Want the answers to questions about the iPhone? You'll find questions and answers here.
I have a new Iphone 4. It worked for the 1st day, but then the keypad went to being very sensitive. I could not punch my passcode in without retrying several times. Using the message keypad is futile. Anything I can do?
Try the usual steps: restart, reset, restore.
If you try restoring from a backup and that doesn't fix the problem, try restoring to factory settings and synching your apps. You'll lose the app data and settings, but if the problem is due to a corrupt cache or settings file, that should cure it. If none of that helps, your iPhone may have a hardware problem and will need to be taken or sent to Apple for service.