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Nexus 7 (2012) - Reset Factory settings - Error messages

Discussion in 'Nexus Tablets' started by Dan OPKS, Aug 16, 2014.

  1. Dan OPKS

    Dan OPKS Member

    Messages:
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    Devices:
    Nexus 7 (2012)
    My tablet is running Kit Kat (4.4.2 ... I think) and hasn't experienced any problems until a couple days ago. After running fine all day, and later when trying to turn it back on, the tablet wouldn't boot up and just stayed in the screen with the dancing colored balls. I tried the soft reboot (multiple times) by holding the power button down for 30 seconds but no change with the boot process. So I shut down the tablet by holding down the power button and the down volume button to go find out what I needed to do.

    My options appeared to be that I could pull the back off the tablet to unplug the battery or do a factory reset. So I chose to try the factory reset process using the manual hold down the power button and down-volume button to get to the menu to select the Recovery mode.

    When I selected the "Recovery mode" and pushed the power button and up-volume button together the Android system recovery menu appeared with the (4) options; reboot system now --- apply update from ADB --- wipe data/factory reset --- wipe cache partition, as expected. But down at the bottom of the screen the following lines were displayed:

    E:failed to mount /cache (Invalid argument)
    E:Can't mount /cache/recovery / log
    E:Can't open /cache/recovery / log
    E:failed to mount / cache (Invalid argument)
    E:Can't mount /cache/recovery/last_log
    E:Can't open /cache/recovery/last_log
    E:failed to mount /cache (Invalid argument)
    E:Can't mount /cache/recovery/last_install
    E:Can't open /cache/recovery/last_install
    E:failed to mount /cache (Invalid argument)​

    I chose to run the "wipe data/factory reset" command and selected the Yes - wipe all user data to begin the process and got the following:

    --Wiping data...
    Formatting /data...
    E:failed to mount /cache (Invalid argument)
    Formatting /cache...
    E:failed to mount /cache (Invalid argument)
    E:Can't mount /cache/recovery / log
    E:Can't open /cache/recovery / log
    E:failed to mount / cache (Invalid argument)
    E:Can't mount /cache/recovery/last_log
    E:Can't open /cache/recovery/last_log
    E:failed to mount /cache (Invalid argument)
    E:Can't mount /cache/recovery/last_install
    E:Can't open /cache/recovery/last_install
    Data wipe complete.
    E:failed to mount /cache (Invalid argument)
    E:Can't mount /cache/recovery / log
    E:Can't open /cache/recovery / log
    E:failed to mount / cache (Invalid argument)
    E:Can't mount /cache/recovery/last_log
    E:Can't open /cache/recovery/last_log
    E:failed to mount /cache (Invalid argument)
    E:Can't mount /cache/recovery/last_install
    E:Can't open /cache/recovery/last_install
    E:failed to mount /cache (Invalid argument)
    So with the displayed results, see above, I couldn't tell exactly if the reset worked or not and when I rebooted the system, the tablet doesn't boot up and the screens go from the Google splash screen to the dancing colored balls back to the Google splash screen then to the dancing balls and etc. about every (10) seconds.

    I also ran this factory reset multiple times and I ran the "wipe cache partition" after the factory reset multiple times too. All with no change, thus I am sending this request for help...

    I don't know what to do next and whether this system is no longer usable, which doesn't appear to be the case but any help would be appreciated.

    Dan
     
  2. Rob Triggs

    Rob Triggs Administrator Staff Member Battle Droid

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    Devices:
    Galaxy S2 (PA 4.4), LG G3
  3. Dan OPKS

    Dan OPKS Member

    Messages:
    5
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    Devices:
    Nexus 7 (2012)
    Hmmm.. You could try a reinstall of the stock OS.
    https://developers.google.com/android/nexus/images

    Rob,

    Thanks for the recommendation and I have a couple of follow-up questions.

    I haven't rooted the tablet, so would that process be required as part of the reinstall work to the stock OS?

    Since this is a Nexus device made by ASUS, does the replacing the OS need additional stuff directly related to Nexus and ASUS, i.e. proprietary type of drivers and etc.?

    Also, does this take the OS back to OS version 4.1 that came with the tablet or can the Kit Kat ver. 4.4.x be directly reinstalled?

    Lastly, would the Google SDK software be better to use than the "Nexus Root Toolkit"?

    Thanks again for the assistance,
    Dan
     
  4. phartgejr

    phartgejr Member

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    Devices:
    Nexus 7, Samsung Galaxy S 4
    Dan, were you able to solve your issue? I'm having the same problem
     
  5. Dan OPKS

    Dan OPKS Member

    Messages:
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    Devices:
    Nexus 7 (2012)
    Not yet, I tried the Flashboot process using the Android SDK software and it always hangs up on the process with "writing recovery..." So I exited that process and tried the Nexus Root toolkit vs. 1.8.6 and try to use the Advanced Utilities / Custom Recovery (which runs TWRP ... TeamWinRecoveryProgram) the information on this application indicates that the SSD storage drive (partitions) is not mountable. So I am now trying to determine if this tablet is dead due to the SSD memory/storage drive not functioning...but I think I already know the answer as Yep it's dead!

    One thing I had a lot of trouble doing was getting the ASUS Nexus 7 USB drivers for Windows 7-64 to load up and really only got it to recognize the device as an Android Phone, so I don't know if that added to my troubles when just using those drivers?

    Hope this helps and sorry for the late reply/update on my results.
    Dan
     
  6. ernigeek

    ernigeek Member Droid Minion

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    Devices:
    Note 3 SM-N9005; Nexus 7 2012&2013 both 3g/4g; Samsung Galaxy Note 2014 4g
    had the same problem... did you format system and data and cache over fastboot commands?
    That always brought my nexus back!
    Hope i could help you... please do not hesitate to ask for additional help/information!
     
  7. phartgejr

    phartgejr Member

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    Devices:
    Nexus 7, Samsung Galaxy S 4
    Thanks Eringeek. I've been trying to use the fastboot command to do a factory restore. It hasn't been working though. I keep getting the message "error: failed to load 'bootloader-grouper-3.41.img'" even though that file is in the folder I'm working in. Any ideas?
     
  8. ernigeek

    ernigeek Member Droid Minion

    Messages:
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    Devices:
    Note 3 SM-N9005; Nexus 7 2012&2013 both 3g/4g; Samsung Galaxy Note 2014 4g
    Can u post the command you're using?
    and did you try 'fastboot format userdata/system/cache'?
     
  9. phartgejr

    phartgejr Member

    Messages:
    3
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    Devices:
    Nexus 7, Samsung Galaxy S 4
    I used "flash-all". I've also tried "fastboot flash bootloader bootloader-grouper-3.41" and received an error saying "cannot load 'bootloader-grouper-3.41'
     
  10. ernigeek

    ernigeek Member Droid Minion

    Messages:
    173
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    23
    Devices:
    Note 3 SM-N9005; Nexus 7 2012&2013 both 3g/4g; Samsung Galaxy Note 2014 4g
    So you didn't try to format system and data partition manually? Or am I getting this wrong? Sorry if!
    Anyway please be more precise there... good luck!
     
    Last edited: Sep 6, 2014
  11. ernigeek

    ernigeek Member Droid Minion

    Messages:
    173
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    23
    Devices:
    Note 3 SM-N9005; Nexus 7 2012&2013 both 3g/4g; Samsung Galaxy Note 2014 4g
    Any updates here? About your tablet, problem... etc?
     
  12. Ch Siva Prasad

    Ch Siva Prasad Member Scrap Metal

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    Devices:
    Samsung Galaxy S Duos
    I used to have a nexus 7 and recently shifted to tab s8.4. Now, I am hungry for stock. Its tO horrible to use touchwiz after habituated to stock
     
  13. pspirn

    pspirn Member Scrap Metal

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    Devices:
    Nexus 7 (2012), Nexus 7SIM (2012), Nexus 10
    Mr. Triggs,
    I have two Nexus 7 (2012), one with SIM card, the older one without. The older unit stopped working last night: every app I opened closed immediately. Several attempts to Power Off/Power On put me in the boot loop which went on interminably. Tried hardware (Power and Volume buttons) factory reset/data wipe several times, followed by Cache Wipe. Still stuck in boot loop. Any ideas? Thanks very much, Paul
     
  14. Lenin Frantz

    Lenin Frantz Member Scrap Metal

    Messages:
    1
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    Devices:
    Nexus 7 2012 wifi 32gb
    Same issue with me .. bootloader error did any one find a fix am so mad tryed everything out nothing is working ...
    DO i have to use it as a paper weight .. help will be appreciated guys
     
  15. qualiter

    qualiter Member Scrap Metal

    Messages:
    1
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    Devices:
    Neus 7, Acer E350
    Same problem here: my Nexus 7 32 Gb WiFi (2012) does not boot anymore.
    Messages are identical and wiping all data, as well as cache did not solve the issue
     
  16. aj20010319

    aj20010319 Moderator Sentient Droid

    Messages:
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    Devices:
    Vido M9i ( Dual Boot)
    You need to flash a new ROM. TO do that follow the steps below:
    Download the correct system image for your device then you will need to unzip it in the platform-tools directory. Plug your device into your computer via USB (adb debugging enabled). Next you have to get your device into fastboot mode. Use the adb tool cmd terminal window while the device is powered on and type into terminal: adb reboot bootloader. You can also enter the bootloader by powering off your device then turn it back on and press and hold the volume down button and hold the power button down at the same time until the tablet turns on. That will get you into fastboot mode also. Other nexus devices have different key combinations to enter into fastboot mode from a powered off state.

    Then type into the cmd window terminal: flash-all and hit enter. You can also double click the flash-all file to start the flash process. It will then re-install the orginal bootloader, baseband firmware, & operating system restoring you back to completely factory stock condition.
     
    Last edited: Apr 4, 2015
  17. aj20010319

    aj20010319 Moderator Sentient Droid

    Messages:
    1,257
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    Devices:
    Vido M9i ( Dual Boot)
    Check out this video, complete instructions are given:
     
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