For CM users only, below is the tested firmware for Chinese Miracle II box. Tested and working. Perform back up first before flashing and always do it your own risk.
For CM2 USER Cherry Mobile ASTRO 2 Firmware
Password: preloader88@gsmsandwich
Thanks and credit to Preloader88
Looking for other firmware?
Cherry Mobile ASTRO 2B Firmware PAC File
Cherry Mobile ASTRO 2S Firmware PAC File