[Hilo] right way for SIM switching


#1

[Hilo] We need to support dual SIM card holders in HiloV2. What is the right way for SIM switching and get modem in service again?

Answer: Please power off and then switch the SIM card. And there’s two ways to get modem in service again. One is set POK signal, the other way is to use. Here’re the examples:

  1. Without POK Jumper TB301, and no alarm:
    AT*PSCPOF
    OK
    Switch SIM
    Set POK signal
    +KSUP:0 ----Module will start up after setting POK signal

  2. Without POK Jumper TB301, and with alarm:
    AT+CCLK=“00/01/01,00:12:00+00” —Set the date and time
    OK
    AT+CALA=“00/01/01,00:14:00” —Set the alarm
    OK
    AT*PSCPOF
    OK ----RTC (Real Time Clock) is still ongoing
    Switch SIM
    …Wait…
    +KSUP:0 ----When alarm(00:14:00) arrives, module will start up again