Network locking method of dual-card dual-standby mobile phone

Abstract

The invention designs a network locking method of a dual-card dual-standby mobile phone. The network locking method comprises the following steps that in a condition that an SIM2 (subscriber identity module 2) is decided first and an SIM1 is decided later when two cards are inserted, a KAL_FALSE value, namely a network locking status value, and a residue degree value which is used for deciding a network locking status and is 1, namely the function parameter value of an OUT type, which is transmitted from a network locking decision function and is 1, are first returned into the network locking decision function; thus, after the decision of the network locking status of the SIM1 is completed, an MMI (man-machine interface) layer requires to input the network unlocking password of the SIM2; the process of the inputting is processed at a background; and subsequently, the network locking status of the SIM2 can be decided again in the network locking decision function. At the moment, the processing can be carried out according to the above first condition, and when the network locking status of the SIM2 is decided, the value of smn_sim1 locked status returned into the network locking decision function is the network locking status of the SIM1.

Description

technical field [0001] The invention relates to a mobile phone system, in particular to a dual-card dual-standby mobile phone network locking method. Background technique [0002] With the development of society, the competition in the mobile communication market is becoming more and more fierce. Many mobile operators have launched the marketing method of buying a number and getting a mobile phone to attract users through mobile phones. In order to ensure that the mobile phone will always use the network of the operator, the mobile phone needs a special network lock judgment function. On the other hand, with the development of society, dual-card dual-standby mobile phones are used more and more, and the combination of network lock function and dual-card dual-standby mobile phones has certain problems. Due to the different physical characteristics of SIM cards on the market (SIM card capacity, STK function, etc.), even the physical characteristics of SIM cards of the same op...

AI Technical Summary

Problems solved by technology

In the dual-card dual-standby mobile phone on the MTK platform, the different physical characteristics of the SIM cards will cause the reading time of the two SIM cards to be different when the mobile phone software is initialized, so it is possible that the SIM2 is read first, and then the underlying software will Lock the card to determine it, so that SIM2 cannot determine the network lock status of SIM2 based on the network lock status of SIM1

It is also possible that the SIM1 card needs to enter the power-on PIN code, and the user will be required to enter the PIN code of the SIM1 card after the SIM2 network lock judgment is completed, and then enter the SIM1 card network lock judgment, and the SIM2 card cannot be locked according to the SIM1 card. Network status to determine the locked network status

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