My nexus one (purchased used) has never recorded audio
when recording a video
. I stumbled across a post where someone had squeezed near the mic and fixed the issue. I discovered exactly what was going on. After squeezing the area around the mic while recording I determined that I may need to disassemble the phone to correct the issue. After looking at the teardown on ifixit.com I saw that the mic is held in by a connector that can be seen through a slot in the back black plastic under the battery cover. I folded over a post-it note pushed it in to the slot and CLICK, the connector snapped back in to place. I also left a little post-it note piece in to the slot to keep it in place. See the attached photo for details.
Please share this with
others on other forums if you have seen other threads with
this issue. I hope it helps others!