EM7455 & Ucell Uzbekistan

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Network selection (+COPS,+CPOL+CPLS)

Hi, My understanding of AT+COPS=? is that it returns a list of detected PLMNs. Are these in any particular order (e.g. signal strength)? If the module returns PLMNs x,y,z and has automatically registered to x, and then I force it to manually register to y (via AT+COPS=1,…) then will it fallback to x if y disappears and if so will it ever return to y if it reappears ? If the above is not possible then I assume I have to use AT+CPOL and AT+CPLS to edit/create a PLMN list on the SIM. Are then …