[Q] {Q} How to remove lg f160l seccurity error screen topic

Hi,
I just bought my new lg optimus f160l and messed it up on the very first day...... i uninstalled some system apps and it was working all fine..........then i rebooted it and it got stuck on security error logo....
whenever i try to open it.....i see the lg logo for a sec......the shiny lg logo then.......and then the lg logo with security error written beneath it......then a total black out.

I seriously need help with my mobile. PLEASE PLEASE PLEASE! ANYONE HELP ME!