According to RUT955 SIM selection?
I finally began to try/test usage of 2 SIMs installed in the RUT955. Unfortunately, I discovered, that "option sim_sel '0/1/2'" in /etc/config/system is simply ignored. Always SIM1 is used, only, even after reboot.
However, I can select SIM2 when modifying
config gpio_switch 'sim_sel' option name 'SIM select' option gpio_pin '503' option value '1' #option value '0' for SIM2
So, it looks like a bug processing "option sim_sel" .
OR, can somebody confirm, that it works on his device ?