I have a LG P769 that is stuck at the tmobile logo, I have followed the instructions in this post, but after step 15, the flash tool shows me this:
PID: NULL IMEI: NULL StartDownload() RomBinary Download set Port 41 RomBinary Download start lgP769_cp.fls StartDownload Exception F00000002
For all those who are having issues with "Download Fail!!" after 6 or 7 seconds, do the following (I'm sure there's an easier way, but I didn't care to dedicate too much time, I just found the simplest/quickest solution)
Go To: Place KDZ IN HERE --> Tools
Right click on "EXTRACT KDZ TO BIN" then click Edit
Find the following line DEL "%BIN%[*].bin" *.fls and change it to DEL "%BIN%[*].bin"
Use the tool as you normally would, then when you're following the directions, instead of just adding the .bin file to the list of files, also select the .fls file....all will be fine...****, I didn't even have to change the port number on the phone...but that might have been a fluke.
Enjoy, I hope it helps.
(Note: I rarely check XDA these days, and I almost NEVER check/answer PMs, sorry guys)