[LG Optimus 4X HD] xavierleonelbr:
My friends,

Some colleagues like to flash and restore roms too in developer devices (not for sale) like all did with KDZ updater everyday.

The question is: If KDZ isn't working with developer devices, then how we can flash it? How can we unlock it?

I discovered some things:

1 - KDZ is a encrypted file.

2 - Developers device has unlocked bootloader.

3 - I've tried many ways to flash kdz in this device, but it never concludes the process, never worked. It stops on "wparam=2010 iparam=18". There are diferents parameter varyating for each developer phone.

4 - We have to discover a new way to flash in this device, or we can decrypt the KDZ file.

*BINGO!* I DIT IT! :D

How to FLASH and Unbrick LG P880 Developer Edition

This procedure applies only for the initial LG P880 Developer Edition.

But how to know if your device is this version? :confused:

First, remove the back cover of your device and search for the words "not for sale". Then (if your phone still works), go to settings> about phone> Software Version. If the version of your device starts with the code V09a, V09b, V09c, etc. - This is a sign that your phone is the developer version!

This means you can not flashing KDZ files through the official LG updater. Even if you download the file separately, the only thing you will achieve is to brick your phone.

But our problems are over! I came to save you!:thumbup:

Procedure:

First, download the KDZ file of your choice here: http://lg-phone-firmware.com/index.php?id_mod=15

Second, download this firmware pack with DZ. File and proper .DLL File: http://bayfiles.com/file/bRZx/AZaxbu...GP880.v10A.rar

Third, download this drivers:

http://csmg.lgmobile.com:9002/swdata...er-4.10(2).zip

http://csmg.lgmobile.com:9002/data/L...in7_LGEAll.zip

Fourth, download LG Flash Tool:

http://www.mediafire.com/?pzqr0gsw8u9erxl

We will definitely erase any record of your device. Unlike the KDZ method, this one makes a "ULTRA HARD RESET". Our device is not registered as selling model, yet the hardware is identical to the model of the consumer. We'll do the flash rom, and also unlock the device so that it is compatible with the KDZ flasher once and for all!

Once you’ve downloaded all the archives, let’s begin. Go to victory.

1. Extract “LGFlashTool 1.2” and instal "Setup_LGFlashTool_1.2.45.921.exe"

2.Replace the file LGFlashTool.exe into C:\LG\LGFlashTool ( You will crack the software with this )

3. Extract and Install “OMAPFlashInstaller-4.10(2).zip”

4.Exract “LGUnitedModemDriver_WHQL_ML_Ver_4.9.7_All_Wi n7_LG EAll.zip” and Install“LGUnitedMobileDriver_S497CA20_WHQL_ML_Ver_ 1. 0 .exe ” and“LGUnitedMobileDriver_S497MA20_WHQL_ML_Ver_1. 0 .exe ”

5. Turn Off phone, Remove your phone’s SIM and SD cards.

6.Press and hold voll up button in LG P880.

7. When you holding “voll up button” connect the USB cable.

8.When computer detects the new hardware (Omap4430) release “voll up button”.

9. Install the Driver.

10.After Driver installation, go to device manager and change the port “LGE CDMA USB SERIAL PORT” to “com41″.

11. Run LGFlashTool.

12.In DLL select the proper DLL file you’ve downloaded.

13. In S/W select only the proper DZ. File you’ve downloaded.

14.Choice (Check) “USB” and click OK.

15. Click on Port COM settings(COM plug icon) and select "1" ( Unmark the numbers above )

16. Click start(The Port 1 window should appear READY).

17.Disconnects USB cable and wait 5 seconds.

18. Press and hold voll up button in Lg P880 and connect USB cable.

19.The update process will begin automatically after that release the “vol up”.

20. When the progress bar reaches 100%, the phone will power on and boots automatically!

21. Done! You did it!

22. Now go and flash a KDZ file as your choice using KDZ updater! Your phone was’nt more a developer phone! We transformed it on a consumer phone edition! Wow!;)

Id like to thanks all if you!

And dont forget to thanks hitting the "thanks" button!