iPhone 4S Call malfunction, no sound, no mic + Wifi slow – iphone mobile problem

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iPhone 4S Call malfunction, no sound, no mic + Wifi slow – iphone mobile problem

On January 25, 2015, Posted by , In iPhone, With Comments Off on iPhone 4S Call malfunction, no sound, no mic + Wifi slow – iphone mobile problem

Hello.
Today I bought an used iPhone 4S and have some problems Along with it.
I knew it had problems Along with sound during calls, you can not hear the caller nor can he hear you, which means the mic and speaker dont work.
It also doesnt work Along with bluetooth headset, cabled headset or speakerphone enabled.
But this only occurs in the phone application. On Voice memos, siri, etc. everything works fine.


Earlier I got it to work by pressing down on the left side of the buzzer box Along with the speaker in it – but since I slid the backcover back on, it doesnt work anymore, even if I do it again.

Also I have weird WLAN issues. The phone is very very slow, even though the net is fast. Another iPhone and android phones are surfing the web fast while this particular 4S is so very slow. 3G is fine.

What kind of error is this? I read about the Audio IC above the A5 chip, but since it worked whilst pressing on the buzzer box, Id like to rule that out…
I repaired many iPhones but this is new to me, so Im very confused right now and it would be super tight if someone here could to be helped me out title=smile

No Comment so far:

  1. ExpertBuddy says:

    check if c147 is connected to battery +

    one side in this cap is – or ground

    and the other is + or positive

    if this is ok maybe , maybe is audio ic

    you can check in and out lines too.

    sorry ,, try to get schematics diagram for iphone 4s

    greetings

  2. newComer says:

    Today I got audio IC replaced by a professional, which I regret. I couldve gotten another, functional 4S for the price that guy asked.

    The iPhone booted Along without a problem, but the touchscreen goes crazy now. Plus now theres no sound at all, not just during a call.

    What the frak is happening here?

  3. ExpertBuddy says:

    i think you phone is wather damage kindly make a full check by a pofesional