Key echo and iOS mail

When I am entering email I always get key echo even though I have turned off both software and hardware echo. Does anybody else have this problem? And even as I type this message I am getting key echo although not consistently. When I called apple accessibility their answer is screen sharing so that we can make sure it is really off. I don't have wireless at home because I don't use that much data but that seems to be their only answer. We need to do screen sharing. Any ideas?
Thanks,
Jim