Default [Q] bootloop - need help please

it started when I got software update notification on my phone. as I don't use custom rom I thought it's just gonna be ok updating its software. after installing update it asked me to reboot,I did it and that's it, stuck in recovery mode
I've tried to use factory reset, restore it but nothing changed.I use cwm 6.0.4.

what should I do?or is it my stupid move from the beginning by installing update software in my rooted phone?

really need help as I'm still a beginner to play with android
thanks a lot for any help