[Q] Phone turns off when cable is plugged in - LG Optimus L9 P760, P765, P768, P769

Hey all,
I run a P760 with stock JB rooted. I also tried out PACMAN before on the phone, but came back to stock.
One day, when I plugged in the charger of my phone (wall), the phone went off and could not turn it on again until I took the cable out of the phone. The behavior is the same when plugging it in USB. The strange thing is that the phone, while off, charges and runs normally otherwise.
Also, if I plug in the cable without connecting it to the computer, the phone does not turn off.
Anybody knows why this happens?
Thanks!

I was having the same problem with this phone. After searching around on the Nexus forums, somebody mentioned the charging port was bent. Somebody also mentioned that the pins connecting the battery to the logic board were also at fault.
I recently purchased an aftermarket replacement battery, so I thought it might be the latter.
Here's how I fixed it: I took a tiny screwdriver and straightened the charging port connector slightly. I also pulled the battery out and pulled on the connectors near the physical battery a tiny bit with some tweezers (be careful not to rip them out!)
After doing both of these, I plugged my phone in and it stayed on.
Hope this helps.

Related

Inductive charging not working

I set my phone down on the charger after work this evening and the phone made the proper sound but when I checked a hour or so later it was not charging nor had it charged any since I set it down. I tried picking the handset up and putting it back down on the charger but nothing I did would get the phone to charge. I powered the phone off and back on but this did not help either.
I checked to make sure it wasn't a problem with the phone by plugging the phone into the supplied microUSB cable in my PC and it started charging and stayed charging.
I finally fixed the issue by unplugging the inductive charging pad from its power supply and waiting a few seconds and plugging it back in. It appears to be working but I wanted to get a read from the community and see if anyone else was having this issue as well.
Thanks,
Brian

Prime won't charge

Hello
My prime was charged a few weeks ago, and i haven't used it in a while so it discharged and turned off.. Now when I try to plug It in, it shows that it is charging, but nothing happens..
It charged for 3 hours, and when I unplug it, it can't turn on.
If I leave it plugged in and turn it on, it shows a screen with low battery icon and turns off immediately.
I can charge the keyboard just fine, the charging led on the keyboard turns green after a while.
It's rooted, but stock rom and have never unlocked it, so no customer recovery..
Hope someone can help me out :/
Sent from my GT-N7100 using xda app-developers app
Battery not charging on tablet
Moonbloom said:
Hello
My prime was charged a few weeks ago, and i haven't used it in a while so it discharged and turned off.. Now when I try to plug It in, it shows that it is charging, but nothing happens..
It charged for 3 hours, and when I unplug it, it can't turn on.
If I leave it plugged in and turn it on, it shows a screen with low battery icon and turns off immediately.
I can charge the keyboard just fine, the charging led on the keyboard turns green after a while.
It's rooted, but stock rom and have never unlocked it, so no customer recovery..
Hope someone can help me out :/
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
It sounds like your battery may have died on you.
Are you using the AC charger or the usb charger?
Mine takes a long time on the usb but charges better on ac.
Are you charging them both while docked, if so try undocking and charging them separately.
How old is the battery, Prime now?
The battery is guaranteed for 12 or 24 months also, just check where your serial number is and it will have a 12 or 24 number on the right under your model number.
Also,l check the charging port and make sure no debris or foreign matter has accumulated in it and some of the pins aren't bent.
If none of this works it means you have an internal problem and a different recovery won't help because you still cannot get it charged.
Post back with your results please.
GTIM2L8 said:
It sounds like your battery may have died on you.
Are you using the AC charger or the usb charger?
Mine takes a long time on the usb but charges better on ac.
Are you charging them both while docked, if so try undocking and charging them separately.
How old is the battery, Prime now?
The battery is guaranteed for 12 or 24 months also, just check where your serial number is and it will have a 12 or 24 number on the right under your model number.
Also,l check the charging port and make sure no debris or foreign matter has accumulated in it and some of the pins aren't bent.
If none of this works it means you have an internal problem and a different recovery won't help because you still cannot get it charged.
Post back with your results please.
Click to expand...
Click to collapse
I've tried both charging it through USB from my computer and through the wall charger (original charger and cable).
I've tried charging it both docked and undocked, separate and together.
The Prime is bought about 7 months ago, and i have checked for dust and such in the various parts.
It says "12" below the serial number btw, but i bought it from England (i live in Denmark) though Amazon, so it would be hard for me to return it..
Though there is 1 thing that is bugging me and i'm not sure if it can be the problem.
There is 1 pin that's not aligned with the others on the charger port on the prime itself
Picture to explain: http://i45.tinypic.com/2r4sw7t.jpg
The 2nd pin from the far left is a bit longer inside the device than the others. I've tried to get it out by using a little metal stick (don't know what its called ) but I've been unsuccessful..
The prime obviously gets some sort of connection when i plug it in (though only if i plug it into the wall charger, doesn't happen with USB, which i kinda predicted) and gets enough power to vibrate, then turn on for about 4 seconds to show a big red battery icon (meaning low power) and then turns off..
I've tried to correct the pins on the wall charger so they're more stable and connect better, i've tried putting the wall charger in the freezer for 20min (google'd it as a possible solution, other said it helped them). I currently don't have any other charger or cable that can connect/charge the prime, but i don't think the problem lies with the charger/cable..
I left the dock+prime docked together charging all night and when i woke up, the dock LED was green but it still wasn't able to boot up at all..
Is there anything i can do to reset the Prime? I've tried the little pin hole under the sd card slot, i've tried various combinations of volume up and volume down and power, but i always end up with the screen with the big red battery icon..
Moonbloom said:
I've tried both charging it through USB from my computer and through the wall charger (original charger and cable).
I've tried charging it both docked and undocked, separate and together.
The Prime is bought about 7 months ago, and i have checked for dust and such in the various parts.
It says "12" below the serial number btw, but i bought it from England (i live in Denmark) though Amazon, so it would be hard for me to return it..
Though there is 1 thing that is bugging me and i'm not sure if it can be the problem.
There is 1 pin that's not aligned with the others on the charger port on the prime itself
Picture to explain: http://i45.tinypic.com/2r4sw7t.jpg
The 2nd pin from the far left is a bit longer inside the device than the others. I've tried to get it out by using a little metal stick (don't know what its called ) but I've been unsuccessful..
The prime obviously gets some sort of connection when i plug it in (though only if i plug it into the wall charger, doesn't happen with USB, which i kinda predicted) and gets enough power to vibrate, then turn on for about 4 seconds to show a big red battery icon (meaning low power) and then turns off..
I've tried to correct the pins on the wall charger so they're more stable and connect better, i've tried putting the wall charger in the freezer for 20min (google'd it as a possible solution, other said it helped them). I currently don't have any other charger or cable that can connect/charge the prime, but i don't think the problem lies with the charger/cable..
I left the dock+prime docked together charging all night and when i woke up, the dock LED was green but it still wasn't able to boot up at all..
Is there anything i can do to reset the Prime? I've tried the little pin hole under the sd card slot, i've tried various combinations of volume up and volume down and power, but i always end up with the screen with the big red battery icon..
Click to expand...
Click to collapse
I am 90% sure that 2nd pin from the left is your problem. if you cant find a way to pop it back into place or dont know somebody who can do it for you then you should probably rma.
here is a thread about the pinout. Take a look at the diagram on post 6 http://forum.xda-developers.com/showthread.php?t=1630300&highlight=pinout
Hi there,
My TFP won't charge or be recognized by my iMac. I have changed the battery, no joy; I replaced the charging port; no joy; and got new charger and cable even though all my others charged other devices, .
Any ideas? Much appreciated
acricketer said:
Hi there,
My TFP won't charge or be recognized by my iMac. I have changed the battery, no joy; I replaced the charging port; no joy; and got new charger and cable even though all my others charged other devices, .
Any ideas? Much appreciated
Click to expand...
Click to collapse
This happened to me because the battery connector inside the device was loose, I had to open up the device up and re-connect it. This time, I've placed some tape to try and make it not fall out again. Maybe the battery is faulty?

[Q] i9100 Charging Problem after installing new screen

So my mate gave me his broken i9100, it was dropped quite heavily and the screen cracked, I have replaced the screen and it is working fine, apart from being very slow to charge, and when the screen is on, it will slowly drop charge while connected to a charger.
I have this problem on a wall usb charger, pc usb charger, and car charger.
I did have an issue where plugging in the power would cause the sound to stop coming out of the speaker, I put this down to a possible damaged headphone jack as this was in use when the phone was dropped. I have since replaced both the USB Charging Flex and the Headphone flex and the charging problem continues.
I have ordered some new batteries so will see if this makes a difference, although the phone does charge with the screen off, albeit very slowly.
Does anyone have any suggestions as to why this may be? I am using the recent CM10 nightlies, and have had this problem on other roms also, ie Jellybam.
I do have the screen on full brightness as this is how I like to use my phone, anything less than full I find too dim.
Thoroughly clean the USB connector on the phone.

[Q] Phone Not Charging - Draining While Plugged In

Hey, been on these forums for a while, I rarely ask for help (been pretty lucky with the phones), but I have a question.
My phone won't charge. Or rather, it requires a time consuming process of fiddling, unplugging, replugging, and sometimes minor surgery on the USB port with a toothbrush or a tool I've crafted out of a Q-tip. However, after a night of charging (or some interrupted equivalent that results in a charged battery) the battery quickly depletes while still plugged in.
This is most clearly illustrated when yesterday, at 8:45 I rolled over and checked my phone to see if it had been charged. Pleased to see that it had been charged up to 100% I fell back asleep. When I woke up again to go to school at 9:10, my phone was entirely dead. I couldn't even get it to turn on to the point where it showed the I9100 screen. After following the time consuming and frustrating process of fiddling with the USB port and Micro USB charger, I coaxed the phone to show the powered-down charging screen, where I left it to charge to full.
I have been experiencing this over the course of a few weeks and I have tried many chargers, but only one of them will work at all (Interestingly a Motorola cord). Upon inspection of the USB port, nothing seems out of the ordinary, though the 2 prongs on the outside of the USB port male receiver look slightly different than the inside 2, though they difference is symmetrical.
Does anybody have any idea of what could be plaguing my phone? USB or battery? This is my second SII, a replacement one after my original one was tragically lost in a hot tub . Any thoughts would be awesome.
Thanks
Braidonh
If you are using Siyah kernel have you altered the charging current through EsTweeks?
If so then it is possible that the battery / charging circuit has been damaged. Try resetting the values to default (I think its 700mV on AC and misc and 600mV on USB but dont quote me).
Failing that then some hardware trouble shooting (trying a new battery / external battery charger) will help you figure out what is going on.
Ccarlpearce said:
If you are using Siyah kernel have you altered the charging current through EsTweeks?
If so then it is possible that the battery / charging circuit has been damaged. Try resetting the values to default (I think its 700mV on AC and misc and 600mV on USB but dont quote me).
Failing that then some hardware trouble shooting (trying a new battery / external battery charger) will help you figure out what is going on.
Click to expand...
Click to collapse
My signature is quite outdated... Currently just running CM 10.1 with stock everything. Haven't tweaked anything in that capacity... but will try my other battery (if I can find it). Thanks!
I was having this same problem with my HTC vivid. I tried charging with may chargers, the phone claimed it was charging (orange light lit up) but the phones battery was dying while plugged in. Just like you said, the battery depleted rather quickly when plugged in. Since my phone refused to accept any form of charge I bought an external battery charger and some extra batteries.
However, last week I wondered if maybe there was some sort of dust, or small pieces of sand inside the Micro-USB port on my in my phone that were possibly "blocking" the charger from properly charging.
So I bought an air duster and blew air into the USB port of my phone. I guess there must have been something in there because that fixed my issue and now my phone charges!
Now I have 4 batteries for my phone and an external battery charger.
Try it on your phone, see if you have the same luck I had.
Braidonh said:
My phone won't charge. Or rather, it requires a time consuming process of fiddling, unplugging, replugging, and sometimes minor surgery on the USB port with a toothbrush or a tool I've crafted out of a Q-tip.
Does anybody have any idea of what could be plaguing my phone? USB or battery?
Braidonh
Click to expand...
Click to collapse
Maybe I'm missing something here because you seem to be experienced on this forum and understand about searching first.
Anyway, this sounds like the common USB problem that S2s have. It can be the jack or more typically, the flex cable. You replace the little board. Search for USB in this forum. I just changed mine with one I got on Ebay. Cheap and easy.

[Q] help! Bricked or faulty USB? HTC ONE M7

I have read up in the forums, haven't found my issue. I am pretty sure my phone may have shorted on a cheap car charger. I say this because two days previous, my phone showed a caution sign and that I should use the proper charger.
I unplugged phone, went into work, worked on the car charger fine, but then when I took it off I guess it decided to die. Also, I got an ATT go phone, ZTE. Just for the time being. When I plugged it into the car charger it immediately flickered then restarted. Car charger is thrown away.
My HTC one can be "heard" when plugged into computer, but nothing seen. It also has NFC working/has power, touched to my nexus 7 gives the sound.
Is there anything I can do to fix it? Right now I'm waiting for the phone to die completely (no computer noise or NFC) and then maybe? On the proper charger, no red light is shown on led. Do I have the faulty USB port? I will be getting the M9 when it is available, just be nice to have my trusty M7 back. Thanks for any help.

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