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Lg optimus l70-d321 bricked stuck on boot loot

Discussion in 'Android Devices' started by zonafyde602, Sep 25, 2014.

  1. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    Okay So I have an Lg Optimus l70 D321 and it appears to be bricked. I successfully rooted the phone but then I download this App called Chainfire 3D. After I used it, my phone restarted, but now it is stucked on the boot logo screen. The small LED flashes colors as normal, and when I connect the phone to my PC, my PC does make a sound.
    I have tried for hours trying to figure out how to fix this. I cannot figure it out.
    I have also tried using Volume (-) and power button commands, but the phone just turns off and reboots to the same boot logo.
    If you can help me, that would be awesome! Thank you.
     



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  2. XeVile

    XeVile Well-Known Member

    Is it unlocked with cwm installed? If you can't access download mode/fastboot it's a lost cause.
     
  3. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    I was able to get it to go into download mode. What do you recommend?
     
  4. XeVile

    XeVile Well-Known Member

    Go try unbrick guide
     
  5. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    Still new to this, is there a link? and how can i get the flash/rom to my phone?
     
  6. XeVile

    XeVile Well-Known Member

    http://androidforums.com/l70-all-things-root/864922-unbrick-twogbsds-simple-unbrick-guide.html
    There you go. Before posting you should always do a search.
     
    zonafyde602 likes this.
  7. You need unbrick instructions from google MS323 unbrick instructions. Download the firmware, the LG FLASH TOOL 2014, as well as the patched version of the LG Mobile Support tool. It failed on my Toshiba Satellite but was successful on Windows 8.1 with Intel Processor. The Corporate LG FLASH tool was unsuccessful as I was trying to recompile my rom from scratch and I missed the build.prop. I was stuck with a brick until I tried it with my other laptop and noticed it was successful. Install the drivers.
     
    zonafyde602 likes this.
  8. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    Okay I will try it woth another pc, now the firmware. Do i download the firmware they provide? I havent been able to find anything on my model of the LG Optimus. Which is LG-D321
     
  9. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    I have Cricket for my carrier, everything I find is for Metro PCS
     
  10. XeVile

    XeVile Well-Known Member

    http://androidforums.com/showthread.php?t=872116
    Follow this guide to download your KDZ for your device. I forgot to mention this. After downloading use that and follow above posted unbrick guide
     
    zonafyde602 likes this.
  11. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    thank you for all the information and help, I am not seeing my anything for <sw_url/> , but I posted in that forum about it.
     
  12. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    UGGGHHH this is annoying lol! Even using that method, it is still not showing my stock rom for my phone.
     
  13. XeVile

    XeVile Well-Known Member

    Hmm stock ROMs of other L70s were shared by sammyz over at the Official Unloved Device Hit Squad. You might as well ask him. Finding the ROM is really your only problem.
     
  14. zonafyde602

    zonafyde602 Newbie
    Thread Starter

  15. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    Now in regards to what they sent me, its a lot of stuff. But no KDZ file.
     
  16. XeVile

    XeVile Well-Known Member

    It's the source. This must be converted to a flashable file. Which in LG's case is KDZ. Unless you can do it yourself, you may request a member of the Official Unloved Device Hit Squad (OUDHS). If you are patient enough they might do it.
    If you do get the KDZ then follow the unbrick guide. Since your device is bricked already you may try the D320 KDZ. I would do so if put in this situation but I don't recommend it.
     
  17. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    It came with 3 ZIP Files and instructions. Let me know if you are familiar with any of this.
    1. Android build
    - Download original android source code ( kitkat 4.4.2 ) from Android Developers
    - Untar opensource packages of LG-D321_Android_KK_D321V10c_Android.tar.gz into downloaded android source directory
    a) cat LG-D321_Android_KK_D321V10c_Android.tar.gza* | tar -zxvpf -

    - And, merge the source into the android source code
    - Run following scripts to build android
    a) source build/envsetup.sh
    b) lunch
    c) 1 or Enter (default setting is 1)
    d) make
    - When you compile the android source code, you have to add google original prebuilt source(toolchain) into the android directory.
    - After build, you can find output at out/target/product/generic

    2. Kernel Build
    - Uncompress using following command at the android directory
    tar -xvzf LG-D321_Android_KK_D321V10c_Kernel.tar.gz
    - When you compile the kernel source code, you have to add google original prebuilt source(toolchain) into the android directory.
    - Run following scripts to build kernel
    a) cd kernel
    b) make ARCH=arm CROSS_COMPILE=../prebuilts/gcc/linux-x86/arm/arm-eabi-4.7/bin/arm-eabi- w5_aio_us_defconfig zImage
    - After build, you can find the build image(zImage) at arch/arm/boot

    3. how to build chromium_lge (vendor\lge\external\chromium_lge\src),
    please refer to README.txt at the folder mentioned above.
     
    AJfrmVegas likes this.
  18. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    OKay, think I will do that. Sorry I had replied on thread before reading this.
     
  19. XeVile

    XeVile Well-Known Member

    For doing that you need a build environment on your Linux system ready. You need to know how to use basic Linux cmdline commands. Haven't had the time to learn all that or even to setup a build environment. But familiar with some of the process.
     
  20. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    I installed Linux, I am just messing with it now.
     
  21. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    So much time I have spent trying to figure this out, but the good thing is, I learned a lot of new things!
     
  22. XeVile

    XeVile Well-Known Member

    Did you manage to unbrick it?
     
  23. Spz0

    Spz0 Android Expert

    Rofl. I cant believe they actually sent an end user the source code as a response. hahaha

    I'll mention it in OUDHS. Will also try to compile it. Im on cricket as well so a lot of these tweaks will not work as they are for MS323 and D320.
     
    zonafyde602 likes this.
  24. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    Dude that would be awesome! And Thank you and it's still bricked right now.
     
  25. zonafyde602

    zonafyde602 Newbie
    Thread Starter

    I do find it crazy that no one seems to have the stock Rom. But please keep me updated. Thank you very much.
     

LG L70 Forum

The LG L70 release date was April 2014. Features and Specs include a 4.5" inch screen, 8MP camera, 1GB RAM, Snapdragon 200 processor, and 2100mAh battery.

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