teclast f5 bio's update - TechTablets

so i bought the first batch of f5''s but i've read on the russian f5 forums that a bios version 3.06 was included in the second batch of f5's.  mine shows i have 3.05 bios anyone know how to update there f5's bio's to latest version or is there a download somewhere?  I'm thinking people who bought …