For some reason the HD7 doesn't seem to charge from PCs. I've tried my HD7 and another unit, and while both show the orange light when plugged into a PC, they're both depleted the next morning if I leave them to charge from a PC.
I've tried multiple PCs' ports, all of which charge my HD2, iPhone, and such just fine-- only the HD7s seem to have an issue.
The only way to charge them seems to be to use an AC adapter (putting out 1A, unlike PC USB ports, which are usually specced at 0.5A).
Anyone else able to charge from a PC?
that's odd. I've been charging my HD 7 with my laptop just fine.
Can't be that all those other sources don't work. Something is wrong with cable or the phone.
Confirmed this with one more HD7 and four more PCs-- not an individual device, PC, or cable issue.
What happens is that the HD7 will charge while the connected PC is on, but then if the PC goes into standby mode, the HD7 stops charging (while all other phones - HD2, iPhones, etc. - continue to charge).
To get the HD7 to start charging again, you need to unplug and plug it back in (it'll resume charging even though PC is still in standby) or wake up the PC.
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
Any thoughts on why my phone is being discharged when i connect it to my D-Link USB splitter when said splitter is then connected to my PC (Dell XPS12 running windows 8.1)? Running Viper One 5.8.0
I used to be able to plug it in and it would charge. Now it discharges the phone. But i disconnect the computer, it will charge.
It also seems to not charge when connected to directly to a PC running windows 7.
Googled and searched the heck out of this, but haven't seen anything. Any help would be appreciated.
Thanks in advance.
If the phone thinks it is connected to a PC, it draws less power (500 mA I think) than if connected to AC power. So, with the hub connected to the computer, the phone isn't drawing enough power to charge it. Without the computer attached, the phone draws more.
My guess is something on your phone is causing it to drain faster than it charges at the lower rate.
I had some problems with my Xperia V usb port.
1. Phone didn't charge when on, it only charged when OFF!
2. When I connected USB to Laptop nothing happened, not even charging (When Android is on)
3. When I connected USB to laptop with fastboot/flashmode it disconnected after like 10-15 seconds every time.
4. And the last phase was I couldn't charge my phone even if it was off.
I got it fixed and exact same problems started after a short while.
Currently my phone doesn't charge or notice USB connection when on and only charges when off but I have to put it in specific position so that it starts charging.
Hello guys
I recently changed from S9+ to S21 and I have a question : I usually use my desktop computer to charge my phone during night while I sleep. (with data USB cable)
I have no problem when the desktop is on (under windows) : my phone charge (with USB cable) and I can transfert photos.
When my computer is off, when I plug the phone, the screen show the charging screen for 2 seconds and stops
I have no problem with my S9 to charge when the computer is off. (I know that there is an option in the bios to keep USB charging when computer is switched off)
It looks like the USB power is too low, and the S21 doesn't want to charge with it.
Maybe ther is an option in the phone to authorize this kind of charging ?
yan74s said:
Hello guys
I recently changed from S9+ to S21 and I have a question : I usually use my desktop computer to charge my phone during night while I sleep. (with data USB cable)
I have no problem when the desktop is on (under windows) : my phone charge (with USB cable) and I can transfert photos.
When my computer is off, when I plug the phone, the screen show the charging screen for 2 seconds and stops
I have no problem with my S9 to charge when the computer is off. (I know that there is an option in the bios to keep USB charging when computer is switched off)
It looks like the USB power is too low, and the S21 doesn't want to charge with it.
Maybe ther is an option in the phone to authorize this kind of charging ?
Click to expand...
Click to collapse
There isn't such an option in the OS as of now. It's possible that the S21 battery amp requirements are more than those of S9
Do you think the computer's USB port has a lower supply when the computer is turned off ?
We don't know what kind of computer you have, or what it's USB port capabilities are. That's something you can try to figure out, looking at your computer or manual for the computer's motherboard. Also check the BIOS settings, sometimes you can control the power state of the computer when it is "off" and whether power is still supplied to the USB ports (e.g., to allow the computer to boot up when it detects mouse or keyboard USB inputs).
As an example, my MSI motherboard has a feature where you can install software to set the USB ports to a high power output state, so you can power USB devices using more than the standard output current.
My Dell laptop has a USB port with a special symbol that means it's for high-power output for charging phones etc. So it can handle charging modern phones, and puts out more than 0.5 amps, but only for those USB ports with the special symbol (lightning bolt).
You'll need to just find out more information about what your computer is capable of.
I have a MSI gaming pro carbon X370 ( the optional wake by USB is on, without that, you're right, the USB are totally off and nothing will charge)
I did more investigations .... I tried all my USB cables and all USB ports and finally find 1 combination that works.
Only 1 of 12 USB cables worked ( the one took from an external HDD ) even the original cable supplied with the phone didn't work and nor a 100W Ugreen cable...
And only the front USB work. The different USB directly on the motherboard doesn't work with this phone, despite I always used them to charge many devices...
for information the working cable is a KAIBAO revision 3.0
Finally it doesn't work with this cable : it take longer before the phone stops to charge, but it stops too ...
Hi,
You need to check the power requirements of your new phone.
Thank you.