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[Q] Nexus 5 hangs while booting (four colored circles)

OP gofrm76

27th August 2014, 12:00 PM   |  #1  
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Hi,

yesterday i was trying to reboot my N5 after investigating some battery lifetime issues and deleting the app-data of the google-now service as described in another forum post. but the device refused to start. i don't know if it has something to do with the previous action.

the phone is stock kitkat. No root/unlock, No custom roms.

before doing a factory reset i want at least backup my images. when the device is powered on and hangs in the bootscreen i can access the internal storage via win7-explorer. i can see the files but i am not able to copy the files, i get an error-message telling me that the files are broken. I tried "adb shell" and was able backup some files to my pc harddrive but didn't find the location where the images are stored. Is it possible that the file-system of my phone is corrupted? Were are thy supposed to be stored on a Nexus 5?

Is there any chance to somehow access the data before doing a factory reset? It it possible to make the device boot again by manipulating some specific files via adb? or is it possible to install a custom recovery image without unlock the bootloader and whithout overriding existing user-data?

thanks in advance!

regards
Christian
27th August 2014, 02:43 PM   |  #2  
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If you're on about photo's taken with the camera they will be in

/storage/emulated/legacy/DCIM
or /storage/sdcard0/DCIM

For photo's elsewhere this will depend on what you used to take them. where you placed them yourself and what not.
27th August 2014, 04:46 PM   |  #3  
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I got the same problem Boot loop on Nexus5
Quote:
Originally Posted by gofrm76

Hi,

yesterday i was trying to reboot my N5 after investigating some battery lifetime issues and deleting the app-data of the google-now service as described in another forum post. but the device refused to start. i don't know if it has something to do with the previous action.

the phone is stock kitkat. No root/unlock, No custom roms.

before doing a factory reset i want at least backup my images. when the device is powered on and hangs in the bootscreen i can access the internal storage via win7-explorer. i can see the files but i am not able to copy the files, i get an error-message telling me that the files are broken. I tried "adb shell" and was able backup some files to my pc harddrive but didn't find the location where the images are stored. Is it possible that the file-system of my phone is corrupted? Were are thy supposed to be stored on a Nexus 5?

Is there any chance to somehow access the data before doing a factory reset? It it possible to make the device boot again by manipulating some specific files via adb? or is it possible to install a custom recovery image without unlock the bootloader and whithout overriding existing user-data?

thanks in advance!

regards
Christian



I got the same problem with a Nexus 5 in boot loop after restarting the phone.

The phone is stock standard and still locked.


I did a factory reset but that did not fix the problem still the same.

Name:  Nexus5-5.jpg
Views: 202
Size:  150.8 KB

Name:  Nexus5-2.jpg
Views: 201
Size:  127.9 KB


After that I tried to flash a factory image on to the N5 but it was also unsuccessful. See the command list.

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Users\Ruedi>cddesktop
'cddesktop' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\Ruedi>cd desktop

C:\Users\Ruedi\Desktop>cd androidflash

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot oem unlock
...
OKAY [ 11.977s]
finished. total time: 11.980s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot devices
06b8913ed008ba8b fastboot

C:\Users\Ruedi\Desktop\AndroidFlash>flash-all.bat
sending 'bootloader' (2508 KB)...
OKAY [ 0.288s]
writing 'bootloader'...
FAILED (remote: flash write failure)
finished. total time: 0.491s
rebooting into bootloader...
OKAY [ 0.101s]
finished. total time: 0.102s
sending 'radio' (45409 KB)...
OKAY [ 1.618s]
writing 'radio'...
FAILED (remote: not supported in locked device)
finished. total time: 1.722s
rebooting into bootloader...
OKAY [ 0.057s]
finished. total time: 0.059s
archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
--------------------------------------------
Bootloader Version...: HHZ11k
Baseband Version.....: M8974A-1.0.25.0.23
Serial Number........: 06b8913ed008ba8b
--------------------------------------------
checking product...
OKAY [ 0.100s]
checking version-bootloader...
OKAY [ 0.098s]
checking version-baseband...
FAILED

Device version-baseband is 'M8974A-1.0.25.0.23'.
Update requires 'M8974A-2.0.50.1.16'.

finished. total time: 0.705s
Press any key to exit...


Please can anybody help me with my problem

Regards

Ruedi Hersche
27th August 2014, 05:16 PM   |  #4  
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Quote:
Originally Posted by brichardson1991

If you're on about photo's taken with the camera they will be in

/storage/emulated/legacy/DCIM
or /storage/sdcard0/DCIM

For photo's elsewhere this will depend on what you used to take them. where you placed them yourself and what not.

thanks for the info. i already looked into this directories. they where empty or rather there were dead symlinks.

it seems that i have a serious problem with the integrity of my file system!?
28th August 2014, 10:52 AM   |  #5  
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Quote:
Originally Posted by ruedihersche

I got the same problem with a Nexus 5 in boot loop after restarting the phone.

Did you reboot the bootloader after attempting to unlock it?
28th August 2014, 12:19 PM   |  #6  
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Quote:
Originally Posted by Lethargy

Did you reboot the bootloader after attempting to unlock it?

Yes I did, but as soon I do the command line "fastboot flash bootloader bootloader-hammerh
ead-hhz11k.img" it won't write and the phone locks again. See below

I am quite new to work with command line instruction and flashing the image. So I do really help. I just followed some instruction I found on the net.


Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Users\Ruedi>cd desktop

C:\Users\Ruedi\Desktop>cd androidFlash

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot oem unlock
...
OKAY [ 7.755s]
finished. total time: 7.757s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot erase boot
erasing 'boot'...
OKAY [ 0.215s]
finished. total time: 0.217s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot erase cache
******** Did you mean to fastboot format this partition?
erasing 'cache'...
OKAY [ 0.217s]
finished. total time: 0.219s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot erase recovery
erasing 'recovery'...
OKAY [ 0.218s]
finished. total time: 0.219s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot erase system
******** Did you mean to fastboot format this partition?
erasing 'system'...
OKAY [ 0.213s]
finished. total time: 0.215s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot flash bootloader bootloader-hammerh
ead-hhz11k.img
sending 'bootloader' (2508 KB)...
OKAY [ 0.288s]
writing 'bootloader'...
FAILED (remote: flash write failure)
finished. total time: 0.492s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot reboot-bootloader
rebooting into bootloader...
OKAY [ 0.001s]
finished. total time: 0.002s

C:\Users\Ruedi\Desktop\AndroidFlash>fastboot flash radio radio-hammerhead-m8974a
-1.0.25.0.23.img
sending 'radio' (42049 KB)...
OKAY [ 1.498s]
writing 'radio'...
FAILED (remote: not supported in locked device)
finished. total time: 1.602s

C:\Users\Ruedi\Desktop\AndroidFlash>
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