No dual 4g

edited September 30 in ROG Phone
Model: ZS600KL
RAM: 8G
Firmware/APP Version: Running latest version
Frequency of Occurrence: N/a
Rooted: No
APP Name:

Hi asus, why my phone does not support dual 4g even i have enabled from the dual 4g option. I am using unifi as sim 1 and digi as sim 2. Only the sim assigned for data connection have 4g/lte connection. Even i off the data also, only the particular sim assigned to use data has 4g/lte connection and other sim has 3g connection. Why? U have said that it supports both sim dual 4g same time but why i cannot get dual 4g even i enabled from setting?
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