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[Q] Loudspeaker Mainboard Problem

8th July 2014, 11:18 PM   |  #1  
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Hello I have a Sony Xperia Z

I changed the sim reader as it was damaged & it all works ok but the loud speaker is not working & its not the loud speaker or the flex cable as i have already tested this.

Could anyone help me please, Thank you
Last edited by danceqwerty; 8th July 2014 at 11:26 PM.
8th July 2014, 11:28 PM   |  #2  
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Quote:
Originally Posted by danceqwerty

Hello I have a Sony Xperia Z

I changed the sim reader as it was damaged & it all works ok but the loud speaker is not working & its not the loud speaker or the flex cable as i have already tested this.

Could anyone help me please, Thank you

If is not hardware issue try resetting the phone
9th July 2014, 01:29 AM   |  #3  
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It is a hardware issue
9th July 2014, 07:21 AM   |  #4  
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Quote:
Originally Posted by danceqwerty

Hello I have a Sony Xperia Z

I changed the sim reader as it was damaged & it all works ok but the loud speaker is not working & its not the loud speaker or the flex cable as i have already tested this.

Could anyone help me please, Thank you

Did you check your headphones, did they work? Maybe you have damaged your motherboard with soldering.
9th July 2014, 04:11 PM   |  #5  
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I just had the same problem after replacing the lcd/touchscreen.
I checked the continuity of the ribbon, and that was ok.
Then i checked the continuity of the speaker, that was ok.
Then i removed the speaker from the plastic enclosure and placed it on top of the metal contact pads while playing some music - and it worked.
So it turns out that the contact legs on the speaker are not in alignment with the pads when it was installed into the plastic enclosure and that was back in the phone.
I hope that helps.
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