This solution will make your troubleshooting easy and quick.
If the speaker is okay clean the speaker terminal contact pads, ensure that it has properly or good connection between the speaker’s terminal. Check the filter components, such coils, nd ESD diode
Samsung Galaxy J5 J510 Ear Speake Hardware Solution Picture Bellow
Check the diode by using multi meter, if it is faulty then change it.
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is tested by one or more members of our team before posting, but still
we do not take any responsibility for any damage it may cause to your
cell phones. Use these repairing solutions at your own risk. Thank You.
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Samsung