Guide How To Flash A New Firmware LG L Prime Dual D337.

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Guide How To Flash A New Firmware LG L Prime Dual D337.


Flash / Install Firmware LG L Prime Dual D337. when this post about flash LG L Prime dual D337 is made, it is still very rare post available on the internet, so few references that I can share here to flash the LG L Prime D337 Dual. If you follow this post, I do not give any guarantee on your device, So Do it with your own risk. Now, follow how to flashing android device on LG L Prime Dual D337   with easy and simple stepFlashing in android is the same way like fresh install on the windows PC, So by perform a flash on Android you will give a new performance like a new phone. One reason that you should perform a flash your android is because your android get bootloop or when you failed to install Stock ROM Mod. 

This LG L Prime Dual D337 is the smartphone with 4,5 Inchi wide LCD, work on Android OS, v4.4.2 (Kitkat) and supported with Quad-core 1.3 GHz Cortex-A7 - H502 model, GPU Mali-400MP2 - H502 model, combined with 1 GB of RAM and 8 MP.

So, If you have any problems on LG L Prime Dual D337  bootloop or accidental LG L Prime Dual D337  is not installed recovery. In this guide I'm not offering recovery twrp or Cwm. CMW is a recovery that already in recovery mode for customization of the device such that the LG L Prime Dual D337  with a variety of additional functions in it such as backup / restore, installations and others that are not contained in the standard recovery mode. Generally, in case of a default recovery bootloop LG L Prime Dual D337  will go missing in case of bootloop. whereas the original recoery can not help when there hardbrick.

Now, follow the isntruction list bellow, do it with your own risk.

Requirement Tool For Flash LG L Prime Dual D337 .

Before you perform flash or install your firmware on LG L Prime Dual D337 , you must download all requirement tool below ;

  1. Download Driver LG:
    • https://app.box.com/s/f5kocmnhp9pr8kowr3dt
    • https://goo.gl/FK7VTc
  2. Firmware LG L Prime Dual D337 :
    • https://goo.gl/GS54JB
  3. LG FlashTool 2014:  
    • https://app.box.com/s/alckyp3h8nsse9lckwkl
    • http://www.4shared.com/zip/5__PEXGcba/LG_Flash_Tool_2014.html

Guide To Flash LG L Prime Dual D337

Please follow this guide carefully to flash LG L Prime Dual D337 . and your device must in download mode first,  ( visit this guide or see at the end of this post), download and extract all availbale tool above and save at easily accessible location.
  1. Make sure you have download all requirement tool above
  2. Then Instal Tool no. 1 & 3 on your PC or Laptop.
  3. Move the ROM File D33710d_00.kdz ke dalam folder LG Flash Tool 2014
  4. Now go to the LG Flash Tool 2014 folder, 
  5. Run LGFlashTool2014.exe
  6. If you cannot run LGFlashTool2014.exe, You must install Visual C++ Runtime Library, get here
  7. There are two options to flash your LG L Prime Dual D337.
    • Normal Flash : You can select this option if you want Flash ROM without losing any data. Only use this when you need to fix system error.
    • CSE Flash : You can choose this option when you need a fresh format. All data will be deleted. It's suitable for upgrading or downgrading ROM or simply use this when you need to back to Stock
  8. When the program opened, you can follow this step.
  9. At Select Type choose : CDMA
  10. At Phone Mode choose : DIAG
  11. At Reset Mode choose : 33000
  12. At Select KDZ file click the "folder icon" and select the ROM file  (D33710d_00.kdz)
  13. Then connect your LG L Prime Dual D337 to your computer or PC using Original USB Cable driver
  14. Remember :(You have enabled download mode at the first step oon your devices)
  15. On Lg FlashTool you have see 2 option : it is Normal flash and CSE Flash
    • When you choose Normal Flash : you will install a new firmware to your android devices, but in the simple way and you will not lose any data stored on your devices.
    • When you choose CSE : you will install a new firmware to your devices with deeper way, you may choose this option recomended to downgrade or upgrade your devices. Cause this option will erase all data clearly stored on your phone memory. And I think this is the best choice to the next step.
  16. Then this option will open new window, and now you can click start
  17. Follow the next step show on the screen, and click OK
  18. After clicking on OK button, it will open a new window in which to begin the installation of the new firmware to your devices.
  19. Just wait the process untill it finish.

Enter LG L Prime Dual D337 To Download Mode.

To enter LG L Prime Dual D337 in download mode, you can follow this guide :
  1. Remove batterei from your phone
  2. Plug USB cable to your PC
  3. Press and Hold volume UP Button, while cable plugs USB Cable from PC to your Phone
    flash LG L Prime Dual D337
    flash LG L Prime Dual D337
  4. Then will appear white note on your LG L Prime Dual D337  phone, if you see this you can releasa Volume UP button.
  5. Press and hold volume UP Button on your LG L Prime Dual D337  phone again, until you see FIRMWARE UPDATE message.
  6. If your phone has been detected in your PC (to make sure, click the monitor icon beside Read Phone Information button, this action will open device manager windows. If your phone was detected you can see this at the top)
  7. Click START, and you will see dialogue box, just click OK
  8. Wait for the flash process, it will run in approximately 5 minute and your  LG L70, L70 LG Dual D325 will restart itself
  9. Then your LG L Prime Dual D337  phone will boot up, if you can see Welcome Screen, it's mean Flashing process is successfully.
  10. Unplug USB cable, and finish
  11. Now your LG L Prime Dual D337 is installed new firmware.


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