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.
Related
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.
Here's an interesting discovery - would be interested to know if anyone else has the same issue.
Basically, my old WM6.5 phone (Touch Pro) used to take charge from a powered USB socket, even when the computer was turned off.
Plugging the HD7 into the same USB socket, and the phone won't charge. That's fine, I can understand there may be valid reasons for it.
What's *really* interesting is that if I leave the phone plugged into this powered down PC overnight, the battery is pretty much dead in the morning. Compare this to leaving the phone unplugged completely, and I'd generally see 15% battery usage overnight.
The solution is pretty simple - don't leave the phone plugged into this USB socket, but it seems odd.
Any chance someone else can try this?
Is the Zune client on your pc open because my phone will not charge with zune open
but once i exit out of zune on the pc it charges fine...
ive lost my charger and too lazy and cheap to buy a new one so im just using the pc to do it....
no - the PC is actually powered down. However, with soft power switches, the USB port stilll can get power, as proven by my ability to charge my Touch Pro from USB when the PC's off.
I'm not sure what could be causing this, but i will try to see if mine is the same too, then i will post feedback
I've charged mine on a USB port at work, but there isn't any Zune software in the way there... Honestly, I don't sync through USB, so I never noticed this, but at work I have used the USB port on our camera system to charge my phone...
most likely cause is the fact that the computer reduces the amount of current send to the usb port when powered down.
normaly all that is needed is a move of the mouse or a key press to power the computer back on.
now both the keyboard and mouse are low power devices.
now my guess is that the touch pro needs less power in standby then the hd7, and therefore the first will charge and the second will drain.
so to solve this question you need to measure the power comming from the computer in standby (powered on it's 500mA), and both the phones in standby mode.
plopper
Here's what I find odd:
The phone will not charge unless powered on. For example, if I have the phone turned off, and plug it into the wall charger it came with, the phone boots up. It will NOT charge while turned off.
Anyone else notice this?
jimbonics said:
Here's what I find odd:
The phone will not charge unless powered on. For example, if I have the phone turned off, and plug it into the wall charger it came with, the phone boots up. It will NOT charge while turned off.
Anyone else notice this?
Click to expand...
Click to collapse
i saw someone mention that the led won't turn on during charging while the phone is turned off.
sadly he didn't wait long enough to see if the led turns on when the battery is fully charged.
also i have no idea which model he was using.
plopper
I posted earlier about charging issues on the HD7: http://forum.xda-developers.com/showthread.php?t=849548
What I found was that if you have the HD7 plugged into the USB port and then you suspend/shut down the PC, it'll stop charging (while all other phones I've used - iPhones, HD2, etc. - will keep charging).
Once you suspend/shut down, you need to then unplug and replug the HD7, and it should start charging again. Not sure why this happens, but I need to do it every night, otherwise I have a dead phone in the morning.
jimbonics said:
Here's what I find odd:
The phone will not charge unless powered on. For example, if I have the phone turned off, and plug it into the wall charger it came with, the phone boots up. It will NOT charge while turned off.
Anyone else notice this?
Click to expand...
Click to collapse
That is apparently a "feature" of WP7-- the phone will automatically turn on when plugged in.
When I plug in the phone to any computer there is no indication that it has been plugged in. The computer doesn't show that there is a device connected when using usb view.
Comments or solutions greatly appreciated
Try turning off and removing battery for like 30 seconds, same thing happened to me (wouldnt charge or connect to anything)but after I shut it off it worked
Hello there,
Its a but weird but hey this is something very normal for the 2x I think. When I plug in the phone to the pc, this will identify the phone and all that, but it will not charge. I have tried different USB slot and other PCs but nothing happens. On Power the phone will charge as normal. I have also down a calibration of the battery..
Anyone?
I just had the same thing happen to me. I'm glad I read about your wall charger suggestion . Then I read about another person who pulled their battery out and long pressed the power button to clear any risidual charge, I did that and when I turned back on it had gone from 1% to 5%. This was after useing 'battery calibrator' which deletes that file. I also have battery monitor widget and wonder if it conflicts, I think I entered a random number when it asked me the wall chargers ampage. Who knows it charges from computer again. My mother had a problem similar on her nokia, she let the charge get to low and they had to 'shock' the battery into life.
- actually if you have the mode where the screen stays on then the phone might just consume all the power.
-nope, seems wall charger is super fast and computer is slow, maybe usb just doesnt have as many amps
check your usb cable, cheap china cable have problem with charging
I got another cable, GOLD!, and did more testing, its a slow charge on computer and charge goes down when playing counter-strike. Charge goes up on wall socket when playing CS. The charger says it puts out 1A and im sure that more than what my laptop USB puts out, maybe I'll try it with my desktop.. debug mode did nothing to change the effects.
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.