load rom D80230d_00.kdz bên dưới
[Chỉ đăng ký mới thấy Links. ]
Flashtool LG mới nhất tại đạy [Chỉ đăng ký mới thấy Links. ]
driver load về [Chỉ đăng ký mới thấy Links. ]

cách khắc phục lỗi và hướng dẫn bên dưới


  1. Download the appropriate firmware file (link above) depending on the model number of your LG G2 and extract the ZIP (if applicable).
  2. Download and install LG USB Drivers on your computer: [Chỉ đăng ký mới thấy Links. ]
  3. Make sure you phone has at least 70% battery juice.
  4. Enable USB Debugging on your device from Settings> Developers options. [Chỉ đăng ký mới thấy Links. ].
  5. Download LG R&D Flash Tool and other files: [Chỉ đăng ký mới thấy Links. ] ([Chỉ đăng ký mới thấy Links. ])
  6. Extract the ZIP file and open the unzipped folder. It contains all necessary tools and files.
  7. Also download this ZIP and extract it: [Chỉ đăng ký mới thấy Links. ] ([Chỉ đăng ký mới thấy Links. ])
  8. Now open LGMOBILEAX folder and copy its contents in C:\ProgramData\ LGMOBILEAX on your computer. The path should be as shown in the picture below. If you get “Update R&D Tool” error later, delete the contents of C:\ProgramData\ LGMOBILEAX folderand copy the new files to this folder from LGMOBILEAX you downloaded at Step 7.[Chỉ đăng ký mới thấy Links. ]
  9. Go to C:\Windows/System32/drivers/etc folder.[Chỉ đăng ký mới thấy Links. ]
  10. Now right click the hosts file and open it with WordPad or NotePad++ (I used the latter).
  11. Now add the following line at the end of the document: 127.0.0.1 csmg.lgmobile.com[Chỉ đăng ký mới thấy Links. ]
  12. Save the changes and close the hosts file. If you are unable to edit the hosts file, do this: go to Notepad or Notepad++ program and open it as administrator on your computer, navigate to the hosts file, add 127.0.0.1 csmg.lgmobile.com at the end and save the changes.
  13. Open LG_KDZ_FW-Update_OfflineFix folder and install the msxml.exe file.
  14. Then open shttps folder and run http.
  15. Now start Windows Enabler and turn it on (system tray).
  16. Then launch UpTestEX_mod2_marwin.
  17. Now boot your LG G2 into Download Mode. To do this, turn off the phone, press and hold the Volume Up key and then plug the USB cable.
  18. As soon as your device get connected successfully LG R&D Test Tool will launch.[Chỉ đăng ký mới thấy Links. ]
  19. Now click the folder icon at Select kdz file option and add the downloaded stock firmware with .KDZ extension.
  20. Then click the Normal web upgrade test button.
  21. You’ll see a new Read Phone Information popup window.
  22. Now click the Start Upgrade button.
  23. Just wait for a few seconds till you see another popup asking you to Select Country & Language.[Chỉ đăng ký mới thấy Links. ]
  24. Finally, click OK to proceed with firmware installation.[Chỉ đăng ký mới thấy Links. ]
  25. When the firmware flashing is done and your G2 boots up, do not forget to perform a factory reset. To do it, press and hold the Volume Down+Power buttons until you see the phone’s screen.



Method 2:

Note: This method requires all preparations (till Step 17) and files mentioned in Method 1.


  1. Open LG_KDZ_FW-Update_OfflineFix folder and run [Chỉ đăng ký mới thấy Links. ].
  2. R&D Test Tool window will appear.
  3. Select the firmware file with .KDZ extension.
  4. Click the Normal web upgrade test button.
  5. Then click Start Upgrade.
  6. When you see select Select Country & Language popup, select a different country than Republic of Korea.
  7. Firmware flashing process will start.
  8. Wait till its completes. Done!


Done! Your LG G2 is now running the newly installed stock firmware. Enjoy!
Restoring Firmware on AT&T/Verizon/Sprint LG G2 (.TOT):

If you own an [Chỉ đăng ký mới thấy Links. ], here’s how you can install the stock firmware to your phone.


  1. Download LG Flash Tool setup file: [Chỉ đăng ký mới thấy Links. ]
  2. Download and install the LG USB Drivers and install on your computer: [Chỉ đăng ký mới thấy Links. ]
  3. Also download the firmware your device from above (extract it if it is a ZIP file):
    • AT&T LG G2 D800 users: Download the STOCK firmware and the DLL file both.
    • Sprint LG G2 D980 users: Download the ZIP file provided on the firmware page.


  4. Now run the Flash Tool setup file and install it. When it is installed, do not launch it.
  5. Enable USB Debugging on your device from Settings> Developers options. [Chỉ đăng ký mới thấy Links. ].
  6. Now install the USB Drivers and reboot the computer. To ensure that the drivers have been installed correctly, put your device in Download Mode and then connect it to the PC. You can boot your device in Download Mode this way: Turn off the phone and press the Volume Up button while plugging the USB cable. In case, this method does not work, try the same procedure with holding the Volume Up and Down keys both.
  7. Then press Windows + X on your computer’s keyboard and select Device Manager. You should see LG phone listed under COM ports. Right click LGE AndroidNet USB Serial Port (COM2)[Chỉ đăng ký mới thấy Links. ] Then select Properties> Advanced and change the COM port to COM41. Save the changes and exit.[Chỉ đăng ký mới thấy Links. ]
  8. When the device drivers have been setup, disconnect your LG G2.
  9. It’s time now to launch the LG Flash Tools, but before doing that—
    • Set your computer’s date to July 2012.
    • Disconnect internet connection.
    • Please note that the LG Flash Tools require a registration serial key to function. You can search the web to find a working serial key for the program.


  10. Open the LG Flash Tool and input the key.
  11. Now you’ll see a dialog box.
  12. Click on Add button on S/W field and load the firmware file with .TOT extension. Then click the .DLL field and add the DLL file here.[Chỉ đăng ký mới thấy Links. ]
  13. Click OK.
  14. Now click on the Yellow arrow button on the top left. Doing this initialize the installation process.
  15. When it is done, you’ll see Ready message.[Chỉ đăng ký mới thấy Links. ]
  16. Unplug your phone now and boot it into Download Mode (see Step 5 above).[Chỉ đăng ký mới thấy Links. ]
  17. As soon as your G2 is connected to PC via USB, it should start flashing the firmware automatically.


At the completion of the process, your AT&T/Sprint LG G2 will reboot automatically and it’ll be running the newly installed stock firmware. Enjoy!


[Chỉ đăng ký mới thấy Links. [Để xem được liên kết bạn phải trả lời chủ đề này.]]