Position updating method and mobile terminal
A technology of a mobile terminal and an update method, applied in electrical components, wireless communication, network data management and other directions, can solve problems such as device data update failure, CS domain service failure, etc., and achieve the effect of improving service connection capability and success rate
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[0020] figure 1 It is a schematic flowchart of Embodiment 1 of a location updating method provided by the present invention. like figure 1 As shown, the location update method includes:
[0021] S100. The mobile terminal determines that a cell to which the first SIM card supporting the 2G / 3G standard is attached changes.
[0022] The mobile terminal in each embodiment of the present invention is an LTE dual-card dual-standby terminal, that is, the terminal has a SIM card supporting the LTE standard and a SIM card supporting the 2G or 3G standard. Standby in 3G network. In the early stage of LTE development, when the LTE standard SIM card provides CS domain services for users, it needs to fall back from the LTE network to the 2G / 3G network, that is, the LTE standard SIM card has the CSFB function. For convenience of description, in each embodiment of the present invention, the SIM card supporting the 2G / 3G standard is called the first SIM card, and the SIM card supporting t...
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