HOW TO READ CERT WITH EXYNOS UNLOCK AND DIAG PORT?
Answer
Start phone fully make sure stock firmware is in phone. in some case you may need combination MODEM only not full flash.


Dial *#0808# select LAST OPTION..(some case you may need to reboot)
Scan port and select SAMSUNG USB TO SERIAL port in GCPro software.
Go to samsung tab select Exynos unlock. Press start wait till finish..


If you face any issue Please report by making thread and attach full log.