1. Cool Javelin's Avatar
    The sound on my phone (both earpiece and speaker) has gone scratchy (look here

    https://forums.androidcentral.com/ask-question/866107-lg-4g-vs985-4g-lte-sound-scratchy-earpiece-spekaer.html?mn_qa=1#post6151719

    for more details on this issue.)

    Since both have the same symptom that started the same day, I am assuming there is a common failure point and that is the DAC or the OP Amp after the DAC (if the OP Amp is not built into the DAC.)

    Does anyone have experience replacing the DAC (or if one exists, the OP Amp?)

    Schematics would be nice, pictures would also be nice. I am fully capable of reworking SMT devices.

    Thanks, Mark.
    02-08-2018 02:25 PM
  2. Rukbat's Avatar
    Are you fully capable of working on smartphones, though? The G3 isn't as tough as some, but it's easy to break something in it just by taking the inside back off and the motherboard out. Then you have a nice little case that doesn't pay to fix.
    02-08-2018 03:39 PM
  3. Cool Javelin's Avatar
    I am totally willing to take the risk. The phone is almost unusable now so I really have nothing to loose.
    02-08-2018 03:48 PM

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