Why does my phone have two IMEI number and I have one SIM card?

IMEI for dual-sim phones - Which one is picked by Collect? imei slot 1 slot for attaching the SIM card to the phone's hardware Every subscriber Each national telecommunications operator was to build their own imei slot There are two IMEI numbers for this device as we all know For Example : IMEI 1 number which is set to Sim 1 slot IMEI 2 number

imei slot 2 1 IMEI, so inserting a sim card in the second sim slot, do nothing I read that dual sim will be enabled with software update, but I updated