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The LG G4 was released in the US in early June 2015, as always focusing on high-end specifications and a refined fashion sense that makes it stand out in the premium smartphone market. Each version of the phone will have a different model number based on if it is sold by a carrier or unlocked (US or International). Some LG G4's are known to have bootloop problems.

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LG G4 Water Damage - Speaker replaced still not working

My LG G4 got exposed to water. I dried it out and everything was working fine except for the loudspeaker. Lots of buzzing when trying to play something through it. So I replaced the speaker and am still facing the same issue. What should I troubleshoot next?

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@tpick33 how did you dry it out? what did you do about the water damage?

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@oldturkey03 I took the phone a part. I used compressed air and a hair dryer on low and then let it sit for a day.

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Nice. A blow dryer. So let's try using this guide and see where that gets us

Electronics Water Damage

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@tpick33 I do agree with @theimedic You definitely could do better. Using compressed air will only push the water (and the debris in the water) under components i.e IC's and can cause corrosion and short circuits. A blow dryer will evaporate e the water but again will leave the component in the water that are responsible for corrosion etc. Startbby cleaning the board properly. Use the guide the was provide by iMedic or use this one. It was written for an iPhone but all the points are still pertinent to your phone as well. Use this guide to remove the motherboard.

Once you have all that done, and nothing has changed, you can try and trouble shoot the board. It is possible that the distorted sound is caused by a failed speaker circuitry or by a failed receiver circuitry. I attached troubleshooting guides for both of those.

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iPhone Afbeelding

Handleiding

Repairing iPhone Liquid Damage

Moeilijkheid:

Moeilijk

1 - 2 hours

LG G4 Motherboard Afbeelding

Handleiding

LG G4 Motherboard Replacement

Moeilijkheid:

Gemiddeld

10 minutes

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TheeeeeeiMedic!!!! Dangit, Uncle. Way better answer than me! Again!

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@theimedic I used your username for the second mention so as to not confuse the OP ;-)

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@oldturkey03 I know I feel like it's a special inside joke between us

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@theimedic it is brother, it is. ;-)

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Thanks for your answer. I followed the circuit board cleaning guide and I'm still facing the issue. I'll use the circuitry guides you attached and see if I can find an answer.

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in my case L6700 is peeled off because the phone fell to the ground. everything working fine except loudspeaker… bought new loudspeaker module but that didn't solve the problem. it was before the discovery that the L6700 is peeled off

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Tyler Pickett zal eeuwig dankbaar zijn.
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