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LG Qualcomm Based Phones Flashing / Upgrading / Debranding Tutorial

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    Phones based on Qualcomm platform are flashed with LGMDP, LGDP1, LGDP2 etc. Several updates came for these flashers.You need the USB cable, UART flashing not supported for this platform.

    Flashing with LGMDP

    1. Install LG United Modem Driver, connect the phone to PC through USB cable and let the drivers to be installed.
    2. Open LGMDP soft, click on the Select Port, new window will pop up.Your phone model and firmware version will be showed up there, if the phone is supported with that LGMDP version it will be automatically ticked on the checkbox. Now click Connect.
    3. A new window will pop up for firmware selection. Browse and select your firmware folder in the Select Image box, all files will be automatically selected. You can change any certain file from the browse button. If you are using a DZ firmware click DZ button on the right lower corner of the window and and select that.
    4. Select data handling option:
    NV Backup/Restore: NV Backup/Restore always have to be done, and it is default selected option. Backup the NV data and restore the backed up NV data automatically.
    Reset database & Contents: User related data including the setting data on the EFS is reset in the handset. The contents in the handset will be erased.
    Erase_EFS: The calibration data, user contents, media, and module will be erased. Only calibration data is kept when NV backup/restore is checked.
    Keep All Contents: No user data will be erased.

    • Now click Start and relax.

    Emergency Download Mode: Qualcomm phones support a special mode named emergency download mode. In this mode, minimum units for downloading is occured so that users can download the images again in case of emergency situation. AMSS Modem, Media and Module Images won't be flashed in this mode. You may need it when the phones not power on normally/incrorrectly flashed earlier etc.

    Flashing with LGDP2

    1. Downlaod LGDP2 V36 UMTS Setup and extract, go to LGDP2_31_INCLUDE_LGDP1_Setup folder and install the exe (use serial number). Now copy all the files from DOWNLOAD folder and paste on C:\DOWNLOAD (overwrite if needed).
    2. Install LG United Modem Driver, connect the phone to PC through USB cable and let the drivers to be installed.
    3. You'll need firmware in DZ format and the correct DLL for your model.
    4. Open LGDP2_V36_UMTS (for example) from C:\DOWNLOAD, select UMTS in Division and click OK.
    5. Select port (check Device Manager for LG USBModem Port number), you can set a range from easy select or select manually. Select DLL and select firmware in Downlaod Configuration. Click OK.
    6. Click START in main window and connect the phone in Emergency download mode.

    LG Qualcomm Based Phones:

    Qualcomm: BL20, BL20e, BL20GO, BL20T, BL20V, BL40, BL40e, BL40f, BL40g, BL42k, CB630, CT810, CT815, CU405, CU500, CU500V, CU515, CU575, CU720, CU915, CU920, GD570, GD570AQ, GD880, GD880f, GD880g, GM630, GM730, GM730e, GM735, GM750, GM750h, GM750n, GM750Q, GR700, GS505, GT540, GT540f, GT540g, GT540GO, GT540R, GT950, GU280, GU280f, GU285, GU285f, GU285g, GU290, GU290v, GU292, GU295, GU295g, GW620, GW620f, GW620g, GW620R, GW820, GW825, GW825v, HB620, HB620T, KB620, KB770, KB775f, KC910, KC910e, KC910i, KC910Q, KC910Qa, KE990, KE990c, KE990d, KE998, KF310, KF311, KF390, KF390Q, KF690, KF700, KF701, KT610, KT615, KU250, KU310, KU311, KU380, KU385, KU450, KU800, KU950, KU970, KU990, KU990GO, KU990i, KU990R, TU500, TU515, TU720, U250, U300, U300c, U310, U310c, U370, U450, U830, U880, U890, U900,U960, U990.

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