I have a Kyocera Lingo which is also the M1000. Just about a week ago, the 1,4,7, and * key stopped working. Whenever I press them nothing happens. The rest of the keys work fine. Also, sometimes when I talk to someone with the phone flipped open and close it, the speakerphone part stays on. I press the button to turn it off, and all it does is turn off and on. I adjust the sound on the side, but no matter what the sound stays the same volume. Thanks for any help.