Charging blocked by moisture, help needed.

[Notesfromtheunderground]

Somehow I apparently got moisture in my usb port, it's been giving my phone problems and it's been very fishy when charging. It seems to come and go. It first started around 3 hours ago, anyone else have this problem and do you know of a permanent fix?

 

[Golfdriver97]

Do you see some kind of message saying there is moisture in the port?

 

[Tony tata]

How I fixed it, go into all apps. Then system apps, find the app that is giving you that warning and clear its cache and it's data. I did that and the warning never came back. Apparently a lot of people were getting this warning out of no where. Hope this helps for you.

 

[Notesfromtheunderground]

Yes, It goes away for a little bit then comes back and my fast charge won't work anymore

 

[devaa]

I can say honestly that dust is really getting in the usb port and speaker holes. But i don't wanna get nidle in it. How do you clean it with tooth stick or ? I wanna clean it but i don't wanna f*** up the port...

 

[bobdob]

Definitely clean out the charging port. Its method of detecting moisture can be fooled by debris in there with a similar resistance that is shorting out the contacts. First try compressed air, then find something thin and plastic you can stick in there. Maybe a plastic dental pick would work well. I know I'm eventually going to have to find something myself! I used to use plastic-coated wire on my LGOG but I think the USB-C port is a little more fragile.

 

[jeetu4444]

I had same issue when i used it in the sea then washed it under tap water..after that i keep getting same error...i just tried blow dyer and i a days time all was back to normal...

 

[jchapman01]

another option is rubbing alcohol and a toothbrush. I've used that to clean out ports before and it's always worked. plus the alcohol will dry out any moisture quickly.

 

[natehoy]

Yeah, getting something in the port to clean out any solid debris that might be causing a false positive is good. I would personally go with "softer is better" as long as it doesn't stand a chance of adding more debris than is removed.

I'd start with a little compressed air or light suction with a vacuum to see if you can move it with air movement. Or just blow into the port gently. Then I'd move up to a dry soft-bristled toothbrush followed with some air movement. Then add high-percentage rubbing alcohol to the toothbrush if that doesn't do the trick.

I'd save the toothpicks and hard plastic implements for last resort items and use them really, really gently.

 

[anon(40232)]

I had this problem too. Went 5 days with it popping up the error. I ended up having Verizon replace it under warranty.

Thank goodness for the wireless charger.

 

[delrey1900]

I've had lint get into the USB port and cause it to do funky things when trying to charge. I cleaned it out with a can of compressed air and it was fine.

To the OP, has the phone even seen water/liquid?

 

[sharonkrol]

How I fixed it, go into all apps. Then system apps, find the app that is giving you that warning and clear its cache and it's data. I did that and the warning never came back. Apparently a lot of people were getting this warning out of no where. Hope this helps for you.

How do you find the app that it is coming from

 

[RobertD1974]

I sent my back to LG and they fixed it free under warranty

 

[Fifen]

"Use the native dialer and type in *#546368#*931# <<substitute 931 with your phone version. Up comes the menu with 4 categories. Under SVC Menu further down find the Moisture Detect Setting" found that on XDA. this helped me with the same issue except its meant for the v30. if you can find your way to the hidden menu try that. Also I tapped 'enable' instead of 'disable' and that fixed it.

 

[mokrze01]

"Use the native dialer and type in *#546368#*931# <<substitute 931 with your phone version. Up comes the menu with 4 categories. Under SVC Menu further down find the Moisture Detect Setting" found that on XDA. this helped me with the same issue except its meant for the v30. if you can find your way to the hidden menu try that. Also I tapped 'enable' instead of 'disable' and that fixed it.

I tried this and it didn't work

 

[Johnny_M]

2 grains of very small Costa Rican sand were the issue after a waterfall rappel . Just be careful what you clean with. a plastic dental pick with little hairs on it is perfect.

 

[Marttie]

My wife had this same problem with moisture in her phone which was hindering her from getting her LG Android phone charged. I simply took her fast charging Samsung plugin and hooked it to her LG cord. Problem gone. I hope this can help someone.

 

[woofster]

Just wanted to add my recent experience to this existing thread.

Yesterday, I went to a heated therapeutic pool with my little one for a nice, warm swim. I had my G6 in my backpack, which I left on the side of the pool room. I guess the humidity of that room infiltrated the USB port of the phone because when I went to wake up the phone, I got that dreaded "moisture detected in the USB port" warning message.

When I got home, I tried plugging it in to charge and it immediately kicked out of charging mode. Connecting to my computer as a storage device didn't work either. With my battery life getting down <30%, I was unable to do a system backup so I mentally started preparing myself for the worst.

1. I cleared the cache of the LG System Server app but the error message would always come back once I plugged the USB cable back into the phone.
2. So I proceeded to put the phone in rice for 30 minutes but that didn't seem to help.
3. I then used a hair dryer and blew into the USB port at various temperature settings for about 5 minutes. I didn't want to keep it on the hottest setting so I toggled between warm and cool air.
4. I also used a soft toothbrush and thoroughly cleaned out the USB port as best as possible.

After trying all of that, I held my breath and re-connected my charger. After a couple of unsuccessful connections, I was eventually able to get it to hold charging status for maybe a minute or so. I continued playing around with it and did the hair dryer / toothbrush combo again. Rinse and repeat.

Finally, I got the phone to charge for maybe 30 minutes or so before the moisture warning popped up again (much to my dismay). From there, I unplugged then re-plugged the charger and it started working again. This time, I was able to get it to charge to 100% to my amazement. I kept it unplugged overnight and today, I have yet to get that moisture error message at all. Fingers crossed.

I really don't know if anything I did actually resolved the issue or if the moisture just dissipated on its own but I recall the sheer disappointment when I thought my phone was most certainly a goner and also of how ecstatic I was when it started working again...and hopefully, this will help someone else going through this same frustrating scenario.

 

[Rukbat]

If the phone is water resistant, which the G6 is (IP68), the port can still get wet, and a short in the port when you're charging can destroy the motherboard - so the refusal to charge when wet. The hair dryer is probably what did it.

If it ever happens again, and the hair dryer has a "no heat" setting, try running the hair dryer until the phone starts to get warm, then switch to no heat until the phone cools back to room temperature, then heat again ... constantly for about half an hour. the cool air is still moving air and will speed up the evaporation process. (We actually had a "phone drier" heat gun set up to cycle automatically with an external temperature probe, for drying phones. [We worked on them opened up.] But the phone went into a little box and the heat gun went for about half an hour, basically keeping the phone at about 110°F. After a thorough washing in alcohol a few times [to get all the salts and other dissolved junk off the phone], you still want to make sure that there's no moisture left.)

 

[cohoman]

I'm having the same issue with my LG after owning it for 1 year. My phone constantly displays the "USB Port Moisture" warning in the notifications panel, even when I'm not trying to charge it with a cable. Coincidentally, this started happening shortly after I upgraded to AT&T Oreo 8.0. I tried all the cache clearing, rebooting, etc. suggestions and it didn't help.

I finally tried using the phone dialer and *#546368#*931# to bring up the hidden menu and disabled the moisture check. That seemed to stop the moisture notification from displaying and I can charge with a cable again (although, it no longer charges as "fast charging").