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SIM 2 Not Allowed

Star I
Please tell us some basic information before asking for help:
Model Name: ROG Phone 3
Firmware Version: WW_170823.2008.78
Rooted or not: Not rooted
Frequency of Occurrence: Everytime Sim 2 Used
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
Hi Guys,
I just bought ROG Phone 3 yesterday but when i put in sim card in the Sim 2 tray, it's constantly showing warning "SIM 2 Not Allowed". I try several scenario just to make sure
Only use Suspected Sim to Sim 1---> Normal and no probs at all
Use Suspected Sim to sim 1 and another sim to Sim 2 ----> Problem Occured
Any clue on this guys? My friends got new phone also but seems not having this problem. Just FYI i lived in Indonesia, I use Indosat and Telkomsel.