Moisture In USB Port Warning

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vintagerock

Senior Member
Jul 4, 2012
143
53
So yesterday my phone started freaking out. It started flashing the usb notification and sound as if I was plugging in the phone and unplugging it rapidly, even thought I was plugging nothing in. To see what happen if I actually did plug something in I tied pluggin in the power adaptor and I got the "Moisture In USB Port" warning. My phone has not come into contact with any moisture, and even it somehow had it has been nearly 24 hours and I still get the warning when I try to plug it in. The rapid usb notification happened once again this morning but hasn't happened again since. What is going on? I can't charge my phone unless I turn it off.
 
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rberet

Member
Feb 19, 2012
14
3
Lukavac
rberet.com
Same situation here. I tried to put G6 in a rice over night, without help.

Also I put my device on a coffee machine several hours to get rid of "phantom moisture", without any results at all. I think it's now software related problem.

By the way i can't charge my battery over 50%, to charge it until 50% I need to restart device with attached USB. By the way notification with vibration effect every second is freaking me out.

If someone find any solution please share...
 

bhupindra

New member
Jan 11, 2014
2
2
Problem solved for me

So yesterday my phone started freaking out. It started flashing the usb notification and sound as if I was plugging in the phone and unplugging it rapidly, even thought I was plugging nothing in. To see what happen if I actually did plug something in I tied pluggin in the power adaptor and I got the "Moisture In USB Port" warning. My phone has not come into contact with any moisture, and even it somehow had it has been nearly 24 hours and I still get the warning when I try to plug it in. The rapid usb notification happened once again this morning but hasn't happened again since. What is going on? I can't charge my phone unless I turn it off.

I took my phone to spain and it had loads of sand on it by the beach. I couldn't charge due to the moisture warning for 3 days. Eventually i found a solution. I loaded that sink with about 2/3rds water. I swilled only the port area in the sink. I then dried the phone as well as possible. I screwed a thin tissue paper up and dabbed round the port. I then found a rectangle piece of card (it was a clothes price tag) it was probably 1 millimetre thick and i pushed it in deep into the usb port to aid cleaning using the corners of the tag. It solved the issue and didnt break anything and cleaned out some of the deep sand and cotton that wasnt drying at 30 celicus heat this week. Saved me claiming on my insurance and the headache of installing all my apps etc. Try it, but be very careful with the card tag as you dont want to break any terminals in the usb slot.
 
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sonikk71

Member
Jun 22, 2017
6
3
I had the same issue as the original poster about a month ago. I have spent the last few weeks testing and found that for me changing developer settings back to "charging" from "file transfer" has worked. Not saying it will work for you but give it a try!
 

GuestReplyisaLie

New member
Aug 6, 2017
1
0
Having the same issue now. No reason to think much moisture got in. Sat it in rice, etc. Haven't tried washing the port. Anyway, I can charge if I turn on airplane mode then boot into safe mode holding volume down plus power. The moment I plug in, it powers on unless the battery is totally dead. And it never charges close to full even then without the above workaround. Planning on taking the phone in. It's annoying, and my battery life seems shorter with the constant almost-notifications (which started out looking like they came from a variety of apps). Hopefully there's an official solution.
 

jdock

Senior Member
Dec 27, 2011
256
68
I would say various kinds of debris could get in the charging port and have enough conductivity to be detected as water. I always hated USB port covers, but at least they prevent this problem.
 

Hollowtech2

New member
Aug 23, 2017
1
0
Fix for moisture detected

The contacts in the usb c are loose and may be cross connecting. I fixed mine by taking the charge cable type c end and squeezing them lightly with needle nosed pliers so the flat sides were BARELY concave. This fixed the problem and I am able to use the original cable to fast charge again.
 

ghostknyght

Member
Aug 22, 2011
27
1
The contacts in the usb c are loose and may be cross connecting. I fixed mine by taking the charge cable type c end and squeezing them lightly with needle nosed pliers so the flat sides were BARELY concave. This fixed the problem and I am able to use the original cable to fast charge again.

This kinda sorta is working for me. I can slowly move an unplugged USB cable in the port and trigger the notification pop up. As opposed to constantly this now happens intermittently. It started after getting my phone wet. 1 bowl of rice later and the moisture error is gone, but the USB debugging notification appears and disappears rapidly every so often.
 

SheBattass

New member
Sep 22, 2017
1
0
Moisture issue, nothing is working?

Reboot with it already plugged in does not help. My phone will NOT stay off now? Every time I select "power off" it restarts as soon as I plug it in. I have no clue what to try now. Seeing if draining my battery will help. Light moisture contact days ago but nothing more than droplets.
 

jtkl

New member
Sep 29, 2017
1
1
For those who're still having issues, the following worked for me:

1. Power off the phone and then power it back on. (This alone should help but if you have power savings mode enabled, carry out step #2)
2. If you have power savings enabled, turn it off and then power the phone off and back on.
 
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spiderio

Senior Member
Aug 28, 2009
1,209
917
Jakarta
I've got the same message after swimming with G6, I've tried to toggle the usb connection port and try to charge it while off / shutdown.. And it works
 

puckhead89

Member
Oct 7, 2010
16
1
I've had the same problem. Moisture warning while it's not the case. Lated 3 days and suddenly it was gone. Phone restarted also when trying to charge with power off. Sometimes after couple of restarts it would load. And connecting the cable very shortly helped also someone. It seems to me that it is a bug in the devices because we are not alone with this problem
 

Slickoz69

New member
Oct 13, 2017
1
0
At least you aren't alone

Same problem happened to me. It was a slow over a week process. First a flashing usb icon I had never seen before then every one in awhile the usb moisture warning started popping up here and there. Still I'm not alarmed. Flash forward to a week later (today) and not only can't I charge my phone passed 4% (after the airplane mode trick seemed to have worked but only briefly) I brought it to Verizon I tried wirelessly charging and using two other corded charges and nothing would make it less than 2 hrs and 30 mins charge time then it's turn on and just die again. Employee was familiar with the prob gave me the warranty # and ill have my new phone tomorrow. In the mean time I've discovered of the 5 places i tried to charge my phone including the Verizon store all power sources were ports or extension cords etc . I found that plugging it into the wall outlet works. Shocker right? Well I hope that the make sure its charger to outlet revelation for myself helps others as they wait for the new phones...:laugh:
 

jucca

Senior Member
Jun 3, 2010
138
11
Split
Had this problem for more then month, and this is how I managed to get rid off that moisture message.

1: Go to Apps>Configure Apps (3 dots menu in upper right corner)>Special access>Modify system settings>Show system (3 dots menu in upper right corner)>LG System server - turn off "Allow write system settings"

2: Apps>Show system (3 dots menu in upper right corner)>LG System server - Turn on "Silent"

Of course, you must be 100% sure that is false message about moisture in USB port
 
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    I think G6's moisture sensing algorithm (or whatever crap does it) is very, very sensitive to any anomalies in our USB port. In my case almost every time I "wash" my phone I let it dry for 30-40 minutes, then plug it in, it charges for around 5 minutes then the plug in - plug out cycle starts and "Moisture in USB port" warning pops up so I have to leave my phone for even longer period of time. And no, blowing inside the port and trying to dry it with compressed air, hair dryer, etc. usually does nothing.

    But I prefer the sensors to be overly sensitive to moisture, rather than not to be enough sensitive and damage our phones.

    If it were a problem with the phone really being wet i would say i agree, but we are talking about errors when the phone hasnt been near water or whatsoever.

    This happened to me but i havent been near water with my phone, i had it lying on the table the whole evening so this is some kind of bug or faulty hardware..
    2
    I had the same issue as the original poster about a month ago. I have spent the last few weeks testing and found that for me changing developer settings back to "charging" from "file transfer" has worked. Not saying it will work for you but give it a try!
    2
    I have survived this menace..!! Take A piece of clean dry cotton and use your LG Sim opening key to push the cotton into the USB Port clean thoroughly and after 2-3 minutes of cleaning BAM.>!! The vibration stops and now my awesome phone can be charged properly
    2
    I plugged my phone into a computer USB port and switched the USB options to Charge Only and Always and the moisture warning went away.
    2
    Had this problem for more then month, and this is how I managed to get rid off that moisture message.

    1: Go to Apps>Configure Apps (3 dots menu in upper right corner)>Special access>Modify system settings>Show system (3 dots menu in upper right corner)>LG System server - turn off "Allow write system settings"

    2: Apps>Show system (3 dots menu in upper right corner)>LG System server - Turn on "Silent"

    Of course, you must be 100% sure that is false message about moisture in USB port