Security Settings - Zte A15 User Manual

If you have selected a service provider manually, you have to manually select again or
return to the Automatic option to select the service provider when you switch to the SIM
card of another network.
4.5.6

Security Settings

Security features protect you from illegal use of your phone and SIM card.
Note: You need to input handset lock code to enter security settings interface. The default
handset lock code is 1234. Please change it with your own private password as soon as
possible.
SIM Password: SIM password (PIN code) can prevent your SIM card from illegal
use. Select On/Off to enable or disable SIM password protection; select Change
PIN to set a new PIN code.
Note: Three consecutive times of wrong PIN code inputting will lock the SIM card. Then,
the PUK code is needed to unlock the SIM card. The PIN code and the PUK code may be
provided to you together with the SIM card. If not, please contact with your network
service provider. The default PIN code is 1234. Please change it with your own private
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