Those were among the first settings that I tried to change. They don't have any effect, at least for me. The problem persists regardless. ... View more

As I already commented earlier, the build 32.0.A.6.200 does NOT fix the echo issues. In fact, it seemingly had no effect whatsoever for this problem. ... View more

Oh well, the issue just happened when someone else called me. Right at the beginning the caller notified me about the echo. So, the echo can appear at the start of both incoming and outgoing calls. ... View more

It seems that this is plausible (not sure though) for my device also. Regarding received calls, the microphone sensitivity might also still be a bit too high (or it might also be a noise cancellation issue), since I get some complaints about noises in the background which should not really be audible to the caller. But that is a somewhat minor issue compared to the echo problem. ... View more

Yes exactly, I don't notice anything wrong on my end (Z5C), but the other party hears the echo. ... View more

It seems that the firmware update 32.0.A.6.200 does not fix this issue. Some more information: Today the issue occurred again multiple times with 32.0.A.6.200. One caller said that when he heard the echo, he also heard even my foot steps. So, it seems that for some reason, the microphone sensitivity is way way up when a phone call is initiated. The echo seems to disappear after some random amount of time during the call (at least most of the time).   Personally, I'm feeling quite frustrated, since I just received my phone back from a service center and all they did was reflash the same firmware version (32.0.A.6.152) which I had already flashed myself prior to sending it to the service center. Obviously, the issue appeared immediately again when I  made my first call after having picked up the phone again, so they never even tested it... ... View more

I have this issue as well. Resetting the phone does not help. I have a white compact which also had the touch screen issue, if that makes any difference. Firmware version 32.0.A.6.152 ... View more