid, dust, metal powder, and pencil lead
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When you are roaming
Do the following when the device heats up:
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Keep the device updated with the latest software.
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Conflicts between running apps may cause the device to heat up. Restart the device.
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Deactivate the Wi-Fi, GPS, and Bluetooth features when not using them.
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Close apps that increase battery consumption or that run in the background when
not in use.
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Delete unnecessary files or unused apps.
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Decrease the screen brightness.
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If the device overheats or feels hot for a prolonged period, do not use it for a while. If
the device continues to overheat, contact a Samsung Service Centre.
Device limitations when the device overheats
When the device heats up, the features and performance may be limited or the device may
turn off to cool down. This feature is only available on supported models.
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If the device becomes hotter than usual, a device overheating message will appear. To
lower the device's temperature, the screen brightness and the performance speed will be
limited and battery charging will stop. Running apps will be closed and you will only be
able to make emergency calls until the device cools down.
•
If the device overheats or feels hot for a prolonged period, a power off message will
appear. Turn off the device, and wait until it cools down.
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