Called my wife, Echo appeared straight away for her So frustrating! Immediatly opened up the phone once more, Removed both rubber mic housings completely, Rather than letting them stick to the rear section I put the rubber housings in place before re clipping the case together. Opted to cut a second piece of card but this time slightly wider to cover more of an area and put this on top of my other piece of card this will then cause more pressure pushing the speaker down I guess but I shall make a couple of test calls tomorrow.
I was a little bit gutted because I had a glimmer of hope briefly with my earlier call to my folks then to be told on a second call, "your phones doing that stupid echo thing again!" Oh well lets see.
I cant seem to get the courage to remove the earphone speaker completely (Pic C) when I put pressure on it, it doesn't move. I get the feeling it will break if I tried to prise that away!