Main board, and method of implementing network/card locking and mobile terminal in which network/card locking is implemented

A method of implementing network/card locking for a mobile terminal, wherein a main board of the mobile terminal is connected to a user identification unit, a central processing unit and an encryption chip of the mobile terminal;

• a network/card locking requirement from a mobile operator is preset for the mobile terminal, the method further comprising:
• transmitting, by the encryption chip, a blocking request to the central processing unit when the encryption chip detects authentication-related information that is provided by the user identification unit to the central processing unit, and determines that the authentication-related information does not meet the preset network/card locking requirement from the mobile operator;
• blocking, by the central processing unit, the mobile terminal from normal operation when receiving the blocking request,
• wherein the card locking requirement from the mobile operator comprises:
• the MIN in the IMSI included in the authentication-related information is within a number segment specified by the mobile operator;
• wherein the determining that the authentication-related information does not meet the preset card locking requirement from the mobile operator comprises:
• determining the authentication-related information as not meeting the preset card locking requirement from the mobile operator when it is determined that the MIN in the IMSI included in the authentication-related information is not within the number segment specified by the mobile operator.

A mobile terminal in which network/card locking is implemented, comprising:

• a main board, a central processing unit, a user identification unit and an encryption chip;
• wherein
• the main board comprises:
• a first pad;
• a second pad connected to the first pad;
• and a third pad connected to both the first pad and the second pad;
• the user identification unit is connected to the first pad, and is configured to provide the central processing unit with authentication-related information for authenticating a mobile terminal user;
• the central processing unit is connected to the second pad, and is configured to receive and process the authentication-related information, and to block the mobile terminal from normal operation when receiving a blocking request from the encryption chip;
• the encryption chip is connected to the third pad, and is configured to transmit the blocking request to the central processing unit when detecting that the authentication-related information provided by the user identification unit to the central processing unit does not meet a preset network/card locking requirement from a mobile operator, wherein, the authentication-related information comprises:
• an International Mobile Subscriber Identification (IMSI) and an authentication algorithm;
• the IMSI is composed of a Mobile Country Code (MCC), a Mobile Network Code (MNC) and a Mobile Identification Number (MIN);
• wherein the network locking requirement from the mobile operator comprises:
• the MCC in the IMSI included in the authentication-related information being consistent with an MCC of network of the mobile operator, and the MNC in the IMSI included in the authentication-related information being consistent with an MNC of network of the mobile operator;
• and
• wherein the encryption chip comprises a first detection module and a first request module;
• wherein
• the first detection module is configured to trigger the first request module, when detecting that the MCC in the IMSI included in the authentication-related information that is provided by the user identification unit to the central processing unit is inconsistent with the MCC of network of the mobile operator, and/or the MNC in the IMSI included in the authentication-related information is inconsistent with the MNC of network of the mobile operator;
• and
• the first request module is configured to transmit the blocking request to the central processing unit.

A mobile terminal in which network/card locking is implemented, comprising:

• a main board, a central processing unit, a user identification unit and an encryption chip;
• wherein
• the main board comprises:
• a first pad;
• a second pad connected to the first pad;
• and a third pad connected to both the first pad and the second pad;
• the user identification unit is connected to the first pad, and is configured to provide the central processing unit with authentication-related information for authenticating a mobile terminal user;
• the central processing unit is connected to the second pad, and is configured to receive and process the authentication-related information, and to block the mobile terminal from normal operation when receiving a blocking request from the encryption chip;
• the encryption chip is connected to the third pad, and is configured to transmit the blocking request to the central processing unit when detecting that the authentication-related information provided by the user identification unit to the central processing unit does not meet a preset network/card locking requirement from a mobile operator,
• wherein the card locking requirement from the mobile operator comprises:
• the MIN in the IMSI included in the authentication-related information being within a number segment specified by the mobile operator;
• wherein the encryption chip comprises a second detection module and a second request module;
• and wherein
• the second detection module is configured to trigger the second request module, when detecting that the MIN in the IMSI included in the authentication-related information that is provided by the user identification unit to the central processing unit is not within the number segment specified by the mobile operator;
• and
• the second request module is configured to transmit the blocking request to the central processing unit.

A mobile terminal in which network/card locking is implemented, comprising:

• a main board, a central processing unit, a user identification unit and an encryption chip;
• wherein
• the main board comprises:
• a first pad;
• a second pad connected to the first pad;
• and a third pad connected to both the first pad and the second pad;
• the user identification unit is connected to the first pad, and is configured to provide the central processing unit with authentication-related information for authenticating a mobile terminal user;
• the central processing unit is connected to the second pad, and is configured to receive and process the authentication-related information, and to block the mobile terminal from normal operation when receiving a blocking request from the encryption chip;
• the encryption chip is connected to the third pad, and is configured to transmit the blocking request to the central processing unit when detecting that the authentication-related information provided by the user identification unit to the central processing unit does not meet a preset network/card locking requirement from a mobile operator,
• wherein the central processing unit comprises:
• an authentication module and a control module;
• and wherein
• the authentication module is configured to receive and process the authentication-related information;
• the control module is configured to block the mobile terminal from normal operation when receiving the blocking request from the encryption chip.