ZTE Corporation 840Z Manuale Utente
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7.7.4 Security
Security features help to prevent the phone from unauthorized use.
1. Security codes
The phone and (U)SIM card are protected against misuse by several security codes. Keep these
confidential numbers in a safe place where you can access them again if required.
confidential numbers in a safe place where you can access them again if required.
(1) PIN code
The PIN code is the password provided by your service provider. If you activate your PIN code,
the phone will prompt to enter it. You can deactivate this feature but you risk unauthorized use
of the phone. Some service providers do not permit deactivating the control.
the phone will prompt to enter it. You can deactivate this feature but you risk unauthorized use
of the phone. Some service providers do not permit deactivating the control.
Notes: If you enter the PIN incorrectly three times in a row, the (U)SIM card will be locked. You
have to enter the PUK for the card in order to unlock it. Please contact your service provider to
obtain a PUK.
have to enter the PUK for the card in order to unlock it. Please contact your service provider to
obtain a PUK.