I'm really hoping those of you smarter than me can help. I installed the 2.2 RUU, all went seemingly well, came back up, all done. Everything works EXCEPT the ear speaker. When making calls there's no sound from the ear speaker at all. However, if I use speakerphone or plug headphones in I get sound just fine. Only the ear speaker? I'm totally lost, a radio issue? Anyone tried to downgrade from 2.2 back to 2.1 yet? thanks everyone