[Q] N4 doesnt turn on. Red Light blinks once. - Nexus 4 Q&A, Help & Troubleshooting

Hello.
When I try to turn on my N4, I hold power button, and after about 10 seconds Red light blinks (just once, if it's connected to USB that 1 blink last for 3 seconds, if connected to wall, it's just quick 1 blink. If it not connected anywhere there is no action at all, it just stays dead, no blinks, nothing). Same if I try to go in bootloader by holding volume down+power.
This happened after I successfully installed CM12, with no errors. Then I rebooted my phone, and it just stayed black as it is now. Battery was around 25~30% that time, and phone was connected to USB.
Did I bricked my phone totally? I am now trying to charge it up already for 1 hour... but it nothing changes.
I have searched here for similar problems, but couldn't find solution...
Edit: Charging already for 10h+ , still same..
Edit2: I removed battery, reconnected after a while, still same problem.
So I tested it with multimeter, it says 2.6V, but fully charged must be 3.8V. Could this be a problem? I was charging it for whole night.
Edit3: I just got new battery . But it looks the same.. phone doesn't boot up.. same red light blinks once.. so.. its my phone is dead? I can't believe that...
When I connect to PC usb, there are unrecognized deviced called "QHSUSB_DLOAD".

easy fix
Hold down the power button and the volume down button at the same time until phone reboots. If you see the little android no need to worry just let go and wait for your device to reboot on its own. This is not a factory reset it's just like restarting your device. :good:

zelexon said:
Hold down the power button and the volume down button at the same time until phone reboots. If you see the little android no need to worry just let go and wait for your device to reboot on its own. This is not a factory reset it's just like restarting your device. :good:
Click to expand...
Click to collapse
I have tried that many times. Nothing. It's bootloader screen, but I can't get there. Nothing happens. If I keep holding volume down+power it just keep blinking once every ~10 seconds, same if I hold just power button. If phone is not connected to charger, there are no blinks at all.

I removed battery, reconnected after a while, still same problem.
So I tested it with multimeter, it says 2.6V, but fully charged must be 3.8V. Could this be a problem? I was charging it for whole night.

Cracken6 said:
I removed battery, reconnected after a while, still same problem.
So I tested it with multimeter, it says 2.6V, but fully charged must be 3.8V. Could this be a problem? I was charging it for whole night.
Click to expand...
Click to collapse
I had the same problem a year ago, I tried to remove the battery, charging all night, and other solutions that I found online and no one worked.
Finally I found here in XDA a user with the same problem and his solution was charger the phone with a wireless charger, a friend of mine has one and I put the phone to charge and after a few minutes the screen goes on and the phone was charged, then I press power button and the nexus run again.
Hope this works.
Sorry for my bad English, I'm from Spain.
Good luck.
(I bought a wireless charger in case it happen again)

I don't know anyone with wireless charger. I already ordered a new battery, and then I probably will get wireless charger also. Ty.
But this problem is very weird if you think so.. I think it happened because of many aspects together:
1) Battery was already below 30%
2) I pretty regularly charge phone with USB (won't do it again)
3) It was connected to PC USB in same time.
4) I installed CM12 ROM in same time
So main reason I think is USB, that I restarted phone while it was on pretty low battery and with USB connected.. phone restarted and got invalid voltages and couldn't even boot up or charge phone. I also found an article which says, minimum voltage, when phone battery has 0%, it's 3.0V, so I was below that.. it just screwed everything and battery died. Well, I am not sure for 100% that it's battery fault, but I hope so, I really love my N4 and still wanna use it for long time, I hope it's not dead phone, just a dead battery. Lets see! I will update this thread , when I get my new battery (less than month probably).
Sorry, my english is also not perfect. I am from Latvia.

I was playing when it happened to me. The phone was very very hot and the battery was around 70%. When I put in the wireless charged and I can reboot the phone the battery was at 65%, so it had charge but the phone won't boot.
I charge my phone almost every day, sometimes with AC, others with USB (plugging to PC) or wireless that depends of my needs
I hope you can fix it. Good luck.

Btw. Do you know if battery charges with wireless charger, if it's removed from the phone?

Don't think it does, since the receiving coils for wireless charging are located just behind the glass back.

Flipz77 said:
Don't think it does, since the receiving coils for wireless charging are located just behind the glass back.
Click to expand...
Click to collapse
The battery will charge with a NCF Charger
Major Issue Google
This "Nexus SOD" issue is showing up on many sites across the Internet. I have multiple "Nexus" devices including 2 Nexus 4, 1 Nexus 5, 2 "Nexus 7 2013". It suddenly started out of the blue with one of my Nexus 4 phones. Symptoms included rapid battery discharge. I am using Lollipop 5.1 on all devices. There are many claims as to the cause, Hardware Motherboard, Power Button etc. Others claim it is "Software Related" or App Related. The problem effects Nexus 4 and Nexus 5 phones. I have ordered a new motherboard for my nexus 4 device and see if that makes a difference.
This problem should warrant a "Major Android Lollipop Crisis Team" by Google to investigate the cause and let us know what it is and what Google is doing to solve the problem before moving to announce "Android M". This issue needs to brought up and actively pursued at the upcoming "Google I/O Conference" by the strong Android Developers Groups to press for "Formal Action"

charging method
Cracken6 said:
I have tried that many times. Nothing. It's bootloader screen, but I can't get there. Nothing happens. If I keep holding volume down+power it just keep blinking once every ~10 seconds, same if I hold just power button. If phone is not connected to charger, there are no blinks at all.
Click to expand...
Click to collapse
I had this problem a long time ago and my fix worked for me after doing a little research it seems like this is a case called battery total discharge. The fix was simply to charge your phone using the wall adapter that came with your phone (I still use my old apple cube wall thing) and to wait for the red light to appear then wait about ten minutes before trying to reboot.

I just got new battery . But it looks the same.. phone doesn't boot up.. same red light blinks once.. so.. its my phone is dead? I can't believe that...
When I connect to PC usb, there are unrecognized deviced called "QHSUSB_DLOAD".

Maybe this video will help you: Oh I´m not allowed to post links until now.
Just search for: - Nexus 4 "red light of death" fix - at youtube.
Hope it will help

AndRe5575 said:
Maybe this video will help you: Oh I´m not allowed to post links until now.
Just search for: - Nexus 4 "red light of death" fix - at youtube.
Hope it will help
Click to expand...
Click to collapse
I have checked all kind of videos there. Also that one. Most of these cases are related to battery, but it seems in my case it isn't. I just searched for QHSUSB_DLOAD unrecognized device, all posts says it means phone is bricked... But cmon, how? I installed CM12, successfully, without any errors, then just restarted phone, and its dead...

Cracken6 said:
I have checked all kind of videos there. Also that one. Most of these cases are related to battery, but it seems in my case it isn't. I just searched for QHSUSB_DLOAD unrecognized device, all posts says it means phone is bricked... But cmon, how? I installed CM12, successfully, without any errors, then just restarted phone, and its dead...
Click to expand...
Click to collapse
Did u try booting the phone without battery by connecting to wall charger and what about flashing stock ROM via PC
Also check that the power button works
This case should be solved

as9333 said:
Did u try booting the phone without battery by connecting to wall charger and what about flashing stock ROM via PC
Also check that the power button works
This case should be solved
Click to expand...
Click to collapse
Just tried booting without battery, and connecting to wall. Same - red light blinks once, after I hold Power button or Power+Volume down for about 15 seconds. If I keep buttons pressed, it just repeats every ~15 seconds.
Power buttons works fine.
After I checked that Device manager thing in google.. it looks very bad.. phone is dead.. probably need to change motherboard. I am just shocked, how this could happen... I didn't receive any errors during CM12 installation. Phone just instantly died after restart.

Related

N4 Bricked!! No responses! Just red led when I plug in to AC/USB

Hello guys, first than nothing, sorry for my bad english, isnt my native languaje. I got this problem yesterday in the night of the new year!!!!!!!:crying: I was rooted, using Xylon and Faux Kernel, but the problem appears from nothing!!
The first thing that I detected was, the phone take a WHILE!!! for charge.... then, out of the power, the phone get overheating and discharging so fast, never in life that happends, when N4 got discharged i try to turn on again but download mode appers in the screen, finally I get in the recovery, then I did a wipe cache/system and factory reset. Install again the Xylon... but when phone finally turns off, when I plugged in to AC absolutelly nothing happends, the led just turn in red, and the N4 dont start in FB, dont get charge, dont do a sh*t !!!! I conect it to the PC but also nothing appends, the N4 doesnt appear in my device list.
So... my N4 its broken?
There was possibly something wrong with the kernel and rom combination that caused your phone to overheat. I think eventually the heat may have damaged your hardware. Sorry but, if something was wrong in the first place it was not a good idea to reinstall the same thing that was causing the problem, if I were you I would have flashed a stock ROM. My only advice now would be to RMA it and pray
EDIT: I found this if it helps at all:
If you are unable to access the settings menu of your device, you can still reset your phone by performing a Hard Reset. Here are the instructions:
If your phone is on, power it off.
Press and hold Power until the device powers on, then immediately press and hold Volume Down (while still pressing Power). You will see the word Start with an arrow drawn around it.
Press Volume Down twice to designate Recovery mode.
Press Power to restart into Recovery mode. You will see an image of an Android robot with a red exclamation mark.
While holding down Power, press Volume Up.
Use the volume keys to scroll to "wipe data/factory reset" and press Power to select it.
Scroll down to "Yes - erase all user data" and press Power to select it.
Note: If at any point during the above steps your phone becomes unresponsive, you can restart it by holding down the power button for several seconds.
Before you try anything else, try and leaving it plugged in for a while and then try turning it on. Or leave it plugged in to a computer then try turning it on.
joshnichols189 said:
Before you try anything else, try and leaving it plugged in for a while and then try turning it on. Or leave it plugged in to a computer then try turning it on.
Click to expand...
Click to collapse
Try this. I haven't had it happen to me, but I do have a friend who this exact same thing happened and he thought it was bricked. He left it plugged into AC over night, and in the morning it would turn back on.
First than nothing, thanks for reply, I appreciate your intentions to help me.
I will leave it charging all the night and while Im working too... I hope after that, the phone at least turn on.
I dont install the STOCK ROM because I dont have it in my internal memory and I was in my girlfriend house, the night of the 12/31/12, there is not much to do...
I did the same post, but a little bit more explained
Its here: http://forum.xda-developers.com/showpost.php?p=36165434&postcount=2708
(In case you want to know all details about this problem..)
And Thanks againf for your help!
got the same ****
have a look here
http://forum.xda-developers.com/showthread.php?t=2050811&highlight=bricked+
we are not alone with that problem
some more people have the same problem
i did not even overclocked or benchmarked..
read this post, maybe its helpfull for you
http://forum.xda-developers.com/showthread.php?t=2011328
battery
It could be bad battery, how long did bought of you had working phone, how many times did you charge?
Did you use out of the box charger?
Did you have problems with usb jack?
kibox said:
It could be bad battery, how long did bought of you had working phone, how many times did you charge?
Did you use out of the box charger?
Did you have problems with usb jack?
Click to expand...
Click to collapse
I bought it the 13/nov..
I received it 29/nov.
I ALWAYS use stock charger, only 1 time i try to charge it in my car, but it was less thant 5 minutes, I decided dont charge with the car because the energy variates when I accelerate...
After that, I use my phone quiet normal.
I had this problem with my nexus 7. I think my battery died all the way and it couldn't charge. The stick charger wasn't doing anything. But I plugged it into my computer for a few minutes and tried turning it on. Then when the loading screen appeared I ran it to it's stock charger and charged it to full. Your battery probably died. Try different combinations of ways to get it to take a charge. Just long enough to turn on then plug it into its charger. Though the overheating could have fried it
Sent from my SPH-D710 using xda premium

Battery Hit 0%, Won't Turn Back On

So I was using the new Hangout app to video chat, ignored the 4% battery warning, and eventually the phone shut off due to low battery.
After that I attempted to charge it all night, using various USB cables, wall units, the charging orb, and without, and a PC, and nothing happened after leaving it all night.
Holding the power button does nothing, trying to load the bootloader nothing, and holding both volume buttons and power does nothing. Simply unable to boot it or turn it anyway on.
Plugged into the PC also shows nothing.
I called google and requested an RMA, but I'd like to see if there was a way to backup some pictures from it.
Is there any known solution for this? I feel like the battery died beyond the point of no return or something.
Sinfamy said:
So I was using the new Hangout app to video chat, ignored the 4% battery warning, and eventually the phone shut off due to low battery.
After that I attempted to charge it all night, using various USB cables, wall units, the charging orb, and without, and a PC, and nothing happened after leaving it all night.
Holding the power button does nothing, trying to load the bootloader nothing, and holding both volume buttons and power does nothing. Simply unable to boot it or turn it anyway on.
Plugged into the PC also shows nothing.
I called google and requested an RMA, but I'd like to see if there was a way to backup some pictures from it.
Is there any known solution for this? I feel like the battery died beyond the point of no return or something.
Click to expand...
Click to collapse
Try charging it and see what happens. Good luck
Sinfamy said:
So I was using the new Hangout app to video chat, ignored the 4% battery warning, and eventually the phone shut off due to low battery.
After that I attempted to charge it all night, using various USB cables, wall units, the charging orb, and without, and a PC, and nothing happened after leaving it all night.
Holding the power button does nothing, trying to load the bootloader nothing, and holding both volume buttons and power does nothing. Simply unable to boot it or turn it anyway on.
Plugged into the PC also shows nothing.
I called google and requested an RMA, but I'd like to see if there was a way to backup some pictures from it.
Is there any known solution for this? I feel like the battery died beyond the point of no return or something.
Click to expand...
Click to collapse
It is really drained then... You can fix it by Manually applying current to it so it can charge a little. That's the only fix I can think of. And if I remember correctly there is a thread here on XDA which demonstrates the procedure.
Charge it for 5 mins, unplug it, then plug it back in.
I heard an answer to this somewhere, if you browse the N4 forums for a while you might find it, bit I think it was charge it for a few hours via normal USB, then hold power for 30 seconds to a minute? You might need to charge it for a few hours again after and hold power for 30s again. Good luck
Sent from my CM10.1 Nexus 4
Tom540 said:
I heard an answer to this somewhere, if you browse the N4 forums for a while you might find it, bit I think it was charge it for a few hours via normal USB, then hold power for 30 seconds to a minute? You might need to charge it for a few hours again after and hold power for 30s again. Good luck
Sent from my CM10.1 Nexus 4
Click to expand...
Click to collapse
Same thing Happened to me.. it died overnight and I plugged it in in the morning and now I checked a few hours later and it didn't charge! Wont turn on, I've tried various button combos and different chargers and cables.. Help!!!
I'm alive! Phew. So After trying all the combos with it plugged in.. I eventually waited an hour or 2 hoping it would charge.. and then tried the same thing after unplugging it ( after giving up and running out of ideas). With the phone unplugged I did power+volumne down and within a few seconds I felt a buzz and got into the bootloader.. then I rebooted. Phone booted up but battery was at 0 so it shut off instantly. But now when i connected the charger back I got the battery icon - Yay, it started charging!
This worked for me so just putting it out there in case it can help someone else
vikramkhalsa said:
I'm alive! Phew. So After trying all the combos with it plugged in.. I eventually waited an hour or 2 hoping it would charge.. and then tried the same thing after unplugging it ( after giving up and running out of ideas). With the phone unplugged I did power+volumne down and within a few seconds I felt a buzz and got into the bootloader.. then I rebooted. Phone booted up but battery was at 0 so it shut off instantly. But now when i connected the charger back I got the battery icon - Yay, it started charging!
This worked for me so just putting it out there in case it can help someone else
Click to expand...
Click to collapse
Yea, I got it working the same way also, why is it so iffy? The phone shouldn't even need a battery to boot if it's plugged in.
It should be able to bypass the battery power check to USB, and charge the battery in the meantime.

[Q] n4 is completely unresponsive (dead)

So this is what happened:
the phone discharged fully and i connected it to charge. then i got a flashing red led. seeing this as a bad omen i tried to turn my device on - no luck - it wasn't responding.
i unplugged the charger and plugged it back in and again the same result, then again..... and i got a solid red light. so after a few times of messing about with it , trying out a few sources of power and such i got it charging (the battery logo appeared). The charging lasted for ~30 sec and it went black.
So after that the n4 is completely unresponsive. No flashing leds no backlight on screen, NOTHING.i tried out a few chargers and cables and beside those i used a genuine n4 charger (it's 100% working - i tried to charge another device). i left it there for the whole day to charge thinking that maaaaaby the battery ran to a complete 0 and i just need to give it time, as you probably guessed it, that did nothing.
In fact, i think the phone is not charging at all. The reason i think so is because the wall charger is emitting a faint high-pitch squeal regardless of the fact that the phone is connected (it should be squealing only when it's plugged into socket and the phone is not plugged in it)
so TL DR:
n4 is completely dead, no signs of life. The things that were tried:
a handful of chargers and cables that are 100% working on other devices
trying to boot with a combination of volume buttons pressed
holding the power button for 60 sec. while plugged in
prolonged charging (~7 hours)
verbal threatening to sell the damned thing if it's a serious problem
so that's that. i should get my tools back from a friend on monday. i'll try to take it apart, maby there's a loose connector here or there or something. Any ideas what i could try before that?
Some searching around the forums wouldn't hurt. Try this for example.
kalopop said:
Some searching around the forums wouldn't hurt. Try this for example.
Click to expand...
Click to collapse
thanks for the link, that seems to be worth a shot.... i'll be able to take the phone apart on monday, that's the earliest i will be able to try it. i was wondering if there is anything i can do until then to remedy the situation. I mean i'm really getting a kick out of my old sony erricson k300 but i kinda prefer the nexus and would prefer to fix it asap.
ok i fixed it
i used a 3v source and held the contacts manually for 5 min. that returned it to the red blinking led state and after leaving it to charge for 5 min it returned to the battery icon on screen. thanks for the info again.

[Q] Yet another Nook not holding charge and hanging at the boot screen

Google shows me I'm not even remotely alone in my trouble, but with the way tech works every problem is at least a little unique. I'll give a rundown of what I've down and whats happened up to this point.
First, I bought it used from Amazon. Very Good condition from a seller with 99% or whatever satisfaction. I think I've bought from them before, actually. So while this isn't a new device, I know I wasn't scammed. It was also factory reset and I'm assuming it wasn't rooted, though admittedly I have no idea how to check on a Nook.
Second, when it arrived the first thing I did, naturally, was turn it on. Plugged in the Nook to my computer, it booted up just fine, I registered, and loaded one a few ebooks with Calibre. The books opened up, they looked great, we were golden.That was when I noticed the battery indicator in the top didn't have a number on it. It was solid black with a ?. I thought that was weird, so I tried rebooting the device. That was when I was hit with an update, it downloaded and installed then rebooted. Here's when it all went to crap.
Third, I can get into the device. If I hold the power button and wait a bit it takes me to the homescreen where I'm met with a 0% Battery warning saying to plug it in or the device will shut off. Waiting for this message do disappear seems to give me normal access to the device, except the battery indicator is still just ?. This still happens now, after about 10 hours of charging.
Fourth, plugging in the device to anything be it wall charger or computer causes the device to reboot back to the Read Forever screen. Even if the device is completely powered off. It just hangs at the boot screen and goes nowhere. If I hold down the power button, or power + n, all it does is flash the screen to blank and then goes back to the boot screen. If I unplug it and hold down power it goes back to the previous problem.
That's everything I know. I seem to have the proper Nook micro USB cable, but the adapter is a little white Chinese looking thing so I know it's not the official. So I've switched to my Nexus 5's micro USB cable since I know it works and plugged it into my PC. The charging indicator is on, but thanks to my minor colour blindess I'm having a hell of a time deciding if it's orange or green. It's either green, orange, or yellow for sure though. Right now I'm going to go to sleep, let it charge through the night. I've had a similar problem happen to my Nexus 7 where it wouldn't turn on, and a nightlong charge seemed to fix it so who knows, this thread might be useless in the morning.
In the more likely event that it's still very useful, any help would be appreciated. And please try to keep it simple. I'm not new to technology or Android in phone/tablet form and all the associated hairpulling, but this is literally the first time I've ever dealt with an ereader. I'd like to get this solved at home, since I don't have a warranty and the price to ship this thing back to the seller would make this end up costing more than a new one would have since I'm Canadian and the seller isn't.
Thanks in advance.
Edit: After a night of charging, still 0%.
This, unfortunately, is the sign of a factory buggy (for lack of a better word) device. I doubt there's any hope. Sorry about that.
Keep me updated.
I think that there might be software to blame. My Motorola Defy also had that sort of weird battery behaviour after one of factory resets. Since then I have to install a patch written by one of XDA members every time I make a reset. But it works. Unfortunately I have no idea if it can be helpful in this case. (I'm refering to this post: http://forum.xda-developers.com/showpost.php?p=34590229&postcount=1 )
Nonetheless I would seek some slight hope in disconnecting and reconnecting the battery.
Alright, so. Progress report:
I tried the 8 failed boots trick to reset the device back to the original firmware. This brought me back to square one. The device worked, I could load books on to it via USB, and read them. But the battery indicator was just a question mark. Going into the settings revealed that the battery was at 100%, or at least claimed to be. But hey, I could read on it so I figured I was alright.
Now, a couple days later, I just woke up to find it with a new problem. Pressing the little N button to wake it up isn't doing anything. It won't respond to holding the power button down and my computer wont pick it up when it is plugged in. The charging light still comes on but I don't know how much it can be trusted.
I'm going to let it charge for a bit, but I'm beginning to think the battery is just toast.
Shodex said:
Alright, so. Progress report:
I tried the 8 failed boots trick to reset the device back to the original firmware. This brought me back to square one. The device worked, I could load books on to it via USB, and read them. But the battery indicator was just a question mark. Going into the settings revealed that the battery was at 100%, or at least claimed to be. But hey, I could read on it so I figured I was alright.
Now, a couple days later, I just woke up to find it with a new problem. Pressing the little N button to wake it up isn't doing anything. It won't respond to holding the power button down and my computer wont pick it up when it is plugged in. The charging light still comes on but I don't know how much it can be trusted.
I'm going to let it charge for a bit, but I'm beginning to think the battery is just toast.
Click to expand...
Click to collapse
Hi, I just went through something similar 48 hrs ago. The NST is frozen, stuck at reading forever. Before that, the battery icon had a '?', and the device info said battery status was "unavailable". Plugging in to charge had a solid green light.
I read around, and what worked was to open the case, and disconnect the battery. Google said to wait 30 mins, I waited 1. Re plugged in, put it to charge. The LED turned to orange, and 15 mins later, the NST booted. All good now.
Total cost: set of TORX scredrivers (you need a T5).
ghane0 said:
Hi, I just went through something similar 48 hrs ago. The NST is frozen, stuck at reading forever. Before that, the battery icon had a '?', and the device info said battery status was "unavailable". Plugging in to charge had a solid green light.
I read around, and what worked was to open the case, and disconnect the battery. Google said to wait 30 mins, I waited 1. Re plugged in, put it to charge. The LED turned to orange, and 15 mins later, the NST booted. All good now.
Total cost: set of TORX scredrivers (you need a T5).
Click to expand...
Click to collapse
Okay, so. No T5 but I managed it with a teensy weensy flathead. Unlugged the battery, left it that way for about 20 minutes, plugged it back in, then left it to charge. 15 minutes later I came back and viola, it works and the battery is reporting it's remaining juice. Thank you very much, that seems to have done the trick.
You know, this might be the first time I ever managed to have a tech problem solved entirely by a forum.
Shodex said:
Okay, so. No T5 but I managed it with a teensy weensy flathead.
Click to expand...
Click to collapse
You realise that that voids the warranty you get from XDA?
Shodex said:
You know, this might be the first time I ever managed to have a tech problem solved entirely by a forum.
Click to expand...
Click to collapse
I knew the Internet would be useful for something, one day
ghane0 said:
You realise that that voids the warranty you get from XDA?
Click to expand...
Click to collapse
It's a used device, there was never a warranty.
Looks like the problem is fixed. Great! Sorry I was inactive.
Later!

Nexus 7 won't charge/power on/can't access fastboot or bootloader

Hi guys,
My Nexus 7 (2012) turned off(not properly) when the battery level was low and won't power on. I tried a battery from a working tablet and tested my battery in another tablet. It seems like the issue is somewhere else.
These are the things I tried:
- leave it for a couple of hours charging (no battery sign at all)
- hold the power button with/without the volume levels while it being both connected and disconnected.
- tested my battery in another tabled and put a fully charged battery from another tablet
- made sure that the battery is connected
There was one more thing I tried - to press the Power button with no battery inside but the tablet being connected to a laptop via the USB cable. One could hear something like a boot noise coming from the tablet (doesn't happen when the battery is inside)
In December, 2015 I installed a Custom ROM with android 5.1.1 which I found here http://forum.xda-developers.com/nexus-7/development/android-6-aosp-grouper-t3268172/ (the thread was renamed and is now about the Android 6 update) The tablet worked fine for these 3 months but one day when I was checking my email it went off and won't respond to any actions.
Could you please help me to fix it? I'm just not ready to give up on this tablet. Thanks!
Both you and i, same model, essentially, the same circumstances. I also tried every method you mentioned as well. Even down to the flashing of a rom. Same results. I even tried "jump starting" the battery. Not wanting to give up on it. It sits in my closet like that boy in A.I at the bottom of the ocean, waiting... I know that is not the reply or help you were looking for. Just so you know, you are not alone..
Sent from my LG-H345 using Tapatalk
ge1026 said:
Both you and i, same model, essentially, the same circumstances. I also tried every method you mentioned as well. Even down to the flashing of a rom. Same results. I even tried "jump starting" the battery. Not wanting to give up on it. It sits in my closet like that boy in A.I at the bottom of the ocean, waiting... I know that is not the reply or help you were looking for. Just so you know, you are not alone..
Click to expand...
Click to collapse
Well, that's a good start, at least I am not the only one!
Have you tried to connect your device via USB? My laptop can see a connected device but it can't recognize it and I hear some sounds coming from the tablet when I try to hold the `power` button. This made me think that it can be a display/screen related, so the device works but we can't see it due to the broken screen/display. Don't know how to check that though.
Same here, stock Nexus 7, won't turn on, just switched off one day and won't come back on, have tried everything as suggested above, can't get it to flicker, doesn't even register the power connection with a green light or anything
topmuffinsecret said:
Well, that's a good start, at least I am not the only one!
Have you tried to connect your device via USB? My laptop can see a connected device but it can't recognize it and I hear some sounds coming from the tablet when I try to hold the `power` button. This made me think that it can be a display/screen related, so the device works but we can't see it due to the broken screen/display. Don't know how to check that though.
Click to expand...
Click to collapse
Try replacing the screen, just to check. If that doesn't fix it, at least you have a brand new screen!
I'm currently having the same issue, haven't used it in 6 months and when I tried to turn it on, nothing happens
---------- Post added at 09:39 PM ---------- Previous post was at 09:32 PM ----------
Planters76 said:
I'm currently having the same issue, haven't used it in 6 months and when I tried to turn it on, nothing happens
Click to expand...
Click to collapse
I fix mine,
let it sit on the charger for a hour, then hold down the button for 20 sec
same issue here as well ive had it for about a year and im not able to access anything via my pc google help forums had no answer either, looks like we may be screwed..........
Hi, I just had same issue with my tablet only thing is that I was using it with ~20% of battery, nothing special - browsing the web using chrome, then the screen lit gray and shut off. After that no response either from charger, holding power button for 60+ seconds didn't work either, tried re-connecting the battery, still with no signs.
And then, I tried to plug in the charger and then pressing VolumeDown+Power immediately after connecting the charger. Suddenly got some response, that battery charging icon appeared, and it shows my battery charging, but from 0%. Still waiting to charge a bit until I can try to boot it.
I'll update this post with any news.
EDIT: When I connected my tablet to the charger it had that hissing sound, but after few minutes it stopped.
After 15 minutes of charging I managed to boot my Nexus7 with 7% of charge in it a that moment, It seems to work for now.
Summarry of what I did to solve my problem:
1. Opened the back of the N7 (I used a guitar pick for this) and re-connect the battery.
2. Then plugged in the charger and at the same time pressed VolumeDown+Power, battery icon lit up but went out, repeated step 1, and then step 2 again gave me animated battery charging animation which showed up for like 10 seconds
3. Waited for 10-15 minutes and tried to boot normally. And it works now
MrBratka said:
Hi, I just had same issue with my tablet only thing is that I was using it with ~20% of battery, nothing special - browsing the web using chrome, then the screen lit gray and shut off. After that no response either from charger, holding power button for 60+ seconds didn't work either, tried re-connecting the battery, still with no signs.
And then, I tried to plug in the charger and then pressing VolumeDown+Power immediately after connecting the charger. Suddenly got some response, that battery charging icon appeared, and it shows my battery charging, but from 0%. Still waiting to charge a bit until I can try to boot it.
I'll update this post with any news.
EDIT: When I connected my tablet to the charger it had that hissing sound, but after few minutes it stopped.
After 15 minutes of charging I managed to boot my Nexus7 with 7% of charge in it a that moment, It seems to work for now.
Summarry of what I did to solve my problem:
1. Opened the back of the N7 (I used a guitar pick for this) and re-connect the battery.
2. Then plugged in the charger and at the same time pressed VolumeDown+Power, battery icon lit up but went out, repeated step 1, and then step 2 again gave me animated battery charging animation which showed up for like 10 seconds
3. Waited for 10-15 minutes and tried to boot normally. And it works now
Click to expand...
Click to collapse
Thanks mine was taking forever to charge so I unplugged the battery waited a few minutes and then it worked it charged faster
Sent from my SM-N920V using XDA-Developers mobile app
MrBratka said:
Hi, I just had same issue with my tablet only thing is that I was using it with ~20% of battery, nothing special - browsing the web using chrome, then the screen lit gray and shut off. After that no response either from charger, holding power button for 60+ seconds didn't work either, tried re-connecting the battery, still with no signs.
And then, I tried to plug in the charger and then pressing VolumeDown+Power immediately after connecting the charger. Suddenly got some response, that battery charging icon appeared, and it shows my battery charging, but from 0%. Still waiting to charge a bit until I can try to boot it.
I'll update this post with any news.
EDIT: When I connected my tablet to the charger it had that hissing sound, but after few minutes it stopped.
After 15 minutes of charging I managed to boot my Nexus7 with 7% of charge in it a that moment, It seems to work for now.
Summarry of what I did to solve my problem:
1. Opened the back of the N7 (I used a guitar pick for this) and re-connect the battery.
2. Then plugged in the charger and at the same time pressed VolumeDown+Power, battery icon lit up but went out, repeated step 1, and then step 2 again gave me animated battery charging animation which showed up for like 10 seconds
3. Waited for 10-15 minutes and tried to boot normally. And it works now
Click to expand...
Click to collapse
This helped me get my N7 2012 back up and running, too. Thank you so much!
We are not alone
topmuffinsecret said:
Hi guys,
My Nexus 7 (2012) turned off(not properly) when the battery level was low and won't power on. I tried a battery from a working tablet and tested my battery in another tablet. It seems like the issue is somewhere else.
These are the things I tried:
- leave it for a couple of hours charging (no battery sign at all)
- hold the power button with/without the volume levels while it being both connected and disconnected.
- tested my battery in another tabled and put a fully charged battery from another tablet
- made sure that the battery is connected
There was one more thing I tried - to press the Power button with no battery inside but the tablet being connected to a laptop via the USB cable. One could hear something like a boot noise coming from the tablet (doesn't happen when the battery is inside)
In December, 2015 I installed a Custom ROM with android 5.1.1 which I found here http://forum.xda-developers.com/nexus-7/development/android-6-aosp-grouper-t3268172/ (the thread was renamed and is now about the Android 6 update) The tablet worked fine for these 3 months but one day when I was checking my email it went off and won't respond to any actions.
Could you please help me to fix it? I'm just not ready to give up on this tablet. Thanks!
Click to expand...
Click to collapse
I have done same, Mine is , My son had it and ran it to 0%, charging port was iffy, put new one charging port in this morning, nothing, not even battery DEAD sign, nothing tried power, button / volume trick , I did notice on the power/volume button, there is a 4th, anyone have a clue, cannot find what im looking for to answer that.
I have a smart young co-worker looking at it for me right now.
cdb2643 said:
I have done same, Mine is , My son had it and ran it to 0%, charging port was iffy, put new one charging port in this morning, nothing, not even battery DEAD sign, nothing tried power, button / volume trick , I did notice on the power/volume button, there is a 4th, anyone have a clue, cannot find what im looking for to answer that.
I have a smart young co-worker looking at it for me right now.
Click to expand...
Click to collapse
Probably this post can give you some ideas how to recover your device.
AndDiSa said:
Probably this post can give you some ideas how to recover your device.
Click to expand...
Click to collapse
Honestly, I do not think it is the battery, I can see the Charge signal, and the Battery is showing 1,784 VDC tested unplugged and disconnected, my smart young co-worker seems to think POST is failing, I still never see a "Charging" indication.
Does anyone know , Is there a fail safe, say the battery is disconnected, and usb charger is plugged in, will i just see all 5VDC at the sub port, ?
I never see a screen flicker, DEAD battery sign, nothing.
co-worker, tried some things that made sense when he explained what he did, I would have to agree with him.
Now it is rooted, 4.x something I forget, Never went to 5.x did once early and did not like it, Back stock, ran 2 days no issues, Rooted again, 4.x still do not remember, worked great 3-4 months, Sons ran it to DEaD and that was it, put it up for 90 days or so, wife got new tablet, kids have Fire each, and here i am tabletless, CRAP, did not want to throw to much $$$$ at this thing, nor did I want to buy a new one.
Samsung Tablet here we come.
any body want this Nexus 7, it is a 2012 model.
cdb2643 said:
Honestly, I do not think it is the battery, I can see the Charge signal, and the Battery is showing 1,784 VDC tested unplugged and disconnected, my smart young co-worker seems to think POST is failing, I still never see a "Charging" indication.
Does anyone know , Is there a fail safe, say the battery is disconnected, and usb charger is plugged in, will i just see all 5VDC at the sub port, ?
I never see a screen flicker, DEAD battery sign, nothing.
co-worker, tried some things that made sense when he explained what he did, I would have to agree with him.
Now it is rooted, 4.x something I forget, Never went to 5.x did once early and did not like it, Back stock, ran 2 days no issues, Rooted again, 4.x still do not remember, worked great 3-4 months, Sons ran it to DEaD and that was it, put it up for 90 days or so, wife got new tablet, kids have Fire each, and here i am tabletless, CRAP, did not want to throw to much $$$$ at this thing, nor did I want to buy a new one.
Samsung Tablet here we come.
any body want this Nexus 7, it is a 2012 model.
Click to expand...
Click to collapse
I would be more than happy to take it off of your hands mate. Probably gonna use it for parts to keep mine running.

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