[Update] The Software Update for T-mobile LG Optimus L9 (LG P769BK) revision ‘V20H’ is available for download.
Notes: Please notes that this is the ROM for T-mobile LG Optimus L9 (Model: LG P769BK) only.
Visit LG OpenSource Code website Here to find out the difference of the ROMs for P769 and 769BK.
[update] Those who are looking for latest device driver Ver 3.10 for lg optimus p769bk , please visit here to download.
You Can use LGExtract to convert KDZ roms to BIN/FLS automatically in a double click for flashing with SmartFlashTool.
Download LG Extract Here
Please visit forum.xda-developers.com website for further details on how to convert KDZ Roms to BIN/FLS.