Help needed to repaire Sm-G900f QUALCOMM SECUREBOOT:ERROR[0X3]


Hello Mates

I have a Samsung SM-G900F from a custommer which keeps restarting and IMEI NULL.Flashe with PIT+CODE,
tried to google…..PIT/BOOT/PDA/MODEM/CSC but no joy…
I have tried flashing more than 15 different stock ROMs but the problem still not sorted. when put in download mode

ODIN MODE
PRODUCT NAME:SM-G900F
CURRENT BINARY:Samsung Official
SYSTEM STATUS:Official
REACTIVATION LOCK:OFF
KNOX WARRENTY VOID :0X1 (2)
QUALCOMM SECUREBOOT:0X10

QUALCOMM SECUREBOOT:ERROR[0X3]
SECURE DOWNLOAD : ENABLE
VOC START

DOES ANYONE KNOW HOW TO REPAIR THE SECUREBOOT.?? PLS

Thanks in advance
GSM FACTORY UK.