Verykool i285 - Manual (Page 14)

card. Inserting or removing the SIM card is absolutely
prohibited when the external power supply is connected,
otherwise the SIM card or the mobile phone may be damaged.
1.1.4 Inserting the SIM card
n
Power off the
mobile phone, remove the rear cover and battery.
n
Insert the SIM card correctly in the card slot. Finally, install the
rear cover and battery of the mobile phone.
1.1.5 Unlocking the SIM card
In order to prevent illegal use, the SIM card adopts PIN code
(personal identification code) encryption protection.
If this function is selected, the PIN code must be input correctly
each time when you power on the mobile phone to unlock the SIM
card for normal use. Users can disarm the SIM card protection but
illegal use of the SIM card cannot be prevented.
If the PIN code is entered incorrectly three consecutive times, the
SIM card will be locked by the network. The mobile phone will ask
for the PUK code which will be provided by your network operator.
If the PUK code is entered incorrectly 10 times, the SIM card will be
permanently barred.
Note: