Database Users

[Q] LG G2 not charging at all!

Hi all,
I just bought an LG G2 (D802 international unlocked version) and the behavior when plugging in the charger cable is very strange:
When I plug in any charger (tried 4 different ones with different cables incl. stock), the phone is not charging.
BUT, there are a few strange things happening:
1. On the lock screen it shows "Charging"
2. In the settings menu under the battery menu it shows "not charging" (this is different from being unplugged, then it shows something like "discharging")
3. Sometimes the popup comes up when I plug it in, but not always.
3. When I turn the phone off and plug the cable in, the display lights up (also the LED) and it shows the "charging" battery symbol.
IN ANY CASE, THE PHONE BATTERY IS NOT CHARGING!
Here is what I tried so far:
- Used 4 different chargers & cables
- Tried to charge via USB
- Did a factory reset
Nothing helped so far.
I suppose that its a hardware failure, but maybe someone has a different suggestion/solution?

Only thing i can recommend is maybe do a factory reset to see if that corrects it which i doubt it will. Other then that i would have the phone warrantied then.
If its a software issue then that is at the kernel level. I would assume its a hardware issue though
Sent from my LG-D802 using XDA Premium 4 mobile app

x714x said:
Only thing i can recommend is maybe do a factory reset to see if that corrects it which i doubt it will. Other then that i would have the phone warrantied then.
If its a software issue then that is at the kernel level. I would assume its a hardware issue though
Sent from my LG-D802 using XDA Premium 4 mobile app
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Click to collapse
i think so too. already tried the factory reset, but no luck....

js931 said:
i think so too. already tried the factory reset, but no luck....
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Click to collapse
Maybe op off back cover and see if battery is loose? Warranty.....?

RubbleTea said:
Maybe op off back cover and see if battery is loose? Warranty.....?
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Click to collapse
I sent it back to get a replacement. Was just wondering: Is it possible to remove the back cover on that phone without damage/loss of warranty?

js931 said:
I sent it back to get a replacement. Was just wondering: Is it possible to remove the back cover on that phone without damage/loss of warranty?
Click to expand...
Click to collapse
Yup some ppl I heard were taking off to buff the back cover shine off....hope you get it soon!

Same problem
js931 said:
Hi all,
I just bought an LG G2 (D802 international unlocked version) and the behavior when plugging in the charger cable is very strange:
When I plug in any charger (tried 4 different ones with different cables incl. stock), the phone is not charging.
BUT, there are a few strange things happening:
1. On the lock screen it shows "Charging"
2. In the settings menu under the battery menu it shows "not charging" (this is different from being unplugged, then it shows something like "discharging")
3. Sometimes the popup comes up when I plug it in, but not always.
3. When I turn the phone off and plug the cable in, the display lights up (also the LED) and it shows the "charging" battery symbol.
IN ANY CASE, THE PHONE BATTERY IS NOT CHARGING!
Here is what I tried so far:
- Used 4 different chargers & cables
- Tried to charge via USB
- Did a factory reset
Nothing helped so far.
I suppose that its a hardware failure, but maybe someone has a different suggestion/solution?[/QUOTE
i 've got the same problem , which you mentioned above, could you please tell me did you get any solution to get rid off from this trouble . kindly reply
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Click to collapse

I got a replacement unit, it was a hardware issue.

The same problem i am facing with my G2 Sprint LS980 and i am pretty sure this is not hardware problem because my phone had signal issues and LG charged repair fee around US$ 55. My phone was not rooted before repair and also my phone was charging fast too. It has installed ZVD7 ROM. But once i get my phone it was completely changed. They rooted my phone, They converted my ROM from ZVD7 to Cloud G3 2.2 and they also installed TWRP recovery. But still phone is not charging same like as you posted. I just noticed another thing phone is perfectly charging in TWRP recovery mode. Therefore i am 99% sure it's not hardware issue. 2nd issue is that phone is also not detect with my PC. I tried different drivers but failed. Anybody can help me or suggest me any suitable ROM and provide me correct driver or PC suite?

having same issue , have u solved??
Bilgramiz said:
The same problem i am facing with my G2 Sprint LS980 and i am pretty sure this is not hardware problem because my phone had signal issues and LG charged repair fee around US$ 55. My phone was not rooted before repair and also my phone was charging fast too. It has installed ZVD7 ROM. But once i get my phone it was completely changed. They rooted my phone, They converted my ROM from ZVD7 to Cloud G3 2.2 and they also installed TWRP recovery. But still phone is not charging same like as you posted. I just noticed another thing phone is perfectly charging in TWRP recovery mode. Therefore i am 99% sure it's not hardware issue. 2nd issue is that phone is also not detect with my PC. I tried different drivers but failed. Anybody can help me or suggest me any suitable ROM and provide me correct driver or PC suite?
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having same issue on lock screen say charging but in setting -> battery say not charging but when plunged out say discharging , have u solved??

Same peoblem here

sumeetG said:
having same issue on lock screen say charging but in setting -> battery say not charging but when plunged out say discharging , have u solved??
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Click to collapse
Not yet Dear...It is the piece of junk for me. Now my ROM has been deleted. I want it back

I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.

Maybe putting the back cover on the phone is causing a grounding problem or shorting a circuit. Maybe put some insulating material on the inside of the back cover and then put on the phone?

audit13 said:
Maybe putting the back cover on the phone is causing a grounding problem or shorting a circuit. Maybe put some insulating material on the inside of the back cover and then put on the phone?
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Click to collapse
Yes, I thought about doing this, trying one connectors at a time. Do you think that the sticky part of a post-it note like do? I don't have electrical tape lying around atm :/

Anything that is non-conductive should be fine since it is just a test.
You could also use a non-sticky piece of paper between the cover and the phone's components.

decon89 said:
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
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Click to collapse
So you solved the problem?

I have very same problem decon89 described - I replaced screen and cannot charge it properly. And even worse: charging is possible with the phone being switched off completely. And after phone is charged - I cannot turn on the phone unless i open back cover and unplug-plug battery cable. Phone MAY turn on without unplugging-plugging battery, but it is blind luck. Yesterday i accidently turned off my 100% charged lg g2 and could not turn it back on during whole day. If someone has a solution please share it.

Hi everyone,
I'm so sorry for not following up on this thread. I haven't fix the problem yet, but it worked for same time, then started acting up again.
I've put a few strips of electrical tape on the bottom part of the phone, behind the black plastic thing. I did this because of an issue with my display having a loose connection. This fixed the screen problem, but the charging fault came back.
The idea of putting a piece of paper between the battery and cover did not work at the time, but I'll try it again tonight.
As I'm writing this, the phone is charging with the cover half off. It works, charges, no problem. I can even use the phone even though the bottom part of the cover is off.

decon89 said:
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
Click to expand...
Click to collapse
same here with my phone when i take off the back cover it started charging.

Unable to charge. Battery temperature too low.

I recently replaced the digitizer on a Galaxy Tab 4 & that part at least went smoothly. The problem now is that the tablet will only turn on while it's plugged in... and when it does come on, it displays the msg "Unable to charge. Battery temperature too low." Yes, too low.. not too high.
I've tried re-connecting the battery, letting the tablet sit for an hour & even took the battery out and applied some heat to it with my heat gun(from a distance).
Does anyone know for sure what's causing this?

You must've have disconnected a cable or damged one when you replaced the digitizer. Check back
Sent from my Nokia Lumia 1520

I thought of that also... I had disassembled it again & checked all the connectors. Everything looked ok & after assembling everything again, re-connected everything(again) just to make sure.
Oddly, I have seen posts of people having the same issue with different devices. Most of them never had the problem solved(just had the device replaced).

I had the same problem
Hi there,
althought this isn't a very popular post, I'd like to add my 2 cents, because I had this same situation.
I ran into this same problem, after changing the digitizer and reassembled the device, had the low temp problem. I've noticed too that the glass was a little loose, and if tapping it in some places, the problem solved for seconds, so I dissasembled it again and foud that forgot to put the adhesive between the digitizer and the tablet...... :silly:
The adhesive was still in the old broken glass.
Changed back to the new one, assembled again now WITH the adhesive and the glass, reseated all the connectors in the back (just in case) , and boom, it's charging again like new.
Still haven't assembled the back plastic cover yet, but I guess the result will be the same.
I don't exactly know if the problem was the loose glass or some loose connector (all seemed to be ok), but the problem solved.
Hope anything of this helps.
Regards.
Little George.
voxigenboy said:
I thought of that also... I had disassembled it again & checked all the connectors. Everything looked ok & after assembling everything again, re-connected everything(again) just to make sure.
Oddly, I have seen posts of people having the same issue with different devices. Most of them never had the problem solved(just had the device replaced).
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Display corruption on phone

Weird problem but my phone has a screen that shows a distorted display or sometimes just speckles of random color. It seems the problem mainly occurs when the phone has a SIM in, gets hot, or maybe humid.
I ran stress tests on CPU and GPU for hours with no sim and it worked perfect. Then I put the sim in and later the display went crazy (this is not a touch screen issue). Then I took sim out and it went back to normal. I thought I fixed it by blowing out sim slot, but then the problem reoccurred. I had to take off back of phone (while it was on) and it was immediately rectified. It makes me think that something is getting pressed down too hard. I tried disconnecting the video cable and reconnecting it to see if that will fix it, but this particular phone has not been opened since the factory so it seems weird that it would suddenly get a loose cable.
Any ideas appreciated. I would like to fix it.

sxotty said:
Weird problem but my phone has a screen that shows a distorted display or sometimes just speckles of random color. It seems the problem mainly occurs when the phone has a SIM in, gets hot, or maybe humid.
I ran stress tests on CPU and GPU for hours with no sim and it worked perfect. Then I put the sim in and later the display went crazy (this is not a touch screen issue). Then I took sim out and it went back to normal. I thought I fixed it by blowing out sim slot, but then the problem reoccurred. I had to take off back of phone (while it was on) and it was immediately rectified. It makes me think that something is getting pressed down too hard. I tried disconnecting the video cable and reconnecting it to see if that will fix it, but this particular phone has not been opened since the factory so it seems weird that it would suddenly get a loose cable.
Any ideas appreciated. I would like to fix it.
Click to expand...
Click to collapse
Had this issues after replacing my display!
Antenna cable is near the display eletronic parts in the lower part of the phone, near the usb connector, you've to put a tape on the eletronic, or you'll ever have this interferences when you use the antenna! (Antenna is the grey cable), display elettronic parts are a little square, betwen battery and USB connector, and have the grey antenna cable on them beacouse the antenna connector is near in this part of the phone! Sorry for my bad english, hope this help you!

Disaster3 said:
Had this issues after replacing my display!
Antenna cable is near the display eletronic parts in the lower part of the phone, near the usb connector, you've to put a tape on the eletronic, or you'll ever have this interferences when you use the antenna! (Antenna is the grey cable), display elettronic parts are a little square, betwen battery and USB connector, and have the grey antenna cable on them beacouse the antenna connector is near in this part of the phone! Sorry for my bad english, hope this help you!
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Click to collapse
I haven't replaced the screen on this phone, but when I took off the bottom piece the connector just fell of lower control board. I snapped it back in and we will see. Maybe it simply got loosened somehow by shaking etc... Hopefully that rectifies the issue. Thanks. I was going to swap the lower board (I already swapped upper one) but maybe I can avoid that now.

sxotty said:
Weird problem but my phone has a screen that shows a distorted display or sometimes just speckles of random color. It seems the problem mainly occurs when the phone has a SIM in, gets hot, or maybe humid.
I ran stress tests on CPU and GPU for hours with no sim and it worked perfect. Then I put the sim in and later the display went crazy (this is not a touch screen issue). Then I took sim out and it went back to normal. I thought I fixed it by blowing out sim slot, but then the problem reoccurred. I had to take off back of phone (while it was on) and it was immediately rectified. It makes me think that something is getting pressed down too hard. I tried disconnecting the video cable and reconnecting it to see if that will fix it, but this particular phone has not been opened since the factory so it seems weird that it would suddenly get a loose cable.
Any ideas appreciated. I would like to fix it.
Click to expand...
Click to collapse
Can you post a photo taken by other phone (not a screenshot from your G2) showing your G2's current problem?

Rei Zazie said:
Can you post a photo taken by other phone (not a screenshot from your G2) showing your G2's current problem?
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Click to collapse
It was the lower connector like was said earlier in the post. I had already swapped the upper board with the other phone and the problem continued, when I went to mess with the lower board the connector was loose and upon tightening it down it started to work. I have had an instant of glitch two times in the long period since then, but it goes away immediately. It seems the connector need glued down or something who knows. I am happy though it is working well enough to last me until something comes along that makes me want a new phone.

[SOLVED] Issues after display replacement [LG G2 d802] Red led blinks 8 times + more

I don't know if this is the right section, anyway because it isn't specifically hardware related I posted here... for admins feel free to move in the appropriate thread.
My G2 dropped on the floor and as result I got a complete broken display plus not working touch.
The device, touch apart, worked without issues so as 1st step I made a full backup of sd-like content (music, pictures, etc...) to my laptop.
note: even if touch didn't work I was able to access the device trough adb and a very useful utility (http://marian.schedenig.name/2014/07/03/remote-control-your-android-phone-through-adb/)
Next I ordered a replacement for the display, looked for instructions and changed by myself... and the phone didn't boot or even charge... nothing, the only signal of life was when attached to the wall charger the led blinking in red eight (8) times consecutively then no blink for a second and again blink for 8 times and so on in an infinite loop.
Of course I started to look for solution and tried every kind of combination but none worked.
I started to think that I missed up something during the display replacement or the battery fault or even I fried in some way the motherboard, anyway for what I read it supposed that could be that the battery gone under certain voltage or minimal charge so the motherboard circuit didn't recognize as "good or safe battery", it is simply bypassed by charge circuit.
note: I waited for the new display about 10 days and the device (fully charged) slept (turned off) in a drawer so I don't think it was totally discharged
I disassembled and reassembled again the device but nothing happened so while looking for a solution I saw a video on Youtube (https://www.youtube.com/watch?v=MZwknmWCmOE) solving a issue similar to mine so as instructions I took an old charger (800ma), cut the charger connector and exposed the 2 internal wires (one red and the other gray/black).
Then I opened the device, disconnected the battery and attached directly into the battery connector the two charger wires (in this way mobile motherboard is bypassed).
I used a small piece of tape to stop and make touch laterally the 2 wires to the connector, something like: dark wire -> [ battery connector] <- red wire
Keep in mind that the connector is something very small like (0) where left parenthesis is for dark wire and right parenthesis for the red one.
note: you can't wrong with wires, because the positive (on the battery connector) has a small white triangle.
Of course I found a way to don't move/mess wires before connecting the wall charger... I put another piece of tape at 20cm on the table to keep the cable charger fixed near the phone, then I attached the wall charger...
remember: attach the charger to the wall ONLY when you have finished to place/fix the contacts!
Waited just 1 minute because exposed charger wires was very close and didn't want to fry something... but it was enough!!
Reconnected the battery and voilà the phone turned on!
The phone turned on with almost 80% of charge, all seemed to work... except that I found 2 issues... I suppose because the case didn't match perfectly anymore (I opened the device 4 times and disassembled-reassembled twice)
1st speaker didn't work, so I reopened the device and checked the speaker connector, I discovered that the speaker didn't touch very well so I put a small stripe of tape under the connector (the small vertical green stripe in the lower side of the phone) to lift it and making touch stronger with the speaker module (the black part the come out), here on Youtube for reference: https://www.youtube.com/watch?v=XE2FPmFUrQQ
2nd GPS didn't work very well (discovered after a couple of days) so I reopened the device and applied this solution that worked perfectly: https://www.youtube.com/watch?v=dfS4LpfcLfg
This is my story in the hope to help someone, if you have apparently a total dead phone and the only signal of life is a 8 times blinking red light... now you know what to do!
Regards,
Davide

Thank u for share your story

Congrats on fixing your problem!
suiller said:
The phone turned on with almost 80% of charge, all seemed to work... except that I found 2 issues... I suppose because the case didn't match perfectly anymore (I opened the device 4 times and disassembled-reassembled twice)
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Click to collapse
You mentioned the alignment of the phone wasn't the same as before....
Did your battery swell or change shape at all during this process?
If so could be a sign its on its way out and needs replacement.
A dying G2 lithium ion battery changes physical shape and completely alters the internal alignment of your components.
May be worth an extra 10.00 to replace your battery at this point with a new one

tiguy99 said:
Congrats on fixing your problem!
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Click to collapse
thank you, I was a bit frustrated because I thought to have broken the motherboard, even if it wasn't very easy I didn't surrend and I won!
tiguy99 said:
You mentioned the alignment of the phone wasn't the same as before....
Did your battery swell or change shape at all during this process?
Click to expand...
Click to collapse
I understand what you mean but no I don't think so... it seemed the same size
anyway battery has less than 1 year of life and never showed symptoms or bad behavior, right now is running as before... I can pass easily 24h without recharge

suiller said:
thank you, I was a bit frustrated because I thought to have broken the motherboard, even if it wasn't very easy I didn't surrend and I won!
I understand what you mean but no I don't think so... it seemed the same size
anyway battery has less than 1 year of life and never showed symptoms or bad behavior, right now is running as before... I can pass easily 24h without recharge
Click to expand...
Click to collapse
Sounds good!
Have you found the source of your alignment being off?

tiguy99 said:
Have you found the source of your alignment being off?
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Click to collapse
I checked and found nothing in particular... just a bit near the sim "area", but it seems just a sort of plastic adaptation... as mentioned before I opened, disassembled, reassembled and then closed it 4-5 times (in just few days)

NFC not working after battery change. Any ideas?

Hi everyone,
I recently successfully replaced the battery in my Moto X Pure after the original battery was showing signs of fatigue (charge wouldn't last anywhere near what it used to, would die suddenly from 20% battery power, etc.). I discovered today, however that my NFC is not working. Part of the process to replace the battery involves gently popping the NFC antenna off the old battery (the end of the flex cable with the NFC antenna is held by a drop of adhesive to the battery). I made a point of being careful when I did that, and with the phone now buttoned up again, everything else works 100%.
Aside from the obvious, "you must have broken it when you removed it from the old battery," anyone have any ideas as to why the rest of the phone is 100%, but my NFC isn't working? I checked all the relevant settings -- even turning them off and then back on again, no love. Does the NFC antenna connect via a harness that I would have disconnected to change the battery out? Does it even seem possible that everything else is working properly, but that isn't? Best to just try replacing the middle bezel housing with a $15 eBay special that includes a new NFC flex cable?
Thanks in advance for any ideas.
Edited to add: So, in looking at additional pictures of my phone, I came to the possible realization that the NFC flex that was attached to the old battery probably had to be attached to that exact same spot on the new one to make contact with the motherboard when the phone is put back together. I didn't even consider that it was just a pressure connection there that connected the hidden NFC antenna to the motherboard, and just used some double-stick tape to attach it to the new battery without paying particular attention to detail as to where it needed to be positioned. If someone can verify that I might be on the right track, I'd appreciate it. I'd hate to tear the thing down again for nothing since the back cover is a pain to get off, but this might be a simple fix.

Not sure if this is still an ongoing issue for you (I realize it's been a few months), but I just experienced this today, while changing my own battery--and for the very same reason as you. Yes, it does appear that the NFC module does need to be in the same place as it was on the original battery. I too learned this the hard way. Since the NFC module wouldn't stick to the new battery, I placed a piece of Scotch tape over it. Little did I realize, there are contacts on that module, that must interface with something else on the assembled phone. After a second disassembly, removal of the tape, and a check of the location in reference to the original battery, my NFC is working once again.