[q] urgent! Nexus 4 won't turn on! - Nexus 4 Q&A, Help & Troubleshooting

I have had a nexus 4 for a while, and I rooted it about 2-3 months ago, but today for absolutely no reason, it won't turn on (please note it was fully charged when I left it). I have tried to leave it plugged in for a while, and after I tried turning it on nothing happened. When I connected it to my computer it showed up as QHSUB_DLOAD. I don't have any custom rom or kernel, all I have is an unlocked bootloade on my rooted nexus 4. I tried holding the power button for over 30 seconds (it was suggested on another post here at XDA) and it still wouldn't do anything. Please help me, I have no idea what happened or how to fix this.

PROBLEM FIXED!
jonapunk sent me a message with a simple procedure to solve this:
"Try volume up and power for 20 sec. Then press power button one more time"
I have put his message up for everyone to see in case they encounter the same issue.

Android 9000 said:
I have had a nexus 4 for a while, and I rooted it about 2-3 months ago, but today for absolutely no reason, it won't turn on (please note it was fully charged when I left it). I have tried to leave it plugged in for a while, and after I tried turning it on nothing happened. When I connected it to my computer it showed up as QHSUB_DLOAD. I don't have any custom rom or kernel, all I have is an unlocked bootloade on my rooted nexus 4. I tried holding the power button for over 30 seconds (it was suggested on another post here at XDA) and it still wouldn't do anything. Please help me, I have no idea what happened or how to fix this.
Click to expand...
Click to collapse
There are several threads already dealing with this.

Got a new replacement Nexus 4 from google today and turned on phone and the colours were all fuzzy. After turning screen off, it doesnt turn on. Doesnt go into bootloader mode. Tried all the button combinations also.

Related

[Q] Nexus 7 taking either 4 or 25s pressing the button to turn on, also..

My N7 was flawless until some days ago.
Usually to turn on, I had to press the power button for 4s and it would turn on, never ever failed. Also on the boot sequence (the X of nexus), it took relatively low time, even when I had all of my currents apps installed (nothing changed).
For the last days, it's happening that sometimes the device doesn't wake up after pressing the button. I've checked and I have to press it for 20-25s in order to see the "Google" logo and have it start booting.
Also, the nexus "X" boot animation also randomly takes like 4x longer, and it seems to not have any relation with the 20s pressing issue, since it happened me both with the 4s and 20s pressing power-on times.
But both of those issues came together.
Anyone else with the same issue? Would a factory reset solve the problem?
Thank you in advance.
RusherDude said:
My N7 was flawless until some days ago.
Usually to turn on, I had to press the power button for 4s and it would turn on, never ever failed. Also on the boot sequence (the X of nexus), it took relatively low time, even when I had all of my currents apps installed (nothing changed).
For the last days, it's happening that sometimes the device doesn't wake up after pressing the button. I've checked and I have to press it for 20-25s in order to see the "Google" logo and have it start booting.
Also, the nexus "X" boot animation also randomly takes like 4x longer, and it seems to not have any relation with the 20s pressing issue, since it happened me both with the 4s and 20s pressing power-on times.
But both of those issues came together.
Anyone else with the same issue? Would a factory reset solve the problem?
Thank you in advance.
Click to expand...
Click to collapse
How much memory is free on your N7? I've seen posts from people who have had similar issues when they came close to filling up the memory on their N7.
Sent from my Paranoid Nexus 7
RockNrolling said:
How much memory is free on your N7? I've seen posts from people who have had similar issues when they came close to filling up the memory on their N7.
Sent from my Paranoid Nexus 7
Click to expand...
Click to collapse
16 GB model, more than 6GB left.
It has been like that for the last 2 weeks.

[Q] Stock 4.2.2 - Impossible to wake up, white flashing led

Hi,
Does anyone else have the same problem I have?
If I leave the phone running on battery for a couple of hours it is sometime impossible to wake it up by pressing the power button. Also the LED flashes white (not red). In order to get it working again I have to hold the power button a couple of seconds causing it to reset.
This happens on stock 4.2.1 and also in CM (4.2.1 and 4.2.2).
Seems like a HW problem? Should I send it in for repair?
BR/Svanteson
I've had this issue as well. It may be an issue with one of your downloaded apps. I have gone back to stock without any 3rd party apps and I haven't had the issue yet. Going to test a couple days and see what happens.
Edit: Maybe if you post some of your 3rd party apps you downloaded we can see if we have some in common.
Sure, here are some of my 3rd party apps
Moxier Mail
Eniro
Hitta
Wifi Analyzer
CPU Spy
Subnet calculator
Quadrant
Dropbox
Facebook
Whatsapp
Viber
Spotify
Shazam
MX Player
Truecaller
Llama
Android Lost
Out of those, Facebook and Android Lost are the only ones we had in common. I'll report back on this thread if this issue returns on my freshly flashed stock device without any 3rd party apps.
Similar problem here...
beand1p said:
Out of those, Facebook and Android Lost are the only ones we had in common. I'll report back on this thread if this issue returns on my freshly flashed stock device without any 3rd party apps.
Click to expand...
Click to collapse
Similarly, on two occasions now, I've gone to bed with the N4 on the charger, only to find it completely shutdown in the morning, and the battery unchanged from where it was when I plugged it into the charger. It required holding the power button down for quite awhile before I got a response and the unit rebooted. The first time, I didn't bother doing anything at all, but this morning, when it happened again, I called N4 support. I was advised to do a factory reset, and monitor it. If it did it again, they'll do an RMA. It seemed they would have sent another one right then if that's what I wanted them to do, but I told them I'd try the factory reset. They also sent an email with a direct contact link to the agent I spoke with in the event I need to return it.
My Device:
Nexus 4 16GB
Android 4.2.1
Kernel 3.4.0-perf-ge039dcb
Not rooted
I'll also post if the factory reset works. I've also read online, that holding the Volume Down and Power Button both for about 10 seconds, disregarding anything that appears on your screen, will shut your device down. Restart and, at least for several posters, the problem disappeared. Just an FYI. I'll try it if the reset doesn't provide the cure.
No joy....
Phubai said:
Similarly, on two occasions now, I've gone to bed with the N4 on the charger, only to find it completely shutdown in the morning, and the battery unchanged from where it was when I plugged it into the charger. It required holding the power button down for quite awhile before I got a response and the unit rebooted. The first time, I didn't bother doing anything at all, but this morning, when it happened again, I called N4 support. I was advised to do a factory reset, and monitor it. If it did it again, they'll do an RMA. It seemed they would have sent another one right then if that's what I wanted them to do, but I told them I'd try the factory reset. They also sent an email with a direct contact link to the agent I spoke with in the event I need to return it.
My Device:
Nexus 4 16GB
Android 4.2.1
Kernel 3.4.0-perf-ge039dcb
Not rooted
I'll also post if the factory reset works. I've also read online, that holding the Volume Down and Power Button both for about 10 seconds, disregarding anything that appears on your screen, will shut your device down. Restart and, at least for several posters, the problem disappeared. Just an FYI. I'll try it if the reset doesn't provide the cure.
Click to expand...
Click to collapse
Following up on my post yesterday, a hard reset did not help anything. Neither did an update to 4.2.2 for that matter. I also tried holding the Volume Down and Power Button until it shut down, and while the problem hasn't re-occurred, I really haven't provided enough time to tell yet. So Google is sending me another one and issuing an RMA. In the interim, while I'm waiting for the new one to arrive, I'll follow up if the VolDown and Power button has done anything.
I'm having the same issue. I just woke up, phone had a flashing white LED and would not boot. A reboot was neccessary. Is this a hardware failure?
The last couple of days I have not had WLAN activated. So far it is running fine.
I will activate WLAN today to see if the problem reappears.
svanteson said:
The last couple of days I have not had WLAN activated. So far it is running fine.
I will activate WLAN today to see if the problem reappears.
Click to expand...
Click to collapse
Why would you think there's a correlation between the two? I do have problems with wireless-notifications; for example, messages on whatsapp are often delayed, where I get a notification at say 11PM when the message was sent 10:45PM. Do you also experience this?
No problem noted this morning...
Phubai said:
Following up on my post yesterday, a hard reset did not help anything. Neither did an update to 4.2.2 for that matter. I also tried holding the Volume Down and Power Button until it shut down, and while the problem hasn't re-occurred, I really haven't provided enough time to tell yet. So Google is sending me another one and issuing an RMA. In the interim, while I'm waiting for the new one to arrive, I'll follow up if the VolDown and Power button has done anything.
Click to expand...
Click to collapse
I don't know whether holding the Vol Down and Power Button resolved the issue, but at least it didn't happen last night whereas it has been failing nightly when on the charger. Unfortunately, I was just notified that my replacement has already shipped, or I would tell them to hold off a day or two. For those of you experiencing this, you might try holding the Vol Down and Power Button at the same time until the device shuts down ignoring anything on the screen. Then simply restarting. I'm not saying that mine is fixed, only that it had a good night and that was the only thing I've done.
I will post again up until I have sent this device back. I have 21 days in which to return it or my credit card will be charged for real.
Phubai said:
I don't know whether holding the Vol Down and Power Button resolved the issue, but at least it didn't happen last night whereas it has been failing nightly when on the charger. Unfortunately, I was just notified that my replacement has already shipped, or I would tell them to hold off a day or two. For those of you experiencing this, you might try holding the Vol Down and Power Button at the same time until the device shuts down ignoring anything on the screen. Then simply restarting. I'm not saying that mine is fixed, only that it had a good night and that was the only thing I've done.
I will post again up until I have sent this device back. I have 21 days in which to return it or my credit card will be charged for real.
Click to expand...
Click to collapse
Mine also failed while on the charger a few times, but it also happened when not charging, so.... I'll try your solution. Why not!
This just happened again this morning. My alarm failed to go off, but the phone LED was flashing white. I could not turn the screen on. I did install some 3rd party apps yesterday:
Facebook
Tasks Free
reddit sync
Ally
IMDb
Pandora
Twitter
I tried the Vol Down + Power and that didn't work for me. I think I am going to RMA the device.
Yea...I have a few apps on my device, but not the ones mentioned here. So I don't think that can cause it. Hoping for more responses! I subscribed to this thread now.
Does anyone know if there is a bug report for this issue?
Not sure, don't think so as I've googled this quite alot. I just saw my telephone, which was idle next to me for about an hour, reboot itself. I saw the google and then the nexus logo without me even touching it. No white flashing LED this time, allthough that also has happened to me. This is getting very annoying now...
Google Support's reply on this
I have seen this happen to my phone more than a few times. I can't make it happen consistently though. I contacted the support hoping for a RMA, and today I received this response from them.
"Thank you for contacting us about your Nexus 4 and providing those details for clarification. This issue could be possibly not be a problem, it is a feature as with any Jellybean OS device; and goes in to the sleep state after some hours of inactivity - such as the details your describe when left overnight. It can go in to a deep sleep, where holding the power button for 30 seconds or more is what wakes the device up."
So this is a *feature*? It seems puzzling to me. I don't know if receiving a call would wake it up (if not, it would definitely be a problem).
I also tried different roms, PA and Xylon, and stock 4.22 with different kernels ranging from Franco to Motley. It would still happen. Rarely but it's still there. Also I am trying to see if changning the minimum clock speed to 1024 would change anything. I will report back once I have more info.
Still working so far...
I've not had a problem with mine since the Vol Down and Power Button shutdown. It may not even be related and may have just "healed" itself, or the problem has simply become intermittent and hasn't repeated itself yet...dunno unfortunately. Since my replacement will be arriving today, I may never know since I'll be shipping this one back to them. I may wait until Monday to ship it though, and see if it acts up again and repost if it does or doesn't.
Hopefully the replacement won't have this problem at all!
locked up
I don't think the flashing white-LED is a signifier of a problem. I think it is a different status message, like email or facebook, or something. I haven't found that documented anywhere, but I've noticed it is blue sometimes and white other times. Without being locked up.
My phone will lock up while charging overnight. I have turned off Dream State and the LED notifier thinking it was related to these. It did seem to be somewhat better after that, but the last two nights have seen the phone locked up.
Also, holding down the power button for 30 seconds will hard power it off at 10 seconds, it seems to me. That is typically how I deal with this lock up! Hold down the power button 10 seconds, release, press it again and wait for it to boot.
This is frustrating. I was thinking of rooting the phone so I can use a logwatcher, but I'm not sure I will see anything in the logs after booting the fracking thing.
But.. while I consider that I will start by uninstalling Facebook, Dropbox, and Twitter apps, based on seeing them on other people's lists.
I'm going to RMA the phone. Just a question, what charger do you guys use? I've been using a samsung charger (from my Galaxy S2), perhaps that's related? As it does happen while charging mostly, allthough I saw the phone reboot itself out of nowhere without it being plugged in yesterday too.
I've only used the Nexus 4 charger on mine. No others. I'm on my new device now but haven't sent the other one back yet. Probably tomorrow.
Sent from my Nexus 4 using Tapatalk 2

Touchscreen just died

I was using my Nexus 7 (2013) this morning surfing some sites, when all of a sudden my touchscreen just up and died. No laggy response, no jittery response, just nothing. I can't even unlock it when I wake it up. I can't power it off (as far as I know), since after I hold the power button down, I can't select Power Off.
I'm rooted running a stock 4.3 as fas as I know. Any ideas of where to begin? Thanks in advance.
Sent from my iPad using Tapatalk
I had the same issue when I didnt use it for 4 days. Touch would respond and when the power off dialog came up I couldnt touch it but just hold the power button longer and it will reboot. I held it for about 15 seconds maybe 20 and it will restart
Well, if that previous posters suggestion does not work, or any software-related solution, my first suggestion would be to send it back for a replacement, barring that, it sounds like something could have come loose, if you're the type to try it, you can see how that is addressed with the 2012 version:
Google for "How to Fix Nexus 7 Touch Screen Problems", the video is by Tampatec.
Happened to me too once but i was on a custom rom and kernel. I freaked out when the touch wasn't responding!
I held down to power button to power-off/reboot. It seemed to result in a bootloop and i wasn't exactly patient because i was freaking out a bit!
So, i powered down the device again, booted into recovery (TWRP) and to my relief the touch worked!! I just rebooted back to the system and everything was fine.
This happened to me on stock android 4.3 twice. I believe it is a software issue with the last one or two factory builds of 4.3 for this device. As previously stated, my problem was fixed by holding down the power button for about twenty seconds until it rebooted.
Sent from my Nexus 7 using Tapatalk 4
I got it to reboot and that seemed to do the trick *crosses fingers*
Sent from my XT901 using Tapatalk
Had this issue too a few days ago. I connected it to my PC and rebooted it via adb reboot command.
Occasionally I get this issue after switching the screen on running completely stock 4.3, but I can solve it by holding the power button - not to reboot, but just so the menu comes up. That alone wakes the touchscreen up for me.

Note 4 Randomly Turned Off Won't Turn On Anymore

Hi everyone, after trying everything I could to fix this phone I don't know what to do anymore so I'm here asking for other options.
So the story is, I was just using my phone as I usually would that day and it just randomly turned off and won't turn back on anymore.
(it randomly turned off before a couple of times but it would always turn back on)
- It won't go into recovery mode or any other of the 'modes' (I tried all the different combinations of pressing the keys).
- It's not a battery issue as I've tried my battery on my brother's phone (he has a Note 4 too) and it worked fine and I tried his battery on mine and it wouldn't work.
- I tried the 'drain' method (removing the battery and holding the power button for a minute or more).
- I tried using multiple cables to charge my phone nothing worked.
I didn't drop my phone, wet it, root it or anything and it was working fine the day it happened until it just powered off by itself. When I plug it in my laptop it would make
a sound indicating I've plugged something in but nothing happens. It was version 5.1.1 model SM-N910F.
TLDR; Is there a way to somehow recover the files in the internal phone memory?
This is happening to me as well, also started in February. I'm suspecting a hardware issue. Tried it ALL but rooting. In the past 30 minutes my phone has booted and rebooted itself till it died. If someone can confirm it is a hardware issue. Maybe it's time to unite and get it fixed for free. ~Tamarnouche
Recovering data from a brain dead phone may not be possible, as it probably need some internal component replacement which may erase the data(Mostly). Have u tried connecting it to pc? Better give it to service immediately. Good Luck.
My phone has done exactly the same thing, happened in February too, initially it did the random freeze then started to reboot itself, went back to stock software and full wipe but no improvement; now it will only boot if I leave the battery out for a prolonged period, otherwise it doesn't respond to the power button at all.
I occasionally see MMC Read Fail on boot but not all the time so presumably the internal memory has a bad contact or is failing.
Can it be replaced?
HXOY said:
My phone has done exactly the same thing, happened in February too, initially it did the random freeze then started to reboot itself, went back to stock software and full wipe but no improvement; now it will only boot if I leave the battery out for a prolonged period, otherwise it doesn't respond to the power button at all.
I occasionally see MMC Read Fail on boot but not all the time so presumably the internal memory has a bad contact or is failing.
Can it be replaced?
Click to expand...
Click to collapse
I have the same problem with my Note 3. Only if I keep the battery out for a long (over 24 hours) time I can see the boot logo. So if you find a solution to this kindly don't forget to tag me, will really appreciate it.
I was wondering..
I came across this Forum group since I was looking for boot problems with my SM-N910T3
I hope flashing pit will resolve this..
I recently started to have some low level issue and was hoping it was partition/boot related and not hardware.
Randomly phone boot directly into Download mode with error;
ddi: mmc_read failed
Often I have to pull battery and hold down /power / home for 10 sec to boot up again.
Thanks

death of my nexus

I was on chrome scrolling down a page yesterday, when the phone froze and went black. I haven't been able to turn it on or put it in recovery since. Does anyone know what happened to it? It was on the at&t network. Never froze up before that. I was running the 6.0.1 dragon screwed rom (I think). I loved my nexus. Any help or info would be appreciated.
jennandjoey76 said:
I was on chrome scrolling down a page yesterday, when the phone froze and went black. I haven't been able to turn it on or put it in recovery since. Does anyone know what happened to it? It was on the at&t network. Never froze up before that. I was running the 6.0.1 dragon screwed rom (I think). I loved my nexus. Any help or info would be appreciated.
Click to expand...
Click to collapse
Try plugging your phone into your computer and see if it's recognized, also try pushing the power button down for a long time (up to 2-3 minutes)
I tried the power button for 5 minutes 3 times and still nothing. I also plugged it into a computer and it's not recognized. I miss it already
jennandjoey76 said:
I tried the power button for 5 minutes 3 times and still nothing. I also plugged it into a computer and it's not recognized. I miss it already
Click to expand...
Click to collapse
Call Google. Mine was out of warranty but they did do a one time courteousy replacement.
Talked to Google earlier and they are gonna send a refurbished nexus 6p to replace mine. Probably gonna make it my backup when the pixel 2 comes out.

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