Lg optimus l7 boot loop

Hi, my phone is stuck in boot loop afte installing chainfire 3d with the LG Optimus L7.
I tried to go in emergency mode but doesnt seem to happen anything. Itried to us kdz updater to reinstall the A 4.1.2 JB (the one I installed by the official way, I tried to do it agin but I still got the same android verison sooo...) And do not ask me to enter CWM because I got THE O SO FAMOUS boot error. Secure Boot Error
Cause: Boot Verification .....
So please help me by otherwise unlocking the CWM or exiting the boot loop.
Thank you.
Asked Oct 05, 2013

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