How to Factory Reset MID9042?

Discussion in 'Coby Generation 3' started by 5arid, Nov 30, 2013.

  1. 5arid

    5arid Member

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    I have a MID9042 which was working until last time which I turned it off as usual but now it doesn't boot at all
    It just gets stuck at Android logo no matter how long I wait
    There is a Reset hole on the side, I tried to push it with a pin but it didn't help either
    I started to google and I found out that it is somehow a common problem and the solution is "Factory Reset"
    I found this info :

    In step three :
    3. RELEASE the “-“ key and press the “ ” key on the volume control
    what is “ ” key anyway?
    Is it a typo?
    I tested different keys but none of them worked
    Someone help me please.
    Any help would be appreciated, thanks.
     
  2. tpaine

    tpaine Senior Member

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    Using the hard key buttons can be difficult. You are on the right track. I don't have a 9042, but keep trying key combinations and you will figure out the sequence.

    More info here:

    http://www.androidtablets.net/forum...-do-i-factory-reset-my-tablet.html#post297292


    It looks like the " " refers to Any Key. Sometimes recovery will display with no text, just the robot on his back. touch any key to display text. If you don't see the robot, you are not in recovery.
     
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  3. 5arid

    5arid Member

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    Thanks for the link
    I am testing with different key combinations and still nothing happens on the tablet.
    I feel a great pain in my fingers though!

    I am thinking about this line from your link :
    And this line from the tutorial which I found :
    Aren't they in conflict with each other?!
    Maybe the first one is Blue Logo of Android and the second one is a Android Green bot?!
     
  4. 5arid

    5arid Member

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    Ok, I just found out how to enter the Reset Factory menu :
    It seems when tablet is low on battery this menu won't come up
    To bring up this great menu on MID9042 : Hold POWER and + Key at the same time for about 15 secend!
    I continued with "wipe data/factory reset > Yes" and then "reboot system now"
    But still the main problem is not solved and tablet won't go any farther than Android blue logo!!!!!!!!
    Any idea?!
     
    Last edited: Nov 30, 2013
  5. 5arid

    5arid Member

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  6. tpaine

    tpaine Senior Member

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    Yes, it is safe to use. Good research. Give it a try.
     
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  7. 5arid

    5arid Member

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    Nope, it didn't work either!
    For permissions.zip it gives an error about permission
    I could install permissions_signed.zip (renamed to update.zip) but it didn't solve the problem
    The tablet still gets stuck on Android blue logo
    Any other idea?

    In this thread :
    Help, COBY Kyros MID8042 stuck on 'Android' logo
    tpaine said :
    Any more info about this method?

    I found another related file :
    9042_recovery_signed
    It is from this thread :
    Coby Kyros MID9042 Stock ROM
    Is it safe to apply it to my tablet?
     
    Last edited: Dec 1, 2013
  8. tpaine

    tpaine Senior Member

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    Is your tablet stock ? That is stock recovery and stock rom ? Did you have android debugging set in settings ?

    Without a custom recovery and/or debugging set, your best chance to restore you tablet is the 9042_recovery_signed.zip if you can install from stock recovery.

    This installs a cwm custom recovery which will allow you to install different roms. First thing to do after install is backup your current (non-booting) rom.



    I had to eat my words over livesuite. Should not have written "only" as later replies in the thread showed.
     
    Last edited: Dec 1, 2013
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  9. 5arid

    5arid Member

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    My tablet is stock and I have never messed it up with rooting stuff
    Yeah, I can install 9042_recovery_signed.zip from SD card but when I reboot the tablet it still gets stuck at Android logo so I can't access to or enable usb debug option!

    For now I am reading about this guide and it seems promising :
    Flash Firmware via Livesuit
     
  10. tpaine

    tpaine Senior Member

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    Did you use the keys to enter recovery ? If so, what do you see at the top of the screen ?
     
  11. 5arid

    5arid Member

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    Do you mean after installing 9042_recovery_signed.zip?!
    I didn't notice any change
    Let me do the process again and see what is there!

    It says :
    Android system recovery <3e>
    Android system recovery utility (coby: back/menu, home, power)
    reboot system now
    apply update from external storage
    wipe data/factory reset
    wipe cache partition
    apply update from cache

    By installing 9042_recovery_signed.zip it says :
    --Install /sdcard
    Finding update package
    Opening update package
    Verifying update package
    Installing update
    [ ] Updating BOOT
    [*] Complete!
    Install from sdcard complete
     
    Last edited: Dec 2, 2013
  12. tpaine

    tpaine Senior Member

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    Try installing this again. Post your results.
     
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  13. 5arid

    5arid Member

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    Should I see anything other?
    Can you tell me what exactly should I do?
    It seems LiveSuit is somehow infamous so I try to avoid it as long as there is another way to revive my tablet
     
  14. tpaine

    tpaine Senior Member

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    What the 9042_recovery_signed file is supposed to do is install cwm recovery on your tablet. If you can get that recovery to replace the stock 3e recovery, you can install stock or custom roms.

    Post your problem to the thread where you got the file:

    http://www.androidtablets.net/forum...-coby-kyros-mid9042-stock-rom.html#post299201


    You can ask vampirefo, who posted the file, about your tablet there.
     
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  15. 5arid

    5arid Member

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    OK, I managed to revive my dear COBY MID9042
    Our Chinese brothers really know how to revive a tablet
    Here what I did at the end :
    Follow this tutorial EXACTLY :
    Flash Firmware via Livesuit
    And use this img :
    sun4i_crane_mid9042_120701_v2.img
    Thanks everyone who helped me
     
    Last edited by a moderator: Jun 27, 2014
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