What is IMEI SV exactly? Afraid my new phone has been refurbished

How to check IMEI SV in vivoT1 44w phone imei sv slot 1 IMEISV is the code that identifies the mobile phone and the version of its software imei slot 1 slot 2 40 1 Composition of IMEI p 40 The International Mobile station Equipment Identity (

imei slot 1 These numbers includes information on the origin, model, and serial number of the device The structure of the IMEISV is specified in 3GPP TS The model