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How to: Update your rooted V9/VC baseband Optimus S to VD w/out losing all your data.
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There seems to be a lot of confusion about how to easily switch over to the VD baseband, so I will throw this up for everyone so you don't have to search or root through hundreds of pages of threads for instructions.
PLEASE READ THE RED WARNINGS IN THE FIRST POST OF SFHUBS THREAD IF YOU HAVE A SPRINT REFURBISHED PHONE.
If you already are rooted and have a custom recovery in place you can easily move from the V9/VC baseband to the newest VD update without having to re-root, or reinstall any of your apps
Prerequisites:
-A fully charged phone
-USB debugging enabled
-Android SDK with ADB tools helps a lot
-The LG Software Updater and drivers installed.
For some reason a lot of people out there are having trouble accessing recovery by pulling the battery and powering on the phone while holding the proper buttons down. I am suggesting to use ADB to reboot to recovery.
Standard Disclaimer: YMMV and do not blame me for any bricked phones or failed flashes. I am just posting up what worked for me and should work for you too
This is tested working by myself and many others.
1. Place the VD baseband compatible rom of your choice onto the root directory of your SD card.
2. Boot your phone into recovery and create a nandroid backup of your current rom.
3. Reboot your phone and connect it to your computer.
4. Run the LG updater tool to update your phone to the latest VD baseband
5. Once the LG updater is done flashing the firmware to your phone, your phone will reboot. I let my phone boot all the way up to the point where it was asking me to download a sprintID theme.
6. Fire up the command prompt! Go to your android SDK tools folder and type the following into your command prompt (not in an adb shell)
adb reboot recovery
7. Nandroid Restore the backup you made in step 1 then reboot your phone.
8. Wipe Dalvik Cache and Wipe Cache (no need to wipe data as that is nothing but all the apps you would be reinstalling anyways.)
9. Flash your VD compatible rom of choice to your phone and then select reboot when it is done flashing.
10. Your first boot might take a minute due to the phone having to rebuild the dalvik cache. Enjoy your phone still rooted, with all your apps, and the VD baseband compatible with all new versions of Thunderom and Nrom.
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* Note *
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Ok just want to clarify exactly what I did in case anyone else runs into this problem of getting hung up on the LG screen.
-I followed steps 1-7.
-After I restored the nandriod backup and rebooted, I got stuck on the LG screen for over 10 minutes.
-Pulled battery. Waited a minute. Installed battery and held Volume down, Home, and Power and got back into recovery.
-Wiped Data, Cache, and Dalvik then flashed the VD compatible ThundeRom zip.
-Phone rebooted fine. Had no apps, contacts, or any other settings restored, but I did not have a brick, so who cares.
-Also I flashed Zefie's 008 Kernel and the Stock Button zip.
Everything works great.
Not sure why some people (me) had problems with this method, but none the less I still got VC with custom recovery and still rooted. What more can you ask for.
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