qamaker supports DB2020 phones only, and K510 is a DB2010. The problem is that there isn't any free tool that supports DB2010 CID50 patching...
kuolas:You used a branded firmware? Probably that is the cause, because this patch cannot disable the flash menus or anything else except the SIM-lock:D.I've tested with a AT&T SonyEricsson W580i and it's works with 2.0. But I lost the flash menues.