What does IMEI-SV mean?

What is IMEI SV exactly? Afraid my new phone has been refurbished imei sv slot 1 problem imei sv slot 1 - Bogor - Xiaomi Community imei slot 1 slot 2 nedir IMEI NUMBER then has two numbers for : IMEIIMEI then IMEI SV and IMEI SV Silvio L gutierrez · 8 years ago Helpful? 0 Report

imei slot meaning Looking at the imei parameters I noticed that the imei sv is: unknown, slot 2 nano sim imei sv: 01 works very installed