Unable to boot to recovery mode in after trying backup ROM using ROM Manager

Hello Every Body

Appreciate your help as i am new to this .

I have Galaxy GT-N7000 , & I rooted it with Stock Recovery+Safe Kernal + CWM Recovery as in this post

http://forum.xda-developers.com/show....php?t=2217840

it work great with no problem at all , then i update CWM recovery using ROM Manager & try to backup my ROM using ROM Manager , the phone is restarted directly & stuck at Galaxy Note GT-N7000 LOGO and stop booting , i can't go to recovery mode , i can only go to download mode

How to solve this problem ?
is there any solution to fix this problem & keep my data on phone ?

I am a beginer , this is my 1st post & the only thing i do is to root my device and use the apps


Please:
1- write detail instructions or link to a post so i can follow & learn what to do
2- Appreciate to put a link to any needed tools

Thank you