I need to turn off dual-SIM support on the SC20 module because our device will only have one SIM slot and we don’t need multi-SIM settings in the system settings. We are running Android 8.1.0 on the SC20.
I tried to change the value of property “persist.radio.multisim.config” from “dsds” to “ssss” or “none” but it doesn’t work. The multi-SIM settings disappeared from the system which is nice, but the SIM card stopped working. The modem does not connect to the mobile network and does not even require entering a PIN code when starting Android. The SIM is inserted in slot 1.
How can I configure the SC20 for single-SIM? Does SC20 support single-SIM configuration?