iPhone 5 No Loudspeaker

[MrInformation]

1) I have an iPhone 5 that was slightly water damaged

2) EVERYTHING ELSE WORKS except for the sound from the LOUDSPEAKER

3) I noticed 1 bad CAPACITOR around the AUDIO CODEC U21
I have not removed it because I think that it will not solve the issue.
C422

[IMG][/IMG]

4) I checked for continuity from C360 to pin 29 on the J7 connector
and from R123 to pin 28 on the J7 connector (J7 = dock connector plug)
both lines checked out fine

[IMG][/IMG]

5) I checked all the neccessary voltage values all checked out just about
right.

6) EVERYTHING ELSE WORKS (microphone works, earpiece speaker works
headphones work etch)

7) I have also restored the phone succesfully but no sound

8) If I put my ear to the LOUDSPEAKER when listining to music I can
hear a rustling noise like elcrtons are traveling.
So I believe U19 the speaker apmlifier IC is working.



WHAT SHOULD I DO

[laptopmd]

Have you tried the simpler solution ?

...Changing the loudspeaker ?

[MrInformation]

Yes I have changed the loudspeaker 3 times in working phones.

[MrInformation]

Anyone else have any information

[shanoopc]

check ringer on settings . if working on settings,
change h/f flex(also check detection path capacitor)

if not ok, reball/ change the u19 + u21 one by one

[Wites OM Tesla]

Originally Posted by MrInformation

Anyone else have any information

Try replace corroded cap in your pic also look for other maybe corroded and have short or low readings.

[MrInformation]

I replaced the cap nothing happened.

I had to reball U19 and U21