COBY KYROS MID9042-8 Workshop (Root, Dump, Restore)

Discussion in 'Coby Generation 3' started by 5arid, Dec 12, 2013.

  1. 5arid

    5arid Member

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    Location:
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    Tablet / Device:
    MID9042

    COBY KYROS MID9042-8


    $Front.jpg


    A. Specifications
    Name : COBY KYROS MID9042-8
    OS : Android 4.0 Ice Cream Sandwich
    CPU : 1GHz Allwinner ARM Cortex A8
    RAM : 1GB
    LCD : 9 inches 1280 x 800
    Internal storage : 8GB Flash
    External storage : microSD (max 32GB)
    Wi-Fi : 802.11b/g/n
    Camera : 0.3MP

    B. Disclaimer
    Use these tutorials at your own risk!
    These tutorials are only for MID9042 and nothing else!
    I don't take any responsibility for bricking your tablet!
    You have been warned!


    C. Purpose of these tutorials
    Most of these tutorials and tools are scattered around in the forum.
    But some of them are hard to find while others are for linux users which are complicated for Windows users.
    I just gathered them in one place and added my own exprience to them for future refrence.
    For the following tutorials I suggest you to use Windows 7.
    All credit for the tools goes to their authors, thanks to their hard work.
    By the way english is not my native language, so if you find any grammatical mistake or even any technical mistake please remind me, I will correct it ASAP.

    D. How to solve Boot Loop problem
    Boot Loop is very common problem among tablets and it is caused by a variety of unknown reasons!
    But most of the time it is caused by a corrupted data on the firmware or software of the tablet.
    On this point the tablet gets stuck on the blue Android logo.
    There are some solutions to fix this issue, so you should test them one by one :
    *. Factory Reset
    *. Installing permissions.zip or permissions_signed.zip from microSD
    *. Installing a new stock ROM through CWM
    *. Using LiveSuit as a last resort (Stay away from this tool as much as you can)
    Follow the tutorial to find out how to use them

    E. How to Enter "Android system recovery <3e>"
    1. Back up your important data from the tablet if you can
    2. Turn off the tablet completely and wait 10 seconds
    3. Press and hold "power" and "+" for about 15 seconds
    4. A green Android robot with a triangle exclamation appears, now you can release all the buttons
    5. Push "+" to see the "Android system recovery <3e>" menu
    6. In this menu you can use "-" for going down, "+" for going up, "power" for selection
    7. To exit from "Android system recovery <3e>" select "reboot system now"
    Note : Make sure the tablet has enough battery charge before begining
    Note : While holding "power" and "+" for about 15 Seconds If you see the blue Android logo you fail on entering the recovery menu and you need to turn off the tablet and start from the beginning
    Note : If after some trial and error you can't enter "Android system recovery <3e>", use "power" and "-" instead of "power" and "+"

    F. How to perform Factory Reset
    1. Back up your important data from the tablet if you can
    2. Enter "Android system recovery <3e>" menu
    3. By pushing "-" go down to "wipe data/factory reset"
    4. Push "power" to select it
    5. Go down to "YES" and select it and wait for the proccess to finish
    6. select "reboot system now"

    G. How to install ADB Driver
    1. Back up your important data from the tablet
    2. On the tablet go to Settings->Developer Options and enable USB debugging
    3. Connect the tablet to the PC but don't turn on USB storage
    4. Download and extract "Coby_Gen3_USB_Driver.zip" to your pc
    5. Go to "Device Manager", you should see unknown driver of "Android" under "Other Devices"
    6. To install the driver follow this :
    Right Click --> Update Driver Software --> Browse my computer --> Let me pick --> Have Disk --> Browse --> Coby_Gen3_USB_Driver\Vista-Win7 --> android_winusb.inf --> Android ADB Interface --> Install
    7. If you do it right you should see "Android ADB Interface" under "Android Phone" in the device manager
    8. Reboot PC

    H. How to Root
    1. Back up your important data from the tablet
    2. Perform factory reset and reboot the tablet
    3. Make sure ADB Driver is installed correctly on the PC
    4. Make sure USB debugging is enabled on the tablet
    5. Connect the tablet to the PC but don't turn on USB storage
    6. Download and extract "CobyADB.zip" to your PC
    7. Navigate to CobyADB folder and run root_restore.bat
    8. Type r and hit Enter
    9. Type 7042 and hit Enter
    10. Type y and hit Enter
    11. During the process don't interrupt it and wait for it to finish
    12. Type b and hit Enter to reboot the tablet
    13. After reboot you will have a rooted tablet, don't test anything on it just go stright to dumping proccess first!

    I. How to Dump
    1. Make sure ADB Driver is installed correctly on the PC
    2. Make sure "USB debugging" is enabled
    3. Connect the tablet to the PC but don't turn on USB storage
    4. Navigate to CobyADB folder and Run root_restore.bat
    5. To select "Dump System Files" type d and hit Enter
    6. To start the process type y and hit Enter
    7. During the process don't interrupt it and wait for it to finish
    8. Type y and hit Enter to reboot the tablet
    9. Type q and hit Enter to close the utility
    10. A "dump" folder is created inside of "CobyADB" folder
    11. Check inside of "dump" folder you should see these files : system.tgz, recovery.img, bootloader.img, boot.img
    12. These files are very important, so pack them all into a rar file and upload it somewhere so that you will never lose them
    13. If you want to help the community post your download link here as it can save someone's tablet

    J. How to Install ClockWorkMod Recovery (CWM)
    1. Back up your important data from the tablet if you can
    2. Boot into "Android system recovery <3e>"
    3. Perform factory reset
    4. Download and copy "9042_recovery_signed.zip" into a microSD and insert it into the tablet
    5. Select "apply update from external storage" and install "9042_recovery_signed.zip" and wait for the process to finish
    6. Select "reboot system now"
    7. From now on "Android system recovery <3e>" is replaced by "CWM-based Recovery v6.0.2.8 9042 by Vampirefo"

    K. How to Restore a ROM
    1. Download one of the available ROMs and extract it somewhere on your PC or use your own stock ROM
    2. You should see these files : system.tgz, recovery.img, bootloader.img, boot.img
    3. Extract system.tgz
    4. Delete recovery.img (of course keep a back up somewhere else)
    5. Download and extract "META-INF.zip"
    6. Pack META-INF ,system, bootloader.img, boot.img into a single zip file and rename it to MID9042.zip (Example)
    7. Back up your important data from the tablet if you can
    8. Boot into "ClockWorkMod Recovery"
    9. Perform factory reset
    10. Put your prepared ROM into a microSD and insert it into the tablet
    11. Select "apply update from external storage" and install "MID9042.zip"
    12. Go down to "YES" and select it
    13. select "reboot system now"
    Note : If you feel uncomfortable with preparing the ROM, you can download and install this "MID9042.Google.Play.Store.v1.0.by.5arid.zip" which is ready to install and has the "Google Play Store"

    L. Available ROMs
    joenarsu12
    coby_kyros_9042_dump.zip - [Mirror Link]
    Build Number : 20120828.130802

    bfoley66
    Coby_Kyros_MID9042-8.zip - [Mirror Link]
    Build Number : 20120523.144753

    Anthony0903
    MID9042-8.zip - [Mirror Link]
    Build Number : 20120523.144753

    manueld64
    9042-8_dump.zip - [Mirror Link]
    Build Number : 20120523.144753

    slash
    dump_of_coby_mid9042.rar - [Mirror Link]
    Build Number : 20120523.144753

    leemarkpo
    MID_9042.zip - [Mirror Link]
    Build Number : 20120828.130802

    M. LiveSuit the last resort
    1. Stay away from this tool as it is badly infamous for bricking the tablets instead of repairing them!
    2. Download "sun4i_crane_mid9042_120701_v2.img"
    3. Download and extract livesuit 1.11.rar to your PC
    4. Run LiveSuitPack_version_1.11_20120724_2.exe and install the driver
    5. Check "Device Manager", you should see a new unknown driver "VID_1f3a_PID_efe8"
    6. Run LiveSuit.exe and it asks you if you want to be guided through the process, select NO
    7. Click on "Select IMG" and choose "sun4i_crane_mid9042_120701_v2.img"
    8. Turn off the tablet completely
    9. Press and hold "+", then connect the tablet to PC
    10. Keep holding "+" and press "power" repeatedly every one second untill a popup massage shows on the PC (it should take about 10 seconds)
    11. Now you can release the buttons
    12. Choose "Yes" for performing forced firmware update
    13. If you're sure choose "Yes" again
    14. During the process don't interrupt it and wait for it to finish
    Note : Flashing an inappropriate img brick your tablet completely so please think twice before using LiveSuit!

    N. How to install Google Apps
    1. Install and run "Root Explorer.apk"
    2. Navigate to ROOT/system/app
    3. On the top left hand you should see something like this "220MB used, 30MB free"
    4. Delete the following files until you get at least 50MB free space :
    aldiko-oem-2.00.151.apk
    Browser.apk
    Browser.odex
    Calculator.apk
    Calculator.odex
    Calender.apk
    Calender.odex
    CalenderProvider.apk
    CalenderProvider.odex
    cobyyoutube-sign.apk
    com.ut.emusic-sign.apk
    Contacts.apk
    Contacts.odex
    ContactsProvider.apk
    ContactsProvider.odex
    DeskClock.apk
    DeskClock.odex
    DownloadProviderUi.apk
    DownloadProviderUi.odex
    Email.apk
    Email.odex
    es_file_explorer_v1_6_1_0.apk
    ES_TaskManager.apk
    Exchange.apk
    Exchange.odex
    Gallery2.apk
    Gallery2.odex
    GetJar_cobyusa_getjar_com_2011_09_09-sign.apk
    LiveWallpapers.apk
    LiveWallpapers.odex
    LiveWallpapersPicker.apk
    LiveWallpapersPicker.odex
    Music.apk
    Music.odex
    MusicFX.apk
    MusicFX.odex
    Phone.apk
    Phone.odex
    QuickSearchBox.apk
    QuickSearchBox.odex
    TelephonyProvider.apk
    TelephonyProvider.odex

    5. Turn off the tablet
    6. Boot into "ClockWorkMod Recovery"
    7. Download and extract "gapps-ics-20120429-signed.zip" and put it into a microSD and insert it into the tablet
    8. Select "install zip from sdcard" then "choose zip from sdcard" and install "gapps-ics-20120429-signed.zip"
    9. Select "reboot system now"
    10. After reboot you should have Play Store icon in your apps

    O. How to install Modded Google Play Store
    1. Run Root Explorer and navigate to ROOT/system/app and delete the following files to make some free space :
    FaceLock.apk
    GalleryGoogle.apk
    GenieWidget.apk
    GoogleCalendarSyncAdapter.apk
    GoogleContactsSyncAdapter.apk
    GoogleQuickSearchBox.apk
    Talk.apk
    VoiceSearch.apk

    2. Connect the tablet to the internet
    3. Run Play Store and add your google account
    4. Install and run "Lucky Patcher.apk"
    5. From "Toolbox" select "Install modded Google Play Store"
    6. Select "Modded Google Play 4.1.6" and then hit "Install " button
    7. After installation the tablet will reboot
    8. Disconnect the tablet from the internet
    9. Run Lucky Patcher and from "Toolbox" menu select "Test the modded GooglePlay"
    10. If you do it right you should see this massage "Google Play is installed and working properly."

    P. How to run Ubuntu on Android
    1. Download "Ubuntu-1304-Small-v1.zip" and put it here : sdcard/ubuntu/ubuntu.img
    2. Download and install "Android Terminal Emulator.apk"
    3. Download and install "Android VNC Viewer.apk"
    4. Download and install "Complete Linux Installer.apk"
    5. Enable USB debugging on the tablet
    6. Run Complete Linux Installer and go to Lunch
    7. Select ubuntu if it is not selected
    8. Hit edit config button and change the resolution to 1280x750 then hit back
    9. Hit lunch, you will see the terminal running
    10. Type "y" for the question which want to verify the hash of the img
    11. Type "ubuntu" for password
    12. If everything goes well you should see root@localhost:/#
    13. Let the terminal runs and hit home button
    14. Run Android VNC Viewer
    15. Fill out these info : Nickname : yourname / Password : ubuntu / Address : localhost / Port : 5900
    16. Change "Color Format" to 24-bit colour
    17. Hit connect, and you should see the XDFL desktop of ubuntu
    18. In settings select "input mode" and set it to "touchpad"
    19. Slide your finger on the screen to control the mouse pointer
    20. From settings choose "send text" to type anytext by using a virtual keyboard
     
    Last edited: Jun 28, 2014
    • Like Like x 4
  2. jpdesuasido

    jpdesuasido Member

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    Location:
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    Tablet / Device:
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    Hi sir is the "Restore a ROM" tutorial will work on COBY MID9740? PS: I have the needed files on it (dump files) and all I need is to make sure that it is safe :)

    Thanks
     
  3. 5arid

    5arid Member

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    @ jpdesuasido
    I have no idea but you should find a tutorial for your tablet
    Read some sticky topics to find out
     
  4. BlueZangetsu

    BlueZangetsu Junior Member

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    I got to the rom step and decided to try and just use the pre-done rom that you provided however it causes my Kyros to get stuck in a boot loop
     
  5. kevinthefixer

    kevinthefixer Member Developer

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    Hopefully you did not try the livesuit thing. Either way read the stickies in the development threads.
     
  6. BlueZangetsu

    BlueZangetsu Junior Member

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    I did not, I'm not sure how they would help fix a boot loop that has to do with a specific rom
     
  7. Traveller

    Traveller Super Moderator Staff Member

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    Tablet / Device:
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    There is a link in the stickies which lead to instructions on how to restore a tablet using the system dump that should have been made during the rooting process. If you can't find it in the stickies you'll have to search in the development sub-forum.
     
    • Like Like x 1
  8. vampirefo.

    vampirefo. Senior Member Developer

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    You installed "MID9042.Google.Play.Store.v1.0.by.5arid.zip" ? if so your tablet maybe be different tablet than arid's tablet. Hopefully you made a backup or dump, if not then you will have to try the available dumps til you find one that works on your tablet.
     
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  9. BlueZangetsu

    BlueZangetsu Junior Member

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    I checked and it was the same tablet so idk what could have gone wrong.
     
  10. Traveller

    Traveller Super Moderator Staff Member

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    What vampirefo is talking about is the fact Coby routinely changed the insides of the tablet. Therefore your 9042 could be different from 5arid's device. There's no way to tell from the outside, so just looking at it does no good.
     
    • Like Like x 2
  11. 5arid

    5arid Member

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    @ BlueZangetsu
    Please explain your situation exactly :
    Do you have your own dump files?
    Did your tablet have boot loop problem before?
    Did you try to use other stock roms?
    Why did you want to install a new rom anyway? To fix bootloop? To have Google play? For Fun?!
     
  12. BlueZangetsu

    BlueZangetsu Junior Member

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    I was going through the steps you listed to root it and install a rom with Google Play store on it
    I believe I do since I followed your steps to the T
    It did not
    I haven't yet because school has gotten hectic with exam week coming up
    I wanted to have Google Play since the app store that came installed is shitty
     
  13. 5arid

    5arid Member

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    I am glad that you could dump your own stock rom
    Please upload it somewhere and share it here
    Then use your own dump to make the table up and running
    For installing the Google Play just continue the tutorial
     

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