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Hey guys, was using my SII a few hours ago, and I put it down at ~48% battery life. I had it charging off the USB of my PC. I don't have Samsung Kies installed, or anything. I was purely just charging it, on stock rom/bootloaders/no-root.
I went to pick up my phone a few minutes after, and all the sudden the phone won't turn on anymore.
I've tried pulling the battery, I've tried letting it run through any power still in the circuits, by having the battery out for 30+ minutes. I tried the "pull out battery, hold power for 10 seconds, then pop battery back in," to no avail. I've tried download mode, I've tried using my old Captivate jig.. It doesn't seem to be responding if I plug it in(no heat.)
Any ideas? Going to bring it back to the AT&T store tomorrow to try and get a new one.. I really hope they don't give me any ****. -_-;
Update:
I went to the AT&T store today since they just got a new batch in. Unfortunately, my faulty phone actually wasn't a problem with the phone.. It was a problem with the battery.
Somehow, the battery shorted out the entire phone, and killed it. The reason why I suspect this, is that I asked for the old battery in the new phone they were giving me. Sure enough. That phone is now a brick, also..
Thankfully, they were nice enough to give me a different one and not shove the newly dead one down my throat..
So.. Not quite sure how that happens, but sure enough.. That battery is a Galaxy killer.
Milkshakes00 said:
Hey guys, was using my SII a few hours ago, and I put it down at ~48% battery life. I had it charging off the USB of my PC. I don't have Samsung Kies installed, or anything. I was purely just charging it, on stock rom/bootloaders/no-root.
I went to pick up my phone a few minutes after, and all the sudden the phone won't turn on anymore.
I've tried pulling the battery, I've tried letting it run through any power still in the circuits, by having the battery out for 30+ minutes. I tried the "pull out battery, hold power for 10 seconds, then pop battery back in," to no avail. I've tried download mode, I've tried using my old Captivate jig.. It doesn't seem to be responding if I plug it in(no heat.)
Any ideas? Going to bring it back to the AT&T store tomorrow to try and get a new one.. I really hope they don't give me any ****. -_-;
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Click to collapse
You got a dud piece of hardware. Shouldn't have any problem exchanging it.
Sent from my GT-P7510 using Tapatalk
The only thing you didn't mention is using the stock charger to charge the battery for an hour or so. Did you try that? It could be a dead battery. And once the battery is critically low, your PC can't supply enough juice to charge the battery.
Sent from my SAMSUNG-SGH-I777 using XDA App
Yes, the USB charging mode on the computer sucks. Its easy to draw a deficit of power running off the computer. I had 8 percent and plugged in via USB and within a minute. Or two it was almost dead, fell to 1% in literally 5 mins. It was almost like it was pulling power FROM. The phone
The stock wall charger is 700ma IIRC. Most PCs can output only 500ma max (USB 1.0/2.0 standard). The 700ma is needed when battery level is really low. So, don't leave home without the wall charger.
I tried plugging the phone into the wall charger, to no avail.
Won't even show the charging screen, or get warm.
Bah! Hopefully the AT&T store will have new ones in stock tomorrow.
Bump.
I went to the AT&T store today since they just got a new batch in. Unfortunately, my faulty phone actually wasn't a problem with the phone.. It was a problem with the battery.
Somehow, the battery shorted out the entire phone, and killed it. The reason why I suspect this, is that I asked for the old battery in the new phone they were giving me. Sure enough. That phone is now a brick, also..
Thankfully, they were nice enough to give me a different one and not shove the newly dead one down my throat..
So.. Not quite sure how that happens, but sure enough.. That battery is a Galaxy killer.
Milkshakes00 said:
Bump.
I went to the AT&T store today since they just got a new batch in. Unfortunately, my faulty phone actually wasn't a problem with the phone.. It was a problem with the battery.
Somehow, the battery shorted out the entire phone, and killed it. The reason why I suspect this, is that I asked for the old battery in the new phone they were giving me. Sure enough. That phone is now a brick, also..
Thankfully, they were nice enough to give me a different one and not shove the newly dead one down my throat..
So.. Not quite sure how that happens, but sure enough.. That battery is a Galaxy killer.
Click to expand...
Click to collapse
That's surprising - did they confirm that the phones remained dead even with a "good" battery in?
The charger chip in our phones (MAX8922) has plenty of short-circuit protection mechanisms. (Battery prequalification mode limits current to 90 mA at extremely low batt voltage, and it also has temperature limiting.) So a shorted battery shouldn't have been able to damage the phone.
Highly technical reading material - http://datasheets.maxim-ic.com/en/ds/MAX8922L.pdf
Entropy512 said:
That's surprising - did they confirm that the phones remained dead even with a "good" battery in?
The charger chip in our phones (MAX8922) has plenty of short-circuit protection mechanisms. (Battery prequalification mode limits current to 90 mA at extremely low batt voltage, and it also has temperature limiting.) So a shorted battery shouldn't have been able to damage the phone.
Highly technical reading material - http://datasheets.maxim-ic.com/en/ds/MAX8922L.pdf
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Click to collapse
Indeed, we tried swapping the "new" battery into it. Both of the phones were gone. I never even thought it was probable. Maybe it was just a bad batch? Who knows.
Either way! New phone smell, is great. =P
Hey guys, it's been awhile since I asked a question, but here I am, lol.
In a nutshell, I'm pretty sure something in my device (hardware) is fried, but I thought I'd see if anyone knows better.
The problem is my device seems to be sending power out of the usb port, and doesn't connect to the pc or recognize it is charging correctly.
This also applies to download mode (windows says device has malfunctioned) and when powered off (there is no battery that shows up when plugged in). In order to power back on after turning it off, I have to remove the battery, then reinsert it while holding down the power. I can't think of much that could have caused this, other than I was visiting places with high humidity levels. One unusual thing that happened before this started was my device rebooted into safe mode when playing bad piggies. That was really weird since I have tried booting into safe mode before, but thought samsung must have disabled it for some reason. I have already tried wiping data and flashing a new kernel/rom. Obviously I can't re-partition since I can't connect to my computer in download mode. What do you guys think? I think it is time for a new device.
EDIT: I should mention that it started behaving normally yesterday for about 5 minutes, but then it went back to this.
iJimaniac said:
...
In a nutshell, I'm pretty sure something in my device (hardware) is fried, but I thought I'd see if anyone knows better.
The problem is my device seems to be sending power out of the usb port...
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Click to collapse
I'm 99.9% sure that under normal conditions that an Android device should never power the USB port. Source of speculation. If it is indeed powering the USB, then you've either got a really wonky firmware installed, or some sort of hardware issue. I'd try to make sure that it's sending power out before going further (especially if you can't charge it, the battery will be dead soon). After this test, I'd keep the battery out for a while, just to be sure it's not going to short anything.
One thing I've noticed in my tinkering is that taking a device apart, then putting it back together again can mysteriously fix problems (although 75% of the time the fix is temporary). If you suspect water damage, opening it up and letting it air out might help. I want to say there are certain cleaners that are great for cleaning up any water spots that might be shorting things out, but I've never had to try myself.
That's all I can think of right off. Good luck.
Dr. Cyanide said:
I'm 99.9% sure that under normal conditions that an Android device should never power the USB port. Source of speculation. If it is indeed powering the USB, then you've either got a really wonky firmware installed, or some sort of hardware issue. I'd try to make sure that it's sending power out before going further (especially if you can't charge it, the battery will be dead soon). After this test, I'd keep the battery out for a while, just to be sure it's not going to short anything.
One thing I've noticed in my tinkering is that taking a device apart, then putting it back together again can mysteriously fix problems (although 75% of the time the fix is temporary). If you suspect water damage, opening it up and letting it air out might help. I want to say there are certain cleaners that are great for cleaning up any water spots that might be shorting things out, but I've never had to try myself.
That's all I can think of right off. Good luck.
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Click to collapse
Yeah, I'm working on taking it apart right now. With my limited experience on electronics, I would be willing to bet it's a capacitor that's gone bad somewhere. That wouldn't be a problem on a desktop since I could just solder a new one in, but I don't think I have the skill to do something in such a small scale, not to mention I don't think you can even buy them that small.
The same thing happened to me, and I had to send it in for repair. Luckily, I was still in warranty. Also, are you sure it's not the charger cord?
TheKryptonite said:
The same thing happened to me, and I had to send it in for repair. Luckily, I was still in warranty. Also, are you sure it's not the charger cord?
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I've tried multiple cables, and I'm unfortunately out of warranty.
Upon disassembling and cleaning with rubbing alcohol, it seemed to be working properly, with the exception of computer connection. However, I plugged it into a DC car charger (leaving the charger itself unplugged from an outlet), and the light came on again (which is what I was talking about when I said it was sending power out), and now it is acting weird again. I guess I'll take it apart and clean it again...
iJimaniac said:
I've tried multiple cables, and I'm unfortunately out of warranty.
Upon disassembling and cleaning with rubbing alcohol, it seemed to be working properly, with the exception of computer connection. However, I plugged it into a DC car charger (leaving the charger itself unplugged from an outlet), and the light came on again (which is what I was talking about when I said it was sending power out), and now it is acting weird again. I guess I'll take it apart and clean it again...
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Click to collapse
honestly, i cannot begin to fathom what could be causing this. it seems to me samsing paid more attention to the charging port then say amazon did on the first gen kindle.
i do however, wish you the best of luck and hope you somehow manage to fix it
iJimaniac said:
I've tried multiple cables, and I'm unfortunately out of warranty.
Upon disassembling and cleaning with rubbing alcohol, it seemed to be working properly, with the exception of computer connection. However, I plugged it into a DC car charger (leaving the charger itself unplugged from an outlet), and the light came on again (which is what I was talking about when I said it was sending power out), and now it is acting weird again. I guess I'll take it apart and clean it again...
Click to expand...
Click to collapse
See! Told you taking it apart and putting it back together again works... temporarily. :silly:
You're right, that does sound like power going out. Which would be super cool for powering, say, a micro USB laser pointer, but it's not so great when it should be charging. Can you double check with another device that the charger doesn't light up normally? I know my wife's laptop charger has a LED that stays on for a long time after it's been unplugged from the wall, sipping off of power left in the charger. It could be something similar with your charger.
Just a though... if power is only suppose to go into the device, then wouldn't it be reasonable to assume to that there would be a diode forcing power to only go one way? Or does it need to cycle power back to the charger? IDK, but it might be worth looking to see if something looks missing.
I read somewhere that if the battery voltage gets too low i.e. battery is totally flat, a current will flow from the device to the charger so this may be what's going on here. I didn't really understand the post as I was just whizzing through the thread, but i think the solution was to charge the device for many hours until the battery voltage was high enough for normal charging to occur. I'll try and locate the post, but it might take a while
Sent from my Nexus 7 using XDA Premium HD app
@iJimaniac if all of these suggestions dont work, there is the possibility to just buy another battery and a battery charger and keep switching out the batteries when they die
Maybe @henk5066 would know something about this?
From what it sounds like, your power circuit is fried and is not directing power correctly this means that you're probably going to have to replace the mainboard. however don't worry. you can get one from a player with a broken screen on ebay for about 10 $. I can p.m. you some links to products on eBay with main board working and not screen and I can post a video on YouTube that shows you how to replace the board. it's actually rather quite easy. I don't get why most people don't do that and instead buy a new one. let me know if that helps
Sent from my YP-G1 using xda app-developers app
henk5066 said:
From what it sounds like, your power circuit is fried and is not directing power correctly this means that you're probably going to have to replace the mainboard. however don't worry. you can get one from a player with a broken screen on ebay for about 10 $. I can p.m. you some links to products on eBay with main board working and not screen and I can post a video on YouTube that shows you how to replace the board. it's actually rather quite easy. I don't get why most people don't do that and instead buy a new one. let me know if that helps
Sent from my YP-G1 using xda app-developers app
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Click to collapse
Wow, I didn't realize a broken player is so cheap. I'll look into it, and instructions won't be needed; I've already fully dissasembled my device many times in the past, just for kicks.
Edit: could you send me those links? I'm having a hard time finding very many under $25, which is still a good price I suppose.
the broken player it's self is cheap (0.99$ if your lowest bidder and win) it is shipping that makes up for most of the cost. Just make sure you get one that says powers on, that is the main indicator that the main board is still good.
EDIT: I just looked on ebay, aparantly the person i bought my new board is out of the 4.0 player. and it looks like there is however one with a 9.99$ bid. you could raise it and get the player but that is the cheapest you will get. i will pm you a link to it.
I had the same problem
I had the same problem, what i did was, instead of charging it with the original charger, i charged it with my nexus 10 charger in download mode all through the night, and the next day it would have about 80 percent charge and it was in the system, but it drained quick when i would unplugged it, so i repeat the same procedure over several days until get to 100% and scince then i have had no problems with my SGP, hopefully i helped you
Hell.Knight said:
I had the same problem, what i did was, instead of charging it with the original charger, i charged it with my nexus 10 charger in download mode all through the night, and the next day it would have about 80 percent charge and it was in the system, but it drained quick when i would unplugged it, so i repeat the same procedure over several days until get to 100% and scince then i have had no problems with my SGP, hopefully i helped you
Click to expand...
Click to collapse
Interesting, i thought the devices could not charge in download mode.
On the subject of odd charging behavieor, has anyone noticed that when plugged in running cyanogenmod overclocked to 1200mhz, the micro usb port area on the player gets rather hot?
henk5066 said:
Interesting, i thought the devices could not charge in download mode.
On the subject of odd charging behavieor, has anyone noticed that when plugged in running cyanogenmod overclocked to 1200mhz, the micro usb port area on the player gets rather hot?
Click to expand...
Click to collapse
I haven't noticed excessive heat in that area.
Sent from my YP-G1 using Tapatalk 4 Beta
Walking out of work yesterday, I swapped my dying battery for my freshly charged one, and powered up the phone. I see the Samsung logo pop up, and then the CyanogenMod wheel start spinning, so I slip it in my pocket. I pull it out a couple of minutes later to check something, and the screen is black. I press the power button a few more times, and the Samsung logo shows up again. Apparently my phone was off. So I wait on it to boot up, but it never leaves the Samsung logo. It sits, and sits, and sits...for a good 30-45 seconds, it sits on that screen. And then it goes black. I try again, but nothing happens. I switch back to the dying-but-not-dead battery, still nothing. I leave it to sit on the seat of the car with no battery for the drive home, and try again. Nothing. I leave it to sit on the charger for a couple of hours, both with and without a battery. Nothing. I leave it "charging" overnight. It's warm in the morning, but still nothing. I can pull the battery and put it back in, hit the button, and a little while later it will heat up, as if it's running and something's hitting the CPU...but no vibrations from the phone, no sounds, no anything at all, other than the heat. I tried my jig just now, as it was in my desk at work. More nothing. The phone is cold, the battery is cold, it might as well be a rock.
So...any chance of saving this thing? I'm really hoping to hold out for Black Friday sales to replace it with an S4 or something. If I can get this thing to last me another two months, I'll be happy. If it goes belly up November 30, that's fine. I just hope I can make it last until then. I already had to throw down $50 to get my wife a limp-along phone off Craigslist...am I going to be stuck doing the same for me?
First see if you can boot into recovery and perform a wipe data/factory reset. If not, see if you can get into download mode. If you can, flash back to stock and see if that lets it boot. In any event, you should perform a wipe data/factory reset at the earliest possible moment, even if you have to reflash the firmware first. If you can get back to stock, you should be able to reinstall your custom firmware.
So far I can't convince it to acknowledge that it's even on. The only sign it's not 100% dead is that it warms up when plugged in. I have no idea if it's actually doing anything other than sending juice to the battery because there's nothing on the screen and no vibrations or sound to alert me that it's doing anything at all.
:-/
I'll add that my computer doesn't acknowledge the phone's existence. Linux desktop, lsusb shows nothing remotely Android/Samsung related. Granted, a failing microUSB port on the phone isn't helping, so I don't know how valid this particular test is.
So u are in the need to enter the fast boot mode or else try the official firmware installation by the help of SD card.....
Hit thanks if this helped you...
Sent from my Xperia U using xda app-developers app
...could you explain either of those? Fastboot, from what I can tell, is an HTC thing, and has nothing to do with Samsung phones in general nor the i777 in particular. As for firmware installation, is there a way to do this without any screen, PC connection, or feedback from the phone whatsoever?
nd_geek said:
...could you explain either of those? Fastboot, from what I can tell, is an HTC thing, and has nothing to do with Samsung phones in general nor the i777 in particular. As for firmware installation, is there a way to do this without any screen, PC connection, or feedback from the phone whatsoever?
Click to expand...
Click to collapse
Some Samsung phones have fast boot. I think the S4 does. The I777 does not.
If you can get the phone into download mode, (and if your usb connection is working, which I think from what you said may be in question,) then you can use the Samsung tool, Odin3, to flash firmware. You would have to use a Windows computer since Odin does not work on Linux.
I think your main problem is that you have a failing USB port. You should consider buying a replacement and putting it in yourself. It is supposed to be fairly easy. Once you have that working, you should be able to recover your phone.
Could it be possible that whatever it was trying to run drained the battery and now it's just refusing to charge? I had almost an exact same situation happen to me. I ended up having to buy a cheapo external battery charger from amazon to charge the battery and finally get it to boot.
creepyncrawly said:
Some Samsung phones have fast boot. I think the S4 does. The I777 does not.
If you can get the phone into download mode, (and if your usb connection is working, which I think from what you said may be in question,) then you can use the Samsung tool, Odin3, to flash firmware. You would have to use a Windows computer since Odin does not work on Linux.
I think your main problem is that you have a failing USB port. You should consider buying a replacement and putting it in yourself. It is supposed to be fairly easy. Once you have that working, you should be able to recover your phone.
Click to expand...
Click to collapse
Sadly, download mode doesn't seem likely. The phone is basically functionally a rock, with the limitation that it's probably easier to break than a rock. I may venture down the replacement USB road, although I'm a bit leery of spending money on the device, given that it won't even power on.
cicatriz63 said:
Could it be possible that whatever it was trying to run drained the battery and now it's just refusing to charge? I had almost an exact same situation happen to me. I ended up having to buy a cheapo external battery charger from amazon to charge the battery and finally get it to boot.
Click to expand...
Click to collapse
That's what I initially suspected, but I actually have a Samsung charger I bought off Amazon that came with a spare battery, and I've charged both batteries with it to full capacity. What does appear to be happening is that when it's generating heat, it's actually discharging the battery rather than charging, as a battery pulled from the phone takes much longer to charge on the external charger than one that has been charged from the charger, pulled, let sit, and put back in the charger. It's possible the phone refuses to power on until it can charge, though, because I too have had that issue in the past, and the only solution was to let it sit on the charger for a few hours. The first half-hour or so, nothing happened, but then eventually I'd get the battery charge animation. Sadly, letting the phone sit overnight did nothing this time around.
nd_geek said:
Sadly, download mode doesn't seem likely. The phone is basically functionally a rock, with the limitation that it's probably easier to break than a rock. I may venture down the replacement USB road, although I'm a bit leery of spending money on the device, given that it won't even power on.
That's what I initially suspected, but I actually have a Samsung charger I bought off Amazon that came with a spare battery, and I've charged both batteries with it to full capacity. What does appear to be happening is that when it's generating heat, it's actually discharging the battery rather than charging, as a battery pulled from the phone takes much longer to charge on the external charger than one that has been charged from the charger, pulled, let sit, and put back in the charger. It's possible the phone refuses to power on until it can charge, though, because I too have had that issue in the past, and the only solution was to let it sit on the charger for a few hours. The first half-hour or so, nothing happened, but then eventually I'd get the battery charge animation. Sadly, letting the phone sit overnight did nothing this time around.
Click to expand...
Click to collapse
So not even recovery mode works?
azeem40 said:
So not even recovery mode works?
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Click to collapse
The phone doesn't power on. If I plug it in, it gets warm, but other than that, it shows no signs of life.
You've tried plugging it into the computer without battery in case power button went dead?
Sent from my GT-p511x
Piece of cake. Although the replacement is a bit lower MhA it's a lot better than the old battery
pepi4 said:
Piece of cake.
Click to expand...
Click to collapse
That's nice to know. Is there a step-by-step guide for it?
Although the replacement is a bit lower MhA it's a lot better than the old battery
Click to expand...
Click to collapse
Which replacement battery did you get?
http://www.batteryship.com/htmlos/htmlos.cgi/batteryship/catalog.html
You even get free tools and they are not junk
How to that I used ... Hard to get pass the women robot talking LOL
https://www.youtube.com/watch?v=3F0glSyvj2s
At first I wondered about this being a smaller battery if it would run down fast. It doesn't !!! Works very well !!!
I changed out my battery with one from the above site, but now every time I plug a USB cable in it to charge it immediately shuts off. Anyone have any ideas what could cause this? Wonder if I got a bad battery..
mpry1 said:
I changed out my battery with one from the above site, but now every time I plug a USB cable in it to charge it immediately shuts off. Anyone have any ideas what could cause this? Wonder if I got a bad battery..
Click to expand...
Click to collapse
That could be a bad/shorted battery. Mine is still going strong! I would try and reverse everything and start over. When I did mine my vol controls didn't work. Didn't have the connector snapped down good enough
I was looking at this one (still am actually although the one you got is cheaper):
https://www.youtube.com/watch?v=3F0glSyvj2s
http://www.newpower99.com/Barnes_No...cement_Kit_p/barnes and noble nook tablet.htm
I am still trying to see if there is a setting that somehow caused my NT to freak out when the battery reaches 23%
But I have this bad feeling I will need to purchase a new battery. By the way, if the nook just shuts off watch the screen closely it usually says "battery too low" for a second before switching off. And if that is the case after plugging it in, you likely have a bad one and I would call the company to get a replacement.
I have been looking around and the only new replacement batteries I find are the two mentioned and both are 3200mh rather than 4000 of the original. How is your battery life since you changed it? Seems like it should be 1/4th what we had when new (or close to it). Or don't you really notice at this point? I have thought about ebay but then they are used batteries and you have no idea how many cycles are left, and likely hold 1/4th less anyway due to their age. *shurgs* not sure which way to go. As of now I am still having a "freak out" situation at about 23% (roughly). If it doesn't get any worse I can live with that, but from what I have read it will only get worse. :/
Anyone know of a battery app I could use to "adjust" the shut down threashold? I have one that will alert me to whatever I set so if I am not watching it will warn me so that will work if I don't have one that will actually shut it down. I know the "calibrating" apps don't do anything except delete the one file that is only usage stats from the last time it was plugged in, so I don't think there is a real way to calibrate it.
Update:
And on another note with the "spare parts" app the 'battery history' option errors with "the application spare parts ) process.com.andriod.spare_parts_ has topped unexpectedly, please try again." Is this normal? It is version 2.3.7. NT Hidden Settings app application settings/battery use works fine and shows the amount of everything that has used the battery since it was last plugged in/charged. Could this error be a sign of the problem with the phantom touches and inaccurate battery display? And if it is a sign of something broken, what and how do I fix it?
I received a replacement battery and it is doing the same thing, so somehow during the battery switch something got wonkey with my nook. It charges OK just powers off to do it. Since it's used by my kids now it's not essential to be on while charging, but I'd still like to figure this out.
mpry1 said:
I received a replacement battery and it is doing the same thing, so somehow during the battery switch something got wonkey with my nook. It charges OK just powers off to do it. Since it's used by my kids now it's not essential to be on while charging, but I'd still like to figure this out.
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Click to collapse
Which battery did you get? And very strange it shuts off when you plug it in. Never seen or heard of that before. It should boot up if off. Or do you mean the screen goes off/goes to sleep but not full shut down when you plug it in? If it is going to sleep, that is likely a app or setting that is doing it. Not sure which but you might want to check any battery apps you have or your settings. It would also depend on which ROM you are running, stock (which I am running) or something else.
Both batteries were the one mentioned in the original post. It doesn't go to sleep when I plug it in, it completely shuts off like no power at all. It will not boot up until I unplug the USB from a power source, although it will fully charge while it is plugged in. I've never seen anything like this and I've been messing with android since my original moto droid 1.
mpry1 said:
Both batteries were the one mentioned in the original post. It doesn't go to sleep when I plug it in, it completely shuts off like no power at all. It will not boot up until I unplug the USB from a power source, although it will fully charge while it is plugged in. I've never seen anything like this and I've been messing with android since my original moto droid 1.
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Click to collapse
Very strange indeed. The only thing I would say to do is turn the USB debugging on and off a few times, to see if that makes a difference. It shouldn't but if you tried two different brands of battery, sounds like it is the hardware on the nook. But that is one really weird bug.
Something interesting I discovered. While I did get a new battery, I decided to do some experimenting. Researching this issue a lot of people said you need to delete the "battery file". There even use to be a option in CWM to remove this file. The thing is the file is deleted every time you plug in the device. So that is not going to help.
Further digging found that some devices you need to plug them in and let them charge. Or run them down for say 20-30 minutes without sleeping then plug in and let it charge fully. For some devices this "resets" the battery management system.
What I found in my tests is the battery gets harder to charge with age. While the little n light might show green, it is likely only 80% charge sometimes 90%. And it takes awhile for it to really get to 100%. What I did was let it charge up to that full 100% which may take hours. I got a nice battery app that alerts me when it gets below 25% after that things can get crazy with phantom touches. I also have it set to give a audio alert when it reaches 100%, this way I know when it is fully charged.
I know the charge it fully (when it actually says 100% and I get a audio alert when this happens) before 50% or so has helped a lot. At one point the phantom touches started to happen at higher than 25% reaching almost 35%, last time I did a test to see when phantom touches started was 17% so it is much better. Not to the level when I bought the device, but still very useable.
I will put in the new battery sometime I am sure as it is taking longer and longer to reach the full 100% (but that is normal for lithium ion batteries.) it is certainly useable in this state and the phantom touch issue is not getting worse. I think the biggest issue was charging it until the n light went green and as the battery ages, the battery manger gets thrown off for some reason and charging to the true 100% helps recalibrate it.
Therefore I would run it for 20 minutes without letting it go to sleep, then charge until it is really full (usually leave it plugged in overnight and that should do it). Do this a few times and see if the battery is better.
Oh another thing I did. Power it off fully (hold down power button then tap shutoff) then plug it in to charge. Let the charger wake, reboot, and charge the device. This I also think helps recalibrate the system. Although I never did it when I ran it for 20 minutes then charged to full. But I am sure powering off then plugging in to charge at times made a difference as well.
I've just bought one of these batteries, hoping it'll be better than my old one.
It should be. It won't be quite as it was when it was new, as these new batteries don't have the capacity compared to the originals that B&N installed (perhaps a hour or two less runtime compared to the originals). But it will be better than a well used Nook Tablet battery that is fading fast.
I don't know if I need a new battery just yet, but I am experiencing the issue of the power being killed when plugging the Nook into the wall or USB (which means transfers over an SD card, which is a pain). I only spent $5 to get it and I can see why someone might have thought it was broken, since they probably plugged it in to charge it but it wouldn't turn on while plugged in. It does charge while off, however.
What I've noticed in my experience is that if I turn it on, I can plug it in while the Nook is on the N screen, and then it'll go to the Cynoboot screen still plugged in, but the second it goes to boot the OS it turns off.
Anyone have any ideas on why it would allow itself to be on until it tries to boot to the OS?
My phone is having issues charging even with three different cables. If I plug the phone in while it is off, it turns on and says it's charging. But it doesn't receive a charge. If the phone is on and I plug it in, it says it's charging on the lock screen, but the icon doesn't change to the charging symbol and it doesn't receive a charge. I have tried wiggle the cable a bit while it's plugged in, but that doesn't help. It doesn't seem like others are having this same issue either. Am I screwed? I also unlocked my phone. Does that mean I am double screw and Huawei won't help me?
5.1
5 Months old
Black
Hey all, here is a quick update. I spoke with a gentle from Huawei and was suppose to get a replacement sent out. However, I believe I was under volt charging the device and that's why I got those strange issues. It recharges every time from my car and my computer, but not from my wall. Kimtyson, Huawei said the exact same thing as you. Good call!
With the phone running, go to Phone Manager and then go to Power Saving and then Consumption Level. Is Cell Standby draining your battery? It is on mine.
GadgetStrutter said:
With the phone running, go to Phone Manager and then go to Power Saving and then Consumption Level. Is Cell Standby draining your battery? It is on mine.
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For me, it's only 2.94%. I have to say though, going from 4.3 to 5.1 was a huge difference in life battery. For the worse. I went from one charge every 3 to 4 days to once a day.
However, I believe the USB port might be broken. I don't know why though. I haven't been rough it or charged it at a angle that would put extra pressure on it.
It might be worth doing a factory reset and\or reinstalling. Could be a bad flash or something. Also, try returning to JB. Just make a TWRP backup or something so you can get back to where you are now. See if everything is working back in JB. If so, it's not the USB port.