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Possible cause of earpiece speaker not working after screen repl.

Hi,

I have not been able to find the information I need so far. I have an iPhone 5s on which I have replaced a broken screen. I’ve transfered working front facing camera, proximity sensor, earpiece speaker and Home Button from the broken display to the new one. I think I was very careful not to break anything during the replacement. After reassembly almost everything is working fine, all but the earpiece speaker, from which I can hear no sound at all. The speaker to me seems pretty foolproof, so I think there might be something wrong with the flex cable. Is that possible if both the front facing camera and proximity sensor work fine? Is there a separate cable for the earpiece which could be the problem? Thank you very much for any help with this!

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Hi mate

Sorry it might sound very silly but have you tried cleaning the lego connectors? It might be that some dust got there and it just doesn't get the spark. Does the cable look battered? If so then I'd advise you to change the earpiece to a new one.

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Thanks for answering. What do you mean by lego connectors? The four gold contacts between the speaker and the flex cable? Thing is, I don’t know what cable to look for. From what I can see, there is no dedicated speaker cable, the speaker connects directly to the flex cable for the prox sensor and front camera. That’s why I’m not sure if I’m to buy a new speaker or a new flex cable. And if the cable is broken, wouldn’t it also affect the proximity sensor and camera?

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hello,

id say that unless you had to pry out the flex cable, it shouldnt be damaged with a screen replacement. it is more likely that there was a mis connection when plugging your component back in. may be a pain, but i would retrace my assembly steps, unplug, look at the connectors for any force damage and reseat the connections. if this doesnt work however, then damage may have occured and then would look into a replacement assembly for the speaker.

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Thanks for answering. I actually have already disassembled and reassembled the phone several times to look for any mistakes and to clean the connections. However I did pry the cable from the display shield, is it possible that that’s where I damaged the cable? If so, I said in my other reply, wouldn’t it also affect the prox sensor and camera? I only see one cable for all three components. So by speaker assembly, you mean the whole speaker/proximity sensor/camera + cable assembly? Thanks again!

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im sure when you say pry, it was just enough to lift the ribbon connector off of its posts. if there was any more than this, then it is possible that the thin data lines were damaged in the flex cable. Your are correct about the proximity and speaker lines being together in this cable, but they are on seperate lines and it is plausible for one to break vs the others. since youve already retraced your steps to ensure the proper placement, you may want to inspect the cable closely for any signs of breakage on a line. can use a magnifier and hold up to the light to see the traces.

here is the a guide that was posted that may help you reaffirm your steps taken on installation.

iPhone 5s Ohrhörer-Lautsprecher ersetzen

if all else fails.... you did the right steps, there is no damage to the flex... it may be a fault in the replacement and may want to check the vendor if it was new used and or warranty on the part. did the new speaker come with a new flex connector as well? if not, what initially caused the speaker to fail?

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@jostewcrew Thank you, I'll disassemble it again and take a closer look at the cable. As far as I know it's all original parts and it worked fine before, I didn't replace the speaker, I only transferred the old speaker to a new display which I was putting in. Only new parts are the glass and digitizer.

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Petr Chladek wird auf ewig dankbar sein.
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