How to use RLOCK ADB = REACTIVATION REMOVE ON QCOM samsung device..
You must have STOCK 5.1 or newer .
You must have ADB & ROOT. TEMP root also ok. use google or search in forum to get more idea how to do it. if you can't sorry no other option we have.

We have uploaded most of ENG ROOT at support and they are latest firmware so flash your device with need firmware first.

Scan port & select samsung modem port before start.
Go to samsung tab select RLOCK ADB.
Select any model GCPro do not care models at most case.
Press start follow steps.

In case any error please format and re do.. if still say post log by making new thread do not forget to post all log in text format no images or files please.

Most engineering root is already at support..