Hi
I'm not sure if this is related to just my particular computer or a general charging bug. Several times I've plugged the Nexus 4 into my computer USB port to charge overnight (okay it's slower by USB but overnight it doesn't matter and convenient to use the computer USB port) only to find it hasn't charge but continued to discharged.
My computer USB ports are powered while the computer is in Sleep mode (suspend to RAM) and I've charged many gadgets over night with no problem, including the Nexus 7.
To replicate the bug:
1) Computer is on, plug the Nexus 4 in to charge, Nexus confirms it is charging by icon in notification tray and it will start to charge
2) Computer goes to sleep, Nexus 4 still shows it is charging, however at this point it is no longer charging, and actually starts to discharge quicker than normal.
3) While computer is still in sleep mode, unplug the USB cable from the Nexus, plug it back in, phone now starts to charge normally.
There seems to be a bug when the computer sleeps and disconnects the USB data part of the connection, the Nexus gets a bit confused and stops charging even though it still indicates it is charging. I suspect the faster discharge I've seen is because the Nexus 4 thinks it is powered and doesn't deep sleep as it would on only battery power.
An HTC One X, a Nexus 7, an MP3 player and numerous other gadgets have all continued to charge normally after point 2.
Thought it worth pointing out in case others have similar issues and wonder why the phone isn't charging.
Regards
Phil
Noticed the same just a day ago, went to take my phone off charging from my laptop and was very surprise/d/ that i had lost 2-3%
Sent from Nexus 4 - cm10 - faux kernel beta001
Same here with Mac. Once goes to sleep it drains phone even though icon shows its charging.
I've noticed this too. The Nexus 4 is my only device that won't charge from my PC while it's sleeping.
Edit: Actually I need to use the PC, so this isn't going to work
Had this happen too. Is there a fix? or is it just like that
Thanks for this. I wandered why my phone was 0% one night I had it on the charger all night.
Mine shows the charging symbol on the statusbar, but at the battery screen in settings it shows it isn't charging,
Screenshot included.
Screenshot was taken when my laptop was in sleep mode with my nexus 4 connected over usb.
Had the same thing happen to me.
Well, after JB update 4.1.2, the same happens with my GNex. So it must be OS related.
Sent from my Galaxy Nexus using xda app-developers app
This is super annoying as that's how I've charged my phones for years. Now I have to put the stock wall wart somewhere and have an extra long USB cable to reach my desk. Sometimes I forget about this bug when developing stuff and it says "charging" so I wake up with a dead phone
I'd noticed this issue when charging with a battery pack, though I haven't tried it from my computer USB port yet. One thing - if the phone charge is above 50% it seems to be fine, it's only when it's below 50% that it doesn't recharge from the battery pack. Has anyone noticed something similar when charging from a computer USB - does it work if the phone battery is over 50%?
Same here--my Nexus 4 doesn't charge by a sleeping computer. Every other phone worked fine (though I had to connect my iPhones before the computer was asleep for them to continue charging after it was put to sleep). I've tried this when my Nexus was over 50% and with two different cables. It also worked with my Galaxy Nexus from OS 4.1 to 4.2.
I have the same thing when I try to charge it over a powered USB hub (you definitly get 5V from it) while the PC is turned off... It shows that it is charging but it is not.. really annyoing especially when you use it as your alarm in the morning (don't ask, that is how I noticed it the first time ). Never had a problem when the PC is turned on though...
something like this happens to me but charging with AC adapter...it would say connected to AC then after awhile when i wake the phone up, it would say charging with USB but it is connected to AC adapter...to get back to charging as connected to AC, i would have to unplug and replug...weird
Try different USB Ports and other USB cable.
I have a notebook which has on the left side 2 USB ports and on the right side 1 USB port.
The mobile doesn't charge with original USB cable on any of these USB ports.
But if I use a standard USB Cable and plug it into the USB port on the right side, mobile gets charged over night.
However, when plugging in any of the USB ports on the left side, it won't get charged.
(Left side is sharing the 500mA, right side won't)
And yes, my computer is put to sleep, just keep the USB ports alive
Yup is also happens to me. I think it is a bug, might as well use the mains as it works better and it charges very quickly.
4.2.1 has a lot of bugs that needs to be sorted out in my opinion, and this is one of them.
Sent from my Nexus 10 using xda app-developers app
It's a bug with the Nexus 4. I have tried the same USB port with a:
1. Nexus 7
2. Galaxy Nexus
3. Galaxy Note
4. Motorola Charm
All except the Nexus 4 work fine charging when computer is in sleep.
Hi
Fingers crossed this is fixed in the next OTA happening shortly. In the change log we have this:
5194a3d power: charger: need sometime to handle the usb disconnecting events
Fixes listed here
A computer going to sleep would cause the data part of the USB connection to disconnect, if this event is now handled correctly by the charging system perhaps it will continue to charge normally after the computer has slept. Like I say, fingers crossed but looks hopeful.
Regards
Phil
A work around that most of you probably know is that as soon as your computer has been put to sleep, unplug the cable and replug it again. The phone will start charging again.
Sent from my Nexus 10 using xda app-developers app
Hi,
A few days ago i tried to connect my phone to the computer but the computer started making connect and disconnect sounds repeatedly. The phone wasn't able to connect to the pc and it didn't charge. I tried another pc with the same result, i also tried other cables again with the same result. But the phone still charged when I connected it to the charger.
Last night however my phone also stopped charging(AC). It was 1% when i woke up and it refused to charge (tried different chargers/cables). I only got it to charge the second time i turned it off and connected the charger. So, the usb port does still work, sometimes when i shut the phone down.
Is anybody familiar with this problem or do you think it's a hardware problem and should I bring it to the store.
Thanks,
Hello guys, about two days ago after charging my phone normally I used it for the day, when I got home I tried to connect it to the PC to edit some files and it didn't connect, tried plugging it to wall output to charge, nothing. I tested it with 3 different OEM cables, and nothing... after a while of being connected it started connecting, disconnecting, and so on... a couple of minutes after I disconnected it and connected it again and it started charging normally, this happens while turned off or on... but sometimes when I disconnect the cable and plug it back in again it will stop charging again and repeat the same story.... a weird thing is that when i try to enter flashmode or fastboot mode on pc it will work at the first try so, is this a port problem, battery problem or software problem (i don't think it would be a software problem though) since it has been charging normally before this happened)?
water can cause these problems check inside the flap if a white sticker exists
try using another charger not just the cable
Hi everybody,
I upgraded my Xperia Z to Lollipop. Immediately after that I got the following problem in the order described:
- Phone was at 80% after upgrade.
- It was not charging after the upgrade, and I had no more connection to the phone via USB anymore. Also PC Companion did not see the phone anymore.
- The battery drained after some time so the phone went into "brick-mode" because connecting it to the pc via USB, nor connecting it to (different) wall chargers did not charged the battery.
- With the phone compeletely empty, I just left it connected one evening to my wall charger, and when I woke up the next day the phone was again completely charged to 100%.
- But no the circle starts from the front again --> no connection to PC and not able to charge the phone until it goes out completely, waiting for some hours connected to the charger, and only then it starts charging again until 100%. I also once booted the phone before it was at 100%,.. even then it will not go on to charge when the phone is on, NOR will it continue to charge when I shut it down again manually (so not let it drain to 0%).
Does anybody had/has the same issue? I think it is a waste not trying to fix this because the phone is still in a very good condition.
Any advise would be helpful, thanks, Pieter.
Hi. I have a Xperia Z c6603 that suddenly started to charge only when turned off. And even that, only sometimes.
If I have the phone turned on, and connect the USB cable, the phone won't detect it, so it won't charge. And won't even be detected by a PC with ADB. Also, trying to charge it by using the side golden contact won't help, neither.
If I have the phone turned off, and connect the USB cable, the phone will always detect the USB cable, the LED will go red, the screen will show the SONY logo, and then will show the battery icon with the current charge level. And then, sometimes it will start charging. But I will have to try to connect and disconnect the USB cable several times until, maybe, it would do it.
The USB port was replaced sometime ago, and it has been working with no hassle at all. I don't want to get a new battery delivered, if I'm not 100% sure that the battery is the problem.
Can be an electronic trouble with the charging circuit? Has anybody been in this very same situation?
Thanks all.