Hi!
I had my S4 (I9505) serviced a few months ago. Warranty repair, they replaced the whole mainboard. The repair took forever, and when I got the phone back, I already had purchased another one (second hand) that I liked better (Xperia Z1 compact, I liked the size), so I tested the repaired phone was working, but no more than that. A few months later when I missed my big screen and some custom ROMs I took back my I9505 and started using it with stock ROM. I soon noticed people couldn't hear me when I was on speaker phone. Then I flashed a few aosp and CM based ROMs, and realized it wasn't a software issue: it did not work on those either. And when trying to dictate something, or use voice command, the phone just doesn't "hear" anything. So the same mic must be involved in those operations, which makes sense since it is when you speak from further away from your phone.
Unfortunately, months have passed since the repair and the phone is no longer under warranty.
I started investigating a little bit, and it seems there are two microphones on the phone. The regular one works well but the other one not at all. So, here are my questions:
1. Is the second microphone located on the top of the phone, next to the headphone jack? If anyone has a diagram or picture of the board with the second microphone marked, I'd be happy to see it :)
2. How is that second mic connected to the board? Is it a cable, a contact or is it welded? Or is it integrated on the board?
3. If it is a part that can be replaced, where can it be purchased?
4. Anyone has had the same issue? If so, could you solve it?
Thanks in advance!
Cheers!
Fa
I had my S4 (I9505) serviced a few months ago. Warranty repair, they replaced the whole mainboard. The repair took forever, and when I got the phone back, I already had purchased another one (second hand) that I liked better (Xperia Z1 compact, I liked the size), so I tested the repaired phone was working, but no more than that. A few months later when I missed my big screen and some custom ROMs I took back my I9505 and started using it with stock ROM. I soon noticed people couldn't hear me when I was on speaker phone. Then I flashed a few aosp and CM based ROMs, and realized it wasn't a software issue: it did not work on those either. And when trying to dictate something, or use voice command, the phone just doesn't "hear" anything. So the same mic must be involved in those operations, which makes sense since it is when you speak from further away from your phone.
Unfortunately, months have passed since the repair and the phone is no longer under warranty.
I started investigating a little bit, and it seems there are two microphones on the phone. The regular one works well but the other one not at all. So, here are my questions:
1. Is the second microphone located on the top of the phone, next to the headphone jack? If anyone has a diagram or picture of the board with the second microphone marked, I'd be happy to see it :)
2. How is that second mic connected to the board? Is it a cable, a contact or is it welded? Or is it integrated on the board?
3. If it is a part that can be replaced, where can it be purchased?
4. Anyone has had the same issue? If so, could you solve it?
Thanks in advance!
Cheers!
Fa
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