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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.
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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
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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?
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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.
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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 ...
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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?
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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.
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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
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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
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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...
Hi Guy,
First post here. I looked around and could not find a solution to the problem so here we go:
So I have a U8800 X5 which I've rooted and installed Clockwork Mod and the MIUI Custom Rom.
I had been running that set up for about 3 to 4 weeks and it had been going great until recently when it started acting buggy. A few hours ago I used my phone until the battery fell to about 3% and while the phone was still on, I put it on charge.
It said "Charging" but the percentage was not increasing so I went to sleep with the phone still on charge thinking maybe it needed some time.
Now, in my sleep, the phone turned off and it will not turn back on. I have tried plugging it into another socket, charging through my pc, taking the battery out and putting it back in but every time it's the same result:
The 4 buttons at the bottom of the screen light up and the LED next to the speaker flashes red. There is NO activity WHATSOEVER on the screen itself.. I personally don't think it's charging.
Is it my battery? Is it the ROM? Is there a solution? :/
And I believe that the U8800 also works without a battery if the charger is connected (by getting power directly through the Mini-USB Cable).
It refuses to turn on when I take the battery out as well.
the same thing happened to me. it was a problem with the usb cable. i bought a new one and everything works fine again
Well, first of all try to connect it to a computer USB port with a different USB cable. If it still does not charge, then it might be that your batter is dead. OR if you're unlucky then there might be something wrong with your phone (though I don't think that. Most likely it is your battery)
You can try to connect your battery to a separate charger and see if it charges.
I've come across a problem using Rack's dualboot CM9. If the Nook Color's been running and the battery has run down, connecting plugging in the stock cable + charger results in a green light on the cable and the Nook not charging. After playing around for a bit I figured out that if I reboot it or keep the Nook off it will charge fine. If I reboot and charge, however, the battery percent indicator does not update until after I unplug the charger. If I try to charge it again after unplugging, the light stays green and refuses to charge as before, even though the battery is not at 100%.
I wanted to rule out this being a problem with the charger first, and it seems that way to me but my knowledge about the inner workings of the Nook are limited. Any help is appreciated!
I have the same problem yesterday, and I just rebooted and work well now, don't know what's wrong with it.
hello guys
when i charge my nook with nook's charger ..... the charger become too hot till i feel that my usb connector gonna melt ...... i dont know why .... anyone expert in hardware staff???
thx
Do you have another micro-USB charger you can try? The NST doesn't need the official Nook charger. I've been using my phone's charger with no problems for months.
If another charger also heats up, then I'd worry about your Nook. If not, then I'd worry about your Nook charger.
Sun_Cat said:
Do you have another micro-USB charger you can try? The NST doesn't need the official Nook charger. I've been using my phone's charger with no problems for months.
If another charger also heats up, then I'd worry about your Nook. If not, then I'd worry about your Nook charger.
Click to expand...
Click to collapse
can u specific me an charger ,,,,, thx
Any charger with a micro-USB plug will work. Here's a generic one from Amazon.
Any standard micro USB to USB cable will charge your nook device. Most power transformers that have a USB output will work, also - I charge my nook off of whatever's to hand. My memory is that the NST chargers are 1 amp or so, but if they don't have access to that much current, the NST will charge a bit slower.
Also, you can use your computer's USB port to charge a nook touch (or a nook color/tablet, but the latter two will charge very slowly that way)
If there's really a problem with the device, rather than the charger, that might make trouble -it wouldn't be the first thing to recommend since it could make trouble for your USB port or your PC as a whole.
Some warming of those transformers is fairly normal, though - I see it with my phone and with my LCD nooks, moreso when they are mostly discharged before I start charging them.
Something is wrong there. Nothing should be getting hot to the touch.
As previously said, try another charger or a USB cable connected to a computer.
Is your Nook still charging correctly? Does it get to 100%?
You can look at the battery actual voltage a few different ways.
UsbMode can show you, so can this command in ADB:
Code:
am start -n com.android.settings/.BatteryInfo
roustabout said:
Any standard micro USB to USB cable will charge your nook device. Most power transformers that have a USB output will work, also - I charge my nook off of whatever's to hand. My memory is that the NST chargers are 1 amp or so, but if they don't have access to that much current, the NST will charge a bit slower.
Also, you can use your computer's USB port to charge a nook touch (or a nook color/tablet, but the latter two will charge very slowly that way)
If there's really a problem with the device, rather than the charger, that might make trouble -it wouldn't be the first thing to recommend since it could make trouble for your USB port or your PC as a whole.
Some warming of those transformers is fairly normal, though - I see it with my phone and with my LCD nooks, moreso when they are mostly discharged before I start charging them.
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Click to collapse
u r right .... nook charger is about 1 Amp consumption .... also it's charge nook too fast .... between i charge nook from computer it's become too slow also take about 4 hours or more to become 100% , and the thing make me sure that nook charge till the led turn from orange to green
Renate NST said:
Something is wrong there. Nothing should be getting hot to the touch.
As previously said, try another charger or a USB cable connected to a computer.
Is your Nook still charging correctly? Does it get to 100%?
You can look at the battery actual voltage a few different ways.
UsbMode can show you, so can this command in ADB:
Code:
am start -n com.android.settings/.BatteryInfo
Click to expand...
Click to collapse
hello Renate .... ok .... i will use this command after i install ADB on my computer ...... but i wanna ask u what USBMode use for (ur program) .... also i wanna cancel that my nook being seen from my computer as a hdd (host mood) i just wanna put it and charge my nook and enable me use my nook , cuz when i connect my nook to pc u know the message say (USB Mood) that block u use ur nook between charging ur nook
thx all guys
To prevent your Nook from mounting as a Mass Storage Device when you plug it into a PC, do this:
http://forum.xda-developers.com/showpost.php?p=32826229&postcount=2
New to this ROM, is it a normal thing for the nook not to charge while on? I have to power off for the nook to charge up. Any ideas or just a normal side affect of using the ROM? Thanks!
I charge while it is sleeping.. no problem..
whats weird is a usb cable to computer charges it but not the original nook charger, only when I power off the device. I guess its not a huge inconvenience though it would be nice to charge with the wall charger.
corporal_hades said:
whats weird is a usb cable to computer charges it but not the original nook charger, only when I power off the device. I guess its not a huge inconvenience though it would be nice to charge with the wall charger.
Click to expand...
Click to collapse
And using original cable, not just a micro usb cable?
Sent from my Nook HD+ using Tapatalk
yes stock cable and wall plug. It wont charge while nook is on, but as soon as I power off the nook, the cable turns orange and charges just fine. If I power it back up, cable turns green like its all charged. If I use a regular usb cable while its on, it shows charging (USB). I have a new nook charger and cable coming from B&N so will see if that fixes the issue. But this cable was charging stock nook color fine, so I think its something else.
corporal_hades said:
yes stock cable and wall plug. It wont charge while nook is on, but as soon as I power off the nook, the cable turns orange and charges just fine. If I power it back up, cable turns green like its all charged. If I use a regular usb cable while its on, it shows charging (USB). I have a new nook charger and cable coming from B&N so will see if that fixes the issue. But this cable was charging stock nook color fine, so I think its something else.
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Click to collapse
I don't think the replacement is going to fix the problem either.
I have seen this issue with CM10 on EMMC... I THINK my issue is due to multiboot from SD... Here's why... and I will do more investigating...
1. When booted to CM10 light is immediately green and nook shows discharging even when plugged in.
2. When booted to CM7 it works correctly... unless....
3. If I set deault boot to EMMC/Normal... No matter what boot i choose... immediate green light and no charging unless powered off... or sitting at the CyanoBoot menu
4. When attached to USB car charger... both indicate and charge normal.
I will do some more testing and investigation... like changing CM7 and CM10 install locations and performing above tests again and see if can narrow down the cause.
I have an SD card in the nook but its just for storage. So you think its a ROM issue with CM10? I put it on the charger last night and this morning it was at 39%, I just reconnected it and its orange again so I will see what happens.
so I installed the latest CM10 nightly and the nook at the moment is charging while turned on. How often is PA synced with the CM10 nightlies? I will do some more testing to make sure its not a fluke and falsely charging.
now its not charging while powered on LOL. Almost wondering if its the cable since the tip kind of moves a little bit. Powered off it does charge fine though. Weird.
corporal_hades said:
so I installed the latest CM10 nightly and the nook at the moment is charging while turned on. How often is PA synced with the CM10 nightlies? I will do some more testing to make sure its not a fluke and falsely charging.
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Click to collapse
Synced with the day of the build...there is nothing charge related in the PA framework so you should see identical behavior in CM nightlies, all things being equal.
so it must be a CM issue? I suppose I could go back to stock and see if it works there. the latest PA I see is from Nov 21 or am I looking in the wrong place? I just dont know why the thing charges perfectly fine with the device off, but doesnt charge correctly while powered on. I have to plug in a standard microusb cable which charges it while powered on.
It wouldn't be strictly a CM10 issue or others running the same ROM would be seeing the same problem.. I am not..
ok I am awaiting the brand new charger setup from B&N to arrive and will see if that fixes things. I tried CM10 based roms and CM7 based roms and the same thing occurs so it might be a bad cable. CM10 seems more responsive than PA, which I know is based on CM10.
I restored to stock 1.4.3 and the cable is charging just fine while powered on. I am going to redo the rooting and see if maybe I might have missed something on the install.