Problem:
The X will not charge!
Situations:
1) My xbox 360 is plugged in, but off. The Droid X will not charge. Turn on the xbox & the X starts to charge. Turn off the xbox and the X continues to charge...
2) My computer is plugged in, but off. Plug the Droid X in and it will not charge. Turn the computer on, the X starts charging. Turning the computer back off, the X continues to charge...
Idea:
A powered usb port is not enough to charge the X and changing usb modes does nothing. It needs some sort of usb acknowledgment from a computer to start the charging. Thinking about some sort of Force Charge app, though I don't know where to start...
um......are you saying that when you plug your X into a usb port on your Computer or your Xbox, it won't charge when the Devices are turned off?
I don't know of any device that supplies power to a usb port when its off, i.e. power off means usb port off too....
Maybe I'm mising something, but if you were to plug anything like an external hardrive, into your devices they shouldn't recieve power while the device is off.
wesscoggin said:
um......are you saying that when you plug your X into a usb port on your Computer or your Xbox, it won't charge when the Devices are turned off?
I don't know of any device that supplies power to a usb port when its off, i.e. power off means usb port off too....
Maybe I'm mising something, but if you were to plug anything like an external hardrive, into your devices they shouldn't recieve power while the device is off.
Click to expand...
Click to collapse
Plenty of device supply power to ports when they are off. How else are you supposed to use the BIOS features that allow a computer to be turned on using a KB or mouse? Do a Google search for "PC off USB on" you'll find plenty of posts about people complaining there devices stay powered on when they turn there PC off.
Ok, maybe I can explain this a little better....
The xbox 360:
When the device is "off", yet still plugged in, it still draws some power (what they call it phantom power). The usb ports still have power to them, and other parts, such as the wireless radio receiver is still powered, so you can turn it "on" with a wireless controller.
Now if one plugs a Droid X into the 360 in its "off" state, the phone will not charge. Turn the xbox "on", meaning you can play games (or go to the xbox dashboard) and the phone starts to charge. Keeping the phone plugged in and turning the xbox "off", the phone continues to charge. This means that something must initiate a charge and just having a powered usb port, is not enough.
Why the stock charger works, I do not know? It certainly doesn't have a computer in it...
PC:
My pc does the same thing: if the computer is "off" (meaning the motherboard still has power), then the phone will not charge. Turning the pc "on" (which eventually starts windows) is enough to charge the phone. Specifically the phone starts charging as soon as the bios says something along the lines of: initiating usb connections. Then turning the computer back "off", the phone still charges...
Well, I guess that is a cool feature on some devices that I had never heard about.
Forgive my ignorance.
First of all, as techy as I am, I don't claim to know everything about computers; however, the only time I've ever seen a computer able to turn on from the keyboard is if it's hibernating or in standby, never off completely. I built dozens of my own machines and support hundreds within a business environment and have yet to see such a feature built in.
If this is in fact what you are referring to, then the usb power on the ports during this mode is in a low power state (on most machines). These days, some modern boards are now coming with the ability to have full usb power to charge devices while the machine is in standby/hibernate/off.
I just built a machine using a gigabyte board that just came out with this feature in April of this year (http://www.gigabyte.com/microsite/185/on-off-charge.htm), so if you don't have this feature (or similar), it probably won't charge when the machine is off.
SiXiam said:
Ok, maybe I can explain this a little better....
The xbox 360:
When the device is "off", yet still plugged in, it still draws some power (what they call it phantom power). The usb ports still have power to them, and other parts, such as the wireless radio receiver is still powered, so you can turn it "on" with a wireless controller.
Now if one plugs a Droid X into the 360 in its "off" state, the phone will not charge. Turn the xbox "on", meaning you can play games (or go to the xbox dashboard) and the phone starts to charge. Keeping the phone plugged in and turning the xbox "off", the phone continues to charge. This means that something must initiate a charge and just having a powered usb port, is not enough.
Why the stock charger works, I do not know? It certainly doesn't have a computer in it...
PC:
My pc does the same thing: if the computer is "off" (meaning the motherboard still has power), then the phone will not charge. Turning the pc "on" (which eventually starts windows) is enough to charge the phone. Specifically the phone starts charging as soon as the bios says something along the lines of: initiating usb connections. Then turning the computer back "off", the phone still charges...
Click to expand...
Click to collapse
I think you need to check the usb ports on the Xbox with a voltmeter to see if there is 5V there when the xbox is "off". Do the same with your PC. I personally dont think there's output voltage on the usb ports when those devices are off. At least I know the PS3 usb ports are definitely not putting out 5V when its off, same with my PC that has a ASUS mobo.
Some newer motherboards support this feature, as dvation191 pointed out about the Gigabyte board. But even they mention, depending on the device, the system might have to be on first. I'm sure things will get better in the near future too, as in become a part of the standard.
HostileJava said:
Plenty of device supply power to ports when they are off. How else are you supposed to use the BIOS features that allow a computer to be turned on using a KB or mouse?
Click to expand...
Click to collapse
It's the other way around, the port is supplying the power to the device.
When a computer is off, the motherboard still has power, and it basically recognizes that something is plugged in to the port. But it doesn't always mean that there is enough power fed to the USB port to charge a device.
To turn the system on with k/b or mouse, it's basically just looking for a signal that only requires use of minimum voltage, which is being fed to the k/b or mouse from the USB port, it recognizes a specific interruption and system powers on.
This feature has existed even before USB.
Like derek4484 said, checking the USB port with a voltmeter is the way to find out if your not sure if your PC or console supports full USB power when system is in the off state.
The Omnia was like this. If you look at the USB cable where it plugs into the droid x, I will bet it will have different pins than the wall wart...
Maybe you guys are just not understanding what I'm saying, or I am very bad at explaining it.
The ports on my xbox and my pc have enough power to charge the Droid X, even in an "off" state. I don't need a voltmeter because I know it charges the phone. What is wrong is it won't initialize a charge when the device is off. Meaning the device has to be "on" for it to start charging. Then you can turn it "off" and it will continue to charge. Something in the Droid X is not allowing it to charge, without some sort of initializing.
Related
Have had the XDA for nearly 2 weeks now and still getting the hang of all it's features.
I did an initial charge overnight and have since kept it topped up using the PC/USB cable.
As a small security precaution I've got the startup pin number activated so when syncing to PC or resetting the XDA I key in the pin.
This morning when I got to work I just plugged the XDA into the PC USB but got called away to a meeting. When I came back the PC said I had a new usb device and the device had failed, I then noticed the battery level had dropped to 0% (phone on/bluetooth on).
For whatever reason the usb was plugged in but was not charging.
Moral of the story is watch that activesync pops up so you now you have a good connection and that the unit is charging.
Steve
I don't think that all USB sockets are capable of charging the Exec if the screen is on. I.e. they can't provide enough amps to power the Exec and charge the battery.
It helps to reduce the screen brightness if charging is important.
I've taken to using only the mains charger for charging (which never has the same problem) and doing ActiveSync over Bluetooth. I keep the USB lead with me for emergencies only.
I tend to charge it with the screen towards the keybaord and the lid down so the screen is off.
Well it has charged to 100% now, perhaps I'll check the time it takes next time when I leave the phone & bluetooth on (had to turn them off at 0%)!
But to be fair I did not need to reset at all so good old XDA.
Steve
if you press and hold the power button will turn off the backlight, then when your charged press again and hold to turn the backlight back on. should reduce the consumption
If the right hand light goes orange then green when charged, it should be charging.
I advocate the use of a powered USB hub in between your Universal and the PC (ie: don't connect directly to the PC). Plenty of juice available then for charging.
Hi All
When I have my universal plugged into my USB on my Laptop it dosnt chanrge the device until I switch the screen off is this normal ?
Is there a setting ?
Thanks
Steve
I have the same with USB cables and several chargers (wall and car) I think it depends on the wiring.
Mostly the MDA start charging after a few seconds even if the screen is on though.
Suspect your laptop can't supply enough power through the USB port to power the screen & charge the battery.
You might want to try reducing the screen brightness to minimum to see if that leaves enough spare power to charge the battery.
Mike
It's normal. The laptops suply 0.5A but your charger suply 1A. So you sould keep screen off, or BT and Wifi off if you want your pda increases the battery level instead of decreasing......
Well as I experience the problem it is not a problem of too much load. If I switch the screen back on after it starts charging it works fine still.
sure. Because the screen on eats much power
and it doesn't when you switch it on later?
Let's se. If you turn off the screen using some program (not the pda, only the screen) the energy consumption will be less so your pda will charge. BUT if you let the screen ON the pda will spend more energy than the received by the laptop so the battery level will decrease......
I doubt that is what he is referring too. I assume he's talking about the orange led. That does sometimes not come on when the screen is on, but if you swith it off it comes on and then you can switch the screen back on and charging works fine.
I really doubt that the MDA uses more power than USB can supply. You'd have to have a lot of other devices connected to the same port/hub and seeing how this is on a notebook ...
Probably does not check power requirements all the time so you may get into a position where it can charge & have the back light on.
So one of two things will happen depending on how well you laptop was designed.
1) It will take a very long time to charge while the display is on.
2) Damage the USB power supply as the PDA will take more than the USB port can supply without damaging it.
Mike
Of course I'm not the thread starter, but what I have experienced is that it's not about the speed of charging just that the led needs to go orange and that it will not do so when the screen is on (or with a delay)
So in the end the real problem is that charging does not start when the orange led is not on (as the device remains switched on). Not that it takes longer when the screen is on. Simply that there will be no charging at all.
I have ended up with an empty battery because of this myself a few times. If I remember to switch off the device when it's hooked up then it charges fine if I switch it back on.
I have also had the same problem from a 1A wall charger. So it's not just a matter of power being available. It has to be something with wiring or signals from the charge cable too.
I'll try to see what the difference is between chargers that do work immediately and ones that only work after you switch off the device.
Some USB ports may also be designed to supply power (or a bit more umph!) to external devices. For example, one of my laptops has two USB ports; a normal one and one with a "plus" symbol designed for powering devices like floppy, or USB hard disc drives.
patrickl said:
Of course I'm not the thread starter, but what I have experienced is that it's not about the speed of charging just that the led needs to go orange and that it will not do so when the screen is on (or with a delay)
So in the end the real problem is that charging does not start when the orange led is not on (as the device remains switched on). Not that it takes longer when the screen is on. Simply that there will be no charging at all.
I have ended up with an empty battery because of this myself a few times. If I remember to switch off the device when it's hooked up then it charges fine if I switch it back on.
I have also had the same problem from a 1A wall charger. So it's not just a matter of power being available. It has to be something with wiring or signals from the charge cable too.
I'll try to see what the difference is between chargers that do work immediately and ones that only work after you switch off the device.
Click to expand...
Click to collapse
Completely agreed. I have exactly te same situation, whether I use the computer's USB power or a 1A wall charger. I have tried various cables with to no avail. If I want the device to charge, I must:
1. Turn off the Universal by pushing the power button,
2. Then feed the electricity,
3. Then the orange light comes on, and it is charging,
4. Then I can do whatever I want with the device as it charges.
When my Universal was new, it did not have this issue, so I do not know if a firmware update, a reset, or some third-party software caused this to happen.
My understanding is that the display backlight uses most of the power I can get a decent charge by just closing the lid rather than using the off button.
Mike
Mikew said:
My understanding is that the display backlight uses most of the power I can get a decent charge by just closing the lid rather than using the off button.
Mike
Click to expand...
Click to collapse
My battery was down to about 38%, charging via USB (Lid closed) charged upto about 83% after about 3hours - Not quick but good in an emergency.
Matt
Got a bit of a weird update here...
Normally, my unit does the same as above...wont charge if display is on, removing cable, closing lid/turning off then applying charge resolves issue.
Now, I used to try the charge cable first, if it didnt work, unplug, close lid, apply charge again.
Past few days, I have been inserting the charge cable in and pressing power (lid still up)...at this point it doesnt charge (does if you close lid instead of pressing power), but if i now close lid and re-open lid, the screen comes on and so does the charge..at the same time ?!?!?! :shock: :shock:
I have tried this process and left lid closed for few mins before opening it, but the charge starts when the lid is opened not closed.
And also, if you get unit charging, then remove charge, you can apply charge again in any power state (within 3 mins) and unit will charge instantly?!?!? After 3 mins you have to mess about with power and lid...
So, is the charge linked to the lid closing, or linked to a change of status of the units power??? :roll:
EDIT: ahh haaaa...the 3 min thing was cos my power down timeout was 3 mins :wink: so I did some testing;
1. lid up, screen on, backlight on - insert cable (no charge), press power (no charge), close lid (no charge), open lid (charge)
2. lid up, screen on, backlight off - insert cable (no charge), press power (no charge), close lid (charge)
3. lid up, screen off (from timeout, not power button) - insert cable (no charge), close lid (charge)
4. lid up, screen off (from power button) - insert cable (no charge), press power (no charge), close lid (charge)
......helpppppppppppppppppppppppp :shock:
Ha, ha, I guess these machines are becoming so complex that they start to become really "alive"
QuaCKeReD said:
Got a bit of a weird update here...
Click to expand...
Click to collapse
how many secs elapse before you close lid in these experiments? it is normal to wait a couple of seconds before the charge led comes on.. sorry if this was too obvious!
other ideas: the contact is not good, and when you move the unit it could get better.
do you use the usb sync cable to charge or wall charger? i use the latter. supposed to be much better.
cmonex said:
QuaCKeReD said:
Got a bit of a weird update here...
Click to expand...
Click to collapse
how many secs elapse before you close lid in these experiments? it is normal to wait a couple of seconds before the charge led comes on.. sorry if this was too obvious!
other ideas: the contact is not good, and when you move the unit it could get better.
do you use the usb sync cable to charge or wall charger? i use the latter. supposed to be much better.
Click to expand...
Click to collapse
I have tried these test with USB from laptop, USB from PC, USB from powered HUB, Wall charger and Car Charger...all same results. And I did wait for several seconds before closing the lid, in the vain hope that it would start charging...sighhhhhhhhh.
Only difference I have noted...and this may point to a possible app to fix it...if you use USB cable from PC/Laptop with ActivSync installed, it starts charging more reliably ?!?!? Kinda points to this being a polling problem within the units software ie: activsync connection sends a request which prompts device to check port status, sees power and starts charging...whereas a connection with only power doesnt force a poll. Problem here is, laptop/PC direct connect (as opposed to a hub connection which can cause some problems) is only 500mA power...wall charger is 1A...so charging time on a USB connection is VERY slow.
Anyone know of an application (or can write one) to change polling frequency on device??? Or maybe there is a registry setting that covers this?
*prays on knees* :lol:
You have the problem with the standard MDA Pro charger too? Or do you have another wall charger?
Between the different chargers that I have I see great variation in the time they take to start charging. Some start immediately, some will take a few seconds and some will never start if the device is on (or screen is open) Each charger behaves quite similar every time though.
In my case I doubt software would help much. I actually have 2 MDA pros ( (it fell and the screen broke so I got a new one) They each have a different rom and I think the behavior between them is similar. Although I don't recall ever having the MDA pro mot charge in my car as it did with my old machine.
I'm still guessing there is a difference in a signal line somewhere that the MDA pro detects the charge quicker.
Is there a connection between the hardware and the software?
My hermes (as weird as this may sound) has this problem where. if I put my charger in, and slightly move it around, it will no longer charge and pulling the charger out and back in does NOTHING
If i connect my phone to my PC via USB.. it will work, but if i want to connect it back to the regular wall charger, it won't charge until I completely shut the phone off, then turn it back on.
However, with my phone turned off... whether it's on the USB connection to PC or wall charger, i can jiggle the wire and do all sorrts of stuff and the orange charge light will stay on...
anyone know what this means?
I don't know but I'm having the same problem.
This morning I almost got a shock because my X1 stayed black and seemed to be totally dead. Luckily I soon figured out that the Battery was empty, no currrent left on it to let the device even blink. But what happened? When I went to bed yesterday I connected it to the USB cable and left it charging! Everything seemed the same as all the times before. What may have caused this?
Only things that were diffrent from my usual charging procedure:
The Cable were connected to the PC USB Slot.
I shut the PC (laptop in this case) down but the USB Slots had still power. The charging lights of my X1 followed their normal pattern.
Normally I unplug the power cable from PC to prevent the USB Slots to have power. Because my USB harddisk keeps rotating while having power from the USB.
Normally I charge the X1 directly from the power outlet. X1 turned off.
So this time PC was off. X1 was off. USB Slots still got power. X1 connected with USB Slot. X1 seemed to charge normally.
Well, the result was that my X1's Battery was totally empty the next morning. Obviously instead of charging the USB slot drained of the whole battery power! But note that the charging lights were active as normal and the Battery was still warm in the morning.
Perhaps this helps others to prevent such issues.
you are crazy if you:
1. charges from laptop
2. from powered OFF device
you can repeat this case endless - xperia will be drained
Dadaism said:
This morning I almost got a shock because my X1 stayed black and seemed to be totally dead. Luckily I soon figured out that the Battery was empty, no currrent left on it to let the device even blink. But what happened? When I went to bed yesterday I connected it to the USB cable and left it charging! Everything seemed the same as all the times before. What may have caused this?
Only things that were diffrent from my usual charging procedure:
The Cable were connected to the PC USB Slot.
I shut the PC (laptop in this case) down but the USB Slots had still power. The charging lights of my X1 followed their normal pattern.
Normally I unplug the power cable from PC to prevent the USB Slots to have power. Because my USB harddisk keeps rotating while having power from the USB.
Normally I charge the X1 directly from the power outlet. X1 turned off.
So this time PC was off. X1 was off. USB Slots still got power. X1 connected with USB Slot. X1 seemed to charge normally.
Well, the result was that my X1's Battery was totally empty the next morning. Obviously instead of charging the USB slot drained of the whole battery power! But note that the charging lights were active as normal and the Battery was still warm in the morning.
Perhaps this helps others to prevent such issues.
Click to expand...
Click to collapse
Don't charge it in standby mode, how stupid is that?
What? I don't see any reason not to charge it from a laptop. Even if it's powered off, as long as the USB ports have power (mine has a BIOS setting for this) there is nothing wrong with that.
Also, what does it matter if you're charging the phone powered off or powered on?
On an interesting note, however, the same thing actually happened to me last night.
I plugged the phone into the wall socket to charge it (battery was at about 20%) and I actually saw the battery percentage rise as I was still using the phone. I turned it on in the morning (from standby, not powered off), and as soon as I pulled the power cable it went dead as the battery was completely empty.
I have no idea what might have caused this, and it hasn't happened to me before.
Next time dont power off ur X1,
if same happends then your battery is suffed.
Ethermind said:
1. charges from laptop
2. from powered OFF device
Click to expand...
Click to collapse
1) This was accidently
2) Why? I dont like it when mobile phones are on standby while I'm asleep. Charging the device when powerd off should make absolute no difference? Worked everytime but the one where it was connected to a powered of laptop.
Why will the Xperia been drained?
poetryrocksalot said:
Don't charge it in standby mode, how stupid is that?
Click to expand...
Click to collapse
Do you mean standby or powered off? Why should it make any difference? And why does the battery getting drained?
Jasand said:
Next time dont power off ur X1,
if same happends then your battery is suffed.
Click to expand...
Click to collapse
My Battery is quite healthy. *lucky*
jjm34 said:
What? I don't see any reason not to charge it from a laptop. Even if it's powered off, as long as the USB ports have power (mine has a BIOS setting for this) there is nothing wrong with that.
Also, what does it matter if you're charging the phone powered off or powered on?
On an interesting note, however, the same thing actually happened to me last night.
I plugged the phone into the wall socket to charge it (battery was at about 20%) and I actually saw the battery percentage rise as I was still using the phone. I turned it on in the morning (from standby, not powered off), and as soon as I pulled the power cable it went dead as the battery was completely empty.
I have no idea what might have caused this, and it hasn't happened to me before.
Click to expand...
Click to collapse
What does this BIOS setting say? I assume that my USB slots had too less power when laptop is off. But its very strange that your Device got drained while connected to the wall socket and in Standby mode. Maybe my USB slots were not the cause? Weird ...
Dadaism said:
What does this BIOS setting say? I assume that my USB slots had too less power when laptop is off. But its very strange that your Device got drained while connected to the wall socket and in Standby mode. Maybe my USB slots were not the cause? Weird ...
Click to expand...
Click to collapse
It is weird. Since your phone was off I don't think it would use any of its battery power.
I have a ThinkPad, and IIRC the BIOS setting is something like "Always On USB", in the USB settings. With this turned on the laptop will power its USB ports even when turned off, as long as the laptop itself has the power cable connected.
Dadaism said:
2) Why? I dont like it when mobile phones are on standby while I'm asleep. Charging the device when powerd off should make absolute no difference? Worked everytime but the one where it was connected to a powered of laptop.
Why will the Xperia been drained?
Click to expand...
Click to collapse
from powered off PC, when power on usb enough to wakeup PC or feed LEDs,
but not to charge another device. in that case power go into the weaker side, means from x1 -> pc
I had this problem too... seems after hard resetting my phone one time, one option was different to normal after I hard reset,
Click on the battery icon at the top of the screen
Theres a tick box, that says:
"When device is turned on, do not charge the battery when connected to the PC."
this was ticked for some reason. Unticked it, and all was fine.
Try it
I noticed this happened to me too for the first time, after i put in the wall charger and the the phone seemed to charge, i found it completely dead after 3 hours and the battery was warm, running a vanilla R1A
Battery
Also I think for the X1 to charge- it requires activesync. from my experience, when connected to the pc- without activesync, the X1 would indicate charging- but never actually gets charges. Hence when your notebook is off, activesync obviously wouldn't be running-> no charge either.
chinkyeyed09 said:
Also I think for the X1 to charge- it requires activesync. from my experience, when connected to the pc- without activesync, the X1 would indicate charging- but never actually gets charges. Hence when your notebook is off, activesync obviously wouldn't be running-> no charge either.
Click to expand...
Click to collapse
I assume a turned off PC would only power its USB port power pins and wouldn't respond to any transmissions on the data pins. So to the phone it should look just the same as if it were connected to the wall charger (just probably with a bit less power).
Also, when I have my phone connected to my laptop through USB Internet Sharing it does actually charge (it doesn't connect to ActiveSync when using Internet Sharing).
The device should charge in any USB mode as the USB port's power pins supply power regardless of the protocol used on the data interface.
Does the X1 have no safety feature that does prevent the battery from being drained?
In my case I assumed it happened because of the USB Port had too less power. But when you turn off your PC (+USB power) and let the X1 connected it would still mean a movement of current from the X1 Battery --> inside the PC as long as they are not on the same potential. If the PC is earthed somewhere (for example connected to the wall socket) the Battery would be drained out totally! They never get to the same potential as long the Battery has power.
As jjm34 mentioned, if the PC is on and USB slots powered normally the X1 should charge in any case.
Maybe this is not the real cause of the problem. People are reporting that the X1 got drained while connected to the wall charger! That's really weird. How can the battery being drained by this? Any suggestions @Ethermind ?
jjm34 said:
I plugged the phone into the wall socket to charge it (battery was at about 20%) and I actually saw the battery percentage rise as I was still using the phone. I turned it on in the morning (from standby, not powered off), and as soon as I pulled the power cable it went dead as the battery was completely empty
Click to expand...
Click to collapse
viperhead said:
I noticed this happened to me too for the first time, after i put in the wall charger and the the phone seemed to charge, i found it completely dead after 3 hours and the battery was warm, running a vanilla R1A
Click to expand...
Click to collapse
It could be:
It's drawing power FROM your x1 to provide power for laptop internal components.
Dadaism said:
...............
Maybe this is not the real cause of the problem. People are reporting that the X1 got drained while connected to the wall charger! That's really weird. How can the battery being drained by this? Any suggestions @Ethermind ?
Click to expand...
Click to collapse
Mine has. Put it on the wall charger and the charging symbol is there. It reaches 100%, the charging symbol disappears and it shows 100. Then in the morning it's at 90% even though it was still on the wall charger.
I've not left it plugged into a 'running' pc or laptop long enough to see if the phone runs off the battery after it's reached 100%, but it shows the same symptoms. Charging symbol until 100%, then it changes to 100%, no more charging symbol.
Even MSVC stops reporting '% & charging', just reports the % level once it's reached 100%.
I made 2 observations :
It seems the X1 need usb data pins active to charge the battery. The wall plug has something enabled to give power to the data pins (by the way, the wall plug can charge an iPod or an iPhone, it works perfectly). I tried using a cheap wall plug bought in china, no way to charge the X1 or my iPod as there was no power on the data pins. So when connected to an off PC, I'm not sure what's happening. If someone can give a try to analyze this with a multimeter, that would be nice.
It seems also the X1 stop charging after going to 100 %, and won't charge anymore unless you unplug - replug it.
Thanks for your contribution.
Maybe there exists a real hardware failure.
Normally the X1 should charge until the Battery reaches the 100% level. Then there has to be a switch that prevents the Battery from getting overloaded which is good. So charging stops.
The switch blocks charging until you unplug the device once it has reached the full battery level. Thats ok, too. You should not loose much Battery after a full charge and with a device on standby or powered off. And it prevents the Battery getting reloaded at high percentages. Otherwise it would start charging at 99% and stop again at 100 and so on, all the time.
But now assume the switch has sometimes, somehow a failure.
Instead of preventing current to get inside the battery it enables that current can flow into the wall charger.
I do not expect that the current flows into the power outlet. Maybe it gets "lost" in the current transformer that you've plugged into the power outlet (Thats the one you plugged the USB cable in.). Lost means it simply gets warm / hot.
Measuring the current with a Multimeter would be a nice proof. If someone has the technical knowledge and qualification to disassemble the current transformer and the USB cable, you have the go .
I haven't tested it, but I doubt the current flows back into the charger, or back into the USB port on a laptop / pc.
But how does the Battery discharge then? When there is no current flowing out it will stay loaded. (it goes like d(q)/dt+div(j)=0 )
Did you all charge your phone while it is on (standby)? I noticed the same problem when I charged my x1 while it is standby. When I pull the plug from my laptop (I used my laptop for charging, laptop powered on), I get 90% battery life. It seems like there is a switch to cut out the power input if the battery reaches 100% and power the phone from the battery.
Try to charge your phone while it is off. I did it yesterday, and it had stopped charging even before I unplug it from wall output, and I got 100% battery life.
Btw, this is not confirmed yet... it is just based on my experience...
Totally stock (but i don't think it matters).
Plug the phone in, orange LED comes on.
Hold it or place in on the counter five seconds later, LED is off.
Had the phone since 6/4.
Anyone else having issues?
Are you using the AC charger ? I have two Evos and one of the chargers does what you are describing. The orange LED comes on and then goes off after a while and the phone stops charging. Does it on both phones, the other charger works fine with both usb cables.
Are you using the USB charger with a computer or laptop or plugging straight into the wall with an AC charger?
This does make a difference because if you are charging with a USB + laptop combination you could be suffering from the computer going to sleep and disabling the USB ports power to conserve laptop battery life. If you are having the issue when plugging into the wall, try plugging into a computer and selecting the "Charge Only" option when your USB debug comes up. Once it does this, allow it to charge for a period of time and then turn the phone off, switch to AC power plug and see what happens.
Perhaps you had some kind of over voltage spike on the charger through the AC plug. I could see it possibly tripping something in the phone to stop taking charge to protect the handset.
Also make sure if you do use a laptop, use a USB 2.0 or better port. More power and faster connection. Gotta love it.
Your charger may not be sourcing enough current anymore (for whatever reason). I have seen the exact same behavior with USB car chargers that were only sourcing 100-150mA.
Have you tried plugging the USB cable into a modern desktop PC? (Some laptops have reduced current ports, so a desktop is a safer bet)
Its definitely a current issue. I tried to charge my phone using my bluetooth headset's wall charger, but I got the behavior you are describing. The bluetooth headset's charger just doesnt put out enough current.
Are you using the charger that came with the phone? if so, you may want to exchange the charger...
im having the same problem when i connect it to my desktop, it sees it for about 2 secs n then disappears. My computer at work has no problem seeing the phone. i wonder if i need a driver or something for my usb ports, anyone have any ideas??
tarheelsmj12001 said:
im having the same problem when i connect it to my desktop, it sees it for about 2 secs n then disappears. My computer at work has no problem seeing the phone. i wonder if i need a driver or something for my usb ports, anyone have any ideas??
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Probably not a driver issue, but that that rail from the power supply is either undervolted (say 4.6V instead of 5V), or can't provide enough current (amperage) or both. If I recall correctly, the Evo needs 5V @ 1A (+/- 3% tolerance).
Phone not charging
my phone has been charging fine since I got it... even been using the night desk clock app while sleeping at night for the alarm with it plugged in... everything was good...
With my phone about to die today, I plug it in to the wall charger, the led/batter indicator shows that it is charging... then POW.. it says I have a low battery and it needs to be plugged in... WTH??? it is plugged in!
The only thing I did today was flash the new boot.img for the cap fix over in Toast's thread...
Weird thing now is that I took my hero battery and put it in my EVO, plugged it into wall charger, and it stays charging... So, I put my EVO battery in my hero, plugged it in, and whola... it's now charging...
Please help as I am baffled.
MILH0U5E said:
The only thing I did today was flash the new boot.img for the cap fix over in Toast's thread...
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that's your problem right there. that custom kernel is known to have charging issues.
I'm having the same issue with my car charger consistently. Plus my AC charger less consistently. For example, I'll go to bed and plug it in, the next morning I wake up and see the phone is at 80% charge and isn't charging. At some point over night, it gave up. This is with the stock charger too.