In some examples, the method further includes: activating the deactivated SIM card of the second device after the second device exits the server mode.
If the second device exits the server mode, the SIM card set in the deactivated state in the second device can be automatically activated, so that the second device can use the SIM card information that has not been shared any more for cellular mobile communication in the future.
In the example of the present disclosure, the second device autonomously activates the SIM card in the deactivated state after exiting the server mode, thus there is no need for user operations, causing the characteristics of high intelligence.
In some examples, the method further includes: after the second device enters the server mode, determining whether the interactive channel between the second device and the first device has been established; in response to having not established the interactive channel between the second device and the first device, establishing the interactive channel between the second device and the first device.
In this example, the interactive channel is established through a preset connection manner. The establishment of the interactive channel has been described above, and will not be repeated here.