Thank You , i did not use the most recent version.
I have now downloaded version 4.6 and it worked !!
do you know if there are free unlock codes available for this phone somewhere ?
Mine is a straighttalk phone and they will not provide unlock code because i have not had 12 months phone service using this phone on straighttalk.
I have also checked a couple of the online places for paid unlock codes and they do not have the codes for this phone.