Multi-card Mobile Terminal SIM Data Dumping Method
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Solution Overview
Problem
Current mobile terminals with SIMLock technology restrict users from using SIM cards from other operators, making it difficult for users to switch service providers while retaining their original telephone numbers, and there is a lack of effective utilization of dual-card and multi-card technologies.
Innovation Solution
A multi-card mobile terminal with an SIM card data dumping method that allows data from a secondary SIM card to be transferred to a primary SIM card when the secondary SIM card is locked out, using a white list to determine locked SIM cards and prompting users to copy short message data, enabling continued use of essential services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SIMLock technology is used to restrict users from using SIM cards of other operators, then operator control and network security are improved, but user flexibility and ability to switch service providers deteriorate
Solution Approach 1:
The patent segments the SIM card functionality into two independent slots (first SIM card slot and second SIM card slot), allowing each slot to operate independently with different SIM cards from different operators. This segmentation enables users to maintain both operator affiliations simultaneously without conflict, resolving the contradiction between operator control and user flexibility.
Solution Approach 2:
The patent changes the parameter of SIM card configuration from single-operator restriction to multi-operator support by implementing dual SIM card functionality. The system allows the first SIM card to be locked to its operator while the second SIM card can be from a different operator, changing the operational parameters to enable both control and flexibility.
2Adaptability or versatility
If dual-card-dual-standby technology is implemented, then user ability to use multiple operators is improved, but operator control and SIMLock effectiveness deteriorate
Solution Approach 1:
The patent applies local quality by implementing different control mechanisms for different SIM card slots. The first SIM card slot maintains SIMLock technology for operator control, while the second SIM card slot operates without SIMLock restrictions. This localized differentiation allows each slot to have optimized properties for its specific function, resolving the contradiction between multi-operator capability and operator control.
3Adaptability or versatility
If users want to switch from one operator to another, then service provider change is enabled, but retention of original telephone number becomes difficult
Solution Approach 1:
The patent enables preliminary action by allowing users to proactively insert and configure a second SIM card from a different operator before needing to switch services. Users can prepare their dual SIM configuration in advance, maintaining their original number on the first SIM card while preparing the second SIM card for future use, thus avoiding the loss of the original telephone number.
Data Source
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AI summary
The present disclosure relates to the technical field of mobile terminals and discloses a multi-card mobile terminal and an SIM card data dumping method thereof. An MCC and an MNC of a secondary SIM card is compared with data in a white list preset in the mobile terminal. If the secondary SIM card is to be locked, short message data is copied from the secondary SIM card, saved into a short message function module of the mobile terminal and labeled as being from the secondary SIM card. Thereby, data of the secondary SIM card can be dumped out so that some of the data can be used by a primary SIM card when the secondary SIM card is locked out while the primary SIM card is not locked out. By SIMLocking the secondary SIM card through use of the primary SIM card, short message data and short message sender data in the secondary SIM card are dumped to the mobile phone for use by the primary SIM card. This helps a user to switch services from one operator to another without substantially affecting use of the mobile terminal, which represents conveniences for the user.