Develop Bugs

Speaker phone defaulted on

So still running a froyo based Rom and whenever I make a phone call it always defaults with speaker phone on. Just started doing this a couple days ago. Tried rebooting, cleared cache and still the same. Any suggestions?
Sent from my PC36100 using XDA App

If its caused by the car dock mode I think I found a fix.
I turned my phone off, cleaned out the USB port on my phone and bridged all the connections in the charging port with a piece of aluminum foil then removed the aluminum foil and rebooted it.
It happened after buying a charger from five and below. I'm thinking its caused by poor insulation allowing static charges on pins that aren't supposed to have a charge on them, however, I am not sure what causes it...
Either way, cleaning didn't work but the crumbled up piece of aluminum foil did the trick. Give it a try and let me know if it helps so I can chalk it up to actual fix or random chance.

Action B said:
If its caused by the car dock mode I think I found a fix.
I turned my phone off, cleaned out the USB port on my phone and bridged all the connections in the charging port with a piece of aluminum foil then removed the aluminum foil and rebooted it.
It happened after buying a charger from five and below. I'm thinking its caused by poor insulation allowing static charges on pins that aren't supposed to have a charge on them, however, I am not sure what causes it...
Either way, cleaning didn't work but the crumbled up piece of aluminum foil did the trick. Give it a try and let me know if it helps so I can chalk it up to actual fix or random chance.
Click to expand...
Click to collapse
Well the car panel app starts up when I reboot the phone so I unchecked the automatic start and the app don't open anymore. So I basically just take the foil and shove up in the port then plug the charger in?
Sent from my PC36100 using XDA App

I had the same problem just a few days ago. I took my phone in after having putting it back to stock (Stock Rom and S-ON). They ran the diagnostics and then replaced my phone for $35 under the 1yr warranty. Their first suspicion is water damage but if your water markers are in perfect condition and your phone looks like its in good shape then they might replace it. My 1yr launch day phone looked like the day i got it so they replaced it without any questions. Good Luck!
==My Original Thread about this same issue==
http://forum.xda-developers.com/showthread.php?p=14400365

MattC74 said:
Well the car panel app starts up when I reboot the phone so I unchecked the automatic start and the app don't open anymore. So I basically just take the foil and shove up in the port then plug the charger in?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Ok, let me post very clear instructions on what I did. If your car dock comes on when you turn the phone on , this is the exact same problem I had.
DO THIS AT YOUR OWN RISK, I DO NOT GUARANTEE THIS WILL WORK AND I AM NO RESPONSIBLE IF YOU DAMAGE YOUR PHONE. Below is exactly how my phone was fixed once and for all.
Here are very specific instructions on how I fixed mine:
1. Power off phone
2. Remove battery entirely
3. Get toothpick, CAREFULLY and GENTLY clean all debris in the port, I pulled out a ton of dust.
4. If you have compressed air, use it and clean it out with that as well
5. Take a piece of aluminum foil, crumple it up a bit and carefully stick it in your charging port and bridge all the tiny pins together, BE GENTLE but kinda move it around and make sure all the pins get touched by the aluminum foil at the same time.
6. Remove aluminum foil from charging port and discard.
7. Put battery back into phone
8. Power on and hope your phone doesn't have its speaker on next time you make a call.
Good luck.

Well apparently my phone must be f'd up. Tried the fix posted above a few times with no luck tried 3 different chargers with no luck. So I guess maybe I should unroot and maybe get the 3d. Thanks for the suggestions guys.

Thanks for this post, I was about to post the same thing. Ended up doing the tin foil trick (took some from the hat I wear on my head). No more answering on speaker phone

So the strangest thing happened. Made a call before lunch and phone went straight to speaker as usual..went to lunch and left phone in the car, car was hot when I came back went to make another call and no speaker lol. Plugged in headphones and was able to control volume. And so far made couple more calls and all is good. Seems it took a week for it to work itself out idk.

Its def the charging port causing the issue. Had the same thing happen to mine last week on my Launch Day evo (Hardware 0002).
The link to that thread:
http://forum.xda-developers.com/showthread.php?p=14397719#post14397719
-If you dont feel like reading that thread then ill give the short version.
I tried cleaning it out with electronics cleaner and it didnt help. Heck, i used a bit to much on my last attempt (of 4) and it got under the screen. The phone still worked like a champ but i hated that water look. So i claimed Ins on it and paid the 100 on it.
I should have been smart and had unrooted and taken it to the sprint store and paid 35 for the warranty.
Live n learn.

Sonjiin said:
Its def the charging port causing the issue. Had the same thing happen to mine last week on my Launch Day evo (Hardware 0002).
The link to that thread:
http://forum.xda-developers.com/showthread.php?p=14397719#post14397719
-If you dont feel like reading that thread then ill give the short version.
I tried cleaning it out with electronics cleaner and it didnt help. Heck, i used a bit to much on my last attempt (of 4) and it got under the screen. The phone still worked like a champ but i hated that water look. So i claimed Ins on it and paid the 100 on it.
I should have been smart and had unrooted and taken it to the sprint store and paid 35 for the warranty.
Live n learn.
Click to expand...
Click to collapse
Thanks for the info..I spoke to soon yesterday as the problem returned. So I guess I unroot and get the EVO 3d on the 24th.
Sent from my PC36100 using XDA App

Hard reset worked for me
Sent from my PC36100 using XDA Premium App

had same issue, will try tinfoil trick.
In the mean time i found the app NoDock, loads a kernel module to disable dock entirely--works to stop dock and speakerphone nonsense.
Read more here:
http://forum.xda-developers.com/showpost.php?p=15199350&postcount=18

slackard said:
had same issue, will try tinfoil trick.
In the mean time i found the app NoDock, loads a kernel module to disable dock entirely--works to stop dock and speakerphone nonsense.
Read more here:
http://forum.xda-developers.com/showpost.php?p=15199350&postcount=18
Click to expand...
Click to collapse
I'll second the NoDock. I bought the paid app and it was the only one of a few I found that worked reliably. No issues for me anymore. I'm not bothering with replacing my phone at Sprint as I plan to leave them as soon as Galaxy S2 comes out anyway.

This was a bug caused apparently by Skype for me, in fact almost all the bugs on my EVO 3D are coming from Skype.
No Skype running or logged out, no problem.

onyx00 said:
I'll second the NoDock. I bought the paid app and it was the only one of a few I found that worked reliably.
Click to expand...
Click to collapse
ThanK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!

kaeXo said:
ThanK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
That app worked for me, But its caused by a broken charging port, I unrooted my phone and s-on took it sprint showed them the car dock problem and the speaker on straight into calls and they replaced my evo.

[INFO/REFERENCE] USB Port Problems - Car Mode/Vlingo/Ghost Charging

This post is to describe the issues I've had with the USB Port in my E4GT. You may want to keep this thread handy in case it might help in the future.
This is software agnostic, so the kernel/ROM is not relevant.
So -- anywho -- yesterday I was out of town purchasing a new vehicle and noticed that my phone was getting really poor battery life. I generally can make it through a day with light usage, but I was getting serious, serious drain. I also had my first LOSs -- three of them within a hour. Since the beginning of October, I have only had one LOS, and that was a "ghost LOS". I think the LOS was obviously a major issue in the battery drain, but what I describe below could have had a serious effect as well.
I took the phone off overnight charge at 8:30 AM. After some discussions with the salesperson, he needed to do some stuff. I was waiting and reading a forum with xScope Pro (they didn't have Tapatalk). All of a sudden, Vlingo popped up and asked me to accept the license agreement. I cancelled out of that and the phone told me I was in car mode. I told it to deactivate car mode, and everything was okay. When I was using my EVO 4G, the forums were full of messages about car mode activating, but I never had that problem. I figured it was par for the course that one of my Androids would have this issue. By 4:30 PM, I had the car mode issue come up a few more times, but my car charger and my home charger worked fine.
This morning, my phone would not connect to the computer. I also had a strange "green screen" where everything was in a green hue on my phone. It apparently self-corrected about 10 seconds after it occurred. It would turn on the charging light, but not connect to the computer. My USB jig also did not function. It wouldn't turn the phone on. I started freaking out and was trying to prepare it to go back for a repair/replacement, but Odin wouldn't find it. I blew into the USB port to try to clear out any possible particles... That didn't help. I eventually jiggled/wiggled/cast magic and got it to Odin. Thinking it could be an issue with the kernel/ROM, I hoped that Odin back to stock would fix the problem. I did a ##RTN# reset and plugged it in. Absolutely nothing. No charging light, no beep from the phone or computer.
I started searching and found some XDA threads about the Int'l SGSII and apparently it is a known problem with these phones -- some people even replacing the USB ports themselves. I didn't look to see if the particular part was available for our phones, but I was able to solve the problem by the following:
Parts Required:
1. Dentek Floss Pick (or whatever is non-metallic and small)
2. Contact Cleaner (I didn't use this, but some people said it helped them)
My technique was to carefully use the toothpick to poke around in the USB port and flush out any particles that were in there. I didn't see anything come out. The interesting part of this was a suggestion to "bend the PCB down a bit". That's the part that sticks out of the USB port for your cable to seat on. I moved it down slightly (it doesn't seem to be terribly hard to move). Once I plugged the phone back in, everything worked again. My USB jig works, the regular charger works, the computer recognizes it. I plugged/unplugged it in many times after the "fix" and it seems to work!!
If you try this yourself, be careful not to damage the PCB in the USB port. I'm not responsible for anything that happens.
tl;dr version:
? USB port acting weird? Can't connect? Getting random car mode?
! Clean it out with contact cleaner/skinny toothpick
! Possibly bend the PCB down a smidge

Yeah you see this a lot on android phones and the normal cause is LD or in other words corrosion in the usb port
Sent from my SPH-D710 using XDA App

I just started having this issue last night after having it replaced once already for a "random menu key". Has this issue resurfaced for you at all since this "fix"?

I had the same problem, however, I read somewhere else to nudge the usb port up instead of down. I nudged it up (towards screen) just a bit, and it seems to work fine, now (fingers crossed). YMMV, maybe some are off kilter towards the top and others toward the bottom.

same problem
I have a epic 4g touch that was poorly rooted and needs to be restored but unfortunately odin will not recognize it WHAT SO EVER.
it charges but wont register in windows 7 64bit (desktop) or 32bit (laptop)
I've been using the same micro usb cable.
This mught be the solution, if it works i'll report back

Why does it have to be non-metallic?
Can't I use a pin or something?

Thanks for starting this thread. I just started getting the car mode problem where it will flicker and prompt me to exit car mode.
I'm guessing this trick will work.
Sent from my SPH-D710 using XDA

The metallic may short circuit your phone if you touch the pins together.
eljean said:
Why does it have to be non-metallic?
Can't I use a pin or something?
Click to expand...
Click to collapse
Sent from my SPH-D710 using Tapatalk 2

Hope it works for you!
mjs2011 said:
Thanks for starting this thread. I just started getting the car mode problem where it will flicker and prompt me to exit car mode.
I'm guessing this trick will work.
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
Sent from my SPH-D710 using Tapatalk 2

Seems good now. Not sure if this is safe or not, but I plugged my charger in, and then slightly tilted it down bending away from the screen. Since doing so, I haven't had any issues of car mode googling on/off on its own. It's been two hours since I did the trick where beforehand, the issue would occur every 10 minutes or less.
Sent from my SPH-D710 using XDA

toussant said:
I have a epic 4g touch that was poorly rooted and needs to be restored but unfortunately odin will not recognize it WHAT SO EVER.
it charges but wont register in windows 7 64bit (desktop) or 32bit (laptop)
I've been using the same micro usb cable.
This mught be the solution, if it works i'll report back
Click to expand...
Click to collapse
I'm sorry, I'm not trying to be a troll, but can you please elaborate on how a phone can be "poorly rooted"???
Sent from my SPH-D710 using xda app-developers app

The flash went bad and it got bricked. thats what I meant
:0)
Sent from my SPH-D710 using xda app-developers app

Ha! That actually worked. My phone started having the "forever on" red LED, and behaving as if it was always charging (screen wouldn't turn off after 5 seconds when locked like it normally does when unplugged). Bent the little pcb tab down with the end of a plastic toothpick and the light turned off. Hopefully it'll stay, but I'm guessing if it starts up again I'll just have to bend it a little more. THANKS.

Brent,
Glad you got it working! I have had to do this once more since I posted initially -- it really does seem to work.
Brent212 said:
Ha! That actually worked. My phone started having the "forever on" red LED, and behaving as if it was always charging (screen wouldn't turn off after 5 seconds when locked like it normally does when unplugged). Bent the little pcb tab down with the end of a plastic toothpick and the light turned off. Hopefully it'll stay, but I'm guessing if it starts up again I'll just have to bend it a little more. THANKS.
Click to expand...
Click to collapse

Been flashing a few roms and everything was going ok until,,,
Tonight Neither my laptop nor my desktop would recognize my phone! Tried different cables, ports, cuss words,,, nothing was working.
A small amount of pressure downward on the usb tab and, BINGO! Back on the road to flashing.
Thanks OP And XDA for being here. :laugh:

I started experiencing this car mode bug recently, and after doing a factory reset, reformatting all partitions and flashing 3 different ROMs with no luck resolving it, I was sure it wasn't related to software and was getting used to the idea that all the bumps, drops and abuse I had put my e4gt through had finally caught up with me. luckily found this thread and gave it a try. 6 hrs later and everything seems ok. thank you!
Sent from my SPH-D710 using Xparent Blue Tapatalk 2

Worked like a charm for me.
Hey thanks for this post man!! I am using SGS 4g, I was struggling with car mode issue since past few days. I was literally scavenging google and XDA until I came across this very valuable post of yours.
I didn't use the materials you suggested instead I used my old useless waste toothbrush to clean up the dirt and blew air in the USB port through my mouth forcefully. And ofcourse I had to bend the PCB a bit.
In the beginning the USB storage wasn't being detected on my laptop, then I bent the USB PCB a bit up and down very gently, this didn't work , so I decided to uninstall the USB storage device drivers from the device manager of windows 7. And there it was, done!! Hehehehe and boy oh boy was I thinking my phone was due for a repair or a check up.
It is a bit risky but as they say finders keepers, losers weepers....
Once again very useful post, thanks for the initiative :good:

Awesome. Glad it worked for you!
Faisal Merchant said:
Hey thanks for this post man!! I am using SGS 4g, I was struggling with car mode issue since past few days. I was literally scavenging google and XDA until I came across this very valuable post of yours.
I didn't use the materials you suggested instead I used my old useless waste toothbrush to clean up the dirt and blew air in the USB port through my mouth forcefully. And ofcourse I had to bend the PCB a bit.
In the beginning the USB storage wasn't being detected on my laptop, then I bent the USB PCB a bit up and down very gently, this didn't work , so I decided to uninstall the USB storage device drivers from the device manager of windows 7. And there it was, done!! Hehehehe and boy oh boy was I thinking my phone was due for a repair or a check up.
It is a bit risky but as they say finders keepers, losers weepers....
Once again very useful post, thanks for the initiative :good:
Click to expand...
Click to collapse
Sent from my SPH-L720 using Tapatalk 2

I have gotten so many replacements for this problem it's insane. I just got another one tonight. I have 4 batteries and an external battery charger now just to deal with the not being able to charge issue so my phone doesn't die while I'm at work. I'll have to try this next time it happens because I'm sure it'll do it again.

[SOLVED!](Q) Help! Phone showing it's charging when unplugged...

Since this morning my phone says it's charging when in fact it's unplugged. I tried cleaning the charging port, wiping cache, full wiping and reinstalling the rom, everything and don't understand why it'll never get off charging state.
I do check in settings while unplugged it says not charging and when plugged in says charging, but it's stuck saying "on battery for 23 min" and the icon never stops from charging....
Any suggestions? It's really annoying... Never had a single problem with my One S...
SOLUTION: Clean the charger port with a hard pointed object (that's what she said), make sure you clean and dirt or particles from underneath the middle piece in the charger port.
Also, if you notice the middle piece is too close or making contact with the bottom, use the pointed object to CAREFULLY bend it up a little.
Do all this while the phone is off and battery out. Use compressed air if available. if you wet it then completely dry it before putting the battery back in.

did you try wiping the Dalvik cache when you did the regular cache?

masterkamon842 said:
Any suggestions? It's really annoying... Never had a single problem with my One S...
Click to expand...
Click to collapse
Soo... do you have a One S with this problem, or a Galaxy Nexus?

zuberio said:
did you try wiping the Dalvik cache when you did the regular cache?
Click to expand...
Click to collapse
Yes I did.
martonikaj said:
Soo... do you have a One S with this problem, or a Galaxy Nexus?
Click to expand...
Click to collapse
A nexus.
Sent from my Galaxy Nexus using Tapatalk 2

Have you tested what happens when you install a different ROM?

something like this happened to me about 2weeks ago.
It would say saying/ disconnected none stop.. if i didnt notice it would of burned my screen.
I just turned the phone off and removed the battery

Read an weep: http://code.google.com/p/android/issues/detail?id=23789
A LOT of users have reported this problem, yet Samsung claims it is water damage and won't do a warranty repair: http://www.reddit.com/r/GalaxyNexus/comments/tqlii/samsung_refusing_to_honor_warranty_for_infamous/

There is already a thread on this which has some useful info:
http://forum.xda-developers.com/showthread.php?t=1427539It ranges from yep your charging port is f*cked or it just needs a clean and little tweak.
To get mine fixed I gave it blast with compressed air and a little needle to make sure all the lint/gunk was out of the port. I made sure the port was straight (if it looks like it is bent downwards slightly, try and pop it back up softly). Then what fixed it for me is to hit it with a little electrical contact cleaner.
I have a feeling the port was getting shorted by something as each of the pins on the microusb port are very close.
Hope that helps

Interesting - I'll have to keep an eye out for something like this on my phone.
I guess first step is the compressed air blast with a needle cleaning of the port. If that doesn't work then on to Samsung to see if they'll honor a warranty repair (outlook not good on this - apparently they claim water damage). Worst case you can get a replacement OEM charging cable off ebay:
http://www.ebay.com/itm/OEM-Charge-...440?pt=LH_DefaultDomain_0&hash=item33746d1eb8
And fix the faulty part yourself or have someone you trust do it.
[EDIT] here's a link to ifixit for step by step instructions on how to take your phone apart http://www.ifixit.com/Teardown/Samsung-Galaxy-Nexus-Teardown/7182/1#.T7pzI8XdOII

Thanks to all the suggestions, it does the same thing even after wiping, installing other roms or going back to stock. I tried cleaning it with a toothbrush but will try with a toothpick or something stronger. Will give updates once I do.

I would suggest the electrical contact cleaner is going to be a good bet too. If it is water damage, it could just be a bit of water has gotten in there (from a table, rain etc) and then when its dried impurities could be shorting the plug.
I am not sure what stores in the states have it (maybe bestbuy?), but we have an electronic store here called Jaycar which sells it. You could even just slip in and give it a quick spray in the isle.
Turn the phone off before doing it, and make sure it is ECC!

Fixed! It was the charger port. All i did was clean it out with a metal pointed object. I also noticed the middle piece was touching the bottom edge. It could've been making false contact. So i bent it up just a little and voila problem solved.
Hopefully this thread may further serve as future reference. Thanks everyone for your help!
Sent from my Galaxy Nexus using Tapatalk 2

I know I don't have a Galaxy Nexus, but the Nexus S can also suffer from the same problem. I believe it's because of the USB ports that are the same.
Inside the USB port of the phone there is a flat plate which slides into the wall charger/USB cable, I've noticed that when this is "bent" down it will show that it's charging when it isn't, so all you need to do is to find something (I used the tip of the missus'one plastic nail file) to "bend" it up about a millimetre or two and all should be fine.
Worked for me, so I thought I would try to help out here because I know how infuriating it can be.

I had this problem a couple of weeks ago. I also had issues with being unable to connect my phone to a computer. I contacted Samsung, explained my issue and they sent me packaging to send it away. It took me 45 mins to get the computer to recognise my phone to return it to stock, but i managed it. I then wrote a nice little letter explaining the issue, that others also had the issue and that I recommended changing the whole charging board.
I got it back a week later and lo and behold, they'd taken my advice and fitted a new charging board. Now it might just be me, but the inside of the micro USB port looks slightly different. I just can't put my finger on why.

Hi, I had this problem but i sprayed "metal cleaner" on a toothbrush and wiped the contact and now it works fine again :3

This happened to me yesterday. First the phone doesnt charge, it was at 25%, After that i charged it with phone turned off, then turned on and battery whas 50% but still not charging. Turned off again, plugged the charger and it looks like was chargin, when i turned on again it was at 12%, like the charger just discharge it xD. After that the problem began, the battery icon shows like charging when unplugged....
Looks like i managed to clean it with a needle, now the chargin notification is gone, and i can transfer files via USB to my laptop, but still i cant charge with AC :-/
And when i plug the usb cable, the notification icon comes again :-/

OMG Thanks it's alive it's alive

After some time my charge port started giving me issues again. I tried messing around with it but all I did was break it. Eventually I bought a replacement flex cable and ended up installing it myself. Very easy to do. Looked up a video on YouTube and in 10 minutes my phone was charging again.
Sent from my Galaxy Nexus using Tapatalk 2

I had to replace my micro usb charging port
When my phone wouldnt stop charging after being disconnected i ended up solving the issue by going here for the part and tools which is $5 posted.
ebay(dot)com.au/itm/Replacement-Charger-Port-Flex-Cable-Tools-Samsung-i9250-Galaxy-Nexus-GQFC441-/180922260932?pt=AU_MobilePhoneAccessories&hash=item2a1fce9dc4#ht_1368wt_1014[/url]
And i used this guide to pull my nexus apart.
ifixit(dot)com/Guide/Repairing-Samsung-Galaxy-Nexus-Micro-USB-Charge-Port/9641/1[/url]
Just be very careful on step 6 "Some have reported the cable is soldered to the mainboard. This was not the case on this CDMA version. It may be soldered in newer revisions or the GSM model."
I broke my volume down because the guide didnt have a warning !
I hope this might help anyone else who is having problems
n-0-s

masterkamon842 said:
After some time my charge port started giving me issues again. I tried messing around with it but all I did was break it. Eventually I bought a replacement flex cable and ended up installing it myself. Very easy to do. Looked up a video on YouTube and in 10 minutes my phone was charging again.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Could you link the video you used to help replace the flex cable. I can't seem to find one. Thanks!

Phone only charges when it is off.

Starting two days ago, my phone will only take a charge when it is off. When it is on, it acts like nothing is happening when I plug it in, although sometimes it flashes the charging symbol whether the charger is plugged in or not. I have the latest atop build, although I have been running the rom for a couple weeks with no problems. Also, the gps struggles at times. Any ideas?

Same problems here with charging...you are not alone!!
Sent from my GT-P1000 using xda app-developers app

I had this problem too. Was gonna take it back to Sprint so I Odined back stock and it's started charging. So try doing that. It worked for me.
Sent from my Galaxy Nexus using Tapatalk 2

My wife had that issue when we first got her phone. Ended up re flashing the ROM. I still ended up getting it replaced by VZW since it had the issue with dropping signal.

Had this issue with my VZW Gnex. It looks like it is charging when it is off but I'm willing to bet it charges really slowly. There's a defect on GNEX models where the pin on the connector gets bent down.
Try either using the stock charger as it forces the pin up a bit or search on xda for this same issue. I fixed it by using a thin knife blade and gently pushing up the connector. I only had to do it once and it worked well.
Hope that helps!

erodriguez87 said:
Had this issue with my VZW Gnex. It looks like it is charging when it is off but I'm willing to bet it charges really slowly. There's a defect on GNEX models where the pin on the connector gets bent down.
Try either using the stock charger as it forces the pin up a bit or search on xda for this same issue. I fixed it by using a thin knife blade and gently pushing up the connector. I only had to do it once and it worked well.
Hope that helps!
Click to expand...
Click to collapse
Hi, I've been having this problem since a couple of days and this post just remembered me that I had run into the same issue in my very old Motorola Milestone. Here's what I did then and what I did now on my GNex, and I think i've found a solution.
You'll need a needle (the thinner the better) and a can of electronic cleaner, if you've ever opened a PC to clean the memories and slots, this is the one you've used alongside the compressed air can. You can find this on your local electronics shop, and it shouldn't be too expensive (think of an equivalent of RadioShack, since in my country there's no RadioShack).
Now, let's get on with it.
Turn off your GNex and pull out the battery.
Now, VERY GENTLY, with the tip of the needle try to pick out all or the majority of the lint deposited in the charging port. You'd be amazed.
To wrap up, apply a bit of the electronic cleaner into the charging port, clean with a cloth the excess on the chassis of the phone (do NOT use the cloth into the charging port, because in doing so you'll risk leaving lint behind) and let the charging port dry for 5 or 10 seconds, it evaporates really quickly.
Now put the battery back in and power on the phone once more. Let it fully boot and plug your charger in (as recommended in this post, you may want to use the one that came with the phone). In my case it worked.
Not sure if it's definitive solution but it does work now. This happened to me about a month ago running AOKP, I thought it was the rom doing some funny bussiness with my phone, so I switched to Paranoid Android, and it happened once more the day before yesterday. I was ready to switch roms today once more but decided to Google around and again, thankfully I came across erodriguez87's post which reminded me of what I did in the past. I'll update this post for this next month to let you know if the issue happened again or not, to encourage people to apply this solution (or not). Cheers.

erodriguez87 said:
...I fixed it by using a thin knife blade and gently pushing up the connector. I only had to do it once and it worked well.
Click to expand...
Click to collapse
I used a toothpick to bend it up slightly (towards the screen). I didn't want to use anything metallic in case shorting the connectors might cause damage.

Weird thing!!
As everybody here I am having this very same problem, not charging anywhere (mains or pc), even with stock cable and charger.
However, when I tried the eSATA port it worked fine, and I can access the phone normally
Any idea why?

Solution ?!
I had the charger read normal USB ports and charger.
I have done these steps so far, so I guess they must be the solution, however I do not know if the solution is permanent or as some people pointed out it is a come-and-go problem, anyway here are the steps:
- Restart bootloader ( shutdown your phone and hit all three buttons together - GNEX - and press volume down button once and then power button, then volume up and power to start phone again).
- Enable Developer Options ( You do this by tapping several times on the Build Number in About Phone)
- Enable USB debugging in Developer Options.
Again, I don't know which solved the problem, and if it is a permanent one, anyway try it and let me know the result

My son is having exactly the same problem, his Galaxy Nexus only charges when it is turned off.
I found a solution (sort of)....
I discovered that when I put the charger in the wall socket 3 times quickly after eachother (like: tak tak tak) and leave it in the third time, it sometimes starts to charge.
maybe you have to try it a few times to see it work, it doesn't always work.
It should work within 10 times trying i would say.

[Q] Stuck charging? - Hardware, yeah?

I've already googled and found that it seems like this problem happens to galaxy nexus owners often so...
I noticed yesterday morning that my phone would think it was still charging despite being unplugged. Looking into the battery stats it could tell when it was or wasn't.
My suspicion is that my use of an old micro usb cable (plastic housing was kind of chipped off) led to it wiggling more than normal, and something got messed up within the micro usb port of my gnex.
It still charges fine. I went on to update to 4.2.1 (dirty flash I guess?); upon booting up it would flip back from charging and not charging for a little bit, then go back to charging.
I think I was able to get my phone to light up and say it was charging while off as well, so I'm pretty damn sure it's hardware...
My issue is that I'm still within a year of my warranty, but I've already rooted and unlocked, and am not 100% familiar with reverting and back anymore... I haven't tried contacting Samsung either.
I think I could live with it being stuck charging, as long as it still charged. It just seems like it has problems reading on whether or not it is or isn't, not being able to charge.
Should I try to seek a warranty fix? What's my best option at this point?
Thanks!

look in your usb port, make sure that none of the fingers are slightly bent touching each other. ive found thats the most common cause of the phone showing that its charging when its not.

simms22 said:
look in your usb port, make sure that none of the fingers are slightly bent touching each other. ive found thats the most common cause of the phone showing that its charging when its not.
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I think something may be touching, but I've never looked before so I'm not sure if it wasn't like that to begin with. I'm going to try taking a picture of it tonight when I get off work, but I don't suppose you could explain to me what the fingers are? I tried googling briefly but didn't find anything.

IF you haven't fixed this, try a toothbrush with some rubbing alcohol on it. I had the same problem, and it solved my problem. I imaging some dirt was just shorting a connector.

I had this issue happen to me before. I decided to send it into Samsung for service. I thought it was hardware and I would be dome with it well it is now 3 months later and its doing the exact same thing again, so at this point I know it isn't software, ROM, kernel. I did all that troubleshooting the first time around.
Anybody else had this problem return after being repaired? Is it more than just the micro USB port? I am going to try the tooth brush thing when I get home though. I don't see any pins bent but I will look closer
Sent from my Galaxy Nexus using xda premium

So I got a toothbrush and alcohol and will be testing that out tonite. I also bought some canned air. Anybody else chime in on what to try? I really don't wanna send it in AGAIN
Sent from my Galaxy Nexus using xda premium

Just dip a qtip in the rubbing alcohol and dab it on the port or dip the toothbrush I'm the alcohol and then shake it out. You don't want to soak in the connector just enough to help remove any contaminants.
Sent from my Galaxy Nexus using xda app-developers app

Worked really good xD... At first didn't seem to work, but after charging it and disconnecting the charger the icon disappeared ... That was a couple days ago and so far so good.
Thanks a lot xD
Sent from my Galaxy Nexus using xda app-developers app