Samsung Gt18190n User Guide

Getting started
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•	Do not remove the protective tape covering the antenna, as this can damage the 
antenna.
•	Do not insert a memory card into the SIM card slot. If a memory card happens to 
be lodged in the SIM card slot, take the device to a Samsung Service Centre to 
remove the memory card.
•	The SIM card slot of your device is only suited for standard SIM cards. Inserting a 
microSIM card or a microSIM card with an unauthorised holder may cause damage 
to the SIM card slot of your device.
•	Use...

Getting started
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Removing the SIM or USIM card and battery
1 Remove the back cover.
2 Pull out the battery.
3 Pull out the SIM or USIM card.   

Getting started
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Charging the battery
Charge the battery before using it for the first time. Use the charger to charge the battery. A 
computer can be also used to charge the device by connecting them via the USB cable.
Use only Samsung-approved chargers, batteries, and cables. Unapproved chargers or 
cables can cause the battery to explode or damage the device.
•	When the battery power is low, the device emits a warning tone and displays a low 
battery power message.
•	If the battery is completely...

Getting started
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•	The device can be used while it is charging, but it may take longer to fully charge 
the battery.
•	If the device receives an unstable power supply while charging, the touch screen 
may not function. If this happens, unplug the charger from the device.
•	While charging, the device may heat up. This is normal and should not affect the 
device’s lifespan or performance. If the battery gets hotter than usual, the charger 
may stop charging.
•	If the device is not charging properly, take...

Getting started
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Reducing the battery consumption
Your device provides options that help you save battery power. By customising these options 
and deactivating features in the background, you can use the device longer between charges:
•	When you are not using the device, switch to sleep mode by pressing the Power button.
•	Close unnecessary applications with the task manager.
•	Deactivate the Bluetooth feature.
•	Deactivate the Wi-Fi feature.
•	Deactivate auto-syncing of applications.
•	Decrease the...

Getting started
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1 Remove the back cover and battery.
2 Insert a memory card with the gold-coloured contacts facing downwards, and then push 
the memory card down.
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3 Push the memory card down into the slot and then slide it backwards until it locks into 
place.
4 Replace the battery and back cover.   

Getting started
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Removing the memory card
Before removing the memory card, first unmount it for safe removal. On the Home screen, tap 
Apps → Settings → Storage → Unmount SD card.
1 Remove the back cover and battery.
2 Push the memory card into the slot until it disengages from the device, and then pull it 
out.
3 Replace the battery and back cover.
Do not remove the memory card while the device is transferring or accessing 
information. Doing so can cause data to be lost or corrupted or damage to the...

Getting started
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Turning the device on and off
When turning on the device for the first time, follow the on-screen instructions to set up your 
device.
Press and hold the Power button for a few seconds to turn on the device.
•	Follow all posted warnings and directions from authorised personnel in areas 
where the use of wireless devices is restricted, such as aeroplanes and hospitals.
•	Press and hold the Power button and tap Flight mode to disable the wireless 
features.
To turn off the device, press...

Getting started
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Locking and unlocking the device
When not in use, lock the device to prevent unwanted operation. Pressing the Power button 
turns off the screen and puts the device into lock mode. The device automatically gets locked 
if it is not used for a specified period.
To unlock the device, press the Power button or the Home button when the touch screen is 
turned off, tap anywhere on the screen, and then flick your finger in any direction.
You can use motion to unlock the device. On the Home...

Getting started
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Switching to silent mode
Use one of the following methods:
•	Press and hold the Volume button down until it switches to silent mode.
•	Press and hold the Power button, and then tap Mute.
•	Open the notifications panel at the top of the screen, and then tap Sound.
Set the device to alert you to various events in silent mode. Press and hold the Power button, 
and then tap 
Vibrate.