I am assuming that you know your MSL code, if you don't there are many guides on this forum for that.
I am using QPST 2.7 Build 374.
1)You must downgrade your radio to LG2 (search the forum, there are guides to do that)
2)After you downgrade, you will be able to read the phone in QPST EFS explorer.
3)Read the phone with EFS explorer
4)Move NV item 85 to a folder to your desktop. Change it to "000000" hex code 303030303030
5)Load back the NV item back to your phone and Voila, you are done.
After your change your SPC to "000000" you can upgrade your radio again.
Do not PM me, feel free to ask questions on here.