g920f missing nv data possible to repair without originol nv file??

hello sir
somebody erase nv data for samsung s6 g920F while unlocking. but he can’t done unlock customer bring me it has no imei. i repair efs (via z3x)and write cert it came imei but show no sim. i think its nv data problem. somebody have solution please how can repair it??

i try same working phone reading cert/nv data/efs then write but no luck.

anybody have tested i dea please.