g925i imei writing error

Product code:
Phone version: G925IDVU3EPH3
PDA version: G925IDVS3EPJE
CSC version: G925IUUB3EPH9
CSC country code: TRINIDAD AND TOBAGO
CSC sales code: TTT
HW version:
Phone SN:
Chip name: EXYNOS7420
Modem board: SHANNON333
RF cal date:
IMEI:
Checking Super user right… true
Reading NV data… Ok
Checking NV data… error
Security damaged (1)

Done with Samsung Tool PRO v.27.7