Major issue with my N7 - Nexus 7 Q&A, Help & Troubleshooting

Ok everyone I am having a major problem with my N7. This morning I noticed it was out of power so plugged i tin like normal, then I went to turn it on got the Google logo then it went to the Nexus logo. And it kept cycling through the nexus logo for hours and will not turn off. Whenever I try to turn it off it just restarts from the beginning. Now I didn't buy my tablet from the play store so I would have to go through Asus for a warranty replacement. Has this happened to anyone else in the past?
Some info. Stock, unrooted, locked bootloader, stock 4.2

Well this never happened to me before. Did you try removing the battery?

Well, to start, unplug your N7 from the power source and hold the power button down for about 15 seconds, this should force it off. From there, turn it back on and let us know what happens.

kitsunisan said:
Well, to start, unplug your N7 from the power source and hold the power button down for about 15 seconds, this should force it off. From there, turn it back on and let us know what happens.
Click to expand...
Click to collapse
Tried that, when i hold down the power button to turn it off it turns off then it turns itself back on and goes back ot where we have started. Also it has been unplugged now im waiting for the battery to die

Dark lord me said:
Tried that, when i hold down the power button to turn it off it turns off then it turns itself back on and goes back ot where we have started. Also it has been unplugged now im waiting for the battery to die
Click to expand...
Click to collapse
I don't see that you have tried holding down the power and the volume down. This should get you a hard reset.
Here is a short topic where a power and vol down worked for someone where a straight power down did not:
http://rootzwiki.com/topic/30101-reboot-tip/
it's the last post (#6)
Rather than trying to run the battery down, which is not all the way down when it shuts off and would take a long time to discharge just sitting there, you could pull the battery if you feel comfortable opening the case. It's not glued or anything and the battery has a ribbon connector.

So its in a boot loop? Reflash the image with Mskips toolkit option 9 after booting into fast boot mode. If that isn't the problem then do a warranty return. Not sure why you're stuck in a loop.
Sent from my Nexus 7 using xda premium

Related

Nexus 7 16 gig won't restart or charge

Hey all, I'm running a stock un-rooted Nexus 7 16gig tablet and I can't get it to turn on. It was on about 15 minutes ago, I decided to shut it down and reboot it, was having some wifi issues. I shut it down, waited a few minutes (got busy watching the Packer game which ended horribly) and went to go and turn it back on. Hit the power button and nothing. Tried a few mare times, pressing a little hard on the button and nothing. Then went and plugged it in, and nothing. Not charging screen, no light up, nothing.
Anyone have and thoughts? Pointers? Suggestions?
I'm at a loss.
Thanks,
Brocja01
press and hold the power button for about 20-25 seconds
Thats exactly what I needed to do. Crazy... Not sure why it wouldn't charge. Once it actually booted I was able to plug it in and it started charging. So Weird.
brocja01 said:
Thats exactly what I needed to do. Crazy... Not sure why it wouldn't charge. Once it actually booted I was able to plug it in and it started charging. So Weird.
Click to expand...
Click to collapse
i dont think it was ever actually shut down. ive read often enough of people shutting down bit it caught in a state between shut down and powered off, displaying a black screen, but still actually off. if so, it makes sense that it wasnt charging. all the long press on the power button did was force reboot it.

[Q] Nexus 10 wont turn on.

I placed my nexus 10 on charging yesterday, and after a while (2-4 hours later) when i came back, i found the device to be turned off, I tried the power button in all the combination with volume buttons, but still no luck (even held the power button for 3mins) I searched online, and couldnt find any help on other forums. Some said to keep it on charging overnight and then try powering it up. But still no luck.
I dont get any notification when i connect it to charger, although when i press the power button while connected the screen lights up, and battery charging sign shows up.
Any help would be greatly appreciated.
epicbearman said:
I placed my nexus 10 on charging yesterday, and after a while (2-4 hours later) when i came back, i found the device to be turned off, I tried the power button in all the combination with volume buttons, but still no luck (even held the power button for 3mins) I searched online, and couldnt find any help on other forums. Some said to keep it on charging overnight and then try powering it up. But still no luck.
I dont get any notification when i connect it to charger, although when i press the power button while connected the screen lights up, and battery charging sign shows up.
Any help would be greatly appreciated.
Click to expand...
Click to collapse
So you cannot even get to the recovery?
You ether over charged it (very unlikely to happen) or you have a faulty N10.
Sent from my Nexus 4
andyabc said:
So you cannot even get to the recovery?
You ether over charged it (very unlikely to happen) or you have a faulty N10.
Sent from my Nexus 4
Click to expand...
Click to collapse
No, can't even get to recovery. But i have been using the device for over two months now, nothing like this ever happened. What about the charging sign when i press the power button. It might be some kind of a sleep mode or something, no?
epicbearman said:
No, can't even get to recovery. But i have been using the device for over two months now, nothing like this ever happened. What about the charging sign when i press the power button. It might be some kind of a sleep mode or something, no?
Click to expand...
Click to collapse
Could be a bootloader corruption, software issue, hardware issue or some part of the hardware "thinks" that it is still on when it is not causing it to not switch on.
Have you noticed any issues before it just came off like extreme overheating?
Sent from my Nexus 4
andyabc said:
Could be a bootloader corruption, software issue, hardware issue or some part of the hardware "thinks" that it is still on when it is not causing it to not switch on.
Have you noticed any issues before it just came off like extreme overheating?
Sent from my Nexus 4
Click to expand...
Click to collapse
Well, yes the tablet was getting overheated after a long session of hd videos, or games, but that use to happen all the times.
I believe this is normally called a "Sleep of Death" or sometimes "screen off death". Hold power + vol up + vol down at the same time for 5 seconds and you should boot into fastboot. From there hit the power button to turn the tablet on. Then go about finding a better ROM/kernel combo that doesnt give you this problem.
EniGmA1987 said:
I believe this is normally called a "Sleep of Death" or sometimes "screen off death". Hold power + vol up + vol down at the same time for 5 seconds and you should boot into the bootloader. From there hit the power button to turn the tablet on. Then go about finding a better ROM/kernel combo that doesnt give you this problem.
Click to expand...
Click to collapse
Like i said, its not working i tried using that combination, it wouldnt budge. Screen wont even turn on.
EniGmA1987 said:
I believe this is normally called a "Sleep of Death" or sometimes "screen off death". Hold power + vol up + vol down at the same time for 5 seconds and you should boot into the bootloader. From there hit the power button to turn the tablet on. Then go about finding a better ROM/kernel combo that doesnt give you this problem.
Click to expand...
Click to collapse
You just need to press power and volume down to enter the bootloader.
Sent from my Nexus 4
---------- Post added at 11:35 PM ---------- Previous post was at 11:34 PM ----------
epicbearman said:
Like i said, its not working i tried using that combination, it wouldnt budge. Screen wont even turn on.
Click to expand...
Click to collapse
Try press and holding the power button for around 10 seconds and then try powering it up again.
Sent from my Nexus 4
Are you using the charger/cable that came with your device?
Its working.
Weird how it was taking any input from the power button though. I kept the tablet on charging over night and i tried turning it on in the morning and it worked.
Thank you all.
epicbearman said:
Its working.
Weird how it was taking any input from the power button though. I kept the tablet on charging over night and i tried turning it on in the morning and it worked.
Click to expand...
Click to collapse
I've had my Nexus 10 for less than a week, and this morning I encountered this problem. I was working on setting up syncing through an app called FolderSync and SugarSync. Syncing of one of the folders seemed to go into a loop. The device locked up completely a couple times. I got the process running again and left it running while I went for a workout. When I came back no way could I get it turned on.
I had tried all the things suggested here before checking here for help. I'll try your "solution" of leaving the device on charge overnight. If I can't get it going tomorrow morning I'll return it to Staples, where I bought it.
I have an iPad and have never encountered anything even close to these problems. Bought the Nexus 10 specifically to run the Vim Touch app for Android. The only Vim app for the iPad is horribly crippled.
Sounds like this thread pretty much exhausted the possibilities by the time epicbearman discovered his "solution," but if by chance anyone has any further suggestions I would be grateful.
Thanks,
Eric Weir
I had the exact problem as the OP and none of my chargers worked. I then googled and found someone that said to try to charge via their PC USB instead of the wall charger. I left it plugged into the USB for a couple of hours and the charge went to 4% ( so it must have been very dead ) and all is well.
I charged it via the usb charger, and connected it to my pc overnight. Try doing that.
Take off the back and disconnect the battery and reconnect it
Sent from my Nexus 4 @1.67 GHz on Stock 4.2.2
IRX120 said:
Take off the back and disconnect the battery and reconnect it
Click to expand...
Click to collapse
Thanks. If I'd gotten this in time, I suspect it would've worked. But when I couldn't get it started after trying everything else and leaving it on charge overnight, I returned it to Staples.
Will order a Nexus 7 from Google. If I can get Vim Touch running successfully---my reason for wanting an Android tablet---and I find the screen to small for heavy writing---I want to get by with a soft keyboard---I'll order another 10 and give the 7 to my daughter.
Thanks again,
Eric Weir

N7 won't turn on. I get some faint "snow" when trying to charge

My 14th month old N7 (out of warranty ) has run into some issues. I left it alone for a few days and the battery ran out. Nothing completely out of the usual, happens from time to time. I picked it up, plugged it into the Asus charger, white battery logo came up, i then turned it on.. Google logo. I then set it down.
Came back to it about an hour later and it was off. I tried turning it on while still plugged in, notthing. I unplugged and tried turning it on, nothing. I try my HTC One charger, nothing. Tried plugging it into a USB port on one of my computers, nothing. I read the sticky thread and tried all of the recommended items. Re-seated my battery connector, nothing. I realized that when i tried turning it on, i'd get a faint flicker / 'snow' like affect, like the screen was trying to turn on, but something was wrong. I tried holding the power button for over a minute, nothing. Tried vol down+power for 60 seconds, nothing.
I would search, but im getting a message that it's down.
Any thoughts?
I'm running Slim Rom (4.3) + M Kernel. I hadn't flashed or done anything out of the ordinary in weeks.
Kewjoe said:
My 14th month old N7 (out of warranty ) has run into some issues. I left it alone for a few days and the battery ran out. Nothing completely out of the usual, happens from time to time. I picked it up, plugged it into the Asus charger, white battery logo came up, i then turned it on.. Google logo. I then set it down.
Came back to it about an hour later and it was off. I tried turning it on while still plugged in, notthing. I unplugged and tried turning it on, nothing. I try my HTC One charger, nothing. Tried plugging it into a USB port on one of my computers, nothing. I read the sticky thread and tried all of the recommended items. Re-seated my battery connector, nothing. I realized that when i tried turning it on, i'd get a faint flicker / 'snow' like affect, like the screen was trying to turn on, but something was wrong. I tried holding the power button for over a minute, nothing. Tried vol down+power for 60 seconds, nothing.
I would search, but im getting a message that it's down.
Any thoughts?
I'm running Slim Rom (4.3) + M Kernel. I hadn't flashed or done anything out of the ordinary in weeks.
Click to expand...
Click to collapse
happened on mine the other day its a low battery problem, let it charge for 30mins or so, hold power down for like 30 seconds, let go and repress power button, should boot as norm.
seems if the batt completly runs down it sorta needs a jump start from charger to get goin again
I've tried this multiple times. I was thinking along the same lines. I'll keep trying this. But so far no dice. Thanks for the reply.
Kewjoe said:
I've tried this multiple times. I was thinking along the same lines. I'll keep trying this. But so far no dice. Thanks for the reply.
Click to expand...
Click to collapse
ok try holding the power button down for a while , does the screen light up? if yes wait and when it turns off again try rebooting as from fresh.
if no re-try and re-try again if no luck. im at a loss, other then trying with / without charger plugged.
edit: on that thought , charge 30 mins hold power button screen lights up no detail/image, hold power ,screen goes off, charge from charger should progress ( press power momentarily and see battery charging icon, screen goes off. wait another 30mins, boot as norm.
chismay said:
ok try holding the power button down for a while , does the screen light up? if yes wait and when it turns off again try rebooting as from fresh.
if no re-try and re-try again if no luck. im at a loss, other then trying with / without charger plugged.
edit: on that thought , charge 30 mins hold power button screen lights up no detail/image, hold power ,screen goes off, charge from charger should progress ( press power momentarily and see battery charging icon, screen goes off. wait another 30mins, boot as norm.
Click to expand...
Click to collapse
When i hold the power button (i mention i hold it for 60 seconds at least, i literally timed it). i get flickering snow, nothing visible. but the screen turns on and i see some faint snow.
The rest of what you wrote i've tried numerous times in different configurations. charging for 30 mins, not charging, plugged in, not plugged, etc. so far i have not seen any icons or anything. The only sign of life is the flickering screen with faint snow.
Kewjoe said:
When i hold the power button (i mention i hold it for 60 seconds at least, i literally timed it). i get flickering snow, nothing visible. but the screen turns on and i see some faint snow.
The rest of what you wrote i've tried numerous times in different configurations. charging for 30 mins, not charging, plugged in, not plugged, etc. so far i have not seen any icons or anything. The only sign of life is the flickering screen with faint snow.
Click to expand...
Click to collapse
It's a long shot but still: try leaving it alone for couple of days (3 for example), completely alone, don't touch it, after few days, plug it in and leave it alone, after an hour or two try turning it on.
I've had such experience with some old iPod, it died, but came back to life a month later when I tried to play with it again.
We have a sticky for this, at the top of the Troubleshooting page.
http://forum.xda-developers.com/showthread.php?t=2090826
Hope this helps.
-bk

Restart loop

hello. i have s4 5 months.today as i opened my browser my phone shuted down. i removed the battery and when i put the battery back it opens without power button stuck 2seconds on samsung galaxy s4 logo and turned off.any ideas ?
ph3n0ngr said:
hello. i have s4 5 months.today as i opened my browser my phone shuted down. i removed the battery and when i put the battery back it opens without power button stuck 2seconds on samsung galaxy s4 logo and turned off.any ideas ?
Click to expand...
Click to collapse
By the coincidence, is your batt serial no beginning with BD? If so, look on the battery. Is it swollen a bit? If so - call samsung, they will replace battery free of charge.
If not, try to connect phone to charger, insert battery, go to recovery and make full wipe.
spamtrash said:
By the coincidence, is your batt serial no beginning with BD? If so, look on the battery. Is it swollen a bit? If so - call samsung, they will replace battery free of charge.
If not, try to connect phone to charger, insert battery, go to recovery and make full wipe.
Click to expand...
Click to collapse
it starts with LC
also...when i have battery off and put it on again the phone powers on without pressing the power button....it shows samsung galaxy s4 logo and then turned off.... Also...when i plug the charger and put the battery back to phone phone does not respond...
ph3n0ngr said:
also...when i have battery off and put it on again the phone powers on without pressing the power button....it shows samsung galaxy s4 logo and then turned off.... Also...when i plug the charger and put the battery back to phone phone does not respond...
Click to expand...
Click to collapse
it might be a power button issue
ok, this may be tricky.
while keeping volume down and home - slice battery in. If phone would boot in download mode (even just for a while) - then it will be power button issue.
it boots up on download mode for seconds and then powered off again....
Im digging up this post because this is the same problem i had.
I ended up removing the power button all together, carefully popped it off the motherboard. The phone no longer boots for a couple secs and powers off again so i think the power button was the issue. Now i have the problem of powering on the phone. I tried booting into download mode (to have the reboot option) by holding volume down+home while plugging it in but nothing happens, all i get is the battery charging icon. Ive been into download mode before i removed the button, but like the OP, it would only be a second or 2 before rebooting. Am i doing the correct procedure for download mode? Perhaps my timing is off? Any suggestions?
At least i do get the battery charge and it stays until i unplug the phone, no more boot loop!
Jaa-Yoo said:
Im digging up this post because this is the same problem i had.
I ended up removing the power button all together, carefully popped it off the motherboard. The phone no longer boots for a couple secs and powers off again so i think the power button was the issue. Now i have the problem of powering on the phone. I tried booting into download mode (to have the reboot option) by holding volume down+home while plugging it in but nothing happens, all i get is the battery charging icon. Ive been into download mode before i removed the button, but like the OP, it would only be a second or 2 before rebooting. Am i doing the correct procedure for download mode? Perhaps my timing is off? Any suggestions?
At least i do get the battery charge and it stays until i unplug the phone, no more boot loop!
Click to expand...
Click to collapse
Ok so i managed to get the phone to power up without going into download mode using this method i found on youtube. No boot loop and fully powered up now, the only thing is that im stuck on the lock screen. My friend cant remember his pin so i cant get in, the only option left now is to boot into recovery and do a factory reset yes? Well, how can i do that without a power button? Any suggestions?

phone won't boot/start up

I have a at&t S4 that all of a sudden today stopped working. When I restart the phone by taking the battery out and putting back in, it gets stuck on the Samsung Galaxy S4 logo and then a black screen. I tried going to recovery mode(volume up + home + power button), and it shows recovery booting in blue for a sec then goes black. I tried for download mode the warning comes up but after pressing volume up it goes black. I really don't know what to do at this point.
Tried using kies or smart switch to perform a firmware recovery?
Yes, the computer doesn't recognize that the phone is connected. It's as if when the phone goes to the black screen its actually powered off. The only time I get anything from the phone is when I pull the battery and reinsert it.
bubba9004 said:
I have a at&t S4 that all of a sudden today stopped working. When I restart the phone by taking the battery out and putting back in, it gets stuck on the Samsung Galaxy S4 logo and then a black screen. I tried going to recovery mode(volume up + home + power button), and it shows recovery booting in blue for a sec then goes black. I tried for download mode the warning comes up but after pressing volume up it goes black. I really don't know what to do at this point.
Click to expand...
Click to collapse
When the phone battery are too low, the phone could behave like that too.
Do you know that battery is fully charged or has more than 60%?
If not charge the phone first.
Plug the charger. If you did not see any sign showing that you phone is charging, press and hold the power button for 10 sec and release it. You should see the phone charging image.
Let me know whether your phone has enough battery power left but showing the above mentioned problems.
sway8966 said:
When the phone battery are too low, the phone could behave like that too.
Do you know that battery is fully charged or has more than 60%?
If not charge the phone first.
Plug the charger. If you did not see any sign showing that you phone is charging, press and hold the power button for 10 sec and release it. You should see the phone charging image.
Let me know whether your phone has enough battery power left but showing the above mentioned problems.
Click to expand...
Click to collapse
Yes, the battery is fully charged. I have another S4 Active that I've swapped the batteries with, along with a spare official Samsung battery and charger. It doesn't matter which battery I use, the phone acts the same with any of the 3.
bubba9004 said:
Yes, the battery is fully charged. I have another S4 Active that I've swapped the batteries with, along with a spare official Samsung battery and charger. It doesn't matter which battery I use, the phone acts the same with any of the 3.
Click to expand...
Click to collapse
If you have enough battery power left but the phone was behaved like that, you might need to flash the firmware.
Are you in lollipop or kitkat? For the time being, the only firmware available for kit-kat and lollipop is NB1 firmware cooked by muniz_ri . You can get it from here.
You mentioned that you can go to download mode but the phone shut off when you press volume up to go to the download mode after the warning.
Try the 10 sec method. Go to the download mode (power+home+volume-down) but keep holding the power button for 10 sec even though you see the warning message appear. Then you press volume up to go the download mode. Try this way and let me know.
sway8966 said:
If you have enough battery power left but the phone was behaved like that, you might need to flash the firmware.
Are you in lollipop or kitkat? For the time being, the only firmware available for kit-kat and lollipop is NB1 firmware cooked by muniz_ri . You can get it from here.
You mentioned that you can go to download mode but the phone shut off when you press volume up to go to the download mode after the warning.
Try the 10 sec method. Go to the download mode (power+home+volume-down) but keep holding the power button for 10 sec even though you see the warning message appear. Then you press volume up to go the download mode. Try this way and let me know.
Click to expand...
Click to collapse
It was on Kitkat. I can press the volume up and get it to show the download android screen but it immediately shuts off. Holding the power button for 10 secs. and then the volume up didn't do anything. The phone shuts off after 1-2 secs. of doing anything.
bubba9004 said:
It was on Kitkat. I can press the volume up and get it to show the download android screen but it immediately shuts off. Holding the power button for 10 secs. and then the volume up didn't do anything. The phone shuts off after 1-2 secs. of doing anything.
Click to expand...
Click to collapse
That is strange. The same thing happened to me. But I avoided the phone shut down by 10 sec methods.
Just hold the power+home+volume down for 10 sec, even though the warning sign show up, and then let it go all of them. Plug the phone to the computer and then press the volume-down to go into download mode. It works for me. Not on the first try though.
Try doing that with batter charger plug in too.
sway8966 said:
That is strange. The same thing happened to me. But I avoided the phone shut down by 10 sec methods.
Just hold the power+home+volume down for 10 sec, even though the warning sign show up, and then let it go all of them. Plug the phone to the computer and then press the volume-down to go into download mode. It works for me. Not on the first try though.
Try doing that with batter charger plug in too.
Click to expand...
Click to collapse
Thanks for your help. I figured out whats wrong, its got a faulty power button. I took the phone apart, put it back together, and was able to get it to boot completely. The slightest touch of the power button causes it to reboot though, so I'm going to need to replace it.
bubba9004 said:
Thanks for your help. I figured out whats wrong, its got a faulty power button. I took the phone apart, put it back together, and was able to get it to boot completely. The slightest touch of the power button causes it to reboot though, so I'm going to need to replace it.
Click to expand...
Click to collapse
Glad you found the problem. I was trouble shooting for the software error.
Yes, power bottom could give you a problem too. I use screen off app so I do not have to use power button to turn off the screen.

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