This is what is happening to me. I was trying to flash Miroslav's Cyanogenmod 11 RC2 with Philz Touch 6.07.9, but none of the recomended methods worked for me, I just got stuck on lg logo bootloop - I really want this rom but it is hard as f**k to flash -. So I tried to go back to CM 10.2.1 and got the "Status 7" error. Very frustrated, I finally used my stock recovery image and it worked fine.
From this point, i was recovering my apps and data using titanium back up and when it finished, a notification asked if I wanted the official system update. I refused it and proceded to reboot. Now the phone boots instantly to recovery mode and show the purple screen of Philz touch. First I wiped cache and dalvik and got the same bootloop. Then I wiped cache, dalvik and factory reset and got the same bootloop. Finally, I formated system, factory reset, wiped cache, wiped dalvik and flashed again my recovery image, and got again the recovery mode bootloop.
Any Ideas? Thank you for your help.
EDIT: I must clarify that when I flash my recovery image, it ALWAYS get suck on a part that says something like "installing android security". I have to press power button 10 seconds to restart but it boots normaly in the stock rom.