So today I had my Phone sitting in my cup holder that is in front of an ac vent. While in the cup holder in just went dead, it was fully charged and it is stock. I had cranked the ac pretty low and forgot, about 70 degrees. I tried to reboot after I noticed it was off and it wouldn't come back on with a quick power button push. I then tried a long power button push and got nothing. I then put it on a charger thinking that might work and again nothing. So I then i tried a hard button push again and started looping the LG logo but still wouldn't come on. I finally tried holding both volume buttons and the power and after a good 30 seconds it booted up and went back to normal and hasn't done it since. Now I have heard of phones getting too hot but is it possible the phone shut down because it got too cold?
jonny4 said:
So today I had my Phone sitting in my cup holder that is in front of an ac vent. While in the cup holder in just went dead, it was fully charged and it is stock. I had cranked the ac pretty low and forgot, about 70 degrees. I tried to reboot after I noticed it was off and it wouldn't come back on with a quick power button push. I then tried a long power button push and got nothing. I then put it on a charger thinking that might work and again nothing. So I then i tried a hard button push again and started looping the LG logo but still wouldn't come on. I finally tried holding both volume buttons and the power and after a good 30 seconds it booted up and went back to normal and hasn't done it since. Now I have heard of phones getting too hot but is it possible the phone shut down because it got too cold?
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Click to collapse
Just my experience messing with Li-ion or Li-po battery in the RC world, they are sensitive to temperature, which is what this cell phone battery is made of. But 70 deg typically is not going to matter much. But then you said it's by air vent and the ac air vent is blowing air significantly low, since I'm not sure what's your vent temperature is, but in general voltage on the battery drops as temperature goes down. So it's possible when you're trying to power it on, system doesn't think you have enough power and when you finally holding it in your hand, it slowly comes back to room temperature (and your body heat transfer speed it up) then the voltage is restored then phone boot as normal.
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Hey Y'all,
I helped a friend of mine root his NT awhile back, and it was working fine for months. I showed him CM7 running off of the SD card and he liked it, so I set it up for him on Friday. I did a factory restore on the NT, and he reentered his BN account info. I then booted off the SD card and everything was working fine as I could tell.
He brought it to me this morning and it won't charge. The "n" is always green when plugged up to the wall and it never goes orange to indicate it is charging. But when I attempt to power it on, it is always displaying the low power message and says to plug in the charger.
What I have tried:
-I removed the SD card, and it still won't charge... (not that it would matter).
-I have 3 chargers and my own NT. When I plug a charger up to my NT it works fine and the "n" goes to orange. But when I plug the same charger into my friends NT, the "n" is green and I can't get past the low batter warning.
-I have had my friends NT connected to a wall charger for about 3 hours this morning and I still can't get it to boot.
Any ideas on what might be wrong and how to fix it?
Thanks for your time.
I found this thread and tried both of the suggestions and my friends NT still won't charge or boot.
http://forum.xda-developers.com/showthread.php?p=23444675
The same thing happened to my wife's nook this evening. I think the battery is completely run down, but won't receive a charge for some reason. Her charger showed green also.
I tried, removing and reinserting the SD card and also holding power for 20 seconds. I finally was able to hold down the power and the N button down for about 20 seconds. This did the trick. It showed that the battery was too low to turn on. After about 10 minutes, it booted.
Hmm, I get the battery is too low to power on every time I hold down the power button and the "n" is always green on the charger.
strandedinar, did you have the power cord hooked up when you held the power button and "n" button down for 20 seconds?
So connecting the STOCK charger and the STOCK cable and leaving it alone for an hour or so isn't doing the trick? That's really the most that many of us have had to do... No "n" button needed either.
ansar99 said:
Hmm, I get the battery is too low to power on every time I hold down the power button and the "n" is always green on the charger.
strandedinar, did you have the power cord hooked up when you held the power button and "n" button down for 20 seconds?
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Click to collapse
Yes. The nook was plugged in and the "n" was green. The Nook wouldn't power on - My wife was convinced it was my fault for rooting it...
I left it plugged in like that for 20 minutes, but nothing happened when I tried to start it. The charging light was green. I finally tried the power + N button trick and then I received the notice that the power was too low to turn on. This was the first time I received this message. After this, the color of the charging light changed from green to red/orange and I could tell that it was receiving the charge. After 10-15, it power on and has worked normally since.
I tried every thing I could think of and google and nothing worked. I took it to BandN yesterday. They thought it was a typical issue that they see a lot of, but after 3 folks at the store couldn't figure it out, they called 1800 support. Support said it was a bad usb port and swapped it out for a refurbished model.
I still think I could have fixed it, but after a couple of days my friend was getting antsy for it.
Thanks for all of the responses.
strandedinar said:
The same thing happened to my wife's nook this evening. I think the battery is completely run down, but won't receive a charge for some reason. Her charger showed green also.
I tried, removing and reinserting the SD card and also holding power for 20 seconds. I finally was able to hold down the power and the N button down for about 20 seconds. This did the trick. It showed that the battery was too low to turn on. After about 10 minutes, it booted.
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How did you do that? I was trying to hold the buttons and never got anything.
My NT has no juice to boot, but when I plug in a power cord (stock), plugged into stock power charger, it tries to boot up. Power indicator does turn orange, but then it runs out of power once it starts booting and turns off. After a few second it turns back on, and repeats same cycle again. It never boots to the point where it can actually sleep, seems that boot-up process takes more energy than charges could give it.
Try charging it from your computer. Just as suggestion not sure if it will help.
Sent from Nook Tablet 8GB with CM10.1 iamafanof's build.
galets said:
How did you do that? I was trying to hold the buttons and never got anything.
My NT has no juice to boot, but when I plug in a power cord (stock), plugged into stock power charger, it tries to boot up. Power indicator does turn orange, but then it runs out of power once it starts booting and turns off. After a few second it turns back on, and repeats same cycle again. It never boots to the point where it can actually sleep, seems that boot-up process takes more energy than charges could give it.
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Click to collapse
Hello Galets, did you manage to finally charge your Nook? I have the same problem as you have - when stock cable and charger are plugged in - device tries to boot and screen shows up but due to lack of power in accum it turns off and in a few seconds the cycle repeats.
I hardly understand - how it is possible that having mains power plugged it - there is not enough energy to charge and do other necessary things...
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UPDATE: problem solved. In order to solve it, I had to disassemble the tablet and unplug the screen cord, then I put the power cable in, battery charged up for about an hour or so, then I plugged screen cord back in and turned it on without a problem. The down side of early charge attempts is that tablet decided that I had 10 failed boots and it reset my previously rooted device. Now I have fresh and clean stock 1.4.2 version.
PepeladZ said:
Hello Galets, did you manage to finally charge your Nook? I have the same problem as you have - when stock cable and charger are plugged in - device tries to boot and screen shows up but due to lack of power in accum it turns off and in a few seconds the cycle repeats.
I hardly understand - how it is possible that having mains power plugged it - there is not enough energy to charge and do other necessary things...
---------------
UPDATE: problem solved. In order to solve it, I had to disassemble the tablet and unplug the screen cord, then I put the power cable in, battery charged up for about an hour or so, then I plugged screen cord back in and turned it on without a problem. The down side of early charge attempts is that tablet decided that I had 10 failed boots and it reset my previously rooted device. Now I have fresh and clean stock 1.4.2 version.
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Click to collapse
how did you unplug the screen cord? I've looked up how to take apart the nook, but I'm not sure which one would the the screen cord. Did you follow a tutorial somewhere, or was it easy to figure out once you opened it up?
ACL3 said:
how did you unplug the screen cord? I've looked up how to take apart the nook, but I'm not sure which one would the the screen cord. Did you follow a tutorial somewhere, or was it easy to figure out once you opened it up?
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ACL3, check this link: http://www.ifixit.com/Guide/Installing+Nook+Tablet+Display/11148/1.
I did not really follow the guide. I was looking for first two bolts to unscrew. The rest was quite simple but challenging - i don't usually disassemble things.
I did not pull out any of the buttons or battery from where they are and simply unplugged their connectors too - you will see 3 small foam rubber black box-like pieces (in step 9 they only marked one of them). There are plastic connectors under foam rubber pieces.
Be careful not to short-circuit anything with metallic tools.
On the attached image I marked the screen connector. I unplugged it by gently hooking it with two small screwdrivers. When putting it back I gently pressed it until I heard a click. And make sure those small slots on connector match with corresponding ones on motherboard.
Also, when finishing assembly I ran into a small problem with corner flap (which covers sdcard) - it did not want to smoothly slide in and out. So, pull it off completely and after putting plastic cover in place and screwing last two bolts, put it back - some small help of small screwdriver will be needed.
Hope my explanation was helpful
PepeladZ said:
ACL3, check this link: http://www.ifixit.com/Guide/Installing+Nook+Tablet+Display/11148/1.
I did not really follow the guide. I was looking for first two bolts to unscrew. The rest was quite simple but challenging - i don't usually disassemble things.
I did not pull out any of the buttons or battery from where they are and simply unplugged their connectors too - you will see 3 small foam rubber black box-like pieces (in step 9 they only marked one of them). There are plastic connectors under foam rubber pieces.
Be careful not to short-circuit anything with metallic tools.
On the attached image I marked the screen connector. I unplugged it by gently hooking it with two small screwdrivers. When putting it back I gently pressed it until I heard a click. And make sure those small slots on connector match with corresponding ones on motherboard.
Also, when finishing assembly I ran into a small problem with corner flap (which covers sdcard) - it did not want to smoothly slide in and out. So, pull it off completely and after putting plastic cover in place and screwing last two bolts, put it back - some small help of small screwdriver will be needed.
Hope my explanation was helpful
Click to expand...
Click to collapse
thanks, looks cool. I've never taken anything apart before and I'm afraid of short circuiting something. I think I might try this.
Its been day 3 of having a phone that refuses to power on..
I went camping over the weekend and had it plugged into (and charging) my travel charger via cigarette lighter and it was working fine. At one point I went to use it and turned on the screen but it glitched out by the screen turning on then off a few times until i left the screen off, gave it a few seconds, and turned it on again and was able to put in my security lock etc. It does that once in awhile and I chalk it up to a computer booting up and my impatience
Well the screen powered off while reading on my phone, and I went to power on but it wouldnt stay on this time. I got a glimpse of the battery and its probably 85% charged, but upon coming home and leaving it on the charger all night I am still with a dead phone.
There is no flashing white/green/red led light a the front, even when plugged in.
Ive tried all the solutions on these forums (camera + power button, camera + power + volume buttons, removed battery, cleaned with eraser, tried different chargers via wall outlets & laptop, and even the cmd & "bootloader" stuff but the request is never recognized..) I really need some help with this, PLEAAAASSSEE!
Ive never rooted (?) or flashed or did anything of the sort with this phone, its pretty much stock.
**I just tried putting the battery in after a few min, and as soon as the pins touched and the battery was in, the back lower camera light flashed on for a few seconds and then shut off. Still no power to the phone though
I cant find anything close to my problem so I hope someone out there has a new & successful suggestion!!
Thanks all!
Have you tried a new battery? It truly sounds like your battery is gone and doesn't hold (much) of a charge.
Just curious if anyone out there has taken the back of their DNA and unhooked the battery as a form of resetting the phone.
Here the backstory. I was testing out the VRtheme system and had a bad flash....like a fool I attempted to reboot the phone instead of flashing back to where I was. It should have only messed up the systemui.apk, but as of now my phone is completely dead. I've left it on the charger overnight, held down all button combos I could think of (there are only 3, so its not a lot of combos)...and I get nothing. Capacitive buttons don't flash. Charge light doesn't come on when plugged in.
So what I was thinking is that a battery pull for 20 minutes or so normally "resets" phones (with removeable batteries of course)....so maybe I could remove the back cover and unhook the battery for a while. Thoughts?
Not sure about the battery pull but I've always just plugged it into the charger then pressed and held power+volume down for as long as it takes (about 20 seconds maybe a little longer). Should reboot in to the bootloader.
I'm hoping that will be the case when I get home from work today. But up until now I haven't got it to respond to anything.
When I first got mine it seemed like I couldn't get it to come back to life unless it was plugged into the charger. Later it seemed that I just needed to hold down the buttons like I said above. YMMV.
Had and still have an issue today. While driving earlier yesterday, I was listening to music in my car with phone connected on headphone jack. It made a buzzing noise( that came through car audio) , I disconnected and removed battery. I replaced battery and phone will not turn back on at all, will only show both Samsung logo's then go black screen. The phone will only power up for a total of 7 seconds from initial power up vibration on any combination of buttons,or even using a JIG
which went right into download mode.
- If I plug into power source , phone will just vibrate.
- I removed battery and replace, both Samsung logo's will appear then turn off.
- If I hold volume down + power button and place battery in, it will go into download mode. In this mode I can hit volume down to restart but it will just stay on black screen. Also if I hold these buttons down and do nothing the screen will just go black after a few seconds.
- I can also put into download mode to hook up to ODIN using same method and pressing volume up, but will say downloading then shut off.
- I've tried holding down volume up+down and power and it will not go into recovery.
- Odin with recognize it for a second (say device plugged in) and start to download files then it will say device unplugged after a few seconds
I've been looking at unbricking and unrooting threads with no luck. Any help is appreciated.
I don't know about the buzzing sound, but the rest sounds like a dead battery. Are you sure it's charged or that your charger didn't die on you? I don't believe phones brick after the flash is up and running.
Really now said:
I don't know about the buzzing sound, but the rest sounds like a dead battery. Are you sure it's charged or that your charger didn't die on you? I don't believe phones brick after the flash is up and running.
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Click to collapse
Yes I'm 1000% percent sure its not a dead battery and even had it at AT&T warranty center this morning having them look at it. I was trying my luck even though its out of warranty. This issue is like none I've heard, because of the fact that phone actually powers up and I can get into download mode within those 7 seconds, but will shut off after. I've timed it till it powers off.
Really now said:
I don't know about the buzzing sound, but the rest sounds like a dead battery. Are you sure it's charged or that your charger didn't die on you? I don't believe phones brick after the flash is up and running.
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Stuck power button? Flick back or the phone a few times
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Am having this same issue with my girlfriends phone just as of a couple hours ago. It's completely stock and just recently received an OTA update a few days ago, she showed me bragging how she can watch videos and do other things at the same time now knowing how much I want a Note lol, she's had zero issues with it other than the battery getting very hot while charging a week or so ago and seems to be very slightly bulging now that I've looked at it. Out of nowhere today as we're walking through a parking lot and she's carrying it in her hand, not even using it, she says something is wrong with her phone and hands it to me with it vibrating every couple of seconds and not reacting to any buttons. I take the battery out and when we get inside put it back in and without even pressing anything it goes to the Samsung logo, black, animated Samsung logo, then turns off and goes back to vibrating every couple seconds. I look up the button combination for recovery and download mode and all that, I try recovery and it does the same vibrate every couple of seconds but never goes to recovery, and if I take the battery out, hold down volume down, then put the battery in it comes up with the warning about installing ROMs and all that, weather I press volume down or do nothing it stays at that screen for maybe five seconds then turns off and the only way I can get to the download mode is to take the battery out then press volume down. I have the Sprint Samsung Epic 4G and the batteries aren't the same but are very similar, mine is just shorter and 1500mAh, hers is taller and 2500mAh. So for the heck of it I put hers in my phone and hold it enough to where it connects and turn on my phone without issue, it boots up and shows 70% on the battery, I now have it plugged in and charging the battery at the moment with no issues. I put my battery in her phone and held it till it connects and it does the same Samsung logo, goes black, Samsung animated logo, then turns off BUT no vibrating anymore. If I press ANY button though as long as it's being held it vibrates every couple of seconds and if I hold volume down while I connect the battery it goes to Download mode but can't do anything and it turns off after about five seconds same as before, still no recovery access either. Heard that there is a power button issue with this phone and for the heck of it I've wiggled and pressed the power button with no charger or battery connected for around half an hour just to see if I can make it better, but no luck.
Hope to hear a solution to this. I would take the back cover off and clean the power button but I'm not sure if that would void the AT&T insurance, not going to try till I know I can get away with it without them knowing because if I can't fix it it's getting sent off for repairs.
EDIT: And sort of following captemo's suggestion I took a metal box, laid a hoodie over it for a bit of padding, then moderately bounced the phone on its power button side (without letting the power button be pressed/pushed, by letting it hang over the edge of the box) for a minute or so as if thinking the power button was stuck pushed in and I was trying to knock it back out, then put its battery back in and what do you know it turns on fine now. Weirdest way I've ever had to fix a phone, but hey it works now so the girlfriend will be happy.
herqulees said:
Am having this same issue with my girlfriends phone just as of a couple hours ago. It's completely stock and just recently received an OTA update a few days ago, she showed me bragging how she can watch videos and do other things at the same time now knowing how much I want a Note lol, she's had zero issues with it other than the battery getting very hot while charging a week or so ago and seems to be very slightly bulging now that I've looked at it. Out of nowhere today as we're walking through a parking lot and she's carrying it in her hand, not even using it, she says something is wrong with her phone and hands it to me with it vibrating every couple of seconds and not reacting to any buttons. I take the battery out and when we get inside put it back in and without even pressing anything it goes to the Samsung logo, black, animated Samsung logo, then turns off and goes back to vibrating every couple seconds. I look up the button combination for recovery and download mode and all that, I try recovery and it does the same vibrate every couple of seconds but never goes to recovery, and if I take the battery out, hold down volume down, then put the battery in it comes up with the warning about installing ROMs and all that, weather I press volume down or do nothing it stays at that screen for maybe five seconds then turns off and the only way I can get to the download mode is to take the battery out then press volume down. I have the Sprint Samsung Epic 4G and the batteries aren't the same but are very similar, mine is just shorter and 1500mAh, hers is taller and 2500mAh. So for the heck of it I put hers in my phone and hold it enough to where it connects and turn on my phone without issue, it boots up and shows 70% on the battery, I now have it plugged in and charging the battery at the moment with no issues. I put my battery in her phone and held it till it connects and it does the same Samsung logo, goes black, Samsung animated logo, then turns off BUT no vibrating anymore. If I press ANY button though as long as it's being held it vibrates every couple of seconds and if I hold volume down while I connect the battery it goes to Download mode but can't do anything and it turns off after about five seconds same as before, still no recovery access either. Heard that there is a power button issue with this phone and for the heck of it I've wiggled and pressed the power button with no charger or battery connected for around half an hour just to see if I can make it better, but no luck.
Hope to hear a solution to this. I would take the back cover off and clean the power button but I'm not sure if that would void the AT&T insurance, not going to try till I know I can get away with it without them knowing because if I can't fix it it's getting sent off for repairs.
EDIT: And sort of following captemo's suggestion I took a metal box, laid a hoodie over it for a bit of padding, then moderately bounced the phone on its power button side (without letting the power button be pressed/pushed, by letting it hang over the edge of the box) for a minute or so as if thinking the power button was stuck pushed in and I was trying to knock it back out, then put its battery back in and what do you know it turns on fine now. Weirdest way I've ever had to fix a phone, but hey it works now so the girlfriend will be happy.
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Click to collapse
Sort of is about right, glad you got it going. Many will complain about the button still clicking even though button is actually stuck. Many have cited some very simple sounding instructions for cleaning power button contacts with minimal deconstruction of phone. Using swab and alcohol. Run a search in q&a, sure you will get something.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
I tried the button with no resolution. I just went ahead and jumped ship and bought Note 3. Thanks to everyone who tried to help out
Hi,
I had a Sony Z5 compact in a drawer for about 2 years, where the battery already was weak. I'd like to use it as a smarthome button panel where the bad battery won't matter, but I can't get it to turn on anymore.
When I first plugged it, the status LED switched to constant red. I unplugged it a couple hours later, just to find, that the LED stayed on even when unplugged. The device still was cold, so I don't think, that it really charged.
Since there was no reaction on the power button, I tried the "OFF"-button in the SIM slot. After reading on the internet, I held that button for 2 minutes. The phone vibrated every 15s, so it seemed alive. I then plugged in the charger, again the status LED turned constant red. This time the device got warm, seemingly charging.
After a couple of hours I tried starting it, but still, theres no reaction on the Power button. I again tried the OFF button, with no reaction whatsoever, not even vibrating anymore. Also the status LED shows no more reaction on plugging it in.
Is the device dead now? Anything I can try to get it working again? I don't need the battery anymore, Its supposed to spend its second life permanently plugged in.
best regards,
RockNLol
The usual advice is to make sure it is off (Hold power and vol-downup until it vibrates 3x / if really dead, just wait ~20s), and then leave it on a charger for a few hours. If that doesn't do it, your battery is toast.
Even if it is revivable, there is a chance that it is so weak that it will make the phone crash - the battery is used like a buffer even when on the charger, and if the phone needs high peak current, it will try to take it from the battery. If the battery is too weak, voltage will drop and the phone will crash.
In any way, I would not want a battery that is potentially damaged to be at the charger 24/7. If you deep-discharge a battery, it can form tiny little short circuits, and if you charge it, it can become a fire hazard. As in, burn your house down and release lots of toxic fumes while doing so.
If you are familiar with soldering, the best solution would be to open the phone, remove the battery, and replace it with a fake battery circuit. Obviously, don't do this if you aren't comfortable doing this kind of stuff, and always have a plan for what to do if the battery decides to light on fire.
For that, after you removed the battery, try to pry off the yellow tape on it, and get to the battery protection PCB near the connector. Carefully cut the leads to the actual battery and remove it (this is the most dangerous part). Then, solder a large capacitor across the battery leads and a connector for a power supply that can provide around 4V at, idk, 2-3A. There aren't many 4V power supplies, but a 5V one and a (silicon) diode in series work well (make sure the diode can survive a couple amps). Then, plug the fake battery back into the mainboard, fix everything in place using tape or glue, and see if it boots.
1ggn3 said:
The usual advice is to make sure it is off (Hold power and vol-down until it vibrates 3x / if really dead, just wait ~20s),
Click to expand...
Click to collapse
Power and Volume-Up?
Sure, one of the two
Power + Volume-down starts TWRP when the device is not running.
When the device is running, it takes a screenshot.