Q: Microphone on keyboard and Siri can't hear me

User troubleshooting begins with powering the phone off/on. The next step is a reset, hold the sleep/wake and home buttons together until you see the Apple logo and then release. Usually this is enough.

EDIT: If that is not enough, use this support document for help http://support.apple.com/kb/TS4079

Message was edited by: ChrisJ4203 - Add support link

Glad to hear it. You're welcome.

Any other ideas? Still not working for me. I can use other mic-based services like Shazaam and Google voice search, but not Siri or keyboard microphone.

Is Siri turned on in Settings? Do you have any Restrictions turned on in Settings? You must have data access for Siri to work also.

You can see this support document for troubleshooting Siri http://support.apple.com/kb/TS4079

She's on, and the microphone pops up, but then doesn't register sound. Maybe a hardware problem. Just weird since the mic can be used for things other than Siri, as I mentioned. Genius Bar bound, I guess.

Did you try anything in that support document that I provided? If your microphone is working for other things, including the phone, there is nothing wrong with the hardware. It sounds like it is software related. The first thing Apple is going to ask if you take it to the Genius Bar is if you did a reset, restore from backup and restore as a new device. If you haven't, they will do it there. Save yourself some time and hassle at Apple and do it before you go. You may just end up getting it to work.

Yes, tried everything short of a restore, which I was trying to avoid. But will do this today.

Okay. Good luck.

Didn't work. But I am reminded what a disaster iCloud restore is - takes days!

I have exactly the same problem but weirdly, Raise To Speak works! Tried everything that's been suggested so far but nothing.  There must be some kind of fix!

Have the exact same problem.  Interestingly, if I use the apple headset (wired) Siri works fine.  However, holding the home button produces just a "flat line" no matter how loud I speak.  All other mic functions (Google speech, dictation, etc.) work fine.  At first, I thought maybe it was connecting to a bluetooth headset and attempting to listen from that headset, but I disabled bluetooth to rule that out and still didn't work.

Did a complete erase/restore from a backup made 2 weeks ago (when it was working fine).  Nada.  Guess it's time to take it to the apple store.

I have the same problem....everything was working well (Siri) up to 2 weeks ago...just stop....