Trevi FLEX PLUS 90 4G Manual De Usuario página 29

• Please do not use alcohol, thinner, benzene or other solvents to wipe the mobile phone.
• A dirty outlet will cause poor electrical contact, lose of power and even inability to
recharge. Please clean regularly.
An SIM card carries useful information, including your mobile phone number, PIN (Personal
Identification Number), PUK (PIN Unlocking Key), IMSI (International Mobile Subscriber
Identity), network information, contacts data, and short messages data.
Note: After powering off your mobile phone, wait for a few seconds before removing or
inserting an SIM card.
Exercise caution when operating an SIM card, as friction or bending will damage the SIM card.
Properly keep the mobile phone and its fittings such as the SIM cards beyond children's reach.
Installation
- Hold the End key for a while to power off the mobile phone
- Push the back cover above the battery and remove it.
- Pull the left battery buckle outward and then lift the battery away.
- Insert the SIM card into the SIM card slot lightly with the corner cutting of the card
aligning to the notch of the slot and the gold plate of the card facing download, till the
SIM card cannot be further pushed in.
- With the metallic contacts of the battery facing the metallic contacts in the battery slot,
press the battery down until it locks into place.
- Using code
The mobile phone and the SIM cards support sorts of passwords, in order to prevent
the phone and the SIM cards from being misused. When you are prompted to input any
of the codes mentioned below, just input the correct code and then press the ok key. If
you input a wrong code, press the Right soft key to clear it and then input the correct code.
- PIN
The PIN (Personal identification number, 4 to 8 digits) code prevents your SIM card from
being used by unauthorized people. In general, the PIN is supplied with SIM card by the
network operator. If PIN check is enabled, you need to input the PIN each time when you
2. Installing the SIM card and battery
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