I recently snagged an M from Craigslist. The phone is in pretty much brand new condition, not a scratch on this thing, the guy even threw in a brand new Otter Box case for it. It works great, except for the terrible mic quality. No matter who I call, they all complain about the quality, whether I have 5 bars of 4G or not. I've downloaded a few voice recorder apps, and they seem to record in fairly reasonable quality, so I'm not quite sure what the deal is. I've been looking for any reference to poor mic quality for the xt907 for a few days now and this is one of maybe 3 threads on the topic. So obviously it's not a very widespread issue. But I'd still like to be able to use my new phone without resorting to Bluetooth or a wired headset.
Does anyone have any experience with this issue? Or replacing the actual physical mic inside the phone? I've found replacement parts here and there, but they all just say 'XT907 Replacement Mic" etc. If someone has an actual model/part number for the microphone, or know where to find it, I'd greatly appreciate the info.
For the OP, when you cleaned your mic, how exactly did you go about it? I've hit it with compressed air but I haven't taken the phone apart yet.
Thanks again for any help.