HELP Sound speaker does not work iphone 4

Question

Hello ;

The iphone was loading when started calling , vibrated and fell off the table.

 

Apparently everything worked fine , but when called .... suddenly sounded twangy and worse, until after a while stopped ringing or making a sound . I stopped, lit it and well. But the time it stopped working and the speaker has arrived.

 

SYMPTOMS:

When calling : NO SOUNDS

When I put songs and / or videos: NO SOUNDS

Keyboard: NO SOUNDS

 

In all cases , if I put the headphones and / or bluetooth ( handsfree car) if it emits all sounds.

 

The button that switches the vibrator is set correctly .

The audio settings too.

 

I have restored the software IPHONE , result : NEGATIVE .

 

I replaced the polyphonic speaker with a new one : Result NEGATIVE .

 

My next question is: if the polyphonic speaker is connected via two pins to Flex Data Loading and iPhone 4 , if I replace it , I have choices that can be repaired ? It may be that some clue or micro soldier there has been fucked ?

 

I do not know where to shoot , because if I have opened the IPHONE, are not going to accept me in the SAT Iphone.

 

Any help, please?

Answer 1

See if it will be the tab on the hollow of headphones has moved you, and you say to them if it works. Try inserting and removing headphones giving the volume and go and see what happens.

Answer 2

Polyphonic speaker are all ... is the emission of the polyphonic signal or not. 

 

May be the speaker cable itself, or, worse, the audio processing chip, in which case is the crappy topic ... 

 

Try another cable and plate ... well ... there are sites "workshops" save perhaps specialized, hehe