[LG Optimus 3D] the ManaWhoney:
CWM I have read may prevent LG flashtool from working. I would try to use the guide above and download files from step 1 (bag of goodies) and step 5 (wkparks bootloader tool 1.21). Also you will need to download a From in bin/fls format or download v28blrg from the link above. Go to control panel and uninstall all LG or LGE mobile drivers. Reboot CPU. After cpu is up DISABLE ALL ANTIVIRUS PROGRAMS and unzip bag of goodies.zip and wkparks tool .zip. open bag of goodies and go to omap folder andbInstall omap flash setup and then install both sets of LG mobile drivers. The second one will give an unsigned warning; install them anyways. Now install LG flash tool 1.1. After that take the LG flashtool.exe from the folder "FILE" and paste it over the original one in folder "flashtool 1.1". Now open start menu and right click on computer and click manage to open device manager. Pull out your battery, sd card, and sim card and plug in your phone. Now hold down VOL UP+Power button and slide in your battery but do not let the buttons go! After a few seconds drivers should begin installing (you are now in download mode and you can release your buttons) let all the drivers install (omap4430 will probably fail). Once that's done look under ports and settings for LGE CDMA USB SERIAL PORT. Right click on this and open properties. Click on ports and settings (think that's what its called :)) and click on port and change the number to 41. Apply and save it. Disconnect your phone. Now open flash tool 1.1 and click manual at the top left. Insert your LGP925_110628.dll in the dll spot and add any .bin and .fls file in the option below it. If you are trying v28blrg then only the .bin file is needed. Now click on usb and click ok or add or whatever is at the bottom(sorry doing this from memory) now click on the picture of the serial port cable. There should be a long list of boxes (1-16) click on 1; the top three boxes should be marked. Click ok. Now clivk the yellow arrow. With battery out connect your usb. Now hold VOL UP+power and slide in you battery and again keep buttons held down until you see the flash tool begin to work. Once it starts flashing you can let go of your buttons. Wait about 10- 15 min and phone should flash. If your flashing V28Blrg your Phone stops flashing around 80% and your sd card will be coerupted. At this point you need to hold VOL DOWN + power and don't let go. When phone boots up it should go to a black factory reset screen. Hit power twice to confirm. Phone will wipe and reboot. Once phone boots up, skip setup and go to settings/storage/and format internal memory. If this helps or you get this far let me know and we will continue.

---------- Post added at 08:05 PM ---------- Previous post was at 07:47 PM ----------

also if you don't want to do all that here is a V30B rooted .zip http://xdaforums.com/showthread.php?p=39303420that you can flash. Just wipe cache dalvik, data reset, and format system and flash the zip file. This would be easier if it gets you up and running :D

---------- Post added at 08:10 PM ---------- Previous post was at 08:05 PM ----------

CWM I have read may prevent LG flashtool from working. I would try to use the guide above and download files from step 1 (bag of goodies) and step 5 (wkparks bootloader tool 1.21). Also you will need to download a From in bin/fls format or download v28blrg from the link above. Go to control panel and uninstall all LG or LGE mobile drivers. Reboot CPU. After cpu is up DISABLE ALL ANTIVIRUS PROGRAMS and unzip bag of goodies.zip and wkparks tool .zip. open bag of goodies and go to omap folder andbInstall omap flash setup and then install both sets of LG mobile drivers. The second one will give an unsigned warning; install them anyways. Now install LG flash tool 1.1. After that take the LG flashtool.exe from the folder "FILE" and paste it over the original one in folder "flashtool 1.1". Now open start menu and right click on computer and click manage to open device manager. Pull out your battery, sd card, and sim card and plug in your phone. Now hold down VOL UP+Power button and slide in your battery but do not let the buttons go! After a few seconds drivers should begin installing (you are now in download mode and you can release your buttons) let all the drivers install (omap4430 will probably fail). Once that's done look under ports and settings for LGE CDMA USB SERIAL PORT. Right click on this and open properties. Click on ports and settings (think that's what its called :)) and click on port and change the number to 41. Apply and save it. Disconnect your phone. Now open flash tool 1.1 and click manual at the top left. Insert your LGP925_110628.dll in the dll spot and add any .bin and .fls file in the option below it. If you are trying v28blrg then only the .bin file is needed. Now click on usb and click ok or add or whatever is at the bottom(sorry doing this from memory) now click on the picture of the serial port cable. There should be a long list of boxes (1-16) click on 1; the top three boxes should be marked. Click ok. Now clivk the yellow arrow. With battery out connect your usb. Now hold VOL UP+power and slide in you battery and again keep buttons held down until you see the flash tool begin to work. Once it starts flashing you can let go of your buttons. Wait about 10- 15 min and phone should flash. If your flashing V28Blrg your Phone stops flashing around 80% and your sd card will be coerupted. At this point you need to hold VOL DOWN + power and don't let go. When phone boots up it should go to a black factory reset screen. Hit power twice to confirm. Phone will wipe and reboot. Once phone boots up, skip setup and go to settings/storage/and format internal memory. If this helps or you get this far let me know and we will continue.

---------- Post added at 08:05 PM ---------- Previous post was at 07:47 PM ----------

also if you don't want to do all that here is a V30B rooted .zip http://xdaforums.com/showthread.php?p=39303420that you can flash. Just wipe cache dalvik, data reset, and format system and flash the zip file. This would be easier if it gets you up and running :D you will need wkparks bootloaders for it to boot because it comes with Iodaks kernel inside. If you can't do that here are stock 28B &30a zip files that should work on stock boot loaders. http://xdaforums.com/showthread.php?p=39130435 links to both zips are in this post. Wkparks bootloaders in flashable zip at bottom of post :)