Voice recognition stopped to work

[Grief]

Hello. I have UE46H7000, I've rooted it about a month ago and since that, I didn't use voice recognition function until now.

Now, I have the following fail scenario:

1. Power on TV.
2. Press search button on TV remote (magnifying glass)
3. Press voice recognition button on on-screen keyboard (mic)
4. Say something

Nothing happens and furthermore the mic button on on-screen keyboard cannot be pressed anymore until TV reboot. Is it a known bug of rooting procedure or it is not related to the rooting at all? If so, how can it be fixed?

Thanks in advance.