Hers’ a solution for Nokia Lumia 925 if having an audio problem with earpiece or receiver speaker. This solution will make your troubleshooting easy and quick.
If the earpiece is not working or no sounds can be heard on it, you may first manually check the receiver speaker using a multimeter. If the speaker is damaged replace it. A poor,distorted or garbled sounds is also an indication of a bad speaker.
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 and ESD diodes.
Nokia Lumia 925 Earpiece Solution
Hints in troubleshooting Nokia Lumia 925 Earpiece Speaker
1. Start to check with Speaker assembly, it is located at the top of the board behind the LCD screen.
2. Check for possible corrosion build ups, speaker terminal bending. Clean it including the speaker terminal pads or aligned it again if either the connection might be weak.
3. Check the speaker using a multimeter. Set the tester and check if there is crackling sound can be heard and the tester responds. If no indication of anything, the speaker is already burned out or damaged. Replace it at once.
4. If the speaker is okay, and still there is no sound can be heard, check the firmware. Update it or do re-flash.
In order to troubleshoot, all you have to do is to follow the following steps:
Put jumper if it is faulty, as one of the reasons for this problem is that the phone heavily dropped or water damage.
Check the diode by using multi meter, if it is faulty then change it.
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