I have noticed that people voice talking to me (phone, whatapp, ect ) are complaining with echo on their side
I have to lower the headset volume to stop this echo. It do not occur with bluetooth
I think that the noise reduction mic on the top is to sensible but I'm not a specialist. Support have received my device with no problem discovered
I have tryed the hard reset but same issue
Do you encounter the same issue on your OP7 Pro ?
Same issue on my girlfriend device...