yashsingh1/xdaforums huggingface dataset:
[Nexus 4 Q&A, Help & Troubleshooting] Luxferro:
@ OP,

If your computer still can't detect your phone (another words you can't access files of the phone), then most likely it's the contacts for the data pins (D+ D-). And since those are used to put to the phone in high current charging mode on the wall charger, that would explain your problem.

If you haven't already, blow out the connector, and try to examine the contacts with a magnifying glass of some sort. Maybe you'll get lucky and it's just some debris or something preventing good contact to the D+ and D- pins. If you can't see anything and it looks prefect, chances the micro usb connector has poor solder joints to the PCB or something along those lines.

Micro USB ports are so brittle. This is why people gotta be careful when plugging in and unplugging cables. Don't just yank it or carelessly do it. It's just a very poor design (micro usb cables and connectors)... there is so much leverage on the block of plastic sticking out of the connector all it takes is a little force the wrong way. Also why wireless charging is a nice addition and the main reason I bought a wireless charger.
[Nexus 4 Q&A, Help & Troubleshooting] andrewhansen86:
Anyone know if the micro usb port on the nexus 4 is ubs 2.0 or usb 3.0?
[Nexus 4 Q&A, Help & Troubleshooting] reddv1:
I started using a Samsung ac charger (one piece) and now I always get ac charging on the phone. So I think the culprit is the Nexus 4 charger.
[Nexus 4 Q&A, Help & Troubleshooting] warpstar1:
I am having the same issues, it was taking me forever to charge so I googled the issue and came across this thread.

LG charger would go into USB mode when plugged into the wall. However if I disconnected it and re plugged it then it would change to AC. I think it could be a defective charger.

I used my samsung charger and all seems good (so far). Its been getting hot and its been charging for about 30 minutes.
[Nexus 4 Q&A, Help & Troubleshooting] krhainos:
It is USB 2.0 -- a USB 3.0 connector would look like this : http://i00.i.aliimg.com/photo/v3/425018848/Blue_micro_USB_3_0_cable.jpg

Note the extra segment that makes the connector wider.
[Nexus 4 Q&A, Help & Troubleshooting] ben_pyett:
Slightly topic related question. (Rather than create another thread for another charging question)

Q1 : When charging I have no lights/led indicators illuminated (on both stock and aokp) - is this the normal? - intended behavior?

I'm used to HTC/Samsung, that tend charge at one colour (amber/red) and then display another colour when full (green). This would seem sensible to me, so that we ensure that we don't over charge the battery and over heat the phone?

Q2 : Another favour to ask: can someone please post a close up picture, of the two Nexus 4 USB cable plugs, as I've managed to confuse several USB leads and don't know which came with the Nexus, which I may need for an RMA return?

Thanks in advance
[Nexus 4 Q&A, Help & Troubleshooting] cole631:
Sorry I haven't been monitoring this thread very closely guys but here is the latest update: Thank you to everyone who posted trying to help me with my charging issue. I am almost 100% sure that my issue was a faulty charging port on the phone. I tried many many combinations of cables and adapters to no avail. I got my replacement and I am freaking loving it charges up just fine and I am getting great battery life. If anyone else was having the same issue I would really recommend getting an RMA. It is a pretty easy process and you get to keep your phone until you get the new one. Thanks again everyone!
[Nexus 4 Q&A, Help & Troubleshooting] krhainos:
You don't have to babysit charging devices much anymore. Modern batteries and charge controllers don't overcharge or overheat the battery -- barring defects or failures.

I use Light Flow Lite to set the notification LED to change orange/green when charging. https://play.google.com/store/apps/details?id=com.rageconsulting.android.lightflowlite
[Nexus 4 Q&A, Help & Troubleshooting] deepdeep34:
How do i do this?

---------- Post added at 03:35 PM ---------- Previous post was at 03:29 PM ----------

Never mind found it

https://support.google.com/googleplay/bin/answer.py?hl=en&answer=2411741#US
[Nexus 4 Q&A, Help & Troubleshooting] THE_KINGDOM:
anybody confirmed that this problem is a defective charger or defective phone?
[Nexus 4 Q&A, Help & Troubleshooting] originaliidea:
Its not the charger as i ordered a new mains one and i'm having the same problem. Going to have to get a replacement, although im worried that the same thing will eventually happen to the next one.
[Nexus 4 Q&A, Help & Troubleshooting] AlexF01:
**Resolution**

These phones need to be replaced or serviced. I will describe my entire experience, maybe someone else shares it.

1) 2nd day of use, plugged in to charge at night. Woke up, unplugged, and noticed the low battery warning and heat.

2) Got to work, charged a little bit... unplugged... used a bit more... Like I have always done with any Android phone (or not) I ever owned.

3) Phone battery got really low... used original cable and connected to computer. It eventually discharged all the way to 0% and turned off. At this point I did not get the "battery animation" when the phone was charging in OFF state, instead it was showing me a blinking red light. Used to electronics I figured that the USB could not charge it as fast as it was discharing and the red light was showing me a depleated battery state. No panic YET!

4) Phone still in red light state. Called Google Play Support and was asked to hard reset the phone by pressing power and volume down at the same time. Nothing happens. Leave the phone charging again...

5) Day 4: Accidentally by plugging the phone in after trying the reset I get the Google logo, phone boots, gets to the password screen and shuts off for lack of battery. Suddenly I get the battery animation. Excited!!

6) Day 5: The next morning... turn phone on and notice it at 82% battery. Discharges to 0% not even half through the day.

7) Day 6: Manage to charge the phone to 100% by putting it in Airplane Mode. Runs down to 0% in about 3 or 4 hours.

8) I was then able to test the phone with my friend's charger who had just gotten his N4. My charger works fine for him, his charger works the same with me, showing USB Charge when plugged to the wall. His N4 when plugged to the computer is recognized as USB storage, mine doesn't get recognized at all.

9) Called Play Store again: Was asked to go through the replacement process. Also found out a friend had the same problems, sent her phone to a general repair store who charged her USD 225 to fix the phone. She lives in Brazil so it was the only option.

10) Having ordered a repacement from Google, stopped using the phone. Charged it to 100% and turned off. Battery runs to 0% when in OFF state. Charged again to 100%, same result.

Well, hope this helps!
[Nexus 4 Q&A, Help & Troubleshooting] ceejay83:
I had intermittent usb charging when plugged into the wall. Think I had a bad USB cable. Switched the cable and it's been fine.
[Nexus 4 Q&A, Help & Troubleshooting] diablos991:
I'm having the same issue with USB charging no matter what, and with the computer not recognizing the USB port.

Since I got my phone from local classifieds, there is no recourse other than to pay shipping and send it to LG and wait 2-3 weeks without a nexus.....

Needless to say, it sucks.
[Nexus 4 Q&A, Help & Troubleshooting] fjavierm:
the same here

I have the same problem.

The charger Genuine charge when it wants

I think it could be a bug.

Or app

For example. Light flow

I think it solves problem when you close all apps open and plug off and in the cable

Anyone had news of Google or a replacment ?
[Nexus 4 Q&A, Help & Troubleshooting] fjavierm:
well,

Anyone who had problems with Charge 'Solved' it?

I have uninstalled 'Light Flow' but it was not the problem

And i think it should be the 'Charger' but i dont have other charger to test

My problem is

-------------------

When i plug the charger Wall on my Nexus 4, sometimes dont charge and detect it like a 'Usb mode' not 'Ac mode'

If i unplugged and plug again sometimes solve it and charge again

---------

I suppose i have to call to GOOGLE but i dont want to be 3 o 4 weeks withoth phone
[Nexus 4 Q&A, Help & Troubleshooting] noodles2224:
To solve it, buy a wall charger. These USB to AC adaptors suck. It doesn't always charge as AC when plugged to the wall.

Sent from my Nexus 4
[Nexus 4 Q&A, Help & Troubleshooting] ianleet:
After a few days I had received my phone I had tried to charge it overnight using the USB connection from my PC. I had set the alarm to wake up the next day but there was no point as the phone had actually completely died. This was interesting as I used to charge my old HTC Legend through the computer and it worked fine. Maybe cause it is way more power hungry than the HTC but who knows. These days I only charge it through a wall socket via a splitter and it hasn't let me down yet.

Just a warning if people need to wake up the next day for work!
[Nexus 4 Q&A, Help & Troubleshooting] Nocturnal86:
I solved it by using a different USB CABLE the one that mine came with didnt have all the pins in it and it would switch from ac to usb at what seemed random. Now since i used a different USB cable with all the pins have had no issue whatsoever! with that anymore.
[Nexus 4 Q&A, Help & Troubleshooting] ruzkay:
Hello guys,

when my phone is plugged in and I'm using it it switches to USB-charging which results in it discharging faster than it charges...

This seems to be because it gets hot but I mean this happens even during light use like browsing or using a chatting application.

Can i get a replacement for this or do all Nexus 4's have this issue?
[Nexus 4 Q&A, Help & Troubleshooting] fjavierm:
well

i will buy a new cable and/or new charger and i hope to solve the issue

i like so much my nexus 4 and i have only found this problem
[Nexus 4 Q&A, Help & Troubleshooting] thephantom:
Same issue. My fix was to use the official charger that came with my Galaxy Nexus. Didn't change to usb anymore. At first I just changed cables but I got the same result so it's definitely the charger
[Nexus 4 Q&A, Help & Troubleshooting] ruzkay:
I think it is not really the charger it is actually the phone. Other chargers sometimes work because they often have 0.8A and the device gets less hot but also takes longer to charge. This phone was supposed to work with the included 1.2A...
[Nexus 4 Q&A, Help & Troubleshooting] Nocturnal86:
Its the USB not the charger. Use a different cable with the same charger and its fine.
[Nexus 4 Q&A, Help & Troubleshooting] yogeshmha:
this problem may arise if you have been using any custom rom or kernel..

mention that . and you may get a solution
[Nexus 4 Q&A, Help & Troubleshooting] UltimateGoblin:
I've always been thouroughly stock and the issue arose from thin air. I called Google and they're sending me a new device. As somebody already said, I just hope that this one will work fine.
[Nexus 4 Q&A, Help & Troubleshooting] cruizgaray:
I'm facing the same issue. Just to track the possible cause, any of you have installed Trickster Mod?

Best regards

PD: Any time I have this problem, enter CWM and wipe cache and dalvik. It seems to work but the issue returns. I've uninstalled Trickter to check.
[Nexus 4 Q&A, Help & Troubleshooting] UltimateGoblin:
R: Nexus 4 charging (USB) when plugged into wall?

I RMA'd the phone and got a new one. Problem solved. It was most certainly a defective charger.
[Nexus 4 Q&A, Help & Troubleshooting] beegbear:
my phone has a bunch of charging issues. And in the last few days my battery readings are very wrong. It's usually stuck on 50% even when I play heavy games, and then some time later would give me a 14% warning.. it doesnt drop in increments like it used to. It's stuck on a certain number and then drastically drops some time later on.
[Nexus 4 Q&A, Help & Troubleshooting] RussianBear:
Started happening to me as well. Would only charge to 93% overnight at around 400mA max and then start discharging while plugged in. Plugged in a spare one s charger and it was good to go. Will be calling for a replacement charger.
[Nexus 4 Q&A, Help & Troubleshooting] clockcycle:
Just a thought, don't know if anyone noticed but the usb connector is slightly longer.

I don't remember which other device it was, nook or nexus7 also had a deeper/ longer connector. And it would react differently depending on how deep it would go. I'm not sure if the N4 usb is built like that.

On another note, my motorola rapid charger says (usb) instead of (ac) and charges the N4 slower than it used to on my S3. But using 1A car chargers with the nexus7 cable will say (ac) on the nexus4 and charge faster.
[Nexus 4 Q&A, Help & Troubleshooting] TechKidTarek:
i do believe its a error with android 4.2.1 which is affecting the nexus 4 (some devices) and the nexus 7 and some nexus 10s
[Nexus 4 Q&A, Help & Troubleshooting] Asadroid:
its the wall charger, or at least on my case, my galaxy nexus charger (1amp) charges the phone just fine.

if i cant get a replacement charger i will get an andru charger or a 2.1 amp (high capacity) wall charger

if changing the charger/cable doesnt work its your phone, if it works well be happy
[Nexus 4 Q&A, Help & Troubleshooting] Disastorm:
I had this problem and rebooting my phone fixed it. Im guessing you tried that though, but just posting my experience here. I have stock Android.

*edit it looks like the problem came back, but it fixed again when i unplugged and replugged in my phone. I guess its just an occasional issue, not sure what causes it.
[Nexus 4 Q&A, Help & Troubleshooting] rec71:
Had this issue twice since 4.2.2

I have had 4.2.2 for less than a week and twice when I've woken up in the morning my device has not been fully charged despite being connected for 8 hours or more. Looking at the battery page it appears to charge fully and then the charge slowly drops even though it is still plugged in. I never had this issue with 4.2.1.

And yes, sometimes the battery pages says "USB" instead of "AC" when the charger is connected. Again, only since 4.2.2.

I find it hard to believe my charger stopped working at the same time as the 4.2.2 update. Anyone else seeing this?

Look at the screen shot below - the phone slowly dropped from full charge overnight. The charge at the end is me charging it back up in the car on the way to work. I know there were some tweaks to charging in 4.2.2 so I wonder if they've broken something? Note that I use the Clock Daydream in Night mode - and always have done - but will disable this to see if it helps.

https://docs.google.com/file/d/0B_qEKHTZ4FrOcThxbVhCaTl1U0E/edit?usp=sharing
[Nexus 4 Q&A, Help & Troubleshooting] taff2408:
Looks like I've found the answer to my problem. Out of the box on the first charge my battery only charged to 95%. Following that I have rooted and done a Nandroid backup updated to 4.2.1 and then 4.2.2. During this time my battery never gets to full charge even though being on chage for 8-9 hours. I realise I could go into recovery and do the Battery Stats, but this shouldn't be happening on a brand new out of the box phone. I haven't checked that it is in AC mode when charging but will check tonight. Thanks to all posters:good:
[Nexus 4 Q&A, Help & Troubleshooting] cixpa:
Hi,

I also regularly have intermittent charging (switching several times in less than a second).

The phone may also not fully charge up to 100%.

This happened for the first time during the first charge after 4.2.2 update.

I never noticed this problem with 4.2 or 4.2.1 since november.

I tried with both original LG and another HTC charger.

Since it seems to be related to 4.2.2, I did a factory reset, but it didn't help (4.2.2 was still installed after reset)

Hopefully it's a bug of 4.2.2 which will be fixed.
[Nexus 4 Q&A, Help & Troubleshooting] Spliddo:
This doesn't matter. This is not a 1990 battery. It won't make a difference if you full-charge it or charge it to 50% then use it.
[Nexus 4 Q&A, Help & Troubleshooting] Strider Nemesis:
I thought I had the same issue, but then I found out that the cause of my problem was pretty silly: I wasn't pushing the cable's USB connector all the way into the USB charger's port. It may feel like it's already connected properly, but you may still need to push it hard until it goes in all the way in (even if it already clicked before that). Otherwise, the phone will still charge, but only in USB mode.

I'm posting in case somebody out there has the same "issue" I had.
[Nexus 4 Q&A, Help & Troubleshooting] kal326:
I've had the same type of issue with mine. I plug it into the original wall charger that came with it and it shows that it is charging AC. I check back in 5-10 minutes and see that it is defaulted back to USB. I reconnect the USB cable at the charger and it will usually got back to and stay charging at the AC level for the duration of that charging session. I am not sure if it is a bad design of the AC charger or what. I have another Nexus 4 original charger I have wasn't being used for the first few months because my wife was using the charger from her old phone. I have tried charging my phone with that charger and have never noticed it drop into USB charging mode. I might see if Google will send me a replacement charger. Mine is about 5 months old, is used daily, and spends the majority of it's life in my laptop bag.

It's a pain having to keep checking my phone to make sure I don't have to reconnect the charger to get it to charge at a decent rate.
[Nexus 4 Q&A, Help & Troubleshooting] galaxys:
^Same as above for me... Have to keep checking it. But I'm going to find another cable...
[Nexus 4 Q&A, Help & Troubleshooting] tyea:
Same problem here. I can only charge at usb rate with any charger now. My Nexus 4 is no longer connectimg to two pcs that it used to connect to a couple of weeks ago. Im beginning to think this is a 4.2.2 related issue.
[Nexus 4 Q&A, Help & Troubleshooting] munipandey:
Found fix for my Nexus 4 charging issue shows USB even though plugged in the wall.

I was having this intermittent issue from quite a few days. I found in my case removing the official bumper and pushing the charging cable firmly did fix the issue :fingers-crossed: . I suspect with the bumper the charging cable was not been inserted properly (even though it looked firm also gave the click sound).

Any way after removing the bumper and pushing the cable I am not seeing “the USB charging issue with wall charger”. Now I am a happy camper :victory:
[Nexus 4 Q&A, Help & Troubleshooting] thuanngotau:
Many people (including me) who don't use the bumper and the problem still exists, bro!

My N4 also suddenly switch from AC charging to USB charging w/o any reason!
[Nexus 4 Q&A, Help & Troubleshooting] munipandey:
Well i do some time get the USB charging, however unplugging and re-plugging (with Little bit of force) does solves the issue for me.
[Nexus 4 Q&A, Help & Troubleshooting] thuanngotau:
Sure but I can guarantee you it's not the problem of the microUSB connector because after turn off the electricity of the wall socket then turn on, my N4 return to AC charging immediately! :confused:
[Nexus 4 Q&A, Help & Troubleshooting] tyea:
I experienced a similar path to charging rate degradation. Now, I can only charge at USB rate and no windows computer will recognize my phone. I have no USB file transfer capability. I've even replaced the USB ribbon circuit in the phone. Something is fouled deep down in the firmware (or there is a hardware malfunction), and I have no way to flash a factory image back to the phone.

LG-E960
[Nexus 4 Q&A, Help & Troubleshooting] csanz91:
I have exactly the same problem as you. I am going to request an RMA, but before I will need to flash the factory image which in our case is more complex because of the broken USB. However I have been looking for a solution and I have found this http://xdaforums.com/showpost.php?p=34749844&postcount=2, I havent tried it yet, but I think it will work, and we will could request a service for our phones.
[Nexus 4 Q&A, Help & Troubleshooting] tyea:
You first. I'm chicken, and like using pie with Carbon ROM. If that approach fixes the USB problem let us know. If the USB still won't communicate with the PC, then I'd rather live with the limited rooted state I'm currently at. I can't even restore a backup from my custom recovery. The phone will get stuck on the Google boot loader logo. If I get a bad ROM update my only option is to wipe and reformat all data and the phone will boot with the last working ROM . I may just buy another Nexus 4, but I'll probably regret that with new super phones on the horizon. I should have bought that white one days ago when I was hovering my finger over the buy button, as I cursed at my phone successfully booting after wiping everything on the phone.

LG -E960
[Nexus 4 Q&A, Help & Troubleshooting] csanz91:
I have just finished the process and unfortunately the problem persist. I am going to call Google to see if they can fix my phone, I hope that otherwise I will be stuck in stock forever :(
[Nexus 4 Q&A, Help & Troubleshooting] filthykid:
The charging status switched between AC and USB when plugged into wall. This started happening after 4.3 update. Sucks
[Nexus 4 Q&A, Help & Troubleshooting] moses992:
Same here ...I recently had my screen replaced so I was thinking maybe the guy who installed the screen messed up with the battery or something, or that my charger was faulty. But im guessing its the update since i only started noticing this after the 4.3 update.

I still dont know exactly when or how it happens. Cant tell for sure if its completely random or not.

Can anyone tell if it really is the 4.3 update thats causing this ?? Any solutions ?
[Nexus 4 Q&A, Help & Troubleshooting] filthykid:
Yeah every now and then i have to come and quickly check whether it's charging on AC or USB. Weird and frustrating. Nexus 4 is more of a "test your patience" device. :/
[Nexus 4 Q&A, Help & Troubleshooting] 7unk3r:
I´ve had this problem since day 1, but in my case i could not get google to switch since I´ve imported my N4 from usa to Brazil, what I´ve done is using the original charger with another usb cabe, in this case a motorola one, but my friend use a usb cable from Samsung and it works as well.
[Nexus 4 Q&A, Help & Troubleshooting] Bettz:
I've noticed this on my nexus for the past 2 months.

My nexus keeps switching whilst on charge from Ac to USB.

I was putting my phone on charge when going sleep and waking up in the morning with the battery in the red.At first I thought it was my USB cable as I was using a 3 metre one off Amazon.

So I changed the USB back to the nexus 4 cable but ive still got this issue any ideas???

I've no case on my phone so it not interfering with the USB slot.

I've had this problem since the 4.3 update

The phone will change from ac to USB charging randomly if I unplug the USB then connect it again it seems to stay on ac charging
[Nexus 4 Q&A, Help & Troubleshooting] raptir:
I've run into the same issue recently. I'm not sure if it coincided with the 4.3 update but it happened right around the same time. The odd thing is that it only seems to occur with the stock charger (and any cable). My old HTC Incredible charger works fine. The Nexus 4 charger also works fine with other devices.

Edit: It also does not seem to be related to the temperature of the phone. Even if I leave the phone unplugged and let it cool down, it only runs at (AC) mode for about 3 seconds before it switches to USB mode.
[Nexus 4 Q&A, Help & Troubleshooting] moses992:
Switching the USB cable works for me. For now i guess ..

But i do believe the 4.3 update had something to do with it.