What is an IMEI number and what is it for?

What is an IMEI number and what is it for? imei slot 2 Hi my p40 lite has two slots but one IMEI number, can you please help imei sv slot 1 Step 2 Contact Your Mobile Service Provider: Inform your mobile service The IMEI number will be printed on the tray or its slot It's essential to

imei sv slot 1 Step 2 Contact Your Mobile Service Provider: Inform your mobile service The IMEI number will be printed on the tray or its slot It's essential to

imei slot 1 slot 2 nedir 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 for networks of GSM standard) Such an identifier is assigned to each SIM slot of the mobile device Such a CEIR may include the following lists: White