I have the Z1 and continually get complaints from the person on the other end when using the Bluetooth feature of an echo. Any thought?

I'm sure many people with give you their thoughts and none of them will involve fixing your problem.

Has anyone tried this update CD in a Z1/Z2 withthe Z3 updates? I did not have a problem w/ an echo until I did the Z3 update.

No the echo is so bad no one can understand me.

Radio is full mute. Volume on phone turned as low as possible.

Any help would be appreciated.

this CD fix only refers to a Z1. Is it not compatible with the Z2? The bluetooth on my Z2 is useless due to the echo.