Sigma Comfort 50 Mini 4, Руководство пользователя

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Number keys, * key and # key
Press number keys 0 through 9 to input or edit
state to input numbers and characters;
In idle screen, you can press and hold * to
lock/unlock keypad.
Press two times the key * to input "+" in
standby interface. When the symbol "+"
appears,
Getting started
Installing the SIM Cards and the Battery
A SIM card carries useful information,
including your mobile phone number, PIN
(Personal Identification Number), PIN2, PUK
(PIN Unlocking Key), PUK2 (PIN2 Unlocking
Key), IMSI (International Mobile Subscriber
Identity), network information, contacts data,
and short messages data.
Note:
After powering off your mobile phone, wait for