Develop Bugs

Galaxy Nexus doesn't boot

Hi Guys,
I'm having some trouble with my phone, I'm calm at the moment - I hope someone can give me a little direction to solve the issue.
Today right after a call, I went to unlock my screen (pin code) the phone switched off...it started to boot (displayed the Google text / logo) after a short vibration, the screen goes black and the Google text appears again. This continues in a loop.
The phone is stock Android 4.02, GSM phone.
Any ideas on where to start? I have installed android SDK, (and java before that)
I have downloaded a stock image from Google code (yakju-icl53f-factory-89fccaac.tgz)
I also downloaded GNex TOOLKIT V5.5 and installed the USB drivers.
Can I use the toolkit to restore the phone?
Or would I need to do this via fastboot...
I'm not greatly technical, so a little guidance would be really appreciated.
I bought this phone from Hong Kong, and I'm in the UK! Other wise I'd be taking it back to a service centre.

Apologies guys, I've just done a factory reset via the recovery menu.
The phone seems to be booting now. lost everything though :-(
Any ideas why this happened? has it happened to anyone before?
I love the phone...but so confident with it now.

HSKalay said:
Apologies guys, I've just done a factory reset via the recovery menu.
The phone seems to be booting now. lost everything though :-(
Any ideas why this happened? has it happened to anyone before?
I love the phone...but so confident with it now.
Click to expand...
Click to collapse
This is sometime's caused, by the Android OS, itself.
Basicly, it probably told itself, to hang up, then took the wrong script (It is normaly RadioOptions...) And this caused it to crash...
And, instead of doing a factory reset, you could have just reinstall the system, via fastboot (This is an option, in my Root Helper )
But, just be glad, you fixed it If you're lucky, you can download a copy, of your phone, from the Google servers (It should normaly do this, automaticly, after entering Google info, in the Setup Wizard...)

[Q] Nexus will not start up

First of all, I'd like to apologize if I'm breaking any forum rules. I just hastily made this account because I did something stupid and I need your help.
I rooted my Nexus 7 a few days ago, and it all went well. While looking through root apps on the Play store today, I found a font switcher. It looked alright, so I figured I'd download it. I picked out a font, hit install, and the device rebooted as I would expect. It showed the Google logo, as well as the padlock icon, and then went to the "X" as per usual. However, it stayed on that screen for quite a while and would not start up. The bootloader menu still works, but I can't really do much with it. I'm afraid I had USB debugging turned off as well. Please help, I don't have a clue what to do and I don't want to have it permanently bricked less than a month after buying it. Thank you in advance.
P.S. You'll have to explain the terms to me, rooting is sort of a new area for me.

Factory reset ?

hyperxguy said:
Factory reset ?
Click to expand...
Click to collapse
I wouldn't mind doing it, but I can't as I can only access the bootloader menu and I don't have any recovery programs installed.

I'm not very familiar with stock recovery (assuming that's what you have. I've never seen the stock recovery since I wiped stock off my tab as soon as I could). But doesn't it have a factory reset option ? (I thought I saw that on my old N7 when it was still on stock form)
Edit: you can get to stock recovery from the bootloader menu. Just use volume up/down to rotate thru menu options and hit power to select.

hyperxguy said:
I'm not very familiar with stock recovery (assuming that's what you have. I've never seen the stock recovery since I wiped stock off my tab as soon as I could). But doesn't it have a factory reset option ? (I thought I saw that on my old N7 when it was still on stock form)
Click to expand...
Click to collapse
I tried entering recovery mode and I got an error icon, then after a while it just rebooted.

Is your tab OK now ?
Don't worry too much, it's very difficult to "brick" a N7.
You may look at this tool:
http://forum.xda-developers.com/showthread.php?t=2389107
It's easy to do many things.
The hardest part would be to get your PC to fully recornize your tab (which you're there, since you rooted the tab).

If you don't mind losing data, you can just flash stock back from fastboot. If you want to try factory resetting, you can flash a recovery image from fastboot, then reset from there. Fastboot is done from the bootloader.

hyperxguy said:
Is your tab OK now ?
Don't worry too much, it's very difficult to "brick" a N7.
You may look at this tool:
http://forum.xda-developers.com/showthread.php?t=2389107
It's easy to do many things.
The hardest part would be to get your PC to fully recornize your tab (which you're there, since you rooted the tab).
Click to expand...
Click to collapse
Yes, it's fixed. I found a recovery tool in WugFresh's toolbox.

[Q] Will warranty service knows if my device is rooted and unlocked?

Hi guys! I want to send my Nexus 7 (2013) to warranty service because it's bricked and I think the motherboard is destroyed. Will the service understand that the device is unlocked (bootloader) and rooted?

I could be wrong so wait for confirmation from someone else but if it won't even power on I don't think they would know, however if it powers on as far as the white Google logo you can see it is unlocked by the white padlock that is opened at the bottom, or closed lock for locked boot loader.
Sounds like it won't power on though if the main board is dead so I doubt they could know...

If it helps i had an iphone 4 that i jailbroke and it ended up bricked. It wouldnt connect to the computer or anything else. I had the same worry you have and when it was sent off i thought theyd find out. They didnt, and i got a replacement. If it doesnt connect to a computer they just dismantle them for parts. A repair engineer is more expensive to employ than a few idiots with screw drivers.

May be I am wrong about the mainboard. Yeah, I can turn it on, but I can go only to boatloader. It can be connected to computer (only fastboot mode) and there is unlocked padlock.
I guess need to lock the bootloader. But the device does not see any space (free or used) - I was connected it to computer and used a recovery mode with Skipsoft application. May be the memory is dead. It shows that cannot mount any partition. I don't know. Is there any way to lock the bootloader?

I am guessing you used Wug's root toolkit to unlock. I have seen others relock there's when there has been problems similar to yours, maybe check his thread out and ask in there.

Yep, I used his toolkit. But I tried every button in the application but nothing worked. I'll try to search deeper. I'm so afraid because I bought the device 1 month ago.

ryderbg said:
Yep, I used his toolkit. But I tried every button in the application but nothing worked. I'll try to search deeper. I'm so afraid because I bought the device 1 month ago.
Click to expand...
Click to collapse
Yeah I know the feeling
I am always worried about devices failing but after I have had it for about a year I wont be so scared and will take more risks with it usually. Only had mine for around 2 weeks and am also worried it could go off at anytime as mine is unlocked and rooted. Lots of people seem to have had problems with this device, my Xperia S never had problems

ryderbg said:
Yep, I used his toolkit. But I tried every button in the application but nothing worked. I'll try to search deeper. I'm so afraid because I bought the device 1 month ago.
Click to expand...
Click to collapse
Try this... http://www.android.gs/restore-un-br...4-3-jelly-bean-twrp-and-root-guides-included/
It might at least get it locked for you....

Thank you! I will try that as soon as I go home...

This is pretty much what danvee posted but still..
If you can use fastboot that's a good sign. You probably don't even need to send it in. Try this: http://forum.xda-developers.com/showthread.php?t=2469508&highlight=stock
You say something about no space? If the above link doesn't get you running again try this first: http://forum.xda-developers.com/showthread.php?t=2380913 Worked for me.
You can just flash twrp with "fastboot flash recovery recoveryname.img"(without quotes), wipe, then use the steps in the first link.
If that doesn't work it probably is some kind of hardware problem.

I just locked the bootloader. I used the command fastboot oem lock and there is no padlock now. Also Lock state changed to locked. I think now I can return the tablet in the shop.

ryderbg said:
I just locked the bootloader. I used the command fastboot oem lock and there is no padlock now. Also Lock state changed to locked. I think now I can return the tablet in the shop.
Click to expand...
Click to collapse
heres a funny story but what it resulted in and how i fixed it seem to apply to the problem you have.
i have a cracked screen on my nexus and it was registering a touch at intermittent intervals making the device unusable. i posted in here about the same time you did for help. while i was waiting to see if anyone knew if i could just disconnect the screen and use a bluetooth mouse with a hdmi adapter (slimport not mhl, thanks meekrawb) i connected a usb mouse with an otg cable. the mouse worked but i couldnt see how to turn off touch screen as an imput. as kitkat has been release and i hadnt updated i thought i would give it a try and see if that would reset the screen and stop the touch. It downloaded the update and when it rebooted it opened up a mod recovery screen (i forgot that i had rooted it). it asked me to slide a bar on the bootloader screen to continue. The usb mouse cursor was not present on this screen and the touch screen doesnt work so i couldnt get past it. i turned the device off and on again (what else do you do when your stuck) and it would open the google screen with the unlocked padlock but then just stay on a completely black screen. same as yours. I connected it to the computer and it recognised it. i opened wugfresh's root tool kit (old apple jb's sometimes had recovery abilities built into them so i thought this may aswell) i clicked on flash stock and unroot with the radial button on soft bricked and followed the instructions. now my device is unbricked and even the touch has stopped. Happy days hey. you'll need to unlock your boot loader again but its worth a try before going to the store, you can always lock the bootloader again if it doesnt work.
i know it didnt need all this to say "connect it to the root tool kit and try that" but i thought you would enjoy a laugh

Funny story. But my issue is hardware. The device doesn't show any space in it. No free nor used. I think the memory is dead. Also I relocked the bootloader, but now I cannot unlock it again because there is no space
Now when the tablet is with locked bootloader, it is unrooted, right?
Tommorow I will visit the warranty service and hope they don't understand about rooting and unlocking.

according to an email from "google play support India" , the device will be accepted under warranty as long as it has a stock firmware installed when you send in the device to claim the warranty.

[Q] Nexuz 7 stuck at the google logo

Hello I need a but of help my Nexus 7 is showing my nothing but the google logo and at the store earlier it showed the android with his chest up and a red triangle. it doesnt even show the moving colors after i turn it on it just sits and says google like a paper weight. i can turn it off and on but nothing more. the geek squad at best buy told me to ask for help here at Xda. last thing i was doing with it was opening deer hunter 2013 and next i go to see if it opened and it stuck on the google logo. can anyone help me fix my tablet? its not under store warranty only manufactures.

Well, sucks to be you.....just kidding...but that does suck. Now, on to more serious matters...
Do you have access to your bootloader? (hold the power button + the vol up button at the same time) If you do, you might want to look into rooting the tablet. Based on the content of your post, I am assuming that you haven't. There is plenty information about rooting the Nexus 7.2 tablet (and just about every other Android device). Simply Google "root Nexus 7 2013" and you will quickly find your answer.
Also, how much do you know about rooting and the sort? I want to know before I waste my time giving details about info that you are aware of.

aarsyl said:
Well, sucks to be you.....just kidding...but that does suck. Now, on to more serious matters...
Do you have access to your bootloader? (hold the power button + the vol up button at the same time) If you do, you might want to look into rooting the tablet. Based on the content of your post, I am assuming that you haven't. There is plenty information about rooting the Nexus 7.2 tablet (and just about every other Android device). Simply Google "root Nexus 7 2013" and you will quickly find your answer.
Also, how much do you know about rooting and the sort? I want to know before I waste my time giving details about info that you are aware of.
Click to expand...
Click to collapse
i dont know anything about rooting. i dont have access to the boot loader. i did a few days ago now it wont even show up, the guy and best buy tried to bring it up and its like it was showing a dead android or something chest open with a red triangle above it. he said someting about maybe have to flash a new or or something like that on to it, it wont show me anything just stays off or shows the google logo when its on

Sigh...that is the bootloader. Maybe...he could have booted into the stock recovery, which shows this or something similar for most devices. Please remember, they are reps...they may know about the software, but usually they speak from their experience or their perspective. I'm glad that he sent you here for a second opinion.
Hold the volume down button and power button to get into the bootloader. You should see some options at the top of the screen saying Start, Restart bootloader, Recovery Mode, Power Off. Not sure if those are the exact options, but it's pretty close.
Also, you need to look into rooting your device. You need to download some files first. You'll need adb, fastboot, and drivers for your Nexus.
And one last thing....what Computer OS do you use? The rooting process is slightly different for each one (Windows 7, 8/8.1, Mac OS, & Linux). If you are into computers, and you have Linux installed on a device, good for you. That is my preference when rooting, as Android is built from Linux, and naturally supported without the need for drivers.

I had similar problems when I first bought it. Going into recovery and resetting the tablet cured it. You will lost all your data BTW.

He's facing the loss of his entire tablet, so I'm sure that data loss isn't the biggest thing to worry about.
But yes, just about every solution involves a clean wipe of data.
_______________________________________
Phone: HTC EVO 4G LTE
Sense 5, S-Off
Tablet: ASUS Nexus 7.2
Rooted, Custom Rom & Kernel
_______________________________________

I'm stuck on the google logo too. I had my tablet plugged in over night and when I opened the cover this morning it woke up, but as soon I tried to access anything it rebooted and stuck.
I'm unlocked and have tried various thing. NRT doesn't recognize it as an ADB device so I don't think that will work. Fastboot works, but I keep getting "FAILED (remote: flash write failure)" when I try to use the factory flash all, or the instructions found here: http://forum.xda-developers.com/showthread.php?t=2381582
I can use fastboot to query the device and get it to return "flo" but it seems like the flash storage has failed.
if it's truly horked, can I use "fastboot oem lock" to relock it and attempt a warranty replacement?

sean67854 said:
I'm stuck on the google logo too. I had my tablet plugged in over night and when I opened the cover this morning it woke up, but as soon I tried to access anything it rebooted and stuck.
I'm unlocked and have tried various thing. NRT doesn't recognize it as an ADB device so I don't think that will work. Fastboot works, but I keep getting "FAILED (remote: flash write failure)" when I try to use the factory flash all, or the instructions found here: http://forum.xda-developers.com/showthread.php?t=2381582
I can use fastboot to query the device and get it to return "flo" but it seems like the flash storage has failed.
if it's truly horked, can I use "fastboot oem lock" to relock it and attempt a warranty replacement?
Click to expand...
Click to collapse
You can try Method 2 from this post: http://forum.xda-developers.com/showthread.php?t=2513701
I know it's for the N5, but I used this one for both my Galaxy Nexus, N5 and N7. Since they are all Nexuses (Nexi?), the same general procedures apply. I always prefer to do it all manually, step-by-step, which is why I went with Method 2 in the OP of that thread. Obviously, since this is the N7, just skip the radio flashing command. Everything else is the pretty much exactly the same. If this doesn't work in fastboot, then it's probably a hardware failure.

Unable to unlock bootloader

hey guys,
Today nexus 7 decided to reboot and get stuck on google startup screen. so i tried to clear cache / format wipe through recover.
because it didn't work then i downloaded and installed Skilsoft toolkit, I had used it before on the previous nexus 2012 for the same reason and worked perfect but this time it just doesn't work on nexus 7 2013.
I am trying to unlock bootloader i go to the poitn the message appears on the tablet screen unlock bootloader i press power to select yes the toolkit then proceed in saying erasing data and just stays there on that screen for ever.
Then i tried to use the nexus root toolkit and the exact same happens.

LUCA LUCA said:
hey guys,
Today nexus 7 decided to reboot and get stuck on google startup screen. so i tried to clear cache / format wipe through recover.
because it didn't work then i downloaded and installed Skilsoft toolkit, I had used it before on the previous nexus 2012 for the same reason and worked perfect but this time it just doesn't work on nexus 7 2013.
I am trying to unlock bootloader i go to the poitn the message appears on the tablet screen unlock bootloader i press power to select yes the toolkit then proceed in saying erasing data and just stays there on that screen for ever.
Then i tried to use the nexus root toolkit and the exact same happens.
Click to expand...
Click to collapse
You can try doing it manually. This guide tells you how: http://forum.xda-developers.com/showthread.php?t=2382051. But since you can't boot the phone normally you can boot into the bootloader by turning your tablet off. And then boot it up again while holding volume down key. Keep holding volume down until you are in bootloader mode. Then you can continue to follow the guide.

theminikiller said:
You can try doing it manually. This guide tells you how: http://forum.xda-developers.com/showthread.php?t=2382051. But since you can't boot the phone normally you can boot into the bootloader by turning your tablet off. And then boot it up again while holding volume down key. Keep holding volume down until you are in bootloader mode. Then you can continue to follow the guide.
Click to expand...
Click to collapse
Thank you the reply.
I have tried that method too, but it always gets stuck at the same point clearing user data.
By the looks of it is completely gone judging by the other threads.
First nexus i ever bought and dint last 4 months(lost the receipt so no hope in returning it)

LUCA LUCA said:
Thank you the reply.
I have tried that method too, but it always gets stuck at the same point clearing user data.
By the looks of it is completely gone judging by the other threads.
First nexus i ever bought and dint last 4 months(lost the receipt so no hope in returning it)
Click to expand...
Click to collapse
I have the same problem. Based on the sites I have visited, there is no current way to fix it. Google will probably never make a fix since they're getting tons of money from people buying new tablets to replaced they're broken tablets. Sorry about that.

Have you not tried the excellent Nexus Root Toolkit by Wugfresh? Worth a shot I reckon.