Not sure if this is a problem with the Chevy1 OS or not.
I've got D1 and running K9 mail.
I've got it set to vibrate when I get new email.
All was working fine then, all of the sudden, the vibration won't work.
I tried changing the pattern, a different email client, messing with all that I can find in the OS settings.
I had this happen couple months ago and I don't remember how I fixed it.
I think it had something to do with the vib pattern in K9 conflicting with a default vib pattern in the OS...
or something like that.
It made sense at the time but now I can't find anywhere to change or anything that might be conflicting.
I did reinstall the OS, though not a clean install.
Sounds work fine when set to go off when receiving a new email.
Vibrations work fine when setting the vib pattern in K9 or the OS settings, so the vib ability of the phone is ok.
I tried changing to dif patterns in K9.
I'm at a loss.