[Q] Turned it off...Won't turn back on. - Nexus 7 (2013) Q&A

I did a soft shutdown and now it won't turn on. No response to Vol UP + Vol DOWN + Power. Nothing but black. Its connected to power and was at 80% when I shutdown. USB debugging was enabled. Any hints? Thanks, -RP

ronpandolfi said:
I did a soft shutdown and now it won't turn on. No response to Vol UP + Vol DOWN + Power. Nothing but black. Its connected to power and was at 80% when I shutdown. USB debugging was enabled. Any hints? Thanks, -RP
Click to expand...
Click to collapse
Ugh, I had to hold power button for 30 seconds. Its really excessive. Delete this please. Thanks.

funny thing is the old nexus 7 had the same issues

I received mine today and it wouldn't turn on at all. All I got was a flashing white light after holding the button to turn it on so knowing that the same thing was common on the previous generation N7 I tried the 30 second trick with no success so I figured I'd share my experience.
Turns out my battery was at 0% out of the box. It was so dead I had to do the following to actually get it to start charging unfortunately:
1. Open it, I followed the guide @ ifixit: http://www.ifixit.com/Teardown/Nexus+7+2nd+Generation+Teardown/16072/1
Note: The plastic bezel surrounding the screen is incredibly soft plastic I just learned. Even using plastic pry tools I ended up leaving marks the plastic, despite being extremely careful.
2. Disconnect the battery (follow the guide above)
3. Press the power button and hold down for 10 seconds, but don't release yet.
4. Using the supplied AC adapter, apply the power and continue holding for another 10 seconds.
5. Reconnect the battery while the AC adapter is plugged in​This should get you to the point where you at least see the battery charge icon on the LCD. I waited another 30 minutes before moving on and powering the device on. I intend to leave it charging to 100% before I do anything else with it.

I remember on some older devices I've had when they got into 0% state, they didn't want to take a charge from a high power charger and I needed to switch to 500ma USB 1.1/2.0 slot on PC and let it sit a while before it would trickle in enough charge to get some life.
After that it would take charge from any source again.

joshtheitguy said:
I received mine today and it wouldn't turn on at all. All I got was a flashing white light after holding the button to turn it on so knowing that the same thing was common on the previous generation N7 I tried the 30 second trick with no success so I figured I'd share my experience.
Turns out my battery was at 0% out of the box. It was so dead I had to do the following to actually get it to start charging unfortunately:
1. Open it, I followed the guide @ ifixit: http://www.ifixit.com/Teardown/Nexus+7+2nd+Generation+Teardown/16072/1
Note: The plastic bezel surrounding the screen is incredibly soft plastic I just learned. Even using plastic pry tools I ended up leaving marks the plastic, despite being extremely careful.
2. Disconnect the battery (follow the guide above)
3. Press the power button and hold down for 10 seconds, but don't release yet.
4. Using the supplied AC adapter, apply the power and continue holding for another 10 seconds.
5. Reconnect the battery while the AC adapter is plugged in​This should get you to the point where you at least see the battery charge icon on the LCD. I waited another 30 minutes before moving on and powering the device on. I intend to leave it charging to 100% before I do anything else with it.
Click to expand...
Click to collapse
mine was this dead too I just let it sit on charge for 2 hours and was up and running.

kpa2727 said:
mine was this dead too I just let it sit on charge for 2 hours and was up and running.
Click to expand...
Click to collapse
lol - this happened to me too. Except double whammy - as soon as it was charged enough to turn on, it wanted to do the system update and wasn't charged enough to do that. Back to the USB it went!

Well I got my replacement for the one with the dead pixels, it started up fine and I even configured just to check it had no dead pixels. I had to step away for a few minutes and it was off, completely dead. Tried ever variation of tricks and I get nothing, no white LED, no charge indicator, nothing.
I think I'm sending both the replacement and the original back for a refund, this is just unacceptable at this point.

I bought one but returned it after 3-4 days. Mine was fully powered and I would go through the shutdown procedure. The device would power off. Then I tried to turn it back on. It would not work. I held it down for several variations of time: pushed it quickly, help the power button in for 10 sec, 15 sec, 30 sec... I found that when I connected the device to power through the usb the screen would show 100% charge right away. I would then hit the power button and it would turn on fine. I immediately unplugged the device and everything was fine. i powered it down again and repeated this process 2-3 more times before I said the heck with it. Anyone else know of this issue or did I just have some crazy unit?

Related

Galaxy S II Won't Turn On or Charge!!!

BACKGROUND:
At first, it just started turning off for no reason (probably a month and a half ago).
Then this week, it would start to randomly turn off, and start vibrating constantly when charging. After fiddling with the buttons, it would eventually find itself into download mode and then later turn itself on.
NOW:
Monday morning, after several days of draining the battery to 0% (due to me solely charging it for an hour a day), the phone went dead. Then, that night, upon trying to charge it and turn it on, it remained stuck on a black screen. After taking out the battery, it would continuously beep while still connected to the charger. As soon as I put in the battery, it would become COMPLETELY unresponsive, with and without the charger. After fiddling with it for over an hour, I put it down and slept, leaving the battery and charge in the phone.
Tuesday morning, I clicked the power button, and the phone flashed to the lock screen. It displayed it was at 0% battery, but I think it showed a charging sign. I used the phone for almost 2 minutes, checking my texts, before it again went completely black. The phone became completely unresponsive (no beeping or anything, regardless of anything I did). I connected it to a wall charger again, and left it there for the entire afternoon.
Then when I picked it up at around 6 o clock, I discovered that the continuous beeping stopped, and it would only beep after holding the power button for around 5 seconds. It could beep regardless of whether the battery was out or not.
After charging it all that night, I found I could make it flash the Samsung logo for a fraction of a second after holding down both volume buttons and the power button. I looked it up, and supposedly it brings you to recovery mode, but I believe my phone is switching off immediately after bringing up the logo.
At around 12, Tuesday night, I again decided to hold down the power button (just to reassure myself of it still somewhat functioning), and it powered on for around ten seconds (!!!) . It got all the way to the end of the pink loading bar screen, but then beeped and restarted. The second time, it lasted only around three seconds, without even getting to the loading bar screen, before powering off. It became completely unresponsive afterwards, no beeping, regardless of where it was charging and whether the battery was in or not.
Wednesday morning (today), after having left it charge all night, the phone still was completely unresponsive. I then left it to charge the entire afternoon (until now), and it was still completely unresponsive. I took it apart and played around with the power button, but it didn't seem to be stuck. I've now put it back together and leaving it connected to the wall charger once again.
What I've Tried:
Tried connecting it to Kies (computer doesn't even recognize it)
Tried putting into Recovery Mode (unresponsive)
Tried putting into Download Mode (unresponsive)
Switched chargers (unresponsive)
Held power button (beeps, now doesn't do anything)
Held both volume buttons and power button (beeps then quickly flashes samsung logo)
Cleaned off some of the micro usb lint with a tooth pick (coincided with the stopping of continuous beeping, not sure if it caused it)
What I think it could be:
Faulty power button (this is what I thought it was, but now it's not vibrating)
Faulty battery (I kept draining to 0%, but if this is the problem, it doesn't explain the phone not displaying anything when it's connected to a charger w/o battery inside)
Faulty usb charging port (I've heard it sometimes causes vibration problems. wouldnt explain the restarting).
Fried motherboard (phone has had some water damage, but I'm not sure if it's the MOBO, considering its symptoms)
HELP WOULD BE GREATLY APPRECIATED.
Not Alone
hey, this isnt really an answer, but maybe something to bump this up. Mine went last night.... won't boot, won't charge... goes into download mode but no matter how many times i switch cables, install Samsung drivers, install Keis, or anything imaginable- i cannot get it to communicate with my PC. if i could i would be able to fix this problem.
i really hope that someone will take a look at these issues and give some input. my call to Samsung was useless, i wasted hours with redundancy. I bought the phone used off Ebay in mint condition... have taken it apart and cleaned it with no avail. i fear that soon the battery will be dead and there's no way to charge it. sucks. Samsung really should recall/replace this because so many people have similar issues. whether it's the USB Flex or the battery or the motherboard they should be responsible. looks like ill be getting a nexus 4 afterall.
please let me know if you figure anything out.
sluchy523 said:
BACKGROUND:
At first, it just started turning off for no reason (probably a month and a half ago).
Then this week, it would start to randomly turn off, and start vibrating constantly when charging. After fiddling with the buttons, it would eventually find itself into download mode and then later turn itself on.
NOW:
Monday morning, after several days of draining the battery to 0% (due to me solely charging it for an hour a day), the phone went dead. Then, that night, upon trying to charge it and turn it on, it remained stuck on a black screen. After taking out the battery, it would continuously beep while still connected to the charger. As soon as I put in the battery, it would become COMPLETELY unresponsive, with and without the charger. After fiddling with it for over an hour, I put it down and slept, leaving the battery and charge in the phone.
Tuesday morning, I clicked the power button, and the phone flashed to the lock screen. It displayed it was at 0% battery, but I think it showed a charging sign. I used the phone for almost 2 minutes, checking my texts, before it again went completely black. The phone became completely unresponsive (no beeping or anything, regardless of anything I did). I connected it to a wall charger again, and left it there for the entire afternoon.
Then when I picked it up at around 6 o clock, I discovered that the continuous beeping stopped, and it would only beep after holding the power button for around 5 seconds. It could beep regardless of whether the battery was out or not.
After charging it all that night, I found I could make it flash the Samsung logo for a fraction of a second after holding down both volume buttons and the power button. I looked it up, and supposedly it brings you to recovery mode, but I believe my phone is switching off immediately after bringing up the logo.
At around 12, Tuesday night, I again decided to hold down the power button (just to reassure myself of it still somewhat functioning), and it powered on for around ten seconds (!!!) . It got all the way to the end of the pink loading bar screen, but then beeped and restarted. The second time, it lasted only around three seconds, without even getting to the loading bar screen, before powering off. It became completely unresponsive afterwards, no beeping, regardless of where it was charging and whether the battery was in or not.
Wednesday morning (today), after having left it charge all night, the phone still was completely unresponsive. I then left it to charge the entire afternoon (until now), and it was still completely unresponsive. I took it apart and played around with the power button, but it didn't seem to be stuck. I've now put it back together and leaving it connected to the wall charger once again.
What I've Tried:
Tried connecting it to Kies (computer doesn't even recognize it)
Tried putting into Recovery Mode (unresponsive)
Tried putting into Download Mode (unresponsive)
Switched chargers (unresponsive)
Held power button (beeps, now doesn't do anything)
Held both volume buttons and power button (beeps then quickly flashes samsung logo)
Cleaned off some of the micro usb lint with a tooth pick (coincided with the stopping of continuous beeping, not sure if it caused it)
What I think it could be:
Faulty power button (this is what I thought it was, but now it's not vibrating)
Faulty battery (I kept draining to 0%, but if this is the problem, it doesn't explain the phone not displaying anything when it's connected to a charger w/o battery inside)
Faulty usb charging port (I've heard it sometimes causes vibration problems. wouldnt explain the restarting).
Fried motherboard (phone has had some water damage, but I'm not sure if it's the MOBO, considering its symptoms)
HELP WOULD BE GREATLY APPRECIATED.
Click to expand...
Click to collapse
It may be your battery, u need to remember why they tell u not to run the phone that way, the batteries our phones run need to maintain a certain charge in order to work correctly, if like u said u only charged it an hr or so a fah for over a week and drained completely more than once u may have rendered ur battery unable to hold a charge, in effect not allowing the phone to run its boot process, I would try a new battery, because beyond that the only other logical explanation is a hardware failure, stuck power button wouldn't render the device unresponsive only when the battery was put in like that, it would bootloop, have u ever just held ur power button in? The phone vib an shuts down a. Vib again n shut down, not become unresponsive, I would try a new battery, and if it works, respect the charge lol
Sent from my SGH-T989 using xda premium
I would agree, seems to be the battery. I bought 2 batteries and a 110V charger on eBay for $30. They don't have the NFC antenna in them but I've never missed it. Not only that but charging that way saves the wear and tear on the USB port.
T989D
latest CM 10.1 nightly
latest Uber nightly
My Idea
Follow the procedure on this website
galaxys2root.com/t-mobile-galaxy-s2/how-to-unroot-t-mobile-galaxy-s2-jelly-bean/

Random reboot hard bricked my Robin

May be unrelated but updated to the latest nightly of Lineage, ran into the camera issues and got some random reboots. Sent an email, and then put it in my pocket, pulled it out a few minutes later and it wouldn't turn on. Have done the hold down power and volume down button to no avail. Used the USB cable to hook it to the laptop, see it in QDLoader 9008 mode. If I hold down the power button and the volume down button I can see it disconnect and reconnect but it never turns on or shows anything on the screen.
Spent a few hours googling it and looks like you need some hardware specific files to the QFIL method, which I can't find. So is this device toast? Was really enjoying the device and so sad that it died after only using it for about 1.5 months.
**UPDATE**
So the leave it plugged in to the laptop overnight trick didn't work. So I took the phone a part, when it's in this mode it seems like there is is still power to system. I left it open until the battery died, and the regulation circuit cut power. Then plugged it in the laptop(although a charger would probably work). Let it charge for 10min and it came back. Seems like it get stuck somewhere in the boot and needs to be reset, but without a removable battery you can't cut power. So if anyone runs across.this, leave it disconnected overnight(or maybe longer) until what ever state it is in kills the battery. Then plug it in and it may come back. My booted after being plugged in for 10min and turning it on using the power button
So I have the same problem with my device and am thinking about doing the same thing. What tools do I need in order to perform this?
I also have the same problem, is there any help?
coll0412 said:
**UPDATE**
So the leave it plugged in to the laptop overnight trick didn't work. So I took the phone a part, when it's in this mode it seems like there is is still power to system. I left it open until the battery died, and the regulation circuit cut power. Then plugged it in the laptop(although a charger would probably work). Let it charge for 10min and it came back. Seems like it get stuck somewhere in the boot and needs to be reset, but without a removable battery you can't cut power. So if anyone runs across.this, leave it disconnected overnight(or maybe longer) until what ever state it is in kills the battery. Then plug it in and it may come back. My booted after being plugged in for 10min and turning it on using the power button
Click to expand...
Click to collapse
So this worked for your hard bricked phone? And you had no more issues after?

Battery too low. Charge for a while before powering on

Hi,
I just installed a new battery into my OnePlus 3, because the old one was starting to bulge and push against the screen.
After installing the new battery and attempting to boot with the charger plugged in, the phone won't boot past the 1+ screen.
It buzzes, shows the 1+ screen for a while and then goes dark and buzzes again etc. If I pull out the charger cable it goes dark instantly.
If I hold down the volume down button and the power button for 30sec it boots and shows a warning screen saying "Battery too low. Charge for a while before powering on". However, this screen only shows for a split second before going dark again.
I added a photo of the same screen on a different phone that I found online as the screen really disappears within a few milliseconds on my phone:
https://ibb.co/zJJ4fMf
Does anyone know what this means? Is the new battery faulty and should I return it? Is there something I should do to reset something? Can it be that it is simply not properly connected?
Any help is welcome! Thanks
you should leave the phone and let it charge until 100%
kallum7 said:
you should leave the phone and let it charge until 100%
Click to expand...
Click to collapse
I let it charge all night, but obviously it is not charging...
is there anything important on the device
Just opened up my phone to put the old battery back in and that's when I saw that the connector had gotten loose. :silly:
There were some small pieces of tape on the original battery's connector that are supposed to hold it in place, so I fabricated my own out of Scotch. Hopefully that will hold the connector in place.
ok get back to me because i want to know if you have solved this

LG G4 Just killed itself. Plugged in and no charging screen or charge LED

I put my phone down on the table and left. I came back and pressed the power button and it did nothing. I thought that was weird and held the power button and it didn’t turn back on. I then plugged in the device and still nothing happened. No charging LED or charge screen or anything. It is just black. I took the battery out and held the button for 30 seconds and put it back and plugged it in and nothing. I got out my USB volt meter and noticed that it is drawing power from the charger but the screen isn’t lighting up and the charge LED isn’t lighting up for whatever reason. I put in another battery I had laying around and nothing changed. Is this phone just dead or is there still hope in recovering it. I have no idea why it killed itself for no reason. Any ideas to try that can fix this?
jimmysofat6864 said:
I put my phone down on the table and left. I came back and pressed the power button and it did nothing. I thought that was weird and held the power button and it didn’t turn back on. I then plugged in the device and still nothing happened. No charging LED or charge screen or anything. It is just black. I took the battery out and held the button for 30 seconds and put it back and plugged it in and nothing. I got out my USB volt meter and noticed that it is drawing power from the charger but the screen isn’t lighting up and the charge LED isn’t lighting up for whatever reason. I put in another battery I had laying around and nothing changed. Is this phone just dead or is there still hope in recovering it. I have no idea why it killed itself for no reason. Any ideas to try that can fix this?
Click to expand...
Click to collapse
Connect it to your pc and watch the device manager while doing so. You will likely notice a new device QHSUSB_BULK beneath other devices . If that's the case (99% chance it is) then you got catched by the ilapo ( see my signature for bootloop fix thread for workarounds which MAY work)
Sent from my OnePlus 6T using XDA Labs

Daughters phone is completely dead, will not switch on. Please help

I have had it plugged in all night, and tried the following ;
Hold power for 1 minute
Hold power and volume up for one minute
Hold power and volume down for one minute
Hold all 3 buttons for one minute
None of these worked.
I have plugged it into a PC but there is no connection.
Is there anything else I can do?
*EDIT* Fixed it! https://forum.xda-developers.com/showpost.php?p=83649851&postcount=7
Its dead phone. What do you want some magic to turn it on? If it dosnt want to turn it on its dead phone and you cant do anything about it.
You might be right, but in the 20 years of owning mobile phones I have never had one that simply "died" before. I've ordered a new charge port as I think it might be to blame.
TylerDurdenK said:
You might be right, but in the 20 years of owning mobile phones I have never had one that simply "died" before. I've ordered a new charge port as I think it might be to blame.
Click to expand...
Click to collapse
Pressing pwr + volume down or volume up won't turn on device.
You're not saying if device can enter to recovery nor fastboot or If your device is unlocked or not or if you have some screen as the logo or if you have some vibration, some led blinking, or if you let it charging with screen on (it must be screen burning) or if device was off while charging...
The phone has no sign of life. No led, no screen on. Nothing.
TylerDurdenK said:
The phone has no sign of life. No led, no screen on. Nothing.
Click to expand...
Click to collapse
Well, there is not much you can do here, it could be a damage at the hardware level, probably in the port charger or at emmc/motherboard.
Also the overcharging or the kernel panic produced for some overheating can make that device won't boot.
The only you should try at software level is this https://c.mi.com/thread-1479882-1-0.html
I fixed it! After replacing the charging port it still didn't work.
However I read somewhere that disconnecting then reconnecting the battery connector inside the phone would work so I tried that and it worked.
Phone back working fully.

Categories

Resources