[Q] CWM Recovery doesn't recognize device model topic

I just rooted my Galaxy S2 using Odin and the kernel named: speedmod-kernel-s2-jb-k5-3-Odin

Root worked just fine.

Then I installed CWM via Google Play. Rebooted in Recovery mode, and looked for a custom ROM to install. The problem is when I select the zip file to be installed, CWM will say something like:

Can't install this ROM. This rom is for galaxys2 i9100 ..... This is a ' '.

The blank space between the colons should show the mobile model name. It is emtpy. Just as if CWM was missing some string, which the program checks with the ROM before starting the install.

Got completely no idea on what's wrong.

May I try to flash another kernel incluiding a CWM? Can I do that following just the same steps I did to root the phone, but with a different kernel? Any idea on what's gone wrong here?

Thanks in advance for your help.




EDIT: I am usint JB 4.1.2, I followed this guide to root it: (can't publish full link): wccftech.com/guide-root-xwlsn-android-412-jelly-bean-galaxy-s2-i9100/