Pretty self explanatory. It was dead for a couple of days, I put it on the charger for almost the whole day, now I get no picture, but the backlight is on when I hold the power down a minute. I bought it at walmart, doubt I have the receipt, and didn't get any extended warranty. Is there a way to fix this issue?
I've got the same issue. I was playing Tupsu, when suddenly my n7 rebooted and there was no picture, just semi-strong backlight. When the tablet died, the battery was about 45-50% and I was charging it through notebook's usb port (original n7 cable). I tried to turn it off, but pressing and holding the power button only made it reboot once again (i assume it was rebooting, since the backlight was turning off and on in a second). I've tried it many times, with tablet plugged into wall/usb charger, and even with the power+volume up/down combination, it would still behave the same way. However sometimes after rebooting there was not only backlight, but also thin, mostly white, horizontal lines, appearing in random places of the screen (appearing and disappearing after like 50-100 ms). It would stop only after a reboot, and happened every 5-10 reboots.
I've decided to let the battery die to see if it changes something, and as you may guess - it didn't. It died estimately after 2 or 3 hours. Now it's all the same, except for when I plug it to the charger, there's only a very low backlight (still no picture) and it's blinking... It also makes this continuous "electricity-related" (sorry, I don't know what's the word to call it ) sound. After I press the power on, or let it charge for 1-2 minutes it boots up, and there's just a semi-strong backlight, like earlier.
It's a refurbished 8gb n7, which I got 5 days ago from the polish Asus online store. Oh, and the speakers weren't 100% fine, if it changes something. They were fine at first, but after i plugged headphones in and out, they were making cracking sounds when the volume was over 50% or something like that. Is there any hope I can fix it myself?
edit: the android ver. is 4.2.2, not rooted
the device is getting warm on the left side when being charged, or just turned on...
Have you tried pulling the battery for a couple of minutes?
Sent from my Nexus 7 using Tapatalk HD
Nope, i don't want to mess with the hardware since i've bought it only few days ago... I'm afraid it may leave some traces of being opened, i'm not willing to take the risk.
You won't leave a trace pulling the battery. Just use a guitar pick or credit card and run it round, the back comes off very easily.
Sent from my GT-I9000 using Tapatalk 2
Yeah that is definitely worth a shot. Just pull the battery.
Ok, I did it.
Didn't change a thing >:[
btw. I didn't actually pulled off the battery, i've just disconnected it - it doesn't make a difference, does it? and another thing - the backlight was turning on immediately after connecting the battery... with these randomly popping horizontal lines.
I've got this too!
wujekandrzej said:
Ok, I did it.
Didn't change a thing >:[
btw. I didn't actually pulled off the battery, i've just disconnected it - it doesn't make a difference, does it? and another thing - the backlight was turning on immediately after connecting the battery... with these randomly popping horizontal lines.
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I've got this too! Pulling the battery does nothing. Last time it just fixed itself, now nothing.
Worried I'll have to take mine back.
How did that 'fixing itself' happened to you if i may ask? And how long did it last?
Your tablet has gone into sleep mode to protect the battery from further damage due to its low level of charge. What you're seeing is by design, as complete discharge of a lithium based battery is bad for it. You should never, ever, let it sit dead for a couple days. If you do discharge it to the point of shutdown again, immediately put some sort of charge on it, as waiting to long will cause the battery's protection circuit to fail completely. Best practice is to not let your device go to the point of shutdown, but rather to plug it in when not in use. Your battery will have a longer lifespan.
Plug your N7 into the charger and immediately press power and volume down to get into the bootloader. Once there, use the volume key to scroll to Power Off Device and then press the power button. After it powers off, unplug it and then plug it back in. It should then charge normally.
You seem not to have read my posts at all. When it happened, the battery was about 45-50% and it was plugged into the laptop's usb port. It suddenly rebooted and there was no more picture, just the backlight - and it lasted for like 2-3 hours (maybe even longer)! Can a completely discharged battery power the backlight for this long? After it turned off at last, i put it on charge and i've tried the power+volume method and it didn't do anything (btw. i already wrote about it)... then i let it charge for like 5-6 hours and it didn't change anything except for the fact, that the battery was evidently charged, because the backlight again lasted for few hours.
wujekandrzej said:
You seem not to have read my posts at all. When it happened, the battery was about 45-50% and it was plugged into the laptop's usb port. It suddenly rebooted and there was no more picture, just the backlight - and it lasted for like 2-3 hours (maybe even longer)! Can a completely discharged battery power the backlight for this long? After it turned off at last, i put it on charge and i've tried the power+volume method and it didn't do anything (btw. i already wrote about it)... then i let it charge for like 5-6 hours and it didn't change anything except for the fact, that the battery was evidently charged, because the backlight again lasted for few hours.
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Click to collapse
Actually, I was addressing the OP without realizing that this was a zombie thread.
To answer your question though... yes, when in sleep mode the battery can still turn on the backlight and keep it powered for some time due to the low power requirement of a black screen. Many users that have found themselves in sleep mode actually have their tablets enter into a prolonged cycle of bootloops. From the sounds of it, your device seems to have, for reasons unknown, put itself to sleep.
Anyway, I digress... I know you've stated you've tried various combinations of the power and volume keys. Have you attempted holding all three buttons for approximately 30-40 seconds while the tablet is plugged in? If it that will force it into the bootloader, you can follow the steps that I posted to get it up and running again. If not, then it seems your best available option is to seek an RMA from ASUS. Given your speaker issue, I'd send it back regardless- you shouldn't be expected to deal with battery and speaker issues after only five days.
najaboy said:
Actually, I was addressing the OP without realizing that this was a zombie thread.
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Click to collapse
Ok, then i'm sorry for few harsh words
najaboy said:
Anyway, I digress... I know you've stated you've tried various combinations of the power and volume keys. Have you attempted holding all three buttons for approximately 30-40 seconds while the tablet is plugged in?
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Click to collapse
Yep. Many times. And even longer than a minute.
Anyway, I'm going to contact their crappy support. Thanks everyone for trying to help.
Related
Hey guys.
I'm experiencing some problems with my Touch HD. When I get it to start I'm really happy with it and every program runs as it should.
My problem is the battery or something like that. I can have the battery power at 70% one second and the next the phone is telling me to either charge the battery or the device will shut down. I try to start it again but at the start screen it says Battery level to low, your device will shut down.
When I try to charge it the LED under the power button will show a solid amber light, telling me that it's charging, for about 7-9 seconds and after that it will either start flashing between amber and green light or just turn off.
I've tried having it like that over night and try to start the phone in the morning and the same message appear on screen, "Warning! Battery level to low! Your device will shut down!"
Read in some other post about someone who had a similar problem, but not quite the same, and that was resolved by removing the battery, plug in the USB cable for a few seconds, disconnect everything and then put the battery back in and start the phone. This works for me about 30% of the time. When it works the battery shows about 60-80% power.
I've tried a hard reset and I've tried to contact HTC without any success. Any suggestions from you guys, you seem to know almost everything there is to know about these phones.
Thanks.
/Markus
Have you tried keeping the battery out for a day?
When I got my phone, the first 7 charges I turned the phone off and charged it all the the way up (to get the calibration accurate). Now the battery life is excellent, I can use it for couple of days without charging.
You should try returning the phone, seems it is fine software wise. Can you use the phone with the charger in? If yes, then there is probably something wrong with the battery or the hardware that is interacting with the charging.
I've tried keeping the battery out for about 24 hours but it didn't help. I can't start the phone when I have it plugged to the charger. I'm going to return it today and see if they can just exchange the phone in store or if they need to ship it somewhere to be repaired
Thanks anyway.
Sounds like a defective battery to me...
That's a good idea, better to get a new one.
crapforbrains said:
Hey guys.
I'm experiencing some problems with my Touch HD. When I get it to start I'm really happy with it and every program runs as it should.
My problem is the battery or something like that. I can have the battery power at 70% one second and the next the phone is telling me to either charge the battery or the device will shut down. I try to start it again but at the start screen it says Battery level to low, your device will shut down.
When I try to charge it the LED under the power button will show a solid amber light, telling me that it's charging, for about 7-9 seconds and after that it will either start flashing between amber and green light or just turn off.
I've tried having it like that over night and try to start the phone in the morning and the same message appear on screen, "Warning! Battery level to low! Your device will shut down!"
Read in some other post about someone who had a similar problem, but not quite the same, and that was resolved by removing the battery, plug in the USB cable for a few seconds, disconnect everything and then put the battery back in and start the phone. This works for me about 30% of the time. When it works the battery shows about 60-80% power.
I've tried a hard reset and I've tried to contact HTC without any success. Any suggestions from you guys, you seem to know almost everything there is to know about these phones.
Thanks.
/Markus
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Click to collapse
switch off wifi, install Advanced Config, select all power management enabled
and try again. i also had the situation that my hd took 1550 mA. so the battery was sucked empty within several hours. now everything runs perfect...
Have exactly the same problem
I have exactly the same problem. One moment the phone works and charges fine and the next it shows irratic battery levels and eventually needs to be shut down. Following the shutdown you get the 'Battery level too low' message on startup, right after the Smart Mobility screen. In my case I think the problem mostly started when the phone was either just connected to a PC using the sync cable or when trying to top-up the charge using the wall charger. I also noticed that when the problem appears the plug symbol would appear (indicating it is charging) or sometimes not and then when checking the battery level, the indicators would actually go down sometimes losing 2 or 3 at a time until there is only 1 left and the phone says it needs to shut down. Pluging in the wall charger does not help as the LED indicating the phone is charging only stays on for a few seconds.
Now, I had many trials with removing battery, sim card, memory card or any of those in combination and sometimes these seem to work, but I think the key is the temperature of the phone. Every time I went to the car to drive home, where it was cold, the phone would start charging again, when just before that it would not react to anything all the time I was in the warm office.
I have now contacted HTC and am sending it to their repair centre tomorrow. Hopefully this is recognised as a fault and I will get a replacement. BTW, they arranged for a free courier pickup. Not bad, but the key for me is that the phone is being replaced as I really like the phone.
Update: Got a replacement after 1 week
Got my replacement phone today and hope that this time I have no further problems. I also had to return my previous one with a screen problem (see my post here http://forum.xda-developers.com/showthread.php?t=439410&page=2).
Everything went quite smootly and I liked the offer of a free of charge UPS pickup, so the only complaint I really have is that HTC send me a new phone but no replacement screen protector. Just the original screen sticker (the one with some writing on it) had been stuck on. It was in a bit of state like it had been taken off and put back on several times. I just called them to send me a replacement screen protector, but I don't hold my breath to get one. Probably end up buying it from the website.
Any body have this issue. When ever the phone is on and I need to pull the battery for whatever reason, it will not turn on when I put the battery back in.
If I wait and turn off the phone before taking out the battery it is fine though.
How I get it back on is a problem itself. It would take me upwards of 20 min of just pressing the power button x amount of time, removing the battery and charging it.
This isn't even happening when I am out of battery. I would have 90% left
Also sometime it looks like it tries to turn on, display the black screen with HTC logo and displays the radio... then it just keeps on rebooting itself. Never actually fully booting.
aeo 37 said:
Any body have this issue. When ever the phone is on and I need to pull the battery for whatever reason, it will not turn on when I put the battery back in.
If I wait and turn off the phone before taking out the battery it is fine though.
How I get it back on is a problem itself. It would take me upwards of 20 min of just pressing the power button x amount of time, removing the battery and charging it.
This isn't even happening when I am out of battery. I would have 90% left
Also sometime it looks like it tries to turn on, display the black screen with HTC logo and displays the radio... then it just keeps on rebooting itself. Never actually fully booting.
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Click to collapse
sounds like you are abusing your phone. dont mash buttons that many times, you are hurting it.
take the battery out, hold the power key for 10 seconds, let go. then put battery in, and press power key once.
if this doesnt work, get an iphone
I've read a few posts similar to this.
Solution: Once battery is out, leave out for 15-30 mins, reinstall battery WITHOUT turning device on, plug in power supply, wait an additional 5-10 mins before turning back on. Works for others.
OK will try this. Is there a reason why this always happend when I pull the battery though?
Also, check your pins. One of them may be bent.
donkeypunch85 said:
I've read a few posts similar to this.
Solution: Once battery is out, leave out for 15-30 mins, reinstall battery WITHOUT turning device on, plug in power supply, wait an additional 5-10 mins before turning back on. Works for others.
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Click to collapse
Ok this way seem to work. Thanks
There wasn't any bent pins on it though. I thought that this was just one of the flaws of running Android on the HD2.
Because I never had an issue with pulling the battery and it not powering on while it was on the stock WIMO
thanks guys! it worked.
why do people continue to pull the battery? i think i've ever only pulled the battery once in the 3 months i've been flashing roms and testing builds. reset buttons always works for me. don't want to get them pins bent!
So today I left my tablet to charge, it was at like 25% left, while I went to out to my practice. When I returned about 2 hours later, it wouldn't turn on. Before I had left, it was charging so it's not that it ran out of power because the outlet didn't work. I switched the outlets, plugged it into a computer, pressed the power button a bunch of times; nothing. Perhaps I got a defected unit or downloaded a bad app? I don't know :/; ideas?
guih said:
So today I left my tablet to charge, it was at like 25% left, while I went to out to my practice. When I returned about 2 hours later, it wouldn't turn on. Before I had left, it was charging so it's not that it ran out of power because the outlet didn't work. I switched the outlets, plugged it into a computer, pressed the power button a bunch of times; nothing. Perhaps I got a defected unit or downloaded a bad app? I don't know :/; ideas?
Click to expand...
Click to collapse
try holding down the power button for 15 seconds
Hold the power button 15 seconds, let go, then try again for another 7 seconds.
Wow, that actually worked, thank you so much (held it till it turned on, about 10-15 seconds). Would you happen to know why it had just turned off like that? I'm at 81% battery now, so it turned off at some point on its own, and why did I have to do such a long power button press?
guih said:
Wow, that actually worked, thank you so much (held it till it turned on, about 10-15 seconds). Would you happen to know why it had just turned off like that? I'm at 81% battery now, so it turned off at some point on its own, and why did I have to do such a long power button press?
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i believe there is a sleep mode/lock hiccup sometimes. I experience it with my media dock but not my keyboard dock. its weird and sometimes annoying but not too much to kill my day lol
Yeah this happened to me too. Just a small quirk.
Oh, ok, thanks guys lol I had like freaked out.
I got my Tab yesterday. Used it then set it charging overnight. Won't power on this morning. The back does get warm though. I tried holding down the power button for at least a minute and also tried the 15 then 7 approach. Nothing.
I also tried an idea from a different forum (referencing a Froyo glitch) and tried touching the screen while holding the power button.
Does this sound like a hardware fail?
I had the same problem. Held the power button for 15 seconds and then 7 and nothing happened. Held the power button for a long time. What do I do next?
Mine didnt turn on today. Tried the 15 second press procedure and nothing happened. I grabbed my wall charger and plugged it in and left it sitting there for a minute. I tried the 15 second procedure again and this time the screen lit up and was showing that the battery was charging because it was in red. After about a minute the tab booted itself and all is normal now. I guess my battery went dead since i hadnt charged it and completley turned off my tab. Thats why it rebooted itself. Nothing to worry about.
happened to me too
looks like there is a glitch ... mine was left charging today ... and it did charge but did not want to start... i did leave it on.
I connected to PC and press Power ON + Volume Up + VOlume down all at the same time and it did seem to restart ... worried there is something wrong with it though.
I bought it in USA and Im in UK I wonder if things go wrong if Samsung UK would repair it.
I've had it for about 9 days and have used it every single day. Last night I downloaded 2 movies onto it and everything was fine. Today it would not power on one bit! I charged it over night so the battery shouldn't have drained. I ended up fixing my problem by doing the following:
Held the power button.
At the same time, placed a finger on the screen.
Held it down for 15 seconds or more and it booted up!
Not sure why it only worked when I put my finger on the screen.
I ended up exchanging it either way just in case.
lost2030 said:
I've had it for about 9 days and have used it every single day. Last night I downloaded 2 movies onto it and everything was fine. Today it would not power on one bit! I charged it over night so the battery shouldn't have drained. I ended up fixing my problem by doing the following:
Held the power button.
At the same time, placed a finger on the screen.
Held it down for 15 seconds or more and it booted up!
Not sure why it only worked when I put my finger on the screen.
I ended up exchanging it either way just in case.
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Click to collapse
For some reason this keeps happening to me when I leave it to charge over night.
jspookss said:
For some reason this keeps happening to me when I leave it to charge over night.
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Click to collapse
Every night?? I charge it every night and it only happened once. Hopefully my new one is fine.
jspookss said:
For some reason this keeps happening to me when I leave it to charge over night.
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Click to collapse
this also happened to me for the first time this morning from leaving it on charge overnight.
however i was able to start it by removing cable and holding power for 15secs.
what could be causing this? I hope it doesn't happen every night.
I had this problem as well a few weeks ago. Samsung sent me a shipping label and told me to ship it back. I got it back in just under 10 days. They never did tell me what was wrong but they shipped back my original Tab.
Guys,
Is this happening when you leave it booted up and charging overnight or is the unit powered off and charging?
I will say that this issue has only happened to me one time and it happened under the following conditions (Ive had a Tab sense launch day):
- Battery was at 35%.
- While booted, I plugged it in to charge overnight.
- The next day at 09:00 I attempted to use it and had to hold the power button for 15 sec to get it to boot.
So, It *might* only happen if its booted with low battery and you charge it overnight. Powering it off and charging doesnt appear to cause it at all in my case.
Yes it happened while powered on and left to charge overnight. Battery was probably around 30-40% as you said.
Still doesn't explain why it would happen regardless of the % of battery left. Hence the reason it's meant to be charging.
I've had it happen very quickly. High level of charge, plug it in, walk off, come back, unplug, and it's dead, need the 15 second press to power back on.
Not a huge deal, but annoying. And a bit scary, since mine went into the "sleep of death" once already, took four days for the battery to drain enough to break the nvflash loop it was in.
Hello everyone, I'll tell you the ultimate experience even if it is not the first time that happens.
2 days ago I left the nexus to 46% of battery, the next day I found it turned off and the device would not turn on.
by trying to connect to the power turns on but the display flickers constantly and makes a sound as if he were about to explode.
if I leave a little in office and try to turn it on, it lights up with difficulty and then it shuts down suddenly emitting sound louder and have vertical lines and horizontal time.
I'll post a video to make you understand better.
the problem is not to download the battery or something more serious?
sorry for my enghlis, it's made by google!
video:
https://www.youtube.com/watch?v=HLmB8oYIZDQ&list=UUzN7W_39t1nVjuznllixPIg&index=1
If you leave it plugged in and don't touch it for a while, does it eventually do anything? Just sounds like the battery is dead to me, although not sure about the weirdness with screen etc.
Leave it plugged in for a while on the original charger/cable and if it doesn't boot up right after 30-60 minutes of charging, you might have to warranty exchange it.
if I leave the tablet plugged into the power outlet for a few minutes (maybe 10) everything is back to normal.
the strange thing is that this problem occurs when the battery drops below 20%
di4b0liko said:
if I leave the tablet plugged into the power outlet for a few minutes (maybe 10) everything is back to normal.
the strange thing is that this problem occurs when the battery drops below 20%
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Click to collapse
Good to hear! My guess is that it didn't have enough power to really power on, which I don't like in various ways.. First it might mean the battery was overly discharged (when your battery is at 0%, it's still well above minimum LiPoly minimum voltage, but I question that in your case for example) or that something else is kooky.
I'd say charge it to 100% and use it normally, and let it get down to 5-10%, lower if you like... If it continues to behave okay, maybe just a fluke. If it freaks out below 15% or something, warranty it.
After watching that video I would say return it. That looks bad man! Also, what is on the end of your power cable? Looks like a piece of wire or tape or something?
Shot straight outta my Shostocked SGH-I777 Rocketship
It appears dead. It's late at night so i've yet to try googling about recovery through a pc of some such, truth be told while i can flash a rom with instructions, i'm no guru or anything. It was running CM 10.2? the latest stable release for N10, think that's the one.
I was just browsing a forum, and after posting, the disply started to stutter as i scrolled up, when i stopped scrolling, the stuttering decreased, and then as i scrolled and scrolled fasster, the stuttering increased until display turned black (stoned curiosity...) and now i can't get anything out of my N10. Holding power, trying to reboot into recovery. Nothing. No lights, sounds, vibrations. None of the normal stuff.
anyone got any ideas for me to awke up to? I think that if i can't get any life out of it, then would it be a case of trying to sideload or such with ADB? as i say, i'm a complete rookie, just a couple of flashes under my belt.
Second question, i probably have the answer to, but am i right in thinking custom roms void the warranty?
edit: Plugged it into the wall a few minutes ago. It had had about 40% remaining, but when i plugged it in, i got the battery simbol on the screen (big white battery charging in center) and any time i press or hold the power button, or with volume buttons, i get nothing but the icon. I'll keep it plugged in for now and see what happens. But by the look of i assume if it can do that when plugged into the wall i sohuld hpoefully be able to connect via my computer in some manner
If by stuttering you mean blinking, this has happened to me when my N10 was on charger with a dead battery and it drew more power than what the charger could provide. When you scroll, the CPU frequency gets bumped up and the tablet consumes more power. After a while it just turned off for me (when I changed to an other app I think), when there just wasn't enough power.
So I would suggest leaving it on charge for a few hours, then try holding all buttons and see if you can get into bootloader. I've had the battery levels not display correctly on some custom ROMs, (for example I would do a reboot at 60% battery and after it reboots it only said 13%) so just charging it a bit might solve the problem.
bee55 said:
If by stuttering you mean blinking, this has happened to me when my N10 was on charger with a dead battery and it drew more power than what the charger could provide. When you scroll, the CPU frequency gets bumped up and the tablet consumes more power. After a while it just turned off for me (when I changed to an other app I think), when there just wasn't enough power.
So I would suggest leaving it on charge for a few hours, then try holding all buttons and see if you can get into bootloader. I've had the battery levels not display correctly on some custom ROMs, (for example I would do a reboot at 60% battery and after it reboots it only said 13%) so just charging it a bit might solve the problem.
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Click to collapse
Thanks. As of 5 minutes ago it got back to life. All battery apps showed 40 odd. Strange.
i think your battery has gone/ on its way out, exact same happened to mine, you need a pogo charger and the original wall adapter to provide enough power to switch it on. Only thing which worked for me, hope it works for you.
hellomynameistj said:
i think your battery has gone/ on its way out, exact same happened to mine, you need a pogo charger and the original wall adapter to provide enough power to switch it on. Only thing which worked for me, hope it works for you.
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Might be the battery, might be glitchy software. Plugged it in via USB and it worked sometime later. Will be keeping an eye on it.
It will probably be fine. I thought I had a bricked N10 but turns out the battery was dead. It is fine now. THought I had a bricked N7 also, turned out the battery plug got loose, (screen would flash every 2 seconds with static on the screen) popped it open and oushed the plug in and that is fine now too.
If it continues to die around the 40-50% mark, you'll need to send it in for repairs. Make sure they don't just try replacing the USB port on it, the battery itself is the culprit.
http://forum.xda-developers.com/showthread.php?p=44068051#post44068051