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a key. "Hold down a key" refers to pressing a key and keeping it depressed for 2 seconds
or longer.
The descriptions and functions of keys depend on the model of your phone.
2.3 Using the touchscreen
Your phone provides many touch keys in the Main screen. To use these keys correctly, calibrate
the touch screen in advance (see "Calibrator"). Meanwhile please follow the instructions:
• Do not touch the screen with wet hands.
• Do not touch the screen with great forces.
• Do not touch the screen with metallic or conductive objects.
2.4 Connecting to the network
2.4.1 Inserting and removing the SIM card
• Turn off the phone; remove the battery and unplug other external power supplies. Insert
the SIM card into the SIM holder as shown in the phone.
• When you need to remove the SIM card, turn off the phone, remove the battery and then
remove the SIM card from the holder.
Warning: Do turn off your phone before removing the SIM card. Never insert or remove
the SIM card when an external power supply is connected, as this may cause damage to
the SIM card.
Attention:
Note regard the use of micro/nano SIM adapter on TREVI products Smartphone and tablet
TREVI with SIM card slot are designed to accommodate only SIM in the standard format.
The use of micro/nano SIM card with the adapter it's not recommended as it can cause
breakage of device and micro/nano SIM card. TREVI is not liable for damage caused by the
use of micro/nano SIM adapters. TREVI reserves the right to refuse warranty on products
with defects to the SIM slot caused by the use of micro/nano SIM adapters.
2.4.2 Turning your phone on and off
To turn on your phone, hold down the power key on the top; to turn off the phone, hold
down the power key.
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