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  1. Thread Author  Thread Author    #1  

    Default [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju" (now Android 4.2)

    To start off, remember you can always download the factory stock images for the GSM Galaxy Nexus directly here:

    Factory Images for Nexus Devices

    For the purpose of this guide currently, we want the "takju" 4.2 (JOP40C) image.

    [HL]This will completely wipe your device, including /sdcard. Backup any data you wish to save by copying to your computer, uploading to Dropbox/Google Drive, or whatever your preferred method is.[/HL]

    Here are the GENERAL INSTRUCTIONS TO RESTORE THE STOCK IMAGES. Make sure you know how to do it for your computer/setup and that ADB and fastboot is set up on your computer. In addition, make sure you know how to type the commands in for your specific setup. For example, if you're using a superboot folder for Mac, you need to make sure you understand what your "version" of the "beginning" of the command is (usually "./fastboot-mac" if you're using that r3-superboot folder). For Ubuntu, be sure to put "sudo" before any and all fastboot commands.

    [INFO]
    First, download the 4.2 JOP40C image files to your computer. These specific files are found here.

    Second, extract the files from that downloaded file. Place those files in an easily accessible location, like your desktop or your downloads folder.

    Third, turn your phone off. Then, hold down volume up, volume down, and the power button at the same time to boot you into the bootloader. It should say "FASTBOOT MODE" in weird (red?) lettering on the screen. Make sure the phone is connected (by USB cable) to your computer.

    Note - you can also to do this in the terminal with an ADB command; make sure USB Debugging is checked (Developer Options) and your phone is plugged in. Simply type:

    Code:
    adb reboot bootloader
    Fourth, open up a terminal/command prompt on your computer.

    Fifth, using the command line, you need to "cd" or "change directory" to where your files are. This might be different depending on what computer you're on. If you are on Ubuntu and they are on the Desktop, do this:

    Code:
    cd Desktop
    If they are in your Downloads folder, then try this:

    Code:
    cd Downloads
    Then, "cd" or "change directory" again to the folder that you extracted (takju-jop40c I believe). So, it would be

    Code:
    cd foldername
    or
    Code:
    cd takju-jop40c
    (Double check this, because I do not have my folder in front of me at the moment)

    Sixth, once at the folder containing the goods, you need type in the following commands. Each command will flash a different component/image required to go to stock. You can copy and paste each command, but if they don't work type them in. There's a general "language" that's being spoken here, so as long as you understand that language you'll be able to get the general jibe of what's going on. Also, make sure each command is COMPLETE before going to the next.

    Check to make sure your computer recognizes your phone by typing:

    Code:
    fastboot devices
    If you're currently on a custom ROM or have unlocked your bootloader, skip this next step.

    If you are currently stock, and have yet to unlock your bootloader, then unlock your bootloader (again, this will completely wipe your device!):

    Code:
    fastboot oem unlock
    You will be prompted to accept the unlock on the screen. Select "Accept". Then reboot:

    Code:
    fastboot reboot-bootloader
    Now we get to the fun part, actually flashing the device. Again, in the command line:

    Code:
    fastboot flash bootloader bootloader-maguro-primelc03.img
    Code:
    fastboot reboot-bootloader
    Wait 10 seconds

    Code:
    fastboot flash radio radio-maguro-i9250xxlh1
    Code:
    fastboot reboot-bootloader
    Wait 10 seconds

    Code:
    fastboot flash system system.img
    Code:
    fastboot flash userdata userdata.img
    Code:
    fastboot flash boot boot.img
    Code:
    fastboot flash recovery recovery.img
    Code:
    fastboot erase cache
    Code:
    fastboot reboot
    And you're done! Boot up and sign into your Google Account. Enjoy Jelly Bean 4.2.[/INFO]

    [INFO]If you're restoring your device for a warranty replacement, or want to relock the bootloader, follow steps 7 and 8. (remember, locking the bootloader is not necessary to receive OTA updates, and if you ever want to flash the device again, you'll completely wipe the device again by unlocking.):

    Seventh, let the phone reboot COMPLETELY to the "Welcome" screen. Then turn the device off and get back to the bootloader (see the third step). Also, don't close the terminal/command prompt window, you still need it!

    Eighth, lock the device by using the following command in the terminal/command prompt, and then reboot the bootloader:

    Code:
    fastboot oem lock
    Code:
    fastboot reboot-bootloader
    You should now see "LOCKED" at the bottom of that bootloader screen on your device. If so, reboot the device:

    Code:
    fastboot reboot
    [/INFO]

    Credit for this guide goes out to dmmarck for his fantastic guide for the Verizon Galaxy Nexus, found here.
    Last edited by Andrew Martonik; 11-20-2012 at 01:01 PM.
    LG Nexus 5 / Galaxy S5 // T-Mobile / AT&T
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  2. #2  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    with this guide, can I change from yakjuxw to takju?
  3. Thread Author  Thread Author    #3  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by JogeFromFinland View Post
    with this guide, can I change from yakjuxw to takju?
    Precisely. Should clarify in OP that this will take your phone to stock takju no matter what your current build is (yakjuxu, yakjuxw, yakjujp, etc.).
    LG Nexus 5 / Galaxy S5 // T-Mobile / AT&T
    JogeFromFinland likes this.
  4. #4  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by martonikaj View Post
    Precisely. Should clarify in OP that this will take your phone to stock takju no matter what your current build is (yakjuxu, yakjuxw, yakjujp, etc.).
    Ok thanks because I still haven't received the 4.1 OTA. God damn you Samsung!! going to try this now. Thank you again.
    Andrew Martonik likes this.
  5. #5  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    I have a problem, I use Ubuntu, on step 6th, it says:


    aziz@ubuntu:~/takju-imm76i$ fastboot devices
    fastboot: command not found

    I've same problem on Windows.

    (I've also tried to enter with "sudo" before fastboot. but, same.)
    What should I do? Thanks.
    Last edited by 1aziz; 07-23-2012 at 05:31 AM.
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  6. #6  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by 1aziz View Post
    aziz@ubuntu:~$ cd takju-imm76i
    aziz@ubuntu:~/takju-imm76i$ sudo fastboot-devices
    [sudo] password for aziz:
    sudo: fastboot-devices: command not found
    aziz@ubuntu:~/takju-imm76i$
  7. #7  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Sloved! How can I delete my posts above? :-)
    Andrew Martonik likes this.
  8. #8  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Everything worked fine, although my heart started pumping when it didn't flash system because I hadn't unzipped the package inside the folder.

    Edit: Almost instantly got the notification of the 4.1 update. Nice!
    Andrew Martonik likes this.
  9. #9  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Sweet guide, thanks! This was my first Android flash, and I made it through without bricking anything.

    A link that might be helpful for n00bs such as myself: (USB driver)
    Android 1.0 driver problem? Check here.

    Also, when installing the Android SDK for adb & fastboot it's necessary to manually edit the PATH to point to the platform-tools folder. (This might be common knowledge, but it cost me some time, so I figured I'd post for other first-timers to see.)

    So far no OTA option to 4.1, but at least 4.0.4 is an improvement over the 4.0.1 I was stuck with before. Got the OTA, running 4.1 on Telus in Canada
    Last edited by theRKF; 07-23-2012 at 02:01 PM. Reason: Update
    Andrew Martonik likes this.
  10. #10  
    dmmarck's Avatar
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    Default

    Quote Originally Posted by theRKF View Post
    Sweet guide, thanks! This was my first Android flash, and I made it through without bricking anything.

    A link that might be helpful for n00bs such as myself: (USB driver)
    Android 1.0 driver problem? Check here.

    Also, when installing the Android SDK for adb & fastboot it's necessary to manually edit the PATH to point to the platform-tools folder. (This might be common knowledge, but it cost me some time, so I figured I'd post for other first-timers to see.)

    So far no OTA option to 4.1, but at least 4.0.4 is an improvement over the 4.0.1 I was stuck with before.
    The fastboot drivers, for whatever reason, are always the roadblock.

    For most users I recommend using a toolkit to set up the drivers, if only because it makes life a bit easier.

    Sent from my Galaxy Nexus using Xparent Cyan Tapatalk 2
  11. #11  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    anyone help me,
    at : fastboot flash system system.img
    I got an error " can not load "system.img"

    now my phone be locked (
    help me please
  12. Thread Author  Thread Author    #12  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by linhnv View Post
    anyone help me,
    at : fastboot flash system system.img
    I got an error " can not load "system.img"

    now my phone be locked (
    help me please
    Did you unlock the bootloader first?

    Have you unzipped the image file and put all of the files in the same directory as Fastboot and ADB?
    LG Nexus 5 / Galaxy S5 // T-Mobile / AT&T
  13. #13  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    yeah,I did, following your following your guide, but get the error "error: cannot load 'system.img'
    Can you please help me though skype ? my skype : linhnv.106
    thanks
  14. #14  
    dmmarck's Avatar
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    Default

    Quote Originally Posted by linhnv View Post
    yeah,I did, following your following your guide, but get the error "error: cannot load 'system.img'
    Can you please help me though skype ? my skype : linhnv.106
    thanks
    Try redownloading it and unzipping it again. Be sure you're rebooting the bootloader between commands.

    Sent from my Galaxy Nexus using Xparent Cyan Tapatalk 2
  15. #15  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    I just want to make sure that i can do this to my verizon phone and it will work. I have never unlocked my phone before and want to try this. i just want to make sure that if and when i do it all right it will connect back to the Verizon network. I should get the update Jelly bean update right. I just dont want to either brick my phone or do this for nothing at all.
  16. #16  
    dmmarck's Avatar
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    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by Jaschneid View Post
    I just want to make sure that i can do this to my verizon phone and it will work. I have never unlocked my phone before and want to try this. i just want to make sure that if and when i do it all right it will connect back to the Verizon network. I should get the update Jelly bean update right. I just dont want to either brick my phone or do this for nothing at all.
    No. This is not for your device. You do not have a GSM device, you have a Verizon device. The only way for you to get Jelly Bean is to unlock and flash a Jelly Bean rom.
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  17. #17  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    ok thank you for your time that is kind of what i thought.
  18. #18  
    dmmarck's Avatar
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    Quote Originally Posted by Jaschneid View Post
    ok thank you for your time that is kind of what i thought.
    No problem. Head on over to the Verizon section for your needs.

    Sent from my Galaxy Nexus using Xparent Cyan Tapatalk 2
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  19. #19  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Thanks a lot! Got it working.
    Andrew Martonik likes this.
  20. #20  
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    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    is this easier than the xda how to guide?? it seems to have less steps and I would like to take the easiest safest route.

    I have yakjuzs 4.0.4 build IMM76K

    I recall flashing only once before on my nexus one, dont recall how I did it but it was a success. Later on I ended up rooting it and bricked it lol Got the gnex after that and have gone stock but seeing as how it took several months to get 4.0.4 im not sure I want to wait for Samsung to push JB
  21. Thread Author  Thread Author    #21  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by nexus89 View Post
    is this easier than the xda how to guide?? it seems to have less steps and I would like to take the easiest safest route.

    I have yakjuzs 4.0.4 build IMM76K
    The guides are all pretty universal. There's no trickery or corner-cutting you can do on this. Its a pretty basic set of commands and it's all using the same language and images from the same Google servers.
    LG Nexus 5 / Galaxy S5 // T-Mobile / AT&T
  22. #22  
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    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Maybe its just me but I dont see this guide mentioning the install of drivers??

    Anyway I think I will give this step by step a try tomorrow after work!
  23. Thread Author  Thread Author    #23  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by nexus89 View Post
    Maybe its just me but I dont see this guide mentioning the install of drivers??

    Anyway I think I will give this step by step a try tomorrow after work!
    Drivers are necessary on Windows. Because the drivers can be very convoluted and troublesome, with so many factors coming into what ones to choose, I've yet to craft a definitive guide to driver setup. Also, many people are doing this on OSX and Linux, and don't need drivers at all.
    LG Nexus 5 / Galaxy S5 // T-Mobile / AT&T
  24. #24  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    where can I have yakjuxw factory image? I am from Indonesia
  25. Thread Author  Thread Author    #25  

    Default Re: [GUIDE] Return Your GSM Nexus to Stock / Flash to "takju"

    Quote Originally Posted by iwanrf View Post
    where can I have yakjuxw factory image? I am from Indonesia
    Google doesn't manage those images, so there's no official way to get them. Some people have hosted them on other sites.

    Why specifically do you need the yakjuxw image? I'm assuming you're returning to stock for a warranty replacement? If so, then its really not important that you put the yakjuxw image specifically. Just return it to stock with a plain yakju 4.0.2 or 4.0.2 image and lock the bootloader, they're not going to look into it that hard to see that it's yakjuxw.
    LG Nexus 5 / Galaxy S5 // T-Mobile / AT&T
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