Hello.
Sometimes I need sleep and back to real life
About problem :
You can use ANY compatible MT6572 phone preloader. CM2 show list of ID's on selection.
About phone exactly - mostly like it have new HW, which are not compatible with old version. Anyway - strange about CM2 flashed that FW to phone. It should check any byte of eMMC ID to make sure. Will revise it for future updates.