I think that blue frame might only be available to Nokia service centres. I wish it were widely available - it looks very useful.
Any update for people who have the issue if it's not hardware? My 1520 mic started not working soon as I put W10 on it about 4-5 months ago (whatever the 2nd ever release was). I flashed back to 8.1 over the weekend and even after a hard reset it still doesn't work.
Any idea how to fix the mic?
I'm certain this IS hardware, especially after reverting to W8 didn't fix it. I can only assume it was a coincidence. I, too, blamed W10 because that is when I noticed the problem. I even wrote some strong feedback to Microsoft on the feedback app and this forum, insisting there was a problem with W10. However, software updates cannot crack a ribbon cable, and that was the problem with mine. It seems to be a weak point in the 1520. I think if you fit the new USB module at the bottom of the phone it will cure it. It's a simple job.
Ok, I'll order that mic then from the eBay link in this thread. Sure seems like a big coincidence though lol, but if you did find a physical break in yours, truth is truth.
Yes, I speak the truth. However, why not check first? I found that when I took the back off I could make the mic work intermittently be moving the ribbon cable around. The new unit comes with a flat ribbon cable, but it gets bent fairly sharply twice when you fit it in the phone. I suspect the bend radius is too small for the type of cable.
Specweapon replied on December 16, 2015
Accomplishments
In reply to FlappetteRides Again's post on November 9, 2015
I have found a solution to the hardware fault on my phone, my microphone was never working so clearly hardware fault. I had the same microphone issues and the LED lights below my screen wouldn't work. I found that when i twisted my phone I could get them and the microphone to work, so it seemed like a bad connection in the lower daughterboard, upon disassembly I found the fault was actually where the ribbon from that board connects to the mainboard. In the picture below marked by the red arrow, I found that applying pressure made the Led's and microphone work. My solution was to stick a small piece of 2mm thick adhesive foam onto the silver cover so it applies pressure from the back cover.
Phone is working perfectly now
I tried replacing the mic hardware part but it did not solve the problem but I thing it was a faulty replacement (not new). So refitted my old part at it worked, for a few days and then stopped again. Could only make calls on loudspeaker. But I noticed the same as you. Pressure or twisting the phone a little would make the mic function OK. So I did the same as you with a small pad of 2mm foam - it is working fine now but only just done it so will wait a few weeks and post here again. Fingers crossed.