GT-I8200n NVM Damaged ? Any Help

[TheaRtMan]

hi i have GT-I8200N after flash CSC for Languge change
the phone Stuck at Samsung logo
so i flashed with stock rom
after that the Imei null/Null

tried to imei repair but without sucsses here is the log :


Operation: Repair
Selected model: GT-I8200N
Software version: 24.2

Waiting ADB device... OK
Reading phone info...
Model: GT-I8200N
Android version: 4.2.2
Product code: Unknown
Phone version: I8200NXXUANG1
PDA version: I8200NXXUANG1
CSC version: I8200NOXAANG1
CSC country code: Germany
CSC sales code: DBT
HW version: Unknown
Phone S/N: 00000000000
Modem board:
RF cal date: Unknown
IMEI:
Checking Super user right... true
Bypass MSL... error (1)
NVM damaged
Done with Samsung Tool PRO v.24.2

[TheaRtMan]

if anyone have an EFS Backup that would help me as i think ..

[TheaRtMan]

any help ? where r ya z3x Team