I've decided that this should be in it's own thread as it is relevant to most of the work going on right now and should not be buried inside of another thread.
Here is instructions on how to flash a new firmware. I take no responsibility if your mess up your phone in the process. If you do something wrong, you will brick your phone, especially if it's during the final steps as flashing the cab actually deletes your recovery partition before flashing the new one.
KP500 (http://androidfiles....ls/LG_Tools.zip) - Personally hosted, so please don't hammer the site
LG Mobile Support Tool from LG site (http://www.lg.com/us...-VS920#software)
Note: (They removed the link to the update tool from the VS920. Here is the direct link if you can't find it buried in their site. http://csmg.lgmobile...B2CAppSetup.exe )
.cab file containing your firmware
3.02 - http://csmgdl.lgmobi...2.P58012.R5.cab
4.04 - http://csmgdl.lgmobi...4.P58012.R5.cab
6.00 - http://csmgdl.lgmobi...0.P58013.R5.cab (no longer downloadable from site. Grab 4.04 to downgrade to GB)
7.15 (ICS) - http://csmgdl.lgmobi...5.P58014.R5.cab (no longer downloadble from site. Grab 8.08)
8.08 (ICS) - http://csmgdl.lgmobi...0.P58017.R5.cab
Unified Verizon Drivers : Either get these from your phone while in charge only mode or from this link which is the same file http://androidfiles....WHQL_v2.3.1.msi
An internet connection on the PC you are working from. The LG tool needs an internet connection while flashing the phone or it will fail. If you have a firewall asking if you want to let the LG Tool talk to the internet, let it.
Charge your battery to full, not just 80% or so.
Run the driver package and let it run its course. It will appear as thou nothing is happening for about 30 seconds, then the installer will finish running. Then set phone to Debug mode and make sure all additional drivers install correctly. If you have adb on your PC, you can test your connection buy running ADB shell and seeing if your phone connects correctly
Go into your Windows Device Manager and disable the device under Modems -> LGE AndroidNet for VZW USB Modem
Remove your battery and remove your memory card.
Reboot your phone in "Download Mode" (re-insert your battery and replace the back plate. Hold down vol up + vol down. Plug in usb cable while holding both buttons.)
I highly recommend using the official cable that came with the phone when doing a flash and not being on and USB hubs.
Extract KP500 tool into a directory (i.e. C:\KP500)
Move your .cab file to the same directory
Run your KP500 file as administrator
Choose I "Flash with assistance (file .cab)
Phone Model = VS920
Input the full path to your cab file including .CAB at the end (i.e. C:\KP500\VS920Z3_02.S3_02.P58012.R5.cab)
Input the full file name of your cab (aka version) without the Cab (i.e. VS920Z3_02.S3_02.P58012.R5)
Watch as the LG update tool pops up.
It will most likely tell you that your phone is disconnected. This is normal and to be expected
It will find your phone and go thru extracting the cab file and then extracting a .bin file.
At this point if you did something wrong with driver setup or not disabling the modem driver, you will get a page error. If you did it right, you will get a percentage indicator that goes past 15%. Every so often a message will go by about "model dll message not found". This is normal.
Wait for your phone to finish flashing and let it reboot on its own. I did not do a factory reset and everything came back as it was, but with a new firmware version. You may wish to do a factory reset just to be safe.
Enjoy the fact that you can now recover your phone if you do something wrong (in most cases)
Edited by Neph, 20 May 2013 - 07:28 PM.